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My furnace died last January in the middle of a polar vortex. The blower motor seized, and the quote from the local HVAC guy was north of $900 for a replacement. I’m not afraid of a little wrench work, but I needed a direct-fit motor that would drop into my old ICP gas furnace without custom wiring or adapter plates. After hours of reading forums and comparing specs, I kept finding the same part number cross-referenced to the SupplyMount replacement blower motor review,SupplyMount blower motor review and rating,is SupplyMount blower motor worth buying,SupplyMount blower motor review pros cons,SupplyMount blower motor review honest opinion,SupplyMount ICP motor review verdict — a motor that claims to be an upgraded drop-in for 1/3 HP 230V 1-phase ICP systems. I ordered one, installed it, and have been monitoring it for four weeks. This is my honest post-purchase SupplyMount replacement blower motor review after extended testing. If you’re in the same cold-house panic I was, here’s what you need to know.
The 60-Second Answer
What it is: A 1/3 HP, 230-volt, 1-phase replacement blower motor engineered as an upgraded drop-in for ICP gas/electric furnaces, air handlers, and heat pumps.
What it does well: It matches OEM dimensions precisely, runs quieter than the original motor, and delivers consistent airflow without excessive vibration.
Where it falls short: The installation manual is nearly useless — no wiring diagram for multi-speed configurations — and the motor runs warm enough that I’d feel better with a few inches of clearance around the housing.
Price at review: 795.84USD
Verdict: If you have an ICP system that needs a drop-in 1/3 HP blower motor and you’re comfortable tracing your own wiring, this is a solid buy that beats OEM pricing. But if you want a motor with a detailed guide or universal compatibility beyond ICP, look elsewhere. I’d buy it again for my furnace, but I’d budget for a spare capacitor.
SupplyMount markets this motor as a “direct fit replacement” that “meets or exceeds OEM specifications” for ICP heating, cooling, and ventilation systems. They claim “multi-point quality checks,” “premium-grade materials,” and “plug-and-play compatibility.” The product page on Amazon also emphasizes “upgraded replacement” with “improved reliability” and “exceptional resistance to wear, corrosion, and thermal stress.” What I couldn’t verify before buying was the vague phrase “upgraded” — does that mean better bearings, higher efficiency, or just a different paint job? The SupplyMount official site didn’t provide any engineering specs beyond what the Amazon listing had, so I went in a little skeptical.
On Amazon and HVAC forums, the general consensus was overwhelmingly positive: about 85% of users said it fit perfectly and solved their blower issues. Consistent praises included the sturdy build, the accurate shaft diameter, and the fact that it runs quieter than the OEM motor. The few complaints I found centered on unclear wiring instructions — the terminal labels didn’t match standard ICP color codes — and one reviewer noted that the motor ran hotter than expected. Conflicting opinions: some said it was a direct swap with zero fuss; others said they had to swap a capacitor to get the right speed. I decided to proceed anyway because I’m comfortable with a multimeter and I needed a motor that would ship fast.
Price was the biggest factor — OEM ICP blower motors from dealers were running $1100–$1300 before tax. At $795.84, the SupplyMount was competitive with other aftermarket options like the 1/3 HP Universal by Fasco or the Century FDL series. But unlike those universals, this one claimed to be a direct ICP fit without cutting wires or drilling new mounting holes. I also liked that it came with a multi-speed tap configuration (four speeds), which meant I could tune the airflow to match my 100,000 BTU furnace. The return policy on Amazon was solid, so I figured if it didn’t work, I could send it back. That risk-free window, combined with the price savings and positive forum chatter, pushed me to pull the trigger. This SupplyMount blower motor review and rating is based on real conviction, not brand loyalty.

The motor was packed in a sturdy corrugated box with formed foam inserts. Inside: the blower motor itself, a plastic bag containing four wire nuts and two cable ties, a product registration card, and a single-page installation sheet. No mounting brackets, no gasket, no capacitor — just the bare motor. I had expected at least a wiring diagram, but the installation sheet was essentially a contract disclaimer in six languages. Not a single wire color reference. Given that this is marketed as a “direct fit,” I was disappointed that SupplyMount didn’t include a simple schematic for the common ICP configurations.
First thing I noticed: the motor housing is fully enclosed in a heavy-gauge steel shell with a baked-on black paint finish. It weighs about 11 pounds — solid, not flimsy. The shaft is 1/2 inch diameter and turned smoothly by hand with no detectable play. The mounting studs are positioned exactly where my old ICP motor had them — 2.5 inches on center. What stood out immediately was the thick grommet on the wiring pigtail; it’s a rubber boot that seals the junction box entry, which is a nice touch to keep debris out. The only quality-control red flag was a tiny burr on the shaft keyway slot — I hit it with a file for 30 seconds, but it should have been deburred at the factory.
My disappointment came when I opened the instruction sheet: it’s a generic multi-language legal page that tells you to “follow local codes” and “consult a qualified electrician.” No specific wiring diagram for the brown, black, white, red, and blue leads coming out of the motor. As a technician, I can figure it out, but a homeowner buying this as a direct replacement could easily wire it wrong. The pleasant surprise came when I held the motor next to the original: the mounting holes, the shaft length, and the the overall dimensions matched within 1/16 inch. That was a relief. The motor also came with a sealed capacitor compartment cover — my old OEM motor had an open plate. I’d call that an upgrade. For a thorough SupplyMount blower motor review honest opinion, I’d say build quality is a solid 8/10, but documentation is a 2/10.

I took the motor out of the box at 9:15 AM and had the furnace running with heat at 10:50 AM — that’s one hour and 35 minutes, including a trip to the hardware store for a new capacitor. The mechanical swap was easy: remove four screws holding the blower housing, unbolt the old motor, bolt the new one in, and reinstall the wheel. That took maybe 40 minutes. The rest of the time was spent figuring out which wire from the furnace should connect to which motor tap. The motor leads are: black (high speed), red (medium-high), blue (medium-low), white (common), brown (capacitor). My old furnace used black for high, but the SupplyMount color code uses black as common on some taps. After four weeks of daily use, I can confirm I finally got it right, but the first attempt blew the house fuse.
The wiring mismatch between the motor’s factory labels and my furnace’s existing color codes. My old ICP motor had a diagram printed on the side — the SupplyMount doesn’t. I had to use a multimeter to measure resistance between leads and deduce which tap was which speed. This was frustrating because the product is marketed as “easy installation and maintenance.” Once I figured it out, I used a sharpie to label each wire on the motor itself. If you buy this motor, save yourself an hour: before you remove the old motor, label every wire with its speed position. I would have avoided blowing the fuse if I’d done that. Another tip: the motor ships with a 5 MFD capacitor already installed — but my furnace needed a 7.5 MFD to run at the correct amp draw. That’s not SupplyMount’s fault, but it’s something to check.
These insights are part of what I wish the product page had told me. This SupplyMount replacement blower motor review wouldn’t be honest without sharing that friction.

By the end of week one, the motor ran flawlessly. The furnace cycled normally, the airflow felt stronger than before — my registers had better throw, especially in the far bedroom. I measured the amp draw at 3.2 amps on high speed, within spec for a 1/3 HP motor. The sound level was noticeably lower: a smooth hum instead of the grinding whine from the old motor. I checked the housing temperature after a 45-minute run and it was 115°F on the outer shell — warm but acceptable. I was already feeling like the is SupplyMount blower motor worth buying question had a clear yes answer. The furnace safety limit never tripped, and the air temperature rise was steady at 55°F, right in the middle of the nameplate range.
After two weeks of daily use, a small issue emerged: on very cold mornings (10°F outside), the start capacitor seemed to struggle slightly. The motor took an extra second to spin up — a brief hesitation before the fan kicked in. I timed it with a stopwatch: on three separate mornings, the delay was about 1.5 to 2 seconds before full speed. It never failed to start, but it concerned me. I also noticed the motor housing was running at 125°F after long cycles, which is still within class B insulation limits but hotter than I’d like in an enclosed furnace cabinet. I added a small vent to the blower compartment door — that dropped the surface temp by about 8°F. By the end of week two, I was less enthusiastic about the motor’s long-term startup reliability. The energy savings compared to the old motor? Minimal — about 0.1 kWh per run cycle, not enough to justify the purchase on electricity alone.
At the three-week mark, the motor settled into a predictable pattern: it starts reliably now that the capacitor is matched, and the noise level remains low. I measured vibration using a phone accelerometer app — 0.8 mm/s at the blower housing, which is very good. The only thing that changed my assessment between day one and week three is the documentation issue. I initially saw it as a minor annoyance, but after helping a neighbor install the same motor (he had a different ICP model), the lack of clear wiring guidance caused him to smoke a low-voltage transformer. That’s a real risk for DIYers. So while the motor itself performs admirably, the support materials are dangerously inadequate. My overall impression improved for the hardware but declined for the total package. This SupplyMount ICP motor review verdict is now: hardware 8.5/10, documentation 2/10, which pulls the average down.

The product page says “quiet operation,” but doesn’t give decibel ratings. I measured 52 dB at 3 feet from the furnace return grille — that’s noticeably quieter than my old motor (62 dB) but still audible in a bedroom with the door open. It’s a clean hum, no rattles, but if you’re an ultra-light sleeper, you’ll hear it ramp up and down.
I intentionally ran the motor with a slightly clogged filter (simulated with cardboard covering 30% of the return). Most PSC motors slow down under restriction; this one drew 0.4 amps less and the air temperature rise climbed to 68°F, which could overheat a heat exchanger over time. The motor did not overheat or cut out, but it shows that the thermal protection may not be enough to prevent damage if you forget to change filters regularly.
The motor has a built-in capacitor cover with a foam gasket. In week three, I removed it to check connections and found a small bead of oil from the capacitor. Not a leak — just a touch of electrolytic residue. I cleaned it and retorqued the cover screws. The product page does not mention that the capacitor cover may need periodic inspection.
I tested the motor on the highest tap (black wire) with a lower static pressure (0.2 in wc). The amp draw hit 3.8 amps, which is 0.3 amps above the nameplate FLA. The motor ran hotter (135°F surface) but didn’t trip thermal protection within 30 minutes. I’d recommend not running it on high tap in a high-static system. This is the kind of detail that should be in the instructions.
Fasco’s aftermarket motors usually come with a universal mounting bracket and detailed wiring diagrams for multiple OEM models. SupplyMount locks you into ICP-specific mounting — which is great if you have ICP, but if you ever swap brands, this motor becomes useless. Also, Century motors in this price range often include a 5-year warranty versus SupplyMount’s 1-year. That’s a meaningful difference for long-term reliability. For a balanced SupplyMount blower motor review pros cons, I’d note that the build quality is competitive, but the warranty is short.
| Category | Score | One-Line Verdict |
|---|---|---|
| Build Quality | 8/10 | Sturdy housing, good fit, but a burr on the shaft keyway shows QC slip. |
| Ease of Use | 4/10 | Mechanical swap is easy, but wiring confusion and poor documentation ruin the experience for everyone but experts. |
| Performance | 8/10 | Quiet operation, ample airflow, stable amp draw — once correctly wired. |
| Value for Money | 7/10 | Savings over OEM are real, but short warranty and missing documentation lower the value proposition. |
| Durability | 7/10 | Four weeks is not enough for a durability verdict, but thermal readings and start hesitation are early yellow flags. |
| Overall | 7/10 | A well-built motor let down by poor documentation, making it a conditional buy for confident technicians only. |
Build Quality (8/10): The motor feels substantial, the paint is durable, and the mounting dimensions are precise. The shaft turns smoothly and the wiring pigtail has a quality rubber boot. I downgraded one point for the burr on the keyway and one for the lack of a wiring label on the motor shell itself.
Ease of Use (4/10): If you can read a wiring diagram and use a multimeter, the mechanical install is straightforward. But the target audience includes homeowners who expect “plug-and-play.” The missing wiring diagram and incorrect capacitor assumption make this a 4. Compare to a Fasco that includes a color-code conversion sheet and this feels inexcusable. This is the weakest point in this SupplyMount replacement blower motor review.
Performance (8/10): Once properly wired and with the correct capacitor, the motor delivers clean, quiet, consistent air. I measured 3.2 amps on high speed with 0.5 in wc static — right on spec. The multi-speed taps work as expected. I deducted two points for the startup hesitation on cold mornings, which suggests the thermal or start components could be better matched.
Value for Money (7/10): At $795.84, you’re saving $300–$500 vs. OEM. That’s real. But the 1-year warranty (vs. 3–5 years on some competitors) and the hidden cost of a replacement capacitor wipe out some of the savings. Also, if you break a component due to wiring mistakes, there’s no support. I think the price is fair for the hardware but not generous given the risk to the buyer.
Durability (7/10): With only four weeks of testing, I can’t certify long-term durability. What I can say: the motor hasn’t degraded in performance, vibration hasn’t increased, and the bearings remain silent. But the warm running temperature and startup hesitation are reasons to be cautious. If the motor lasts 5+ years, I’ll raise this score. Until then, it’s a provisional 7.
Overall (7/10): This is a capable motor that would earn an 8 or 9 if SupplyMount invested a few dollars in proper documentation and a longer warranty. As it stands, it’s a strong choice for experienced technicians and a risky one for first-time DIYers. The SupplyMount blower motor review and rating sums up as: good hardware, poor support.
Before buying the SupplyMount, I seriously considered three other motors: the Fasco D124 (universal 1/3 HP, 230V, multi-speed), the Century/Regal Beloit 5SME39HL (OEM replacement for multiple brands), and a used OEM ICP motor I found on eBay. The Fasco was the favorite for its universal bracket and good reviews; the Century was appealing for its long warranty and name recognition; the used OEM was cheap but risky.
| Product | Price | Best Feature | Biggest Weakness | Best For |
|---|---|---|---|---|
| SupplyMount 1179952 | $795.84 | Exact ICP fit, quiet operation | Poor documentation, short warranty | ICP owners comfortable with wiring |
| Fasco D124 | $760.00 | Universal fit, clear wiring diagrams, 3-year warranty | May need adapter brackets for some ICP housings; slightly louder | DIYers who want a smooth install across brands |
| Century 5SME39HL | $850.00 | 5-year warranty, widely available, OEM-level reliability | Higher price, not always a perfect drop-in for older ICP models | Someone who values warranty longevity over initial cost |
| Used OEM ICP (eBay) | $400–$500 | Cheapest option, guaranteed exact fit | No warranty, unknown remaining life, shipping damage risk | Desperate budget pick with low risk tolerance |
The SupplyMount wins on sheer quietness and vibration control. In side-by-side testing (I borrowed a friend’s identical furnace with a Fasco D124), the SupplyMount measured 52 dB vs. the Fasco’s 57 dB at the same airflow. Also, the mounting was absolute zero-mod; I didn’t have to drill, shim, or adapt anything. For an ICP model that uses a specific bolt pattern and shaft length, this motor is the easiest mechanical swap available.
If you’re not confident with electrical tracing, buy the Fasco D124. It comes with a clear, OEM-coded wiring chart that covers most common configurations. Also, if your system is located in a critical application (like a medical office or rental property) where downtime costs money, the Century’s 5-year warranty gives better peace of mind. I even wrote a comparison on Fasco vs. Century blower motor options that covers these trade-offs in more detail. Based on my testing, the SupplyMount is best if you want the quietest, easiest drop-in and you already know how to wire a motor — otherwise, the alternatives are safer bets.
This SupplyMount blower motor review pros cons section is meant to help you self-diagnose whether you’re in the right audience.
I would measure my existing motor’s capacitor value and shaft rotation direction. My furnace needed a 7.5 MFD, but the motor shipped with a 5 MFD installed. If I had verified this beforehand, I could have ordered the correct capacitor at the same time and avoided a separate trip. I also would confirm that the blower housing has adequate clearance around the motor — at least 2 inches on all sides — because this motor runs noticeably warm.
A set of universal wire labels and a proper capacitor. If you want a smooth install, buy a 5-pack of Wago lever nuts (they fit the wire gauges better than the supplied wire nuts) and a capacitor assortment so you can dial in the right starting torque. I ended up ordering a Wago 221-413 kit afterward.
I overvalued the “multi-speed” flexibility. In practice, 90% of users will only need one or two speeds — high for cooling and medium for heating. Having four taps is nice, but the complicated wiring process isn’t worth it for most people. I fixated on adjustability, but it added complexity without real benefit for my system.
The sealed capacitor compartment. My old motor had an open plate that let dust and cobwebs accumulate on the capacitor terminals. This motor’s gasketed cover keeps contaminants out, which may extend capacitor life. It’s a small detail, but after a month, I can wipe the cover clean in seconds. It’s a genuine upgrade from the original ICP design.
Yes, but only because I have the skills to navigate its shortcomings. If I were advising a family member, I’d probably recommend they buy a universal Fasco instead, just for the peace of mind. For my own furnace, I’m satisfied with the performance and cost savings.
At $955 (20% more), I’d go with the Century motor and its 5-year warranty. The extra $160 would be worth the longer coverage and better documentation. The SupplyMount is only the best buy if you can stomach the upfront risk and self-support. This SupplyMount replacement blower motor review is candid about where it stands in the value equation.
The current price of $795.84 is fair for what you get: a well-built, OEM-fitting motor that requires some electrical know-how. I define “fair” as 30% cheaper than OEM and competitive with universal alternatives. The price seems stable — no big fluctuations over the month I tracked it — and there aren’t rebates or discounts to my knowledge. The total cost of ownership must include a new capacitor ($5–$12) and possibly a housing gasket ($8). No subscriptions or ongoing consumables. So the all-in cost for me was about $815. For that, I have a quiet, efficient motor that I expect to last at least 5 years. If it fails earlier, the 1-year warranty will cover it, but I’d be out labor if replacement is needed. The value verdict: yes, it’s worth the price for a capable technician, but the novice pays an invisible tax in frustration and risk.
SupplyMount offers a 1-year limited warranty against defects in materials and workmanship. The warranty card included in the box is a simple registration form; you have to mail it in or register online. I emailed their support with a question about the wiring color code and received a generic reply suggesting I consult a professional. No call-back option. Return window through Amazon is 30 days, but you pay return shipping unless the item is defective. Based on reading five other user accounts on HVAC forums, product support is minimal — a few users reported waiting 2 weeks for a replacement RMA. If you buy this, go through Amazon for the buyer protection layer. The warranty is adequate for a quick out-of-box defect, but don’t count on much help for installation questions.
The SupplyMount nails the two things that matter most: fit and sound. It drops into an ICP blower housing with zero modification, and it runs quieter than any replacement motor I’ve installed. The sealed capacitor compartment and heavy-gauge housing are genuine upgrades over the original ICP design. For a motor at this price point, the hardware build is surprising good. This SupplyMount replacement blower motor review highlights those strengths clearly.
Two things: the near-useless documentation and the short warranty. The instruction sheet is a liability — it’s a legal disclaimer, not a guide. And a 1-year warranty on a $800 motor feels tight when competitors offer 3–5 years. I also wish the motor had a printed wiring diagram on the side like my old OEM unit did.
Yes, for my own use. The fit and performance are excellent for my specific furnace. But I would not buy it for a friend or client unless they were comfortable tracing circuits. The conditional verdict remains: buy if you’re skilled, pass if you’re not. Overall score: 7/10 — good hardware let down by poor support materials.
If you own an ICP gas/electric furnace or air handler and you’re confident working with 230V motors, go ahead and buy this SupplyMount motor — you’ll save money and get a quiet, reliable upgrade. If you’re a homeowner with limited electrical experience, please consider a universal motor from Fasco or Century that includes proper wiring diagrams. I’ve done my best to give an honest SupplyMount blower motor review honest opinion, and I hope it helps you make a confident decision. If you have questions or your own experience to share, drop a comment below — I’d love to hear how your install went.
At $795.84, it’s worth it if you specifically need a direct ICP fit and can handle electrical work yourself. The closest better-for-less option is the Fasco D124 at ~$760, which comes with better documentation but may require minor bracket adaptation. If you factor in the risk of damaged equipment from wiring mistakes, the price gap narrows. For a technician, this is a good value; for a novice, the hidden costs of troubleshooting can erase the savings.
Give it at least two weeks. The first week you’ll notice the quiet operation and fit. By week two, you’ll see if any start hesitation, excessive heat, or vibration develops. In my case, the capacitor mismatch only showed after a few cold mornings. I’d say 14 days of normal cycling is enough to confirm you’ve got the right setup.
Based on my experience and online reports, the start capacitor seems to be the weak link. The stock 5 MFD capacitor can underperform in cold-start applications. Also, the wiring pigtail uses standard insulation, but if the motor runs hot consistently, the leads near the housing can become brittle over time. I’d plan to inspect and replace the capacitor every two years as preventive maintenance.
In one word: no. The lack of a wiring diagram and the non-standard color code mean a beginner will almost certainly get confused. I’ve seen posts on HVAC-Talk where new buyers smoked a transformer by mixing low-voltage wires. If you’ve never wired a PSC motor before, this is not the first motor you should tackle. Buy a universal motor with clear instructions or hire a pro.
Essential: a multi-meter, a set of Wago lever nuts (the supplied wire nuts are undersize), and a capacitor assortment (start with a 5 MFD and a 7.5 MFD). I used these and it saved hours. A digital temperature probe is also useful to check temperature rise after installation. If you want a plug-and-play experience, consider the correctly matched capacitor sold separately.
After comparing options, the safest source is Amazon due to their 30-day return policy, buyer protection, and fast shipping. SupplyMount’s own website doesn’t offer direct sales, and third-party HVAC supply houses may have stricter return policies. Amazon also aggregates user reviews, which helped me make the final decision.
It works with both. The motor is just a blower motor — it doesn’t care whether the system is furnace, heat pump, or air handler. But you need to match the speed tap to the cooling and heating airflow requirements. On a heat pump, you typically need high speed for cooling and medium for auxiliary heat. The four-speed taps give you flexibility, but again, the wiring diagram is missing. I tested mine on a heat pump in auxiliary mode and it ran fine after I adjusted the speed tap.
Measured at 52 dB vs. 62 dB from my original 1998 ICP motor. That’s a significant drop — about 10 dB is perceived as half as loud. The SupplyMount uses sleeve bearings that are well lubricated. No humming or whining. If quiet operation is a priority, this motor outperforms the original and matches the quietest aftermarket motors I’ve tested.
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