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If your Mitsubishi Eclipse has uneven blower speeds or the fan only works on one setting, the blower motor resistor is a common point of failure that affects cabin comfort and HVAC performance. Choosing the right resistor matters because fitment, electrical capacity, and thermal resistance determine whether the repair restores reliable fan control and avoids repeat failures. This guide presents our shortlist of the top blower motor resistors for Mitsubishi Eclipse, selected for proper fit and build quality. We evaluated parts for fitment accuracy, heat tolerance, and connector integrity to help you identify long-lasting replacements. Read on for practical buying factors and answers to common questions before you pick the right part for your vehicle.
Looking for other parts? See all Mitsubishi Eclipse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | GM Genuine Parts Blower Motor Resistor (15-80879) |  |
| Most Popular A crowd favorite that many people choose with confidence | AA Ignition HVAC Blower Motor Resistor (replacement) |  |
| Best Quality Built to a higher standard if you want something more solid | STETIG Blower Motor Resistor — Replacement for select Ford vehicles |  |
| Best Budget The cheapest option that still gets the job done reliably | Dcmr Blower Motor Resistor – Fan Control Module |  |
| Most Sold A high-volume bestseller chosen again and again | FAERSI Blower Motor Resistor (manual AC) |  |
| Best Value for Money The sweet spot between price and what you get | Dorman 973-430 HVAC Blower Motor Resistor Kit |  |
| Best Overall The best all-around choice for most situations | Dorman 973-025 Blower Motor Resistor |  |
1. GM Genuine Parts Blower Motor Resistor (15-80879)
| Manufacturer | ACDelco |
|---|---|
| Brand | GM GENUINE PARTS |
| Model | Blower Motor Resistor |
| Manufacturer Part Number | 15-80879 |
| OEM Part Number | 15818910 |
This GM Genuine Parts blower motor resistor is a direct factory-quality replacement that restores the multiple fan speeds in the heating and air conditioning system. It installs in place of the original resistor and provides stepped voltage drops so the blower motor will run at low, medium, and high speeds rather than only full speed. Typical use is a targeted repair when a vehicle loses low or mid blower settings and only high speed remains. The part is compact, machined, and labeled with GM part numbers for straightforward identification. Because it is a genuine GM part manufactured to factory specifications, it is likely to fit and behave like the original component and reduce the chance of early failure compared with low-cost aftermarket boards. Limitations are that it is a single replacement part so it will not fix unrelated HVAC failures such as a faulty blower motor, blower control module, or wiring issues, and correct fitment must be confirmed for the specific vehicle application before purchase.
Best for: Reliability-focused buyers who prioritize factory-quality replacement parts to maintain original HVAC performance and want a direct like-for-like repair for speed loss.
Less Ideal for: Drivers looking for a broad HVAC overhaul, a universal aftermarket substitute, or fixes for blower motors and control modules should consider other parts or professional diagnosis first.
- Factory-quality GM genuine part designed to match original fit and function.
- Restores multiple blower fan speeds by providing stepped voltage drops.
- Compact, machined construction with clear manufacturer part numbers for easy identification.
- Only addresses resistor-related speed problems and will not repair a bad blower motor or HVAC control module.
- Fitment must be verified for the vehicle, it is not a universal solution.
Verdict A genuine GM blower motor resistor that reliably restores lost fan speeds when the resistor is the root cause, but it only fixes resistor-related issues.
2. AA Ignition HVAC Blower Motor Resistor (replacement)
| Manufacturer | AA Ignition |
|---|---|
| Item model number | 3F2Z-18591-AA |
| Applies to | Manual A/C blower systems |
This blower motor resistor is a direct-replacement style part that restores blower fan speed control when the climate system no longer responds to the fan selector. It is intended for vehicles with manual A/C controls and ships as a resistor assembly that installs in place of the failed unit. Typical use is a straightforward under-dash or behind-center-console swap where you remove the old resistor, unplug the connector, and refit the new assembly; several listings include a harness pigtail to simplify wiring. The practical benefit is quick, low-cost repair that returns full speed range and avoids removing the blower motor. Reports from users show good fit and immediate fixes on a variety of Ford/Lincoln/Mercury platforms, though longevity varies between installs. This part is not a factory-manufactured resistor so long-term durability may be less consistent than higher-end factory-quality replacements, and fit depends on matching the correct part variant for your vehicle. For a Mitsubishi Eclipse, confirm the resistor part number and manual A/C configuration before buying to ensure fitment.
Best for: Practical, convenience-driven buyers looking for a quick, low-effort repair to get a manual A/C blower working again without a shop visit.
Less Ideal for: Buyers who prioritize maximum longevity or want a factory-quality replacement should consider dealer or premium branded resistors instead.
- Restores full blower speed control without replacing the blower motor
- Direct-replacement form designed for simple removal and install
- Includes harness/pigtail options on some listings to simplify wiring
- Widely compatible with many manual A/C vehicles which makes part-finding easier
- Not a genuine factory part which can mean variable long-term durability
- Fitment depends on selecting the correct variant for your vehicle which can require verification
- Some users report units failing after a few months in heavy-use climates
Verdict A budget-friendly, easy-to-install replacement that quickly restores blower speed control but may not match factory-level longevity.
3. STETIG Blower Motor Resistor — Replacement for select Ford vehicles
| Brand | STETIG |
|---|---|
| Item model number | 18B647-1466-AB |
| Manufacturer Part Number | 18B647-1466-AB |
| OEM Part Number | 4P1587, 973442, RU572, 20370, YH1826, 973-442, RU-572, YH-1826, 6W7Z19E624A, 8W7Z19E624A, F8VZ19E624AA, JA1710, XQ1Z19E624AA, XW1H19E624AB, XW1Z19E624AA, YW1Z19E624AA |
This blower motor resistor is a direct-replacement style unit intended to restore blower fan speed control when the original resistor fails. It installs in the HVAC housing and reconnects the low and mid-speed circuits that commonly stop working, returning full multi-speed operation rather than leaving the fan on high only. The listing includes multiple cross-reference numbers and the design is claimed to meet factory fit and function standards, so it is targeted at technicians and experienced DIYers who need a like-for-like repair component. In use it offers a simple swap-in repair that is far less invasive than replacing the whole blower assembly, and many buyers report straightforward fixes to intermittent or no-blow conditions. Performance-oriented users will appreciate the focus on functional replacement quality, but a few reviews note occasional early failures or limited compatibility with some vehicle variants, so double-check connector and mounting fit before installation. Installation on older cars can require patience with brittle hoses and trim, so plan for basic hand tools and modest labor time.
Best for: Performance-oriented buyers who prioritize restoring precise HVAC blower control and prefer a focused, factory-quality replacement to recover full fan speed functionality.
Less Ideal for: Buyers seeking a plug-and-play solution for vehicles outside the stated fitment or those unwilling to verify connector and mounting compatibility should consider vehicle-specific alternatives or professional parts matching.
- Designed to meet factory fit and function for straightforward replacement
- Restores full multi-speed blower control without replacing the entire blower motor
- Cross-reference coverage for many OEM part numbers simplifies matching the correct part
- Compact, simple unit that is easy to handle during installation
- Not guaranteed to be compatible with every vehicle variant without checking connector/mounting details
- A minority of buyers report early failure or limited long-term durability
- Installation can be fiddly on older cars with brittle hoses or tight access
Verdict A focused, factory-style replacement for restoring multi-speed blower control, but confirm connector and fitment for your Eclipse before buying.
4. Dcmr Blower Motor Resistor – Fan Control Module
| Voltage | 12 Volts (DC) |
|---|---|
| Speed | 3000 RPM |
| Horsepower | 0.2 Horsepower |
| Material | Metal, Plastic |
This Dcmr blower motor resistor replaces the fan speed control element in a vehicle HVAC system and restores multiple blower speeds when the original resistor has failed. It installs into the blower housing and is used whenever a fan is stuck on one speed or not working at all, making it a straightforward repair for basic climate control problems. The unit lists common compatible part numbers and operates on 12V systems, so it is a simple, low-cost swap for drivers who need to get the fan working again without replacing the blower motor. Practical benefits include a compact metal and plastic construction, direct plug-in style mounting, and positive user reports of fit and function on similar vehicles. Limitations are typical of budget aftermarket parts: fitment can be hit-or-miss on some chassis variations and long-term durability is uncertain compared with higher-end or factory-quality replacements, so check the part number carefully before buying.
Best for: Practical, budget-conscious owners looking to fix a nonworking HVAC fan on a Mitsubishi Eclipse without paying for a factory-level part or full blower motor replacement.
Less Ideal for: Shoppers seeking an exact factory-quality part or long-term durability for high-mileage or heavy-use vehicles should consider OEM replacements or higher-end aftermarket options.
- Affordable replacement that restores blower speed control
- Direct-replacement design for plug-in installation
- Works on standard 12V automotive HVAC systems
- Compact metal and plastic construction that fits behind the dash
- Aftermarket fitment can vary between vehicle submodels requiring careful part-number matching
- Long-term durability may be lower than factory-quality parts
Verdict A low-cost, plug-in blower motor resistor good for short-term HVAC repairs on a budget as long as you confirm exact fitment for your Eclipse.
5. FAERSI Blower Motor Resistor (manual AC)
| Special Features | This Blower Motor Resistor is for Manual AC Controls |
|---|---|
| Manufacturer Part Number | F-10010 |
| OEM Part Number | 4720278, 973020, 68004241AA, 68004539AA, 5012212AA, 1712032, 3A1049, 20116, CR153, RU109, RU876, 1790902 |
| Safety Rating | ISO/TS 16949 Qualified |
This FAERSI blower motor resistor is a direct-replacement HVAC part intended to restore multiple fan speeds on vehicles with manual climate controls. It installs in place of the original resistor assembly and connects to the factory wiring harness, so typical use is a quick repair when you lose low or medium fan settings. The listing highlights tested units and ISO/TS 16949 qualification, which suggests factory-quality process controls, and many buyers report an easy fit and straightforward screw-and-plug installation under the glove box. Practical benefits include quick troubleshooting and cheaper replacement than sourcing dealer parts. Important limitations are mixed longevity reports and at least one serious failure claim; some users found only partial restoration of low-speed operation, and quality can vary between units. If reliability on long-term duty is critical, consider sourcing from a confirmed OE-equivalent supplier or replacing the blower motor at the same time when symptoms suggest motor wear.
Best for: A risk-averse mainstream buyer looking for an affordable, factory-replacement style part to quickly fix HVAC fan speed problems and avoid lengthy downtime.
Less Ideal for: Do not choose this if you need a long-term heavy-duty solution or if you prefer parts with extended validated field life and backed-by-long warranties.
- Direct-fit design for straightforward replacement and plug-in installation
- Manufacturing process holds an ISO/TS 16949 qualification indicating controlled production standards
- Broad OEM part number coverage for easy cross-referencing with factory parts lists
- Customer reports show inconsistent longevity with some units failing prematurely
- Not guaranteed to restore every fan-speed issue if the blower motor or connectors are also faulty
Verdict A budget-friendly, factory-replacement style blower resistor that can quickly restore fan functions but has mixed longevity in the field.
6. Dorman 973-430 HVAC Blower Motor Resistor Kit
| Power Connector Type | 3-Pin |
|---|---|
| Voltage | 12 Volts (DC) |
| Cooling Method | Air |
| Compatible Devices | Cars, Trucks, SUVs |
This Dorman 973-430 blower motor resistor kit replaces an overheated or corroded factory resistor and includes a harness pigtail needed for most repairs. It is designed to restore full HVAC fan-speed operation when a failed resistor causes loss of blower settings. Typical use is a direct repair in the vehicle's HVAC housing after diagnosing a resistive failure; installers will appreciate that the kit supplies both the resistor and connector pigtail so you do not have to source wiring separately. Notable features are a 3-pin power connector, a design intended to match factory function, and an air-cooled resistor rated for 12 V systems. Practical benefits include straightforward fitment for compatible vehicles and the convenience of a complete kit that saves time during the repair. Limitations to expect are that fitment is vehicle-specific so you must confirm compatibility with the Eclipse year and trim, and some users report the replacement materials feel thinner than older originals and that supplied crimp connectors may not suit thicker factory wiring on certain older models.
Best for: Practical optimizers who want a cost-effective, ready-to-install repair kit that restores HVAC fan control without hunting for separate connectors or additional parts.
Less Ideal for: Buyers seeking an exact OEM-specified fresh OEM part or long-term heavy-duty upgrade should consider higher-end or model-specific replacements instead.
- Complete kit includes resistor and harness pigtail so you have the connector and part needed for most repairs
- Designed to replace factory function and restore full HVAC fan-speed control
- 3-pin connector and 12 V rating match common vehicle blower circuits for straightforward installation
- Backed by a manufacturer with wide aftermarket experience and engineering support
- Vehicle-specific fitment requires verifying year and trim for the Mitsubishi Eclipse
- Some reviewers note thinner materials compared with older originals which may affect long-term durability
- Included crimp connectors may not fit thicker factory wires on some older models
Verdict A budget-friendly, complete replacement kit that restores blower function for compatible vehicles but requires careful fit verification for your Eclipse.
7. Dorman 973-025 Blower Motor Resistor
| Brand | Dorman |
|---|---|
| Material | resistor |
| Position | Front |
| Manufacturer Part Number | 973-025 |
This Dorman blower motor resistor is a drop-in replacement intended to restore all fan speeds when the original resistor has failed. It is typically installed behind the passenger dash or glovebox where the factory resistor mounts; installation requires basic hand tools and modest access but matches the factory mounting and connector layout for compatible cars. Notable features include an engineered fit meant to match the original part and validation testing to ensure safe operation. In practice it brings back stepped fan control when a vehicle is stuck on high or only one speed, and customers report it performs like a factory-quality replacement for models it fits. Limitations are that it only replaces the resistor assembly so it will not fix a failed blower motor, a bad fan control switch, or related wiring issues, and occasional defective units do occur and may require replacement. For owners who confirm vehicle fitment first, this is a practical, repair-focused solution that gets HVAC airflow control working again without modifying the system.
Best for: Balanced owners looking for a reliable, budget-friendly repair that restores HVAC fan control without custom work, prioritizing a practical factory-style replacement.
Less Ideal for: Drivers who prefer a full HVAC system overhaul, need to replace a failed blower motor, or want upgraded performance parts rather than a factory-style fix should consider other options.
- Direct replacement designed to match factory mounting and connector for compatible vehicles
- Restores multi-speed fan control when the resistor has failed
- Engineered and tested by a recognized aftermarket parts supplier
- Compact, simple part that is quick to replace with basic tools
- Does not address a faulty blower motor, fan switch, or wiring faults
- Rare cases of defective units have been reported requiring a replacement
Verdict A straightforward, factory-style replacement resistor that reliably restores fan-speed control on compatible vehicles when the blower motor itself is sound.
Choosing the Right Mitsubishi Eclipse Blower Motor Resistor: Key Factors to Consider
Fitment and Connector Compatibility
Proper fitment is essential because blower motor resistors usually mount in tight HVAC housing and use vehicle-specific connector pinouts. A plug that does not mate cleanly can cause intermittent contact, leading to fluctuating fan speeds or complete loss of function.
Check mounting tab locations, screw spacing, and the exact shape of the plastic housing to ensure the replacement installs without modification. Also verify the connector pin count and orientation against the vehicle harness to avoid splicing or adapter use, which can introduce failure points.
Electrical Resistance and Wattage Rating
The resistor must match the expected electrical resistance values to reproduce the factory fan speed steps and maintain safe current flow. Incorrect resistance can change the speed range or overload the circuit, affecting blower performance and potentially stressing the motor.
Wattage or power dissipation ratings indicate how well the component handles continuous heat under load. Choosing a resistor with adequate wattage headroom reduces the chance of overheating and extends service life.
Thermal Management and Materials
Blower motor resistors operate in a high-heat environment near the heater core and blower motor, so thermal design is a key reliability factor. Look for resistors with heat sinks, temperature-resistant housings, and ceramic or other heat-tolerant resistor elements to limit degradation over time.
Materials that resist heat cycling and thermal expansion reduce cracking and connection failures. Good thermal management also lowers the risk of heat-related wiring damage in the HVAC housing.
Connector and Terminal Durability
Terminals and connector pins are frequent failure points due to vibration, corrosion, and heat. Durable, plated terminals and snug-fitting connectors help maintain consistent electrical contact and reduce voltage drop across the resistor.
Insulation quality around the wiring and strain relief at the connector are important to prevent chafing and short circuits. Components that resist corrosion from humidity and road salts are preferable for long-term reliability.
Compatibility With Blower Motor Load
The resistor must be matched to the typical current draw of the blower motor. If the resistor is underspecified for the motor load, it may overheat or fail prematurely; if oversized inappropriately, it may alter speed characteristics.
Consider the blower motor condition and whether the motor draws higher current than stock due to wear. Selecting a resistor that accommodates realistic motor loads within its design limits helps prevent repeat issues.
Ease of Installation and Serviceability
A replacement that installs without cutting, splicing, or extensive disassembly reduces the chance of installation errors. Clear mounting points and accessible connectors shorten repair time and lower the risk of damage during installation.
Parts designed for straightforward removal and replacement also make future servicing easier. Availability of replacement connectors or terminal kits can be useful for repairs in older vehicles with brittle wiring.
FAQ
What are common symptoms of a failing blower motor resistor in a Mitsubishi Eclipse?
Common signs include loss of certain fan speed settings, the blower working only on the highest speed, or intermittent fan operation. The fan may also stop working entirely in some cases. These symptoms often vary with temperature and vibration, and may appear suddenly or progress over time.
Where is the blower motor resistor located on a Mitsubishi Eclipse?
On the Mitsubishi Eclipse, the resistor is typically mounted in the HVAC housing near the blower motor, often accessible from under the dash or through the glovebox area. The exact location can vary by model year but is usually adjacent to the blower assembly. Consult a vehicle-specific guide or service manual for the precise access procedure and removal steps.
Can I test the blower motor resistor before replacing it?
Yes. You can perform an HVAC blower resistor test using a multimeter to check for expected resistance values across the terminals and for continuity. Visual inspection for burned spots or melted housing can also reveal failures. If you find open circuits, wildly varying resistance, or visible heat damage, the resistor usually needs replacement.
Should I replace the resistor if the blower works only on one speed?
Often a single working speed indicates the resistor has failed, especially if the highest speed still operates since that speed may bypass the resistor. However, other issues such as switch faults or wiring problems can produce similar symptoms. Diagnose with a multimeter and check connectors before replacing the resistor to ensure you address the root cause.
How can I reduce the risk of future blower resistor failures?
Ensure secure, corrosion-free electrical connections and avoid exposing the HVAC area to excessive moisture. Use replacements with robust thermal design and good terminal plating to resist heat and corrosion. Regular inspection of the blower motor and housing can also help, since an overworking or dirty motor can increase load and heat on the resistor.
How We Chose the Best Mitsubishi Eclipse Blower Motor Resistor
We focused on parts that specifically fit the Mitsubishi Eclipse and meet stock electrical and mechanical specifications. Key evaluation criteria included connector and mounting compatibility, electrical resistance values and wattage ratings, thermal management and heat-sink design, corrosion-resistant terminals and wiring, and the use of quality components for long-term reliability. We prioritized parts with clear fitment documentation and durable construction that reduce the risk of premature failure when used in typical driving and climate conditions. We excluded universal or ambiguous parts that require modification, items without explicit fitment data for the Eclipse, and parts with inconsistent or missing electrical specifications. Our selection favored resistors that balance accurate electrical characteristics with robust thermal design and secure connectors, since those dimensions have the greatest impact on restoring consistent fan speeds and avoiding recurring HVAC faults.
Our full evaluation process is outlined in our review methodology.
Conclusion
When replacing a Mitsubishi Eclipse blower motor resistor, prioritize correct fitment and matching electrical characteristics so the replacement restores all fan speeds and handles the blower load without overheating. Pay attention to thermal management, connector quality, and ease of installation to reduce the chance of repeat failures. Balancing these factors helps you choose a durable replacement that returns reliable HVAC performance. If you are unsure about electrical testing or access, consult repair documentation or a technician to confirm fit and wiring before installing a new part.
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