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If your Mitsubishi Lancer has uneven fan speeds, weak airflow, or intermittent blower operation, replacing the blower motor resistor can often fix the issue. Choosing the right resistor matters because fitment, heat tolerance, and connector compatibility affect reliability and how easily you can install it. This guide covers the top shortlisted blower motor resistors for the Mitsubishi Lancer and explains the criteria we used to select them. Read on to understand what matters when choosing a replacement and what to check before you buy.
Looking for other parts? See all Mitsubishi Lancer 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 | Dorman 973-003 HVAC Blower Motor Resistor |  |
| Best Quality Built to a higher standard if you want something more solid | Motorcraft YH-1715 Blower Motor Resistor |  |
| Best Budget The cheapest option that still gets the job done reliably | IFATRUNK HVAC Blower Motor Resistor (973-020) |  |
| Most Sold A high-volume bestseller chosen again and again | Marsflex Blower Motor Resistor (manual A/C) |  |
| Best Value for Money The sweet spot between price and what you get | Dorman 973-005 Blower Motor Resistor (replacement) |  |
| Best Overall The best all-around choice for most situations | Marsflex Blower Motor Resistor (APAC05016) |  |
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 supplies the stepped voltage drops that control multiple blower fan speeds in a vehicle HVAC system. Designed and tested to GM factory standards, it installs as a direct replacement and is typically used when a car loses low and intermediate fan speeds and the blower only runs on high. The machined housing and factory part number indicate a factory-quality fit and function, so installation is usually straightforward for a technician familiar with HVAC blower assemblies. Practical benefits include restoring full fan speed control and avoiding unnecessary replacement of the blower motor or control module when the resistor is the actual fault. Limitations are that this is a vehicle-specific replacement part and will only solve problems caused by a failed resistor; if the blower motor, wiring, or HVAC control module are faulty, additional parts or diagnosis will be required. Also the listing does not include fitment notes for every model year of the Mitsubishi Lancer so confirm compatibility before ordering.
Best for: A reliability-focused buyer who prefers factory-quality replacement parts to maintain dependable HVAC performance in their Mitsubishi Lancer and minimize future failures.
Less Ideal for: Drivers seeking a universal or multi-vehicle aftermarket upgrade or those who need a complete HVAC repair kit including blower motor and control module should look elsewhere.
- Factory-quality design intended to match original blower resistor function
- Restores multiple stepped fan speeds so HVAC ventilation works across settings
- Machined exterior suggests durable construction and reliable electrical contacts
- Widely used OEM part with many user reports of straightforward fit and function
- No vehicle-specific fitment details in the listing for Mitsubishi Lancer model years
- Replaces only the resistor so further HVAC diagnosis may be needed if problem persists
Verdict Buy this if you want a factory-quality blower resistor that reliably restores fan speed control, but confirm fitment for your Mitsubishi Lancer before purchasing.
2. Dorman 973-003 HVAC Blower Motor Resistor
| Brand | Dorman |
|---|---|
| Model | 973-003 |
| Manufacturer Part Number | 973-003 |
| OEM Part Number | 15-8788; 20264; 3A1040; BMR043; DR776; GM0614968; RU61; RU61T; RU866; 15024815; 15039098; 15958233 |
This Dorman blower motor resistor replaces a failed resistor to restore full fan speed control and proper HVAC function. It is intended as a direct replacement that matches the fit and operation of the factory part on supported vehicles. Typical use is swapping the failed resistor behind the glove box or on the heater box to regain low, medium and high blower speeds when the fan has been stuck on one speed or not working. Notable features include factory-style electrical connectors and tested performance backed by Dorman inspection. In practice the unit fixes common blower speed failures and is straightforward for a DIYer with basic hand tools, though accessing the resistor can be cramped and removal of panels or the glove box is often required. The part is a focused replacement component so it will not address underlying excessive current draw from a failing blower motor and may need to be paired with a motor replacement if the resistor burns out repeatedly.
Best for: Convenience-driven owners who want a straightforward part to quickly restore HVAC fan speeds without a lengthy repair process; ideal for someone who prefers a ready-to-install, reliable replacement.
Less Ideal for: Drivers planning a long-term overhaul or who suspect the blower motor itself is failing should consider replacing the motor first or having a technician diagnose electrical draw before buying this resistor.
- Direct replacement design that restores multi-speed blower operation.
- Factory-style connector and tested to match expected electrical performance.
- Compact, simple unit that is quick to swap for routine HVAC repairs.
- Backed by engineering inspection and widely used in older GM-derived HVAC systems.
- Will not fix a failing blower motor that draws excessive current and may fail again if underlying motor issue remains.
- Installation often requires removing the glove box or working in a confined space which can be fiddly.
Verdict A simple, tested direct-replacement resistor that quickly restores blower speed control when the HVAC resistor is the cause of the problem.
3. Motorcraft YH-1715 Blower Motor Resistor
| Current Rating | 15 Amps |
|---|---|
| Circuit Type | 1-way |
| Mounting Type | Panel Mount |
| Vehicle Service Type | Ford |
This Motorcraft blower motor resistor is intended to replace a failed resistor that causes loss of low and mid fan speeds. In practice you install it into the heater box harness where it provides the different resistance steps that let the blower run at multiple speeds instead of only high. The part follows factory-style construction and carries Motorcraft branding, so it is aimed at matching factory fit and function. Buyers report straightforward installs when access is reasonable, and the resistor restores all fan settings and normal A/C performance. Be aware there are different resistor styles used across vehicles, so fitment for a specific Mitsubishi Lancer must be confirmed before buying. Some users have seen alignment hole or fitment differences and a small number report early failures, which suggests checking the part visually before final installation and keeping replacement options handy if needed.
Best for: Performance-oriented owners who prioritize restoring precise climate control behavior and OEM-like operation on their Mitsubishi Lancer and expect a direct replacement that returns correct fan speed control.
Less Ideal for: Buyers who want a universal or adjustable aftermarket resistor or who cannot confirm exact Lancer fitment should look for a resistor specified explicitly for their model year and trim.
- Factory-style replacement designed to match original fit and function for compatible vehicles
- Restores full range of blower fan speeds when the resistor is the root cause
- Simple, commonly documented installation that many owners can do with basic hand tools
- Multiple resistor styles exist so wrong style may not fit without verification
- Some buyers reported quality or fitment issues on arrival and rare early failures
Verdict A factory-style blower motor resistor that can return full fan-speed control when matched correctly to the Lancer, but verify the exact resistor style before purchase.
4. IFATRUNK HVAC Blower Motor Resistor (973-020)
| Manufacturer | IFATRUNK |
|---|---|
| Model | 973-020 |
| Manufacturer Part Number | FA10001 |
| Applicable Controls | Manual AC controls |
This IFATRUNK blower motor resistor is a straightforward replacement part that restores multi-speed control to an HVAC blower when a failed resistor leaves the fan stuck or inoperative. It installs in the blower housing and is intended for manual climate-control systems. The product lists compatibility with older Dodge Ram and Jeep models and claims to meet or exceed factory-quality performance using standard resistor elements. For basic repairs the unit is easy to fit and can be swapped using simple hand tools, which keeps repair time and cost low. Reported user experience ranges from quick, trouble-free fixes to some early failures, so longevity may vary compared with higher-end factory replacements. A few users noted an initial odor on first power-up that dissipated. Expect a no-frills, inexpensive replacement that gets the blower working again but may not match the durability or testing standards of premium parts.
Best for: Budget-conscious buyers who prioritize a low-cost, do-it-yourself repair to get a blower working again rather than long-term durability.
Less Ideal for: Buyers seeking a long-term professional-grade replacement or who require parts validated specifically for Mitsubishi Lancer fitment should consider higher-grade or OEM options.
- Low-cost replacement that can restore full fan-speed control
- Simple install that requires only basic hand tools
- Covers known factory part numbers so it fits standard manual HVAC resistor locations
- Mixed longevity reports compared with higher-end replacements
- Some users reported a temporary odor when first powered on
Verdict A very affordable, easy-to-install resistor for quick blower repairs, but expect variable durability compared with premium factory-quality replacements.
5. Marsflex Blower Motor Resistor (manual A/C)
| Speed | 3250 RPM |
|---|---|
| Voltage | 12 Volts |
| Horsepower | 228 Watts |
| Material | Iron |
This Marsflex blower motor resistor is a direct-replacement style module designed to restore full fan speed control in vehicles with manual air-conditioning. It installs in the blower housing and regulates current to the blower motor so low, medium, and high fan settings work as intended. Typical use is replacing a failed resistor when the blower only runs on one speed or certain speeds stop working. The listing emphasizes factory-style fit and testing to match original performance, and the part includes the resistor module and the wiring connector interface for a plug-in swap. Practical benefits are straightforward: low cost, quick DIY installation in a glove-box or under-dash access area, and fast restoration of usable climate control without replacing the blower motor. Important limitations are variable longevity reported by users and the need to seat the resistor fully so the blower airflow cools it; poor installation or inadequate airflow can cause overheating and premature failure. Some testers also reported occasional connector heat and intermittent contacts, so careful inspection of the plug is advised after install.
Best for: Risk-averse mainstream buyers seeking an affordable, factory-style repair to return full fan control without replacing the blower motor, and who prefer a quick DIY fix or inexpensive shop repair.
Less Ideal for: Owners who want a long-term professional-grade upgrade or who avoid any risk of repeated parts replacement should consider higher-end aftermarket or dealer-sourced options.
- Designed as a direct replacement to restore all blower speeds when the original resistor fails
- Low-cost and straightforward to install for DIY repairs
- Includes matching connector interface for a plug-in swap without splicing
- Meets or exceeds stated factory-style design and performance according to product info
- Some users report short service life or overheating if not fully seated and cooled by blower airflow
- A few reports of connector plastic showing heat damage or intermittent contact
Verdict A budget-friendly, factory-style resistor that gets fan speeds working again quickly but requires correct installation and airflow to avoid overheating.
6. Dorman 973-005 Blower Motor Resistor (replacement)
| Brand | Dorman |
|---|---|
| Model | 973-005 |
| Manufacturer Part Number | 973-005 |
| OEM Part Number | 15-71991; 20267; 3A1034; DR773; RU1027; RU344; RU344T; 15094285; 15652873 |
This Dorman blower motor resistor is a straightforward replacement part that restores the different fan speeds when a blower resistor has failed. It is used by removing the HVAC access panel, swapping the old resistor for this unit, and reconnecting the factory wiring to re-enable low and mid fan settings. The product is engineered and tested to match the original function and is supported by Dorman's aftermarket experience. Practical benefits include simple install for anyone comfortable with basic vehicle disassembly, consistent restoration of all fan steps when the resistor is the root cause, and broad compatibility across older GM platforms. Limitations are that it only replaces the resistor assembly so it will not fix issues caused by a failing blower motor, wiring harness, or control switch. Fitment must be confirmed for your specific vehicle trim because the part covers certain models and years; incorrect selection wastes time and may require returns. Customers should also be prepared for some vehicles to need access work under the dash to reach the module.
Best for: Practical optimizers who want a budget-conscious, repair-oriented fix to get HVAC fan speeds working again without replacing expensive components.
Less Ideal for: Drivers seeking a comprehensive HVAC overhaul or those who prefer buying full OEM assemblies; also not for users unwilling to do basic dash access work or verify trim-specific fitment.
- Direct replacement design intended to match factory fit and function
- Restores full range of blower fan speeds when the resistor is the failure point
- Engineered and tested by an established aftermarket supplier
- Simple installation for DIYers with basic dash access tools
- Only addresses resistor failures and will not fix a damaged blower motor or control switch
- Requires confirming exact fitment for vehicle trim before purchase
Verdict A cost-effective, tested replacement resistor for restoring blower fan speeds when the resistor itself is the problem.
7. Marsflex Blower Motor Resistor (APAC05016)
| Speed | 3250 RPM |
|---|---|
| Voltage | 12 Volts |
| Horsepower | 228 Watts |
This Marsflex blower motor resistor is a direct-replacement resistor module intended to restore fan speed control in vehicles with manual climate control. It installs in the blower motor circuit and changes the current allowed to the fan motor so the dash fan speeds respond correctly. The unit ships with a harness and follows the same pin/hole layout used by many factory-style resistors, which makes it a straightforward plug-and-play swap when the resistor matches the vehicle connector. Practical benefits include a claimed factory-level design, basic metal construction for durability, and a one-year warranty for short-term peace of mind. Limitations are that the product is specific to certain resistor shapes and pin counts, so buyers must confirm connector and mounting compatibility before ordering; it is not a universal resistor and will not work if the dash control is electronic rather than manual. Also the listing references multiple OE part numbers, so correct fit requires checking the exact resistor variant for the vehicle.
Best for: Balanced, practical buyers who want a straightforward, factory-style replacement to restore blower fan function without costly shop diagnostics or complex controllers.
Less Ideal for: Those who prefer multi-vehicle universal parts, or owners whose vehicles use electronic climate control systems instead of manual resistor-based fan control.
- Designed as a direct replacement for factory-style blower resistors for manual AC systems
- Includes a wiring harness for plug-and-play installation when the connector matches
- Metal construction and claimed testing for durability and heat resistance
- Supports restoring full fan speed control when the original resistor has failed
- Fitment depends on matching pin count and mounting pattern so it is not universally compatible
- Not suitable for vehicles with electronic climate control modules that use a different speed control method
Verdict A practical, factory-style replacement for manual AC blower speed problems provided you confirm the resistor's connector and mounting match your vehicle.
Choosing the Right Mitsubishi Lancer Blower Motor Resistor: Key Factors to Consider
Fitment and Connector Compatibility
Exact fitment to the Mitsubishi Lancer mounting points and matching connector types are essential. A resistor that does not align with the factory bracket or uses a different plug design can require adapter harnesses or splicing, increasing installation time and potential failure points.
Confirming the pin count, terminal layout, and plug shape reduces the risk of electrical mismatches. Proper mechanical fit also ensures the resistor receives adequate airflow for cooling and stays securely mounted during vehicle vibration.
Thermal Durability and Heat Dissipation
Resistors in HVAC systems run hot during operation, so materials and design must tolerate repeated thermal cycling. Look for units with heat-resistant substrates, robust resistive elements, and vents or housings that promote airflow to shed heat efficiently.
Better heat dissipation lowers the chance of premature element burnout or melted housings. Durable finishes on terminals and corrosion-resistant coatings also help maintain electrical integrity in humid or salty environments.
Electrical Specifications and Resistance Values
Matching the correct resistance range and rated current is important for stable fan speed control. A resistor with incorrect resistance can result in limited speed steps, excessive current draw, or uneven motor performance.
Choose a unit that specifies its resistance values and current rating so you can verify compatibility with the Lancer's blower motor and control circuitry. Clear electrical specs also help when diagnosing related HVAC issues.
Build Quality and Materials
Robust construction translates to longer service life. Inspectors should consider housings made from heat-stable plastics or metals, plated terminals to resist corrosion, and secure fastening points that will not crack under torque.
Components that resist moisture ingress and include sealed connections reduce the risk of shorts and intermittent failures. Overall build quality affects both reliability and how the part tolerates real-world under-dash conditions.
Ease of Installation and Serviceability
A resistor that is straightforward to install minimizes labor time and the potential for installation errors. Features that help include clearly labeled connectors, included mounting hardware, and a form that slides into original brackets without modification.
Serviceability matters if you plan to replace it yourself: accessible fasteners, guidance on connector release tabs, and a design that allows visual inspection of terminals can make future troubleshooting easier.
Warranty and Technical Documentation
A reasonable warranty and clear technical documentation provide assurance and support if issues arise. Warranty coverage indicates the manufacturer stands behind thermal and electrical performance.
Technical sheets that list resistance values, current ratings, and fitment notes help confirm the part matches the Mitsubishi Lancer application. Documentation also assists technicians during diagnosis and future repairs.
FAQ
What are common blower resistor symptoms in a Mitsubishi Lancer?
Common symptoms often include loss of some fan speeds while others still work, a blower that only runs at full speed, or intermittent operation where the fan stops and starts. You may also notice unusual fan noise or decreased airflow at higher speed settings.
How do I locate the blower motor resistor in a Mitsubishi Lancer?
The blower motor resistor is usually mounted near the blower motor assembly behind the glove box or under the dash on the passenger side. It is typically secured with a few screws and connected to the HVAC wiring harness via a multi-pin plug.
Can I test the blower motor resistor without removing it?
You can often perform a basic HVAC blower resistor test with a multimeter at the wiring harness to check for expected resistance values or voltage drops across terminals. For comprehensive testing it may be easier to disconnect and test the resistor directly to isolate whether the issue is the resistor or the control circuit.
Is replacing the blower motor resistor difficult for a DIYer?
Replacement is usually straightforward for someone comfortable with basic hand tools and vehicle electrical connectors. Accessibility under the dash and removal of a few screws are common tasks, but confirm connector release methods before pulling to avoid damaging tabs.
What causes a blower motor resistor to fail?
Failures often result from prolonged heat exposure, corrosion of terminals, vibration fatigue, or excessive current draw from a failing blower motor. Moisture intrusion and poor electrical contacts can also accelerate wear and intermittent operation.
Will replacing the blower motor resistor fix all HVAC blower problems?
Replacing the resistor often resolves speed control issues when the resistor is the faulty component, but it will not fix problems caused by a failing blower motor, blown fuses, or faulty control switches. If symptoms persist after replacement, further electrical diagnosis is usually required.
How We Chose the Best Mitsubishi Lancer Blower Motor Resistor
We selected parts based on fitment accuracy, thermal performance, connector and plug compatibility, and long-term reliability under repeated heat cycles. For this vehicle-specific list we prioritized resistors designed to match the Mitsubishi Lancer HVAC harness and mounting points, along with materials that resist corrosion and heat degradation. We also evaluated electrical stability through rated resistance values and the quality of terminals and seals, plus ease of installation for both DIYers and technicians. Products that required major wiring changes or lacked clear fitment information were excluded. We avoided items without clear specifications for temperature rating, terminal plating, or harness compatibility. The final picks balance precise fit, durable construction, and straightforward installation for dependable fan control.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a replacement for a Mitsubishi Lancer blower motor resistor, prioritize correct fitment, thermal durability, and clear electrical specifications. These factors most directly affect performance, installation ease, and long-term reliability. Balance build quality and ease of installation against the level of warranty and documentation provided. If you verify connector compatibility and resistance ratings before purchase, you will reduce installation surprises and improve the chance of a lasting repair.
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