The Dorman 973-426 HVAC blower motor resistor kit is a direct-fit replacement for select Chrysler, Dodge, and Jeep models, offering a resistor and harness pigtail, OEM-style connectors, and a rated temperature of 239.12°F. Key specs: 4.4/5 average rating, straightforward DIY install, check mounting clearance and connector fit. Questions: Will it restore all fan speeds? Often yes, if the resistor is the fault. Want compatibility details and install tips?
Key Takeaways
- Direct-fit replacement for select Chrysler, Dodge, Jeep models restoring full HVAC fan-speed functionality.
- Kit includes resistor module and harness pigtail; confirm factory connector and plug gender before buying.
- Handles up to 141 A and 259 V, with temperature rating ~239°F for durable thermal performance.
- Installation is straightforward for competent DIYers; test-fit, secure routing, and use dielectric grease.
- Backed by Dorman engineering, 4.4/5 average from ~1,992 reviewers, with Amazon 30-day returns and manufacturer warranty options.
Product Overview and Key Specs
The Dorman 973-426 HVAC Blower Motor Resistor Kit presents itself as a direct-fit replacement for select Chrysler, Dodge, and Jeep models, designed to restore full HVAC fan-speed functionality.
It targets readers seeking reliable product features and measurable value.
What does the kit include? A resistor and harness pigtail.
Key specs: 5.51 x 4.33 x 3.54 inches, 7.7 ounces, 141 A rating, 259 V, female metal contacts, plunger actuator, 239.12°F temp rating.
How reliable is it? Backed by Dorman engineers, designed to match OEM performance.
Consider dimensions, connector type, and warranty when deciding.
Compatibility and Fitment Details
Moving from the product’s specs and kit contents, compatibility and fitment determine whether the Dorman 973-426 will install cleanly and restore HVAC function on a specific vehicle.
The review notes the kit targets select Chrysler, Dodge, Jeep models; a fitment guide is essential, listing OEM cross-references, connector type, and dimensions (5.51 x 4.33 x 3.54 inches).
Vehicle compatibility checks include harness routing, mounting footprint, and plug gender.
Practical question-answer: Will it match the factory connector? Measure clearance and verify OEM part numbers. Consider current rating and temperature spec when confirming suitability.
- Check OEM part numbers
- Verify connector type
- Measure mounting space
- Confirm harness routing
- Review fitment guide
Installation Experience and Included Parts
Although installation can be straightforward for a competent DIYer, readers should expect a few measured checks before fitting the Dorman 973-426 kit: it includes the resistor module and a harness pigtail (essential for connector replacement), and measures 5.51 x 4.33 x 3.54 inches while weighing 7.7 ounces, so installers must verify mounting clearance, screw hole alignment, and harness routing; specific steps include confirming OEM cross-reference numbers, matching the female automotive electrical connector, and ensuring the pigtail reaches the blower motor without excessive tension or routing through sharp edges.
| Item | Note |
|---|---|
| Contents | Resistor, pigtail |
| Size | 5.51×4.33×3.54 in |
| Weight | 7.7 oz |
| Connector | Female automotive |
| Tip | Confirm OEM cross-ref |
Installation tips: test fit, use dielectric grease, secure strain relief. Troubleshooting advice: check continuity, inspect connector pins, verify blower grounds.
Performance, Durability, and Temperature Ratings
Performance of the Dorman 973-426 centers on reliable fan-speed control and heat tolerance under typical HVAC loads, delivering expected blower function across compatible Chrysler, Dodge, and Jeep models.
The review cites measured performance metrics: consistent voltage handling to 259 V, motor current rating implications up to 141 A, and temperature ratings listed at 239.12°F.
Durability testing by engineers emphasizes material choice, metal contacts, and connector integrity.
How long will it last? Expect OEM-like service life under normal use, with practical notes on harness replacement and proper mounting to avoid heat soak.
- 259 V operating voltage, 141 A current rating
- Temperature limit: 239.12°F (lower and upper)
- Metal contact, female connector durability
- Includes resistor and harness pigtail for reliable fit
- Durability testing focuses on thermal cycling and contact wear
Warranty, Returns, and Customer Feedback
When considering purchase protection for the Dorman 973-426 HVAC Blower Motor Resistor Kit, buyers can rely on both retailer and manufacturer safeguards: Amazon’s 30-day return guarantee covers standard returns, and a manufacturer’s warranty is available upon request from Dorman customer service. The warranty coverage complements a 4.4/5 customer satisfaction rating from 1,992 reviewers. Returns process is straightforward; ask seller or Dorman for instructions, retain packaging, note the 30-day window.
| Aspect | Detail | Action |
|---|---|---|
| Return Window | 30 days | Initiate via Amazon |
| Warranty Type | Manufacturer | Contact Dorman |
| Rating | 4.4/5 | Check reviews |
Frequently Asked Questions
Does This Kit Include Heat-Resistant Mounting Hardware?
No, the kit does not explicitly include heat-resistant mounting hardware. The description emphasizes heat resistance benefits for components and overall mounting hardware quality is implied, but specific heat-rated fasteners are not listed among included parts.
Can the Resistor Cause Electrical Interference With Other Systems?
Unlikely to cause widespread issues; resistor functionality generally limits interference to HVAC circuits. However, poor grounding or failure can create noise affecting sensitive modules, so electrical diagnostics are recommended to isolate faults and confirm circuit integrity.
Is Professional Installation Recommended for Newer Models?
Yes; professional installation is recommended for newer models due to complex HVAC systems, integrated electronics, and tight connector tolerances. Trained technicians reduce risk of damage, guarantee correct wiring, and maintain vehicle warranty and system calibration.
Are Replacement Harnesses Sold Separately if Damaged?
Sometimes sold separately, replacement harnesses are discreetly available; customers may find replacement options through suppliers or dealers. Compatibility depends on wiring compatibility with the vehicle and resistor kit, so verification before purchase is advised.
Does It Affect Cabin Air Fan Speed Sensing?
No, it does not inherently affect cabin air fan speed sensing; the resistor kit restores resistive steps for fan speed control, so fan speed and cabin air flow respond as original when installed correctly with intact harness and connectors.
