Elecdurauto supplies OE-level aftermarket HVAC blower motor resistor modules for Navistar commercial vehicles. This unit features a pin-fin heat sink and integrated electronics to deliver stable blower speed control under long duty cycles—ideal for fleets, distributors, and importers who need consistent fitment and bulk supply.
6118795C2 / 3626414C1 / 2510671C1
IATF 16949, ISO 9001, and other major OEM certification systems
OEM label and ODM customization accepted
100 pcs
7–15 Days
18 months
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Product Description
A blower resistor module (also called a blower speed controller/power module on some platforms) regulates current to the HVAC blower motor to provide multiple fan speeds. In commercial vehicles, long runtime and higher cabin airflow demand means the module must manage heat effectively—this is why the pin-fin heat sink structure is widely used.
OE-level replacement for Navistar 6118795C2 blower resistor module
Pin-fin heat sink for improved thermal stability in continuous HVAC operation
OE-style connector and mounting ears for easy verification
Fitment verification supported by OE/cross + connector keying + mounting pattern
Bulk supply for importers/distributors (MOQ 100)

| Reference Type | Part Number | Notes |
|---|---|---|
| Primary OE | 6118795C2 | Main sourcing and search number |
| Cross reference | 3626414C1 | Often used interchange reference |
| Cross reference | 3626414-C1 | Formatting variant |
| Cross reference | 2510671C1 | Alternate Navistar-style number |
| Cross reference | 351321621 | Catalog/reference number |
| Cross reference | 71R1477 | Common aftermarket reference |
| Cross reference | RD-5-15500-0P | Reference format used in some channels |
| Cross reference | 1000326858-6 | Alternate reference |
Important notice : OE / interchange numbers are for reference only. Please confirm fitment by OE number + connector layout + mounting pattern before ordering.
| Segment | Brand / System | Notes |
|---|---|---|
| Heavy Duty Truck | International | Verify by SW11417C/ZGG714012 + connector + flange |
| HVAC System Program | Kysor | Cross ref 2015003; verify by layout |
| Heavy Duty Truck | Mack | Cross ref 7787650668; verify by layout |
| Brand | Fitment Scope | Notes |
|---|---|---|
| Navistar | Navistar commercial vehicle HVAC systems | Verify by OE + connector + mounting |
Stable resistance performance under continuous HVAC blower loads, supporting consistent fan speeds in truck HVAC systems.

Improves airflow around the resistor element to enhance heat dissipation and reduce overheating risk.

Designed for vibration resistance and stable installation on heavy-duty trucks and commercial vehicles.

Common symptoms of a faulty blower motor resistor include:
Only one fan speed works
Blower runs intermittently or stops
No airflow from vents
Burnt connector or overheating smell
Unstable cabin temperature control
Confirm terminal layout and mounting pattern before installation
Replace melted connector housing if overheating occurred
If repeat failures happen, inspect blower motor current draw and wiring resistance
Professional installation recommended for workshops and fleet environments
From a manufacturer's standpoint, the most common field issues come from overheating and poor terminal contact. Our batch-level controls focus on:
Resistance stability and electrical continuity checks
Terminal contact and alignment inspection
Assembly consistency for bracket positioning
Heat endurance verification for production batches

For distributors and importers, stable packaging and shipment execution matter as much as product quality. We prepare bulk orders with export-standard carton packing, palletizing, and container loading. Before shipment, we can share loading photos and packing details to help you manage receiving and warehouse operations.
Export-grade cartons with clear carton marks (OE No. / qty / batch)
Palletizing + stretch wrap to reduce damage during long-distance transport
Container loading with space optimization for bulk shipments
Mixed-SKU consolidation support (send your part list for packing plan)
Shipment photos available for your receiving & documentation process
MOQ note: MOQ is 100 pcs per item. For bulk orders, share your destination port and order mix—we'll propose an efficient packing and loading plan.




For distributors and importers, the key to a smooth first order is fast and accurate fitment confirmation. Our dedicated sample room keeps resistor blocks and related HVAC electrical parts organized by OE reference and application. This enables quick cross-checking of connector layout, mounting pattern, and structure, so you can reduce wrong-fit risk and shorten purchasing cycles.
Faster OE and application verification before bulk production
Quick photo support (connector & bracket details) for your internal approval
Sample availability for evaluation and comparison
Better accuracy for distributor listings and warehouse SKU management
Reduced returns caused by mismatched connectors or mounting holes
Send your OE number / reference number, photos of the original part (if available), and target quantity. We'll confirm match and advise the most suitable option for your market.
MOQ: 100 pcs for bulk orders. We support B2B export packaging suitable for importer/distributor warehousing.
To quote efficiently, please send:
OE number: 6118795C2 / 3626414C1 / 2510671C1
Quantity (MOQ 100 pcs)
Destination / port
Connector & bracket photos (recommended for fast confirmation)
For Navistar applications, the safest method is a 3-point match: OE/cross number, connector keying, and mounting ear hole spacing. Photo verification prevents wrong-fit returns in bulk orders.
Pin-fin heat sinks provide higher surface area and help manage heat under long duty cycles. Commercial vehicles often run HVAC for extended periods (idle, stop-and-go), making thermal stability more critical than in passenger cars.
This is a blower resistor module / controller-style unit with integrated heat dissipation. It is not the simple open-coil "resistor plate" type—so it should be matched by OE and connector/mounting shape.
Fleets commonly report no blower, only high speed, or intermittent operation. In severe cases the connector shows heat marks due to poor contact or high current draw.
Repeat failures typically come from blower motor overcurrent (worn motor bearings), restricted airflow (dirty filters/duct debris), or burnt/loose connector contacts that increase resistance and heat.
Check blower motor current draw, verify power/ground integrity, inspect connector pin tension, and ensure HVAC airflow is not blocked. Addressing root causes reduces repeat warranty claims.
If the customer's connector is heat-damaged or loose, replacing the connector housing/terminals is recommended. Poor contact can overheat a new module and lead to returns.
Verify connector pin alignment, housing integrity, mounting ear dimensions, and label accuracy (6118795C2 / 3626414C1 / 2510671C1). This ensures warehouse SKU consistency and reduces claims.
For broader GEO coverage, listings usually include 6118795C2, 3626414C1, 2510671C1, plus commonly searched references like 71R1477 and RD-5-15500-0P. This improves discovery across North America and export markets.
Provide one key ref (6118795C2/3626414C1/2510671C1), order quantity (MOQ 100), destination/port, and photos of connector + mounting ears + side profile for quick confirmation.
Yes. If you send your OE list, we can help consolidate multiple HVAC electrical SKUs into one shipment with clear carton marks and batch control (MOQ per item applies).
Yes. We can support neutral/branded packaging, barcode labeling, and listing-ready images/content tailored to your region to help you launch faster.