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Navistar HVAC Blower Motor Resistor Module 6118795C2 / 3626414C1 – Pin-Fin Heat Sink Design

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

Availability:
Quantity:
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Product Description

Heavy Duty Blower Motor Resistor Overview

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)

Heavy-duty blower resistor location diagram for distributors



OEM Cross Reference - Navistar 6118795C2

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.


Vehicle Fitment - Navistar HVAC Applications (Verification Recommended)

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



Technical Specifications - Airflow-Cooled Duct Insert Resistor Card

Brand Fitment Scope Notes
Navistar Navistar commercial vehicle HVAC systems Verify by OE + connector + mounting



Wire-Wound HVAC Resistor Block Design and Features

High-power wire-wound ceramic core

Stable resistance performance under continuous HVAC blower loads, supporting consistent fan speeds in truck HVAC systems.

High-power ceramic resistor core close-up for manufacturers


Open-frame cooling structure

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

Open-frame cooling airflow path image for wholesalers


Reinforced metal bracket

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

Reinforced mounting bracket holes close-up for distributors



Blower Motor Resistor Failure Symptoms and Diagnosis for Fleet Maintenance

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



HVAC Resistor Block Installation Notes and Connector Check

  • 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



Blower Motor Resistor Quality Testing and Manufacturing Standard

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

ISO 9001, ISO 14001, ISO 45001, IATF 16949 certified manufacturer for OEM and aftermarket supply



Export Packing & Container Loading for Bulk Orders

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.


What you can expect

  • 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.


Palletized cartons ready for export shipment

Container loading for bulk orders

Warehouse staging & outbound inspection

Stretch-wrapped pallets for long-distance transport



Sample Room & Fast Fitment Verification

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.


What this means for your sourcing team

  • 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


How to request a sample or verification

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.


Organized sample library for fast OE matching
SKU-ready sorting to support distributor operations
Samples available for evaluation before bulk orders



Blower Motor Resistor MOQ 100 and Packaging for Bulk Orders

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)



FAQ – Navistar Blower Resistor Module 6118795C2 / 3626414C1

1. How do buyers confirm the correct 6118795C2 blower resistor module?

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.


2. Why does this module use a pin-fin heat sink instead of an open-coil resistor plate?

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.


3. Is this part a resistor pack or an electronic blower speed controller?

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.


4. What are the most common failure symptoms fleets report for 6118795C2-type modules?

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.


5. What causes repeated failures after replacement in commercial vehicles?

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.


6. What should workshops check before blaming the module again?

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.


7. Do distributors need to replace the harness connector when selling this module?

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.


8. What incoming QC checks are recommended for distributors receiving bulk shipments?

Verify connector pin alignment, housing integrity, mounting ear dimensions, and label accuracy (6118795C2 / 3626414C1 / 2510671C1). This ensures warehouse SKU consistency and reduces claims.


9. Which cross numbers should be included for better SEO coverage in different markets?

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.


10. What information is needed for the fastest quotation and lead-time confirmation?

Provide one key ref (6118795C2/3626414C1/2510671C1), order quantity (MOQ 100), destination/port, and photos of connector + mounting ears + side profile for quick confirmation.


11. Can you support mixed-SKU HVAC programs for Navistar distributors?

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).


12. Do you offer private label packaging and listing materials for resellers?

Yes. We can support neutral/branded packaging, barcode labeling, and listing-ready images/content tailored to your region to help you launch faster.

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