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Transmission Performance Oil Cooler LPD47391 Fits for Max Heavy Duty 40,000 GVW - aftermarket replacement part from Northline Parts

Tru-Cool LPD47391 Heavy-Duty Transmission Oil Cooler – 40,000 GVW

SKU: NLT2S00737
$116.39 In Stock
$116.39
Sale price  $116.39 Regular price 
Ships for free in 2–4 business days.
This auxiliary automatic transmission oil cooler is designed for compatible towing and heavy-duty vehicles using Tru-Cool reference #LPD47391. It is rated for applications up to the manufacturer’s stated 40,000 GVW class.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Automatic-transmission-equipped trucks or SUVs with adequate cooler mounting area and compatible lines
  • Tow vehicles needing an auxiliary transmission cooler within LPD47391 specifications

Important Fitment Note: Check physical cooler dimensions, line connections, fluid path, mounting airflow and vehicle-specific transmission cooling recommendations. GVW is a selection rating, not a guarantee of fit.

Product Overview

The external transmission cooler sheds heat from the fluid circulating through the automatic transmission.

Repeated towing or hot-weather driving can raise transmission fluid temperature and accelerate fluid wear; an appropriately sized auxiliary cooler can improve heat control.

Check physical cooler dimensions, line connections, fluid path, mounting airflow and vehicle-specific transmission cooling recommendations. GVW is a selection rating, not a guarantee of fit.

Key Features & Performance

  • Part & Application: Long Tru-Cool LPD47391 Heavy-Duty Automatic Transmission Oil Cooler — 40,000 GVW Low-Pressure-Drop Design. Automatic-transmission-equipped trucks or SUVs with adequate cooler mounting area and compatible lines
  • Part Identification: LPD47391, 47391
  • Package Contents: The item described in the product title; confirm the supplied pieces against the product photos.
  • Fitment Priority: Confirm original part, configuration, and mounting features before installation.

Specifications

  • Product: Long Tru-Cool LPD47391 Heavy-Duty Automatic Transmission Oil Cooler — 40,000 GVW Low-Pressure-Drop Design
  • Brand: Northline Parts aftermarket replacement or accessory (unless otherwise stated by the original listing)
  • Northline Parts SKU: NLT2S00737
  • Important Details: Low-pressure-drop heavy-duty transmission cooler; 40,000 GVW advertised class

Replaces / Cross-References

Reference identifiers associated with this listing:

  • LPD47391
  • 47391

Numbers marked as product references identify this part or its application. Alternate spelling or punctuation does not establish a separate verified interchange. Match the original assembly and required configuration before purchasing.

What Is Included

The item described in the product title; confirm the supplied pieces against the product photos.

Installation & Fitment Notes

Check physical cooler dimensions, line connections, fluid path, mounting airflow and vehicle-specific transmission cooling recommendations. GVW is a selection rating, not a guarantee of fit.

Follow the service procedure for the specific equipment or vehicle. Compare the replacement with the original part before installation; professional installation is recommended for steering, braking, suspension, electrical and drivetrain components.

Frequently Asked Questions

Is this an OEM part?

No. This listing is for an aftermarket replacement or accessory unless the product is specifically described as genuine. Manufacturer names and OE numbers are provided for fitment identification.

How do I know whether it will fit?

Check physical cooler dimensions, line connections, fluid path, mounting airflow and vehicle-specific transmission cooling recommendations. GVW is a selection rating, not a guarantee of fit.

When should this part be replaced?

Repeated towing or hot-weather driving can raise transmission fluid temperature and accelerate fluid wear; an appropriately sized auxiliary cooler can improve heat control.

What is included?

The item described in the product title; confirm the supplied pieces against the product photos.

Part Summary

Part: Long Tru-Cool LPD47391 Heavy-Duty Automatic Transmission Oil Cooler — 40,000 GVW Low-Pressure-Drop Design

Applications: Automatic-transmission-equipped trucks or SUVs with adequate cooler mounting area and compatible lines; Tow vehicles needing an auxiliary transmission cooler within LPD47391 specifications

Reference Numbers: LPD47391, 47391

Purpose: The external transmission cooler sheds heat from the fluid circulating through the automatic transmission.

Northline Parts SKU: NLT2S00737

Keywords: Long Tru-Cool LPD47391 Heavy-Duty Automatic Transmission Oil Cooler — 40,000 GVW Low-Pressure-Drop Design, NLT2S00737, Northline Parts, LPD47391, 47391, Automatic-transmission-equipped trucks or SUVs with adequate cooler mounting area and compatible lines, Tow vehicles needing an auxiliary transmission cooler within LPD47391 specifications.

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