Sale

Heating and Cooling› Oil and Fluid Coolers

Tru-Cool

Heavy Duty Transmission Oil Cooler Kit

$200.00 $192.20 Save $7.80

SKU: LNG-47391

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It helps maintain lower temperatures in your transmission and lubricant, extending the life of your vehicle. This cooler features a durable brazed aluminum construction and precise fin spacing for efficient airflow. Installation hardware is included.
Show original supplier description
The Tru-Cool Max Transmission Oil Cooler Kit, model LNG-47391 (also known as LPD47391), is engineered for heavy-duty applications, supporting vehicles up to 40,000 lbs Gross Vehicle Weight (GVW). This transmission cooler offers double the cooling capacity of most aftermarket coolers, providing advanced protection against overheating. Its advanced low-pressure drop design minimizes energy consumption and system pressure loss, thereby maximizing transmission efficiency and safeguarding vital components from excessive heat. This ensures a secure and stable fit for dependable, long-term operation. By maintaining optimal transmission temperatures, the Tru-Cool LNG-47391 prolongs the lifespan of your transmission, enhances fuel efficiency, and helps prevent costly repairs. With a BTU rating of 45,000, this cooler is an ideal solution for large trucks, trailers, and towing vehicles, ensuring they run cooler and more efficiently under demanding conditions. The cooler features 3/8" inverted flare fittings. It is backed by a lifetime warranty, offering peace of mind to the customer.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTru-Cool
Part NumberLNG-47391
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy