---
product_id: 472519401
title: "Low Pressure Drop Transmission Oil Cooler LPD47391 4739 40,000 GVW with Mounting Hardware (Black)"
brand: "gagsu"
price: "€ 247.22"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gagsu"
url: https://www.desertcart.fi/products/472519401-low-pressure-drop-transmission-oil-cooler-lpd47391-4739-40-000
store_origin: FI
region: Finland
---

# Low pressure drop tech Complete mounting hardware Handles 40,000 lbs GVW Low Pressure Drop Transmission Oil Cooler LPD47391 4739 40,000 GVW with Mounting Hardware (Black)

**Brand:** gagsu
**Price:** € 247.22
**Availability:** ✅ In Stock

## Summary

> ❄️ Cool your ride, crush the heat, and tow like a pro!

## Quick Answers

- **What is this?** Low Pressure Drop Transmission Oil Cooler LPD47391 4739 40,000 GVW with Mounting Hardware (Black) by gagsu
- **How much does it cost?** € 247.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/472519401-low-pressure-drop-transmission-oil-cooler-lpd47391-4739-40-000)

## Best For

- gagsu enthusiasts

## Why This Product

- Trusted gagsu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Smart Flow:** Advanced low-pressure drop design minimizes energy loss while maximizing cooling efficiency.
- • **Worry-Free Warranty:** Backed by a lifelong warranty and dedicated after-sales support for total peace of mind.
- • **Extend Transmission Life:** Keeps your transmission in the optimal temp zone to reduce wear and costly repairs.
- • **Heavy-Duty Cooling Power:** Engineered for vehicles up to 40,000 lbs GVW—built to conquer the toughest hauls.
- • **Plug & Play Installation:** Includes premium mounting hardware for a hassle-free, rock-solid setup every time.

## Overview

The Gagsu LPD47391 Transmission Oil Cooler is a heavy-duty cooling solution designed for vehicles with up to 40,000 lbs GVW. Featuring advanced low-pressure drop technology, it ensures efficient oil flow and superior heat dissipation to extend transmission life. The kit includes all necessary mounting hardware for straightforward installation and is backed by a lifelong warranty and responsive customer support, making it an essential upgrade for professional-grade towing and heavy-duty applications.

## Description

OEM NUMBER: LPD47391 FEATURES: 1 - This is the ultimate cooler for heavy towing and is a must for heavy duty applications, including racing. 2 - If you want to extend the life of your transmission, this is very cheap insurance. 3 - Advanced cooling protection for car, van, light truck, R.V. and towing applications.

Review: Great cooler but crappy hose. Would recommend getting a stainless steel braided hose and fittings to make it more reliable. I blew the hose after one day. The fittings held but the actual hose failed.
Review: This cooler dropped the transmission temps down on my wife's 2011 GMC Yukon XL Denali to 140-150 degrees steady in the summer heat. Installation required a little creativity. Watch some of the videos online for installing a 40k transmission cooler and adjust as you see fit. I did try to install this cooler with the original hard lines, but could not bend them without feeling like I was about to kink the line and reduce flow, so I wound up installing the cooler with hoses that I slid over the original hard lines. I did heed the warning of the other reviews and not use the included rubber hose and bought some elsewhere. In further research I saw people recommending to install the fittings facing up, however I have not seen any evidence that this is absolutely necessary, but may do so one day.

## Features

- [Application and Compatibility] - The LPD47391 40k Transmission Oil Cooler Kit is specifically designed for heavy-duty vehicles. It is capable of handling a maximum gross vehicle weight (GVW) of 40,000 pounds, making it suitable for various types of large commercial trucks, trailers, and towing vehicles.
- [Low Pressure Drop Design] - This cooling kit incorporates advanced low-pressure drop technology, ensuring minimal pressure loss as the transmission oil flows through the cooler. This effectively reduces energy consumption and system pressure, while enhancing the cooling efficiency of the transmission.
- [Includes Mounting Hardware] - The cooler kit comes with a complete set of mounting hardware, including high-quality bolts, fasteners, and brackets. These components are designed to seamlessly match different vehicle types and installation configurations, simplifying the installation process while ensuring reliable and stable mounting.
- [Advanced Cooling Protection] - This cooler kit utilizes advanced cooling technology to maintain the transmission within the proper operating temperature range. Through efficient heat dissipation and effective heat exchange, it prolongs the lifespan of the transmission, reduces the risk of maintenance and failures, and enhances the overall reliability and fuel efficiency of the vehicle.
- [WARRANTY AND AFTER-SALES] - Transmission Oil Cooler provides lifelong warranty service, we have a strong after-sales team, after the purchase of products you have any questions can contact us at any time, to ensure your shopping worry free.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B41WCB7R |
| Best Sellers Rank | #147,050 in Automotive ( See Top 100 in Automotive ) #115 in Automotive Oil Coolers |
| Brand | Gagsu |
| Customer Reviews | 4.2 4.2 out of 5 stars (117) |
| Date First Available | 22 July 2022 |
| Exterior | Metal |
| Item Weight | 2.63 Kilograms |
| Item model number | LPD47391 |
| Manufacturer | Gagsu |
| Manufacturer Part Number | LPD47391 |
| Model | LPD47391 |
| Package Dimensions | 64.13 x 25.73 x 7.32 cm; 2.63 kg |

## Images

![Low Pressure Drop Transmission Oil Cooler LPD47391 4739 40,000 GVW with Mounting Hardware (Black) - Image 1](https://m.media-amazon.com/images/I/71JflbinjjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***N on 26 August 2025*

Great cooler but crappy hose. Would recommend getting a stainless steel braided hose and fittings to make it more reliable. I blew the hose after one day. The fittings held but the actual hose failed.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 14 July 2025*

This cooler dropped the transmission temps down on my wife's 2011 GMC Yukon XL Denali to 140-150 degrees steady in the summer heat. Installation required a little creativity. Watch some of the videos online for installing a 40k transmission cooler and adjust as you see fit. I did try to install this cooler with the original hard lines, but could not bend them without feeling like I was about to kink the line and reduce flow, so I wound up installing the cooler with hoses that I slid over the original hard lines. I did heed the warning of the other reviews and not use the included rubber hose and bought some elsewhere. In further research I saw people recommending to install the fittings facing up, however I have not seen any evidence that this is absolutely necessary, but may do so one day.

### ⭐⭐⭐⭐⭐ Review
*by B***9 on 3 April 2025*

Decided to do this last minute upgrade before a trip that involved towing another long bed truck with both trucks fully loaded in the bed and cabs(helping my old man move two states away). I started by checking my trans temps at highway speeds with the original cooler without towing anything. I peaked at about 180 degrees going uphill without the engine screaming. After doing the swap I started my journey, truck empty towing a small enclosed trailer also empty. Never saw the temps go above 135 degrees til I reached my destination. On the way back fully loaded down I peaked at 152 degrees on a steep uphill under heavy load and engine giving her all she had. I am very much pleased and relieved that I put this in when I did. I very much recommend it to anyone. As a side note if you haven’t already. Make sure to bypass the trans cooler that’s built into the radiator. They are notorious for failing and causing your fluids to mix in ways they shouldn’t. Just add rubber hose to your factory cooler lines with some clamps and run it out front to the cooler.

## Frequently Bought Together

- Gagsu Low Pressure Drop Transmission Oil Cooler LPD47391 4739 40,000 GVW with Mounting Hardware (Black)
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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-07*