---
product_id: 452845367
title: "GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line"
brand: "gm genuine parts"
price: "฿69911"
currency: THB
in_stock: false
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.co.th/products/452845367-gm-genuine-parts-25999420-automatic-transmission-fluid-cooler-inlet-outlet
store_origin: TH
region: Thailand
---

# Designed for GM automatic transmissions OEM-spec precision fit Durable stainless steel build GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line

**Brand:** gm genuine parts
**Price:** ฿69911
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Upgrade your ride with GM’s trusted transmission cooler line—because your engine deserves the best.

## Quick Answers

- **What is this?** GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line by gm genuine parts
- **How much does it cost?** ฿69911 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/452845367-gm-genuine-parts-25999420-automatic-transmission-fluid-cooler-inlet-outlet)

## Best For

- gm genuine parts enthusiasts

## Why This Product

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

## Key Features

- • **Plug-and-Play Installation:** No assembly required—get your transmission cooler line ready to perform right out of the box.
- • **GM-Recommended Quality Assurance:** Backed by General Motors for trusted reliability and factory-grade standards.
- • **Built to Last with Stainless Steel:** Corrosion-resistant material guarantees long-term durability under harsh conditions.
- • **Precision Engineered for GM Vehicles:** Exact OEM fit ensures seamless installation and optimal performance.
- • **Optimized for Automatic Transmission Systems:** Specifically designed to maintain ideal transmission fluid temperatures, protecting your vehicle’s drivetrain.

## Overview

The GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line is a factory-spec replacement part crafted from durable stainless steel. Engineered to meet GM’s original equipment standards, it ensures a perfect fit and reliable performance for GM automatic transmission systems. This ready-to-install component is designed to maintain optimal transmission fluid temperatures, enhancing vehicle longevity and efficiency.

## Description

GM Genuine Parts Automatic Transmission Oil Cooler Hose Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Review: Arrived quickly. Fit perfect. This was by no means easy to install, at no fault to the seller. I jacked up the passenger side, only because I needed to install a wheel speed sensor. Had to pull the front clip off, plastic only. I removed the electric radiator fans to facilitate installation, personal choice. There is a black plastic piece that runs and bolts in across the grill and bolts in under headlights, I removed the screw bolts in order to maneuver the line attaching to the AT cooler better. Removed some fender liner screw bolts and 2 brace screw bolts. All wheel drive front axle made it even more fun, I would have dropped the axle but my jack started leaking fluid. Anyway 6-8 hrs taking breaks and fighting rusted screw bolts. Probably could do it in 4 now that I've done it once.. GL
Review: Bien hecho, de buena calidad, pero no le queda a mi Suburban 2010, ya que está manguera es para Suburban con radiador de aceite para Transmisión y mi Suburban no cuenta con el, y no le queda, pero si tú Suburban tiene Radiador de aceite de Transmisión seguro le queda.

## Features

- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM Original Equipment specifications for fit, form, and function

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003YOD39E |
| Assembly Required | No |
| Brand | GM GENUINE PARTS |
| Colour | Silver |
| Country of Origin | USA |
| Customer Reviews | 4.5 4.5 out of 5 stars (191) |
| Date First Available | 7 August 2012 |
| Global Trade Identification Number | 00021625774961 |
| Item Dimensions LxWxH | 124.5 x 80 x 15.5 Centimeters |
| Item Weight | 871 g |
| Item model number | 25999420 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 25999420 |
| Material | Stainless Steel |
| Net Quantity | 1.0 Count |
| Nominal Wall Thickness | 0.03 inches |
| OEM Part Number | 25999420 |
| Product Dimensions | 124.46 x 80.01 x 15.49 cm; 870.9 g |
| Specific Uses For Product | Automatic transmission systems |
| UPC | 021625774961 |
| Volume | 9224 Cubic Inches |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Colour:** Silver
- **Global Trade Identification Number:** 00021625774961
- **Item Weight:** 871 g
- **Manufacturer:** ACDelco
- **Material:** Stainless Steel
- **Nominal Wall Thickness:** 0.03 inches
- **Specific Uses For Product:** Automatic transmission systems
- **UPC:** 021625774961

## Images

![GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line - Image 1](https://m.media-amazon.com/images/I/414SdOwQbJL.jpg)
![GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line - Image 2](https://m.media-amazon.com/images/I/41jptOaeLnL.jpg)
![GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line - Image 3](https://m.media-amazon.com/images/I/51N-YcZVRZL.jpg)

## Questions & Answers

**Q: Does this fit a 2009 Tahoe ls**
A: if it has the 6 speed transmission and trailer tow package with aux. trans cooler

**Q: Does this fit 1985 C10**
A: I tried to verify at rockauto dot com but didn’t have enough info to get specifics. Engine type, etc. Visit there and then you should be able to verify or find the one you need.

**Q: Does this fit a 2012 chevy**
A: Google the year make and model of the vehicle and type in the part number .and this will show you if the part will fit the vehicle.

**Q: Does it fit 1995 4.0l 6cyl 4x4 jeep grand cherokee laredo**
A: If your 1995 4.0l 6cyl 4x4 jeep grand Cherokee Laredo has a 6speed auto from a GM with the aux trans cooler then yes it will fit, otherwise it don't believe it will work for your application

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***S on 31 March 2021*

Arrived quickly. Fit perfect. This was by no means easy to install, at no fault to the seller. I jacked up the passenger side, only because I needed to install a wheel speed sensor. Had to pull the front clip off, plastic only. I removed the electric radiator fans to facilitate installation, personal choice. There is a black plastic piece that runs and bolts in across the grill and bolts in under headlights, I removed the screw bolts in order to maneuver the line attaching to the AT cooler better. Removed some fender liner screw bolts and 2 brace screw bolts. All wheel drive front axle made it even more fun, I would have dropped the axle but my jack started leaking fluid. Anyway 6-8 hrs taking breaks and fighting rusted screw bolts. Probably could do it in 4 now that I've done it once.. GL

### ⭐⭐ Review
*by L***R on 10 October 2019*

Bien hecho, de buena calidad, pero no le queda a mi Suburban 2010, ya que está manguera es para Suburban con radiador de aceite para Transmisión y mi Suburban no cuenta con el, y no le queda, pero si tú Suburban tiene Radiador de aceite de Transmisión seguro le queda.

### ⭐⭐⭐⭐⭐ Review
*by D***. on 12 March 2024*

Good fit.

## Frequently Bought Together

- GM Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line
- GM Genuine Parts 15779543 Automatic Transmission Auxiliary Fluid Cooler Inlet Line
- GM Genuine Parts 84828848 Engine Oil Cooler Hose Kit with Bracket, Gasket and Bolt, Black

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*