Best Gm Automatic Transmission Assemblies in 2026

Daisy
Last Updated: Feb 8, 2026

At a Glance: Our Top Picks for Gm Automatic Transmission Assemblies

Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge/Ram Models, Silver
#TOP1
Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly
9.6
PM SCORE
Dorman 624-279 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Lexus / Toyota Models
#TOP2
Dorman 624-279 Automatic Transmission Oil Cooler Hose Assembly
9.2
PM SCORE
Dorman 624-710 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Cadillac / Chevrolet / GMC Models
#TOP3
Dorman 624-710 Automatic Transmission Oil Cooler Hose Assembly
7.0
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Gm Automatic Transmission Assemblies of 2026

Market Overview
Gm Automatic Transmission Assemblies Reviewed
  • Reviews Analyzed: 845 Items
  • PM Avg. Rating: 5.3 / 10
16 Products Evaluated
  • Highest Price: $139.87
  • Lowest Price: $9.59
  • Avg. Price: $54.09

Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Chrysler/Dodge/Ram Models, Silver

DORMAN
624-284
32.30 X 4.33 X 0.90 Inches
0.98 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-279 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Lexus / Toyota Models

DORMAN
624-279
27.55 X 7.87 X 3.93 Inches
0.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-710 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Cadillac / Chevrolet / Gmc Models

DORMAN
624-710
11.00 X 11.00 X 43.00 Inches
0.70 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-551 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Ford / Lincoln Models

DORMAN
624-551
4.70 X 12.99 X 52.40 Inches
2.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-892 Automatic Transmission Oil Cooler Hose Assembly For Select Dodge Models

DORMAN
624-892
8.00 X 8.00 X 49.00 Inches
1.15 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Reliable replacement - this automatic transmission oil cooler hose is precision-engineered to replace the stock hose assembly on specific vehicles

Quality construction - manufactured from metal and rubber with OE-style fittings to provide a reliable replacement

Excellent value - OE quality at a lower price

Vehicle tested - has undergone on-vehicle testing to ensure quality, proper fit and performance

Ensure fit – to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage

Dorman 624-514 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Jeep Models

DORMAN
624-514
3.90 X 6.10 X 26.10 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-270 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Dodge / Ram Models

DORMAN
624-270
7.90 X 7.87 X 55.10 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-893 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Dodge Models

DORMAN
624-893
9.99 X 9.99 X 9.99 Inches
1.41 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-224 Outlet From Auxiliary Cooler (Lower) To Transmission (Rear) Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Ford / Lincoln Models

DORMAN
624224
11.90 X 11.90 X 11.90 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Reliable replacement - this automatic transmission oil cooler hose is precision-engineered to replace the stock hose assembly on specific vehicles

Quality construction - manufactured from metal and rubber with OE-style fittings to provide a reliable replacement

Excellent value - OE quality at a lower price

Vehicle tested - has undergone on-vehicle testing to ensure quality, proper fit and performance

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-963 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Buick/Pontiac Models

DORMAN
624-963
59.00 X 10.00 X 1.50 Inches
0.53 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Dorman 624-627 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Dodge/Ram Models

DORMAN
624-627
46.45 X 16.92 X 8.66 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Atsg Ford A4Ld Techtran Transmission Manual

SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oregon Performance Transmission 5.72

A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible With Jeep Wrangler 2007-2018 2.0L 3.6L 3.8L

A-PREMIUM
APOCL277
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PremiumpartsWhosale 9.97

Features

【Vehicle Fitment】Compatible with Jeep Wrangler 2018-2018 L4 2.0L, 2012-2018 V6 3.6L, 2007-2011 V6 3.8L---Pressure and Return Side

【Reference Number】The A-Premium automatic transmission oil cooler line's reference number: 624-588, 624588, 5801559, 68003503AA. Before placing an order, verify that the part is compatible with your vehicle using the compatibility system.

【Durable Construction】This oil cooler line is made of durable, corrosion-resistant material for reliable, leak-free performance

【Specification】Material: Metal; Length: 5.0 inch; Hose Maximum Pressure: 100 PSI; Fitment Type: Direct Replacement

【Customer Support】1 Year Unlimited-mileage Quality Guarantee; With being sturdy and brand-new, this oil cooler hose assembly is the ideal replacement. Please get in touch with us at any time if the product has any quality issues, such as damage or isn't appropriate for your automobile.

Atsg Ford A4Ld Update (Supplemental) Techtran Transmission Rebuild Manual

SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oregon Performance Transmission 5.63

Dorman 624-071 Automatic Transmission Oil Cooler Hose Assembly Compatible With Select Chevrolet / Gmc Models

DORMAN
624-071
31.70 X 7.94 X 5.94 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AutoPlus Auto Parts 9.42

Features

Direct replacement - this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years

Ideal solution - engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage

Durable construction - made of quality materials for reliable performance and long service life

Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

Automobile Automatic Transmission Assembly / Disassembly And Overhaul (A Planned Textbook Of Automotive Major Of Vocational Education For Personnel Training) (Chinese Edition)

9787115279569
10.24 X 7.28 X 0.31 Inches
282.00 Grams
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Top 10 automatic transmission assemblies Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Dorman 12
3
A-Premium 1

Top 10 automatic transmission assemblies Brands Pie Chart


We've carried out a comprehensive analysis of 845 reviews on automatic transmission assemblies, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select automatic transmission assemblies priced around $54.09, with top brands including and dorman and a-premium

Our team of expert editors reviewed these high-quality items and handpicked the top 16 automatic transmission assemblies for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include amazon.com, oregon performance transmission and autoplus auto parts and premiumpartswhosale .

We are dedicated to assisting our users in finding the right assemblies Products based on their needs, saving them considerable time when choosing which automatic transmission assemblies to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.