The Best Automotive Replacement Transmission Cooling Lines of 2023

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We ranked and reviewed the top 10 Best Automotive Replacement Transmission Cooling Lines in 2023. Read more How we ranked

Emily Sloyan
Mar 28, 2023 2:32 AM

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GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line

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SCORE
9.3
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
GM

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 OE specification for fit, form, and function

PROS

CONS

6AN SS Transmission Cooler Hose Fitting, Fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks, Stainless Steel Braided Lines, Replace 700R4/ TH350/ TH400/ NP-700RTL

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SCORE
9.9
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
TIKSCIENCE

Features

Fitment - Transmission cooler hose fitting fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks.Universal kit for rat rod, hot rod, street rod, muscle car, custom and others.

Replace Number - Transmission cooler hose fitting replace number is 700R4, TH350, TH400, NP-700RTL.

Compatible with - for Turbo 350 (Some are 1/4" NPT), for Turbo 400, for Turbo 200 - 200R4, for Power Glide (Some are 1/4" NPT), for 700R4 - 4L60 - 4L60E - 4L65E, for 4L80E: 1995 & older, for Ford C4 - C6 - AOD.

Product Size- This stainless steel flexible braided transmission hoses, each 3/8" inner diameter hose is approximately 52" in length, and comes with an AN-6 inverted torch end; single-channel and dual-channel coolers are installed; the universal kit is perfect for you Rat Rod, Hot Rod, Street Rod, Muscle Car, Custom, etc.

Package Include - About 52 inch and 3/8" I.D. Stainless Steel Braided Hoses; AN6 flared to 1/4" NPT adaptors fits most 700R4, TH350, TH400; AN6 flared to 3/8" NPT adaptors; 90 Degree AN-6 Inverted flare to AN-6 flare adaptors.

PROS

CONS

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

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SCORE
9.5
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Dorman

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

PROS

CONS

Dorman 624-520 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chevrolet / GMC Models

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SCORE
7.6
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Dorman

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

PROS

CONS

GM Genuine Parts 15817233 Automatic Transmission Fluid Cooler Line

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SCORE
8.2
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
GM

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 OE specification for fit, form, and function

PROS

CONS

GM Genuine Parts 25880047 Automatic Transmission Fluid Cooler Inlet Line

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SCORE
9.5
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
GM

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 OE specification for fit, form, and function

PROS

CONS

Dorman 624-997 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Jeep Models

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SCORE
8.1
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Dorman

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

PROS

CONS

GM Genuine Parts 15773661 Automatic Transmission Fluid Cooler Lower Line

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SCORE
9.6
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
GM

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 OE specification for fit, form, and function

PROS

CONS

ACDelco GM Genuine Parts 23370657 Automatic Transmission Fluid Cooler Inlet and Outlet Line

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SCORE
7.5
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
GM

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 OE specification for fit, form, and function

PROS

CONS

Dorman 624-891 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Dodge Models

CHECK LATEST PRICE

SCORE
8.1
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Dorman

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

PROS

CONS

Last update on 2023-03-28 / Prices / Affiliate links / Images, and Product Highlights from Amazon Product Advertising API

Editor's Notes

We ranked and reviewed the top 10 Best Automotive Replacement Transmission Cooling Lines in 2023. With the support of 52,561 customer's reviews, we hope that this article can give you the most realistic view of these products. The list below contains some main brands as gm, tikscience, dorman.