Best Automotive Replacement Air Conditioning Liquid Line Repair Kits in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Automotive Replacement Air Conditioning Liquid Line Repair Kits

SPLICE-LOK A/C Repair Kit, 5/8 & 3/4 Tube
#TOP1
Splice-Lok A/C Repair Kit, 5/8 & 3/4 Tube
8.3
PM SCORE
Dorman 800-644 Line Splice For 3/4 In. Aluminum Lines
#TOP2
Dorman 800-644 Line Splice For 3/4 In. Aluminum
8.2
PM SCORE
Dorman 800-670 A/C Line Splice Kit for 5/8 Line With No.10 Hose
#TOP3
Dorman 800-670 A/C Line Splice Kit For 5/8
8.0
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 Automotive Replacement Air Conditioning Liquid Line Repair Kits of 2026

Market Overview
Automotive Replacement Air Conditioning Liquid Line Repair Kits Reviewed
  • Reviews Analyzed: 406 Items
  • PM Avg. Rating: 4.8 / 10
20 Products Evaluated
  • Highest Price: $287.53
  • Lowest Price: $8.99
  • Avg. Price: $49.59

Splice-Lok A/C Repair Kit, 5/8 & 3/4 Tube

SPLICE-LOK
ACRK-045C
1.38 X 2.00 X 6.04 Inches
0.24 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AGS Automotive Solutions 9.82

Features

Splice-Lok kit include (2) nuts, (2) ferrules, (2) seals, and (1) body

Uses standard hand tools

Use on steel, aluminum, and copper lines as well as reduced barrier hose

Also available in full assortment kits

Not for in brake or clutch systems

#TOP2

Dorman 800-644 Line Splice For 3/4 In. Aluminum Lines

DORMAN
800-644
2.05 X 1.25 X 5.75 Inches
0.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Save time and money by repairing only the damaged section, not the entire A/C line assembly

Easy to install

Sturdy aluminum construction

Also available as part of Dorman's A/C Line Repair Kit

Backed by team of engineers and quality control specialists in the United States

Dorman 800-670 A/C Line Splice Kit For 5/8 Line With No.10 Hose

DORMAN
800-670
24.70 X 2.75 X 2.75 Inches
0.70 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A solution to costly and unnecessary A/C line repairs

Remove only the damaged section and splice the line back together

Easy to install

Available in different sizes

Backed by team of engineers and quality control specialists in the United States

Dorman 800-671 A/C Line Splice Kit For 3/8 Line With No. 6 Hose, Black

DORMAN
800-671
24.70 X 2.75 X 2.75 Inches
0.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A solution to costly and unnecessary A/C line repairs

Remove only the damaged section and splice the line back together

Easy to install

Available in different sizes

Backed by team of engineers and quality control specialists in the United States

#TOP5

Ac Line Repair Kit 3/8 Tube Outer Diameter, 24" Tube Removal Repair Length

AUTO COOLING SOLUTIONS
TR6-24C
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Auto Cooling Solutions 7.71

Features

AC Line Repair Kit, No Special Tools Needed

Very Flexible A/C Barrier Rubber Hose, Pressure Tested and Ready to Install

Includes Installation Instructions

Quick, Easy, Cost Effective Solution to Fix a Leaking A/C Line

Made in the USA!!

#TOP6

Dorman 800-676 Line Splice For 3/8 Inch Aluminum Line

DORMAN
800-676
1.25 X 2.00 X 4.19 Inches
0.12 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Save time and money by repairing only the damaged section, not the entire A/C line assembly

Easy to install

Sturdy aluminum construction

Also available as part of Dorman's A/C Line Repair Kit

Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

#TOP7

Ac Line Repair Kit 1/2" Tube Outer Diameter 12" Tube Removal Repair Length

AUTO COOLING SOLUTIONS
TR8-12C
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Auto Cooling Solutions 7.71

Features

AC Line Repair Kit, No Special Tools Needed

Very Flexible A/C Barrier Rubber Hose, Pressure Tested and Ready to Install

Includes Installation Instructions

Quick, Easy, Cost Effective Solution to Fix a Leaking A/C Line

Made in the USA!!

#TOP8

Dorman 800-674 A/C Line Splice Kit For 3/4 Line With No.12 Hose

DORMAN
800-674
24.70 X 2.75 X 2.75 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A solution to costly and unnecessary A/C line repairs

Remove only the damaged section and splice the line back together

Easy to install

Available in different sizes

Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

#TOP9

Ac Line Repair Kit 3/4" Tube Outer Diameter, 12" Tube Removal Repair Length.

AUTO COOLING SOLUTIONS
TR12-12C
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Auto Cooling Solutions 7.76

Features

AC Line Repair Kit, No Special Tools Needed

Very Flexible A/C Barrier Rubber Hose, Pressure Tested and Ready to Install

Includes Installation Instructions

Quick, Easy, Cost Effective Solution to Fix a Leaking A/C Line

Made in the USA!!

Gm Genuine Parts 15-34057 3/8 In Air Conditioning Line Repair Kit

GM
15-34057
4.06 X 2.31 X 1.81 Inches
0.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Newparts 9.54

Features

professional, premium aftermarket replacement

provides the performance and dependability you expect from acdelco

manufactured to meet expectations for fit, form, and function

country of origin: united states

Fit type: Vehicle Specific

Xxxcarxxx Air Conditioning Repair Splice Connector Kit,Aluminum Lines Line Splices Connector For 5/8 In. 3/8 In. 1/2 In,Replacement For 800-640, 800-641, 800-642

XXXCARXXX
G-QP-1020
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
luang yutl 9.64

Features

【Function】Works for A/C, coolant, heater, oil, P/S return, and trans line repairs.Quickly repair damaged pipes,no crimping tool required. Repair only the damaged part, not the entire A/C circuit assembly, Complete your repair in minutes.

【Feature】Come with Anti-Vibration tension ring, can resists vibration leaks.Compensates for out of bounds or scratched tubing. Expanded seal sleeve provides more sealing area.This set includes 3 different sizes:800-640(5/8),800-641(3/8),800-642(1/2)

【Material】The product is made of high-quality aluminum material, it has excellent performance and corrosion-resistant, anti-rust, oxidation resistance, and durability.long lasting.

【Compatibility】 The 800-640 Line Splice fits for 5/8 In. interchange part number: 19188253; 15-34293; 76011; AC58; The 800-641 Line Splice fits for 3/8 In. interchange part number: 19194701; 15-34057; 76002; AC38; The 800-642 Line Splice fits for 1/2 In. interchange part number: 19194700; 15-34056; 76001; AC12.

【SATISFACTION SERVICE 】 If you are not satisfied with our products.You can request a full refund within 30 days to support a 12 month warranty.Professional and sincere service allows you to purchase without risk!

#TOP12

3/8 Inch Line Splice For Dorman 800-641 Aluminum Lines For Chevy Suburban For Gmc Yukon For Jeep Vehicle Ac Repair Tools

YRANZO
LINE-641
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
YRAN RACING 9.73

Features

Fits: for Dorman 800-641

Package includes:1* Aluminum Alloy Silver Tube 2* Aluminum Alloy Red Joint 2* Fluororubber Green Gasket 2* Copper gasket

Specifications:1 Line Splice For A/C Lines for Compensates for out of bounds or scratched tubing

Repair steps:Cut the line, installed the fitting, vacuumed & refilled the system. Mineral oil is recommended,Mineral oil helps make the seal between the pipe & rubber gasket

Tips:If you have any other questions, please consult us and we are happy to answer it for you

Dorman 800-672 A/C Line Splice Kit For 1/2 Line With No.8 Hose, 24.7 Inch, Black

DORMAN
800-672
24.70 X 2.75 X 2.75 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A solution to costly and unnecessary A/C line repairs

Remove only the damaged section and splice the line back together

Easy to install

Available in different sizes

Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

Ac Line Repair Kit 3/8" Tube Outer Diameter, 12" Tube Removal Repair Length

AUTO COOLING SOLUTIONS
TR6-12C
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Auto Cooling Solutions 8.02

Features

AC Line Repair Kit, No Special Tools Needed

Very Flexible A/C Barrier Rubber Hose, Pressure Tested and Ready to Install

Includes Installation Instructions

Quick, Easy, Cost Effective Solution to Fix a Leaking A/C Line

Made in the USA!!

Ac Line Repair Kit 3/8" Tube Outer Diameter, 6" Tube Removal Repair Length.

AUTO COOLING SOLUTIONS
TR6-6C
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Auto Cooling Solutions 8.11

Features

AC Line Repair Kit, No Special Tools Needed

Very Flexible A/C Barrier Rubber Hose, Pressure Tested and Ready to Install

Includes Installation Instructions

Quick, Easy, Cost Effective Solution to Fix a Leaking A/C Line

Made in the USA!!

Replace For 800-640, 800-641, 800-642, Air Conditioning Repair Splice Connector Kit Fits For 5/8 In. 3/8 In. 1/2 In. Aluminum Lines

USVEHJ
800-640 800-641 800-642
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Dudu direct US 7.13

Features

【Perfect Replacement】The 800-640 Line Splice fits for 5/8 In. Aluminum Lines, interchange part number—19188253; 15-34293; 76011; AC58; The 800-641 Line Splice fits for 3/8 In. Aluminum Lines, interchange part number—19194701; 15-34057; 76002; AC38; The 800-642 Line Splice fits for 1/2 In. Aluminum Lines, interchange part number—19194700; 15-34056; 76001; AC12.

【Strong Function】These kits can repair only the damaged part of the A/C line, instead of repairing the whole line assembly. They can fix the defective A/C line in minutes and help you save money. Absolutely an economical and time-saving solution.

【Easy Installation】It is easy to install these Air Conditioning Repair Splice Connector kits, no special tools are needed, only screwdriver is needed to install.

【Superior Material】Made of high-quality copper, aluminum and rubber. With strong durability, corrosion resistance and anti-rust performance. Better quality allows the items to be used for a longer time.

【100% Satisfaction Guarantee】 We are committed to providing excellent products and the best service for our customers. If you are not satisfied with the product, you can simply return it. We support a 30-day full refund on return and a 12-month warranty.

Line Splices/A/C/Air Conditioning Repair Splice Connector For 5/8 In. 3/8 In. 1/2 In. Aluminum Lines Replaces 800-640 800-641 800-642

YOURSME
YSM-640/641/642
7.17 X 4.72 X 1.77 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TCO Tools USA 9.89

Features

Feature -- Come with Anti-Vibration tension ring, can resists vibration leaks.Compensates for out of bounds or scratched tubing. Expanded seal sleeve provides more sealing area. This set includes 3 different sizes(3/8", 1/2", 5/8"). Made of high-quality aluminum, with excellent corrosion and rust resistance.

Function -- Works for A/C, coolant, heater, oil, P/S return, and trans line repairs. It helps to restore the air conditioner to its original operating temperature and prevent future failures.Can quick, durable permanent metal line repair without line removal and No crimping tool required. Repair only the damaged part, not the entire A/C circuit assembly, Complete your repair in minutes.

800-640 Line Splice For 5/8 in. Aluminum Lines -- Fitting Angle: Straight / Fitting Attachment End Type 1: Compression / Fitting Attachment End Type 2: Compression / Fitting Size End 1 (in): 0.625 In. / Fitting Size End 2 (in): 0.625 In. / Universal Or Specific Fit: Universal / Quick Connect System: No. Replaces for 15-34293, 76011, AC58, 19188253.

800-641 Line Splice For 3/8 In. Aluminum Lines -- Fitting Angle: Straight / Fitting Attachment End Type 1/ Type 2: Compression | Fitting Size End 1 (in): 0.375 In. | Fitting Size End 2 (in): 0.375 In. | Universal Or Specific Fit: Universal | Quick Connect System: No | Lock Design Pattern: Compression | Lug Outside Diameter (IN): Compression | Free Length (In): 1 Replaces for 19194701; 15-34057; 76002; AC38.

800-642 Line Splice For 1/2 In. Aluminum Lines -- Fitting Angle: Straight | Fitting Attachment End Type 1: Compression | Fitting | Attachment End Type 2: Compression | Fitting Size End 1 (in): 0.5 In. | Fitting Size End 2 (in): 0.5 In. | Universal Or Specific Fit: Universal | Quick Connect System: No | Replaces for 15-34056, 76001, 19194700, AC12.

Esewalas 100Pcs Rubber Gasket,Rubber Manifold Repair Sealing O Ring Kit,Air Conditioning 1/4'' Charging Hose O Ring Rubber Repair Replacement Washer,For A/C Refrigeration Charging Hose

ESEWALAS
505XJMFQ001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yvehicle 5.84

Features

[Package Includes] The package includes 100 rubber manifold repair sealing O-ring seals in sufficient quantity to meet your installation needs.

[Material] The sealing O-ring is made of high-quality rubber, which is waterproof, UV resistant, oil resistant, wear-resistant, impact resistant, Freon resistant, and corrosion-resistant.

[Purpose] Rubber gasket repair kit is used for standard 1/4 "torch air conditioning refrigeration inflation hose high-pressure HVAC refrigerant inflation hose/manifold repair.

[Applicable]The rubber O-ring combination kit is very suitable for professional fillers, supplies, tools, cars, garages, plumbers, mechanics, workshops, maintenance, air or gas connections.

[Kind Reminder] Please note that the O-ring is conical and requires the use of a larger diameter end to connect correctly. Before purchasing, please carefully check your machine model and the required product.

#TOP19

Hydraulic Hose Crimper, Lightweight A/C Hose Crimper Kit, 15Mm Stroke Auto Accessory For Auto Car Hose Crimping Tool

WOSUNE
WOSUNEVK80RCMOSE
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
sunboruino 9.86

Features

The base of the crimping tool can be easily installed on the workbench using a fixing fixture, or it can be firmly fixed in a vise.

Suitable for bead locking accessories. The mold snaps into the press fixture quickly without the need for pins or screws.

Including 7 die sets for hose sizes, #8 (13/32in), #10 (1/2in), #12 (5/8in); Reduced Barrier, #6SRB (5/16in), #8SRB (13/32in), #10SRB (1/2in), #12SRB (5/8in).

Comes with a whole set of accessories and one storage box, which makes it easier for you using.

The aluminum alloy pump is lighter in weight, and the hand‑held detachable hydraulic design makes the manual air conditioning hose compressor easier to use.

O-Ring 270Pc Assortment | Sealing Orings – Silicone Rubber Washer | Compatible With Ac - A/C - Air Conditioner | Coolant Leak Recharge & Repair

MOBLING
OUTDOOR-2018-MB22
2.00 X 4.00 X 1.00 Inches
12.00 ounces
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Mobling 6.16

Features

Multi-Purpose: Great for many things such as plumbing, vehicle repair, or other mechanic work

Sealing: Each ring is capable of sealing very high amounts of air pressure

Assortment: In each kit are 270 O-rings of multiple diameters for most situations

Durable: Rings are made from a long-lasting EPDM rubber

Easy to Store: O-rings come in a thin plastic box that is easy to put away

Top 10 automotive replacement air conditioning liquid line repair kits Brands on Amazon

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

Brand Count
Dorman 6
Auto Cooling Solutions 5
Esewalas 1
Gm 1
Mobling 1
Splice-Lok 1
Usvehj 1
Wosune 1
Xxxcarxxx 1
Yoursme 1

Top 10 automotive replacement air conditioning liquid line repair kits Brands Pie Chart


We've carried out a comprehensive analysis of 406 reviews on automotive replacement air conditioning liquid line repair kits, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select automotive replacement air conditioning liquid line repair kits priced around $49.59, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 20 automotive replacement air conditioning liquid line repair kits for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right kits Products based on their needs, saving them considerable time when choosing which automotive replacement air conditioning liquid line repair kits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.