Best Gates Automotive Replacement Engine Timing Parts in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Gates Automotive Replacement Engine Timing Parts

ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley
#TOP1
Acdelco Gold 38158 Drive Belt Tensioner Assembly With
9.8
PM SCORE
ACDelco Gold 38103 Drive Belt Tensioner Assembly with Pulley
#TOP2
Acdelco Gold 38103 Drive Belt Tensioner Assembly With
9.8
PM SCORE
GM Genuine Parts 12605175 Drive Belt Tensioner
#TOP3
Gm Genuine Parts 12605175 Drive Belt Tensioner
8.7
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 Gates Automotive Replacement Engine Timing Parts of 2026

Acdelco Gold 38158 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38158
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38103 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38103
8.80 X 4.80 X 3.60 Inches
1.52 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

#TOP3

Gm Genuine Parts 12605175 Drive Belt Tensioner

GENERAL MOTORS
12605175
8.70 X 4.80 X 3.00 Inches
1.52 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Helps keep drive belt at correct tension to help maintain proper function

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

GM regularly updates production and service part designs to integrate new materials and technologies

Acdelco Gold 39112 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39112
6.30 X 6.30 X 4.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Gm Genuine Parts 25191534 Drive Belt Tensioner

GENERAL MOTORS
25191534
6.90 X 6.78 X 4.90 Inches
1.95 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
WELNESS LLC 8.23

Features

Spring-loaded pulley designed to draw tension on the serpentine belt in your vehicle

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

Gm Genuine Parts 12563084 Drive Belt Tensioner

GM
12563084
11.25 X 4.75 X 4.75 Inches
2.06 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Helps keep drive belt at correct tension to help maintain proper function

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

GM regularly updates production and service part designs to integrate new materials and technologies

Acdelco Gold 39084 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39084
6.00 X 6.00 X 5.00 Inches
2.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38115 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38115
8.80 X 4.80 X 3.60 Inches
1.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38174 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38174
8.80 X 4.80 X 3.60 inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38179 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38179
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39074 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39074
6.30 X 6.30 X 4.60 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39191 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39191
6.20 X 6.20 X 4.50 Inches
1.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38184 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38184
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoplicity ✅ 9.71

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39370 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39370
6.20 X 6.20 X 4.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39351 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39351
6.00 X 6.00 X 5.00 Inches
1.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Shark Motorsports 6.05

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Top 10 automotive replacement engine timing parts Brands on Amazon

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

Brand Count
Acdelco 12
General Motors 2
Gm 1

Top 10 automotive replacement engine timing parts Brands Pie Chart


We've carried out a comprehensive analysis of 3,462 reviews on automotive replacement engine timing parts, using our selection criteria to identify the best options in the automotive tools & equipment. Our findings reveal that most customers typically select automotive replacement engine timing parts priced around $69.03, with top brands including yuesstloo, eccpp, gm, x autohaux, mopar, aisin, hyundai, philtop and scitoo and uro parts

Our team of expert editors reviewed these high-quality items and handpicked the top 15 automotive replacement engine timing parts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive tools & equipment category. These include hangzhou mt-tools co., ltd, qinchye, amazon.com, uxcell, gm ford chrysler jeep dodge ram oem parts, mtq inc, scitoo auto and autoplicity ✅ and mango s .

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