Is this part covered by warranty?

Yes, this ACDelco Engine Timing Belt includes a 24-month limited warranty covering defects in materials and workmanship. AutoBuffy also offers 30-day hassle-free returns if the part doesn't fit your vehicle.

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We can’t guarantee fitment or accept fitment returns without a vehicle selected.

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Timing Belt

Name: Timing Belt
Brand: ACDelco
SKU: 90K39129A
Availability: InStock
Rating: 4.9 (12847 reviews)

Authorized Dealer

Timing Belt

BrandACDelcoLearn More

Qty/Vehicle1

ConditionNew

Includes: (1) Engine Timing Belt, Hardware

$000

•In Stock•Fast Shipping

Estimated Delivery by calculating...

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Ships to

Product Specifications

Features & Benefits

•Direct OE fit - no modifications needed
•Meets or exceeds manufacturer specs
•24-month warranty included
•Fast Shipping — ships same day before 3 PM ET

BrandACDelco

Part Number90K39129A

Part TypeEngine Timing Belt

ConditionNew

Grade TypeStandard

Features Benefits - Bullet 1Helps synchronize valve timing with compression

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Frequently Asked Questions

We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.

What vehicles does this Engine Timing Belt fit?

This ACDelco Engine Timing Belt (Part #90K39129A) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.

Is this an OEM or aftermarket part?

This is a premium aftermarket Engine Timing Belt by ACDelco, designed to meet or exceed OEM specifications with strict quality control standards.

What warranty is included?

This ACDelco Engine Timing Belt is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.

How long does shipping take?

Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.

Can I return this if it does not fit?

30-day money-back guarantee. Return unused parts in original packaging for full refund.

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Product Specifications

Brand

ACDelco

Part Type

Engine Timing Belt

Features Benefits - Bullet 1

Helps synchronize valve timing with...

Features Benefits - Bullet 3

Some ACDelco Gold parts may have fo...

Part Number

90K39129A

Grade Type

Standard

Features Benefits - Bullet 2

Helps create optimal conditions for...

Features Benefits - Bullet 4

Premium aftermarket replacement par...

Grade TypeStandard

Features Benefits - Bullet 1Helps synchronize valve timing with compression

Features Benefits - Bullet 2Helps create optimal conditions for efficient combustion

Features Benefits - Bullet 3Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Features Benefits - Bullet 4Premium aftermarket replacement part

Features Benefits - Bullet 5Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Product DescriptionACDelco Gold (Professional) Engine Timing Belts are a high quality alternative to Original Equipment (OE) parts. These belts help synchronize valve timing with compression, which helps create optimal

Programming RequiredNo

Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more

Main Image

Click to expand

Timing Belt

Authorized Dealer

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Part #:90K39129A

Call 888-477-2530 for Price

OE REPLACEMENT

Timing Belt

Part #:90K39129A

Engine Timing Belt

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Quantity:

In Stock10 or more available

Fast delivery between Mon, Jun 22 to Mon, Jun 22

Ships To:

Call 888-477-2530 for Price

Key Features

OEM-Equivalent QualityMeets/exceeds factory specs

American BusinessMaryland since 1986

24-Month WarrantyLimited coverage on every part

Fast Same Day ShippingWe ship all orders the same business day before cutoff

Product Specs

BrandACDelco

Part Number90K39129A

Part TypeEngine Timing Belt

ConditionNew

Grade TypeStandard

Features Benefits - Bullet 1Helps synchronize valve timing with compression

Features Benefits - Bullet 2Helps create optimal conditions for efficient combustion

Features Benefits - Bullet 3Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Questions & Answers

Have a Question?

Ask Marvin, our Car Expert

Things to Know

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts

Check if this fits your car first

Timing Belt

Timing Belt

Product Specifications

Compatibility

Vehicle Compatibility

Frequently Asked Questions

Compatibility

Vehicle Compatibility

Product Specifications

Timing Belt

Timing Belt

Key Features

Product Specs

Compatibility

Vehicle Compatibility

Questions & Answers

Things to Know

24 Month Warranty

30 Day Returns

Fast Same Day Shipping

About This Engine Timing Belt

Key Features

Signs This Part Needs Replacement

ACDelco

Installation Guide

Tools Needed

Frequently Asked Questions