1978 GMC C25 Timing Covers

Enhance and Protect Your 1978 GMC C25 with Quality Timing Covers

Maintaining the performance of your 1978 GMC C25 starts with choosing the right parts, and high-quality Timing Covers help ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Timing Covers specifically for the 1978 GMC C25, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.

Affordable and Reliable Timing Covers for Every Budget

Finding affordable, quality Timing Covers is easy at Advance Auto Parts. With prices starting as low as $33.99 and an average price of $174.58, you can choose one that fits your budget while delivering the quality you expect. Our Timing Covers are competitively priced, ranging from $33.99 to $246.99, so you get value without compromising on strength or reliability.

Explore Related Parts for a Complete Solution

To further enhance your 1978 GMC C25, don’t miss our related parts categories, including Timing Cam Gears and Timing Sets. These additions will round out your repair or upgrade project and ensure your vehicle is ready for any adventure.
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Timing Covers for Your 1978 GMC C25

Edelbrock – Edelbrock Small-Block Chevrolet Two Piece Front Cover, 4242 (Part No.4242)

Edelbrock Small-Block Chevrolet Two Piece Front Cover, 4242

from

$189.99
“Edelbrock part No: 4242 Small-Block Chevrolet (May require modification to cover axle pin on gear drive.) This die-stamped two-piece front cover for small-block Chevys is made from .090″” aluminum for light weight and excellent strength. This attractive and unique design allows quick camshaft removal without dropping oil pan or breaking oil pan seal. Includes all necessary gaskets, bolts and seals. Will not fit 1987 and later engines. Note: If cam button is desired, a nylon cam button must be used.”
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Dorman – Dorman Timing Cover with Gasket and Seal, 635-510 (Part No.635-510)

Dorman Timing Cover with Gasket and Seal, 635-510

from

$42.49
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-231 (Part No.9-231)

Cloyes Performance Engine Timing Cover, 9-231

from

$246.99
Quick Button Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding Quick Adjust). Includes Fully Rollerized Endplay Adjustable Cam Button. A Pefect Compliment to Your Hex-A-Just Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Performance – Cloyes Performance Quick Button Two-piece Timing Cover, 9-221 (Part No.9-221)

Cloyes Performance Quick Button Two-piece Timing Cover, 9-221

from

$229.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-227 (Part No.9-227)

Cloyes Performance Engine Timing Cover, 9-227

from

$227.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-229 (Part No.9-229)

Cloyes Performance Engine Timing Cover, 9-229

from

$222.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-226 (Part No.9-226)

Cloyes Performance Engine Timing Cover, 9-226

from

$212.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-226B (Part No.9-226B)

Cloyes Performance Engine Timing Cover, 9-226B

from

$68.99
Machined Aluminum Center Plate; Threaded for Rollerized Cam Button; Grooved for O-Ring Seal; Meets or exceeds OEM performance requirements; Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.
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Cloyes Performance – Cloyes Performance Engine Timing Cover, 9-221D (Part No.9-221D)

Cloyes Performance Engine Timing Cover, 9-221D

from

$33.99
QUICK BUTTON Two-Piece Timing Cover Replacement Kit. Includes all the Required Cap Screws, O-Ring and Rollerized Button. Meets or exceeds OEM performance requirements. Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.
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FAQs for 1978 GMC C25 Timing Covers

Which Timing Covers are the top sellers for the 1978 GMC C25?

Out of 9 Timing Covers that fit 1978 GMC C25s, the following parts are the top sellers:
Dorman Timing Cover with Gasket and Seal, 635-510
from $42.49
This product is not rated
Dorman Timing Cover with Gasket and Seal, 635-510
Timing Covers
Cloyes Performance Engine Timing Cover, 9-221D
from $33.99
This product is not rated
Cloyes Performance Engine Timing Cover, 9-221D
Timing Covers
Cloyes Performance Engine Timing Cover, 9-226B
from $68.99
This product is not rated
Cloyes Performance Engine Timing Cover, 9-226B
Timing Covers

How can I make sure that a part will be compatible with my 1978 GMC C25?

Our GMC C25 aftermarket and OEM parts are designed specifically for the 1978 model. You can always find your specific fitment and compatibility for your 1978 GMC on an individual product page.

What is the price range for 1978 GMC C25 Timing Covers?

The range of prices of Timing Covers for the 1978 GMC C25 goes from $33.99 up to $246.99 for the most premium parts.

What is the average price of 1978 GMC C25 Timing Covers?

1978 GMC C25 Timing Covers average $174.58 for our selection of OEM and aftermarket parts.

Does Advance Auto Parts sell Timing Covers for other GMC C25 model years?

Yes, we currently stock Timing Covers for 2 model years of GMC C25s, from 1975 to 1977. Model years 1977, 1976, and 1975 are the most popular for Timing Covers purchases.

Can I get help with 1978 GMC C25 Timing Covers orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Timing Covers and more.

What is your return policy for GMC C25 Timing Covers?

Advance Auto Parts keeps returns simple. For new GMC C25 Timing Covers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.