T
Ted R.Verified Buyer
02/03/2025
Works perfectly
Setup was simple and it has worked reliably since day one.
ACDelcoACDelco Gold 962 mm Serpentine Belt K040378HD
$57.49
FREE delivery · Delivery by Oct 19
- Free shipping over $25
- Next-business-day ship
- Easy returns
Guides & Resources
Product guides for this item are not available online yet. Contact us if you need documentation.
Shipping Information
Free shipping on orders over $25. Most items ship next business day after your order is placed.
Returns Policy
Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.
Product facts
About This Item
- Drive multiple engine functions efficiently through the multi-ribbed serpentine design that powers components like the alternator, power steering pump, and water pump.
- Get a dependable replacement that is manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models.
- Ensure reliable everyday operation with a standard replacement grade type designed as a high-quality alternative to Original Equipment parts.
- Benefit from precise engineering featuring 4 ribs, a 14 mm top width, and a 962 mm effective length for your replacement needs.
- Enjoy peace of mind with a 12-month warranty backing your purchase of this high-quality ACDelco Gold part.
Details
Product Description
Keep your engine running reliably with the ACDelco Gold Serpentine Belt K040378HD. This multi-ribbed serpentine belt efficiently drives multiple engine functions, including the alternator, the power steering pump, and the water pump, helping you maintain smooth everyday operation. Built as a high-quality alternative to Original Equipment parts, this belt is manufactured to meet your expectations for fit, form, and function for General Motors vehicles as well as most makes and models, including special applications. The belt features 4 ribs, an effective length of 962 mm, an outside circumference of 977 mm, a top width of 14 mm, and comes in a distinct green and black color. This standard replacement part is backed by a 12-month warranty.
Technical data
Product Specifications
- Part #
- K040378HD
- SKU #
- 84604
- Color
- Green/Black
- Rib Quantity
- 4
- Outside Circumference
- 977 mm
- Grade Type
- Premium
- Top Width
- 14 mm
- Effective Length
- 37.8 in
- Cross Section Designation
- K
- Type
- Standard
Brand
Brand Story
Since 1974
Brakes
ACDelco
General Motors’ service-parts brand
ACDelco is General Motors’ aftermarket parts brand, formed in 1974 from the AC Spark Plug and United Delco businesses. The line covers batteries, brakes, filters, and ignition parts sold at District Mailing Auto.
Shop ACDelcoHeritage
1974
GM combined the AC Spark Plug and United Delco businesses under the ACDelco name in 1974.
Parts
Service lineup
The brand covers batteries, brake parts, filters, and ignition components.
Storefront
At District Mailing Auto
Shop the ACDelco products currently in the catalog.
Customer Reviews
4.9
Based on 19 reviews
P
Pat M.Verified Buyer
11/28/2025
Better than expected
Reliable product and smooth buying experience on this site.
C
Chris W.Verified Buyer
07/05/2025
Highly recommend
Good experience overall from checkout to delivery.
J
Jordan L.Verified Buyer
04/15/2025
Very happy with this
Packaging was secure and the item was in perfect condition.
E
Emma S.Verified Buyer
12/14/2025
Exactly what I needed
Easy to order and arrived quickly. Product matched the listing and works great.
D
Dana H.Verified Buyer
10/02/2025
Solid purchase
Quality feels premium and it fits my needs well.
A
Alex P.Verified Buyer
01/09/2025
Fast shipping too
Impressed with the quality for the price. Will be back for more.
S
Sam T.Verified Buyer
03/22/2025
Great quality
Exactly as described. Good value and I would order again.
R
Riley N.Verified Buyer
06/08/2025
No complaints
Quick delivery and the product exceeded my expectations.
M
Maria K.Verified Buyer
08/17/2025
Would buy again
Does what it is supposed to do. Happy with this purchase.
T
Ted R.Verified Buyer
02/03/2025
Works perfectly
Setup was simple and it has worked reliably since day one.
P
Pat M.Verified Buyer
11/28/2025
Better than expected
Reliable product and smooth buying experience on this site.
C
Chris W.Verified Buyer
07/05/2025
Highly recommend
Good experience overall from checkout to delivery.
J
Jordan L.Verified Buyer
04/15/2025
Very happy with this
Packaging was secure and the item was in perfect condition.
E
Emma S.Verified Buyer
12/14/2025
Exactly what I needed
Easy to order and arrived quickly. Product matched the listing and works great.
D
Dana H.Verified Buyer
10/02/2025
Solid purchase
Quality feels premium and it fits my needs well.
A
Alex P.Verified Buyer
01/09/2025
Fast shipping too
Impressed with the quality for the price. Will be back for more.
S
Sam T.Verified Buyer
03/22/2025
Great quality
Exactly as described. Good value and I would order again.
R
Riley N.Verified Buyer
06/08/2025
No complaints
Quick delivery and the product exceeded my expectations.