⚙️ Keep your engine running like a boss with ACDelco Gold!
The ACDelco Gold 4K378 Standard V-Ribbed Serpentine Belt is a premium aftermarket replacement designed to drive multiple engine components efficiently. Manufactured in the USA, it meets or exceeds OEM specifications for fit, form, and function, ensuring reliable performance across General Motors and many other vehicle models. Lightweight yet durable, this serpentine belt is a smart upgrade for professionals and enthusiasts seeking trusted quality and longevity.
| Manufacturer | ACDelco |
| Brand | ACDelco |
| Model | ACDelco - V-Ribbed Serpen (B) (4K378) |
| Item Weight | 0.16 ounces |
| Product Dimensions | 19.1 x 0.6 x 0.5 inches |
| Country of Origin | USA |
| Item model number | 4K378 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 4K378 |
| OEM Part Number | 88932529 |
A**A
Works on 2006 Silverado
Fits (air conditioner belt) a 2006 Silverado with 5.3L engine. Has been working for around 2 months and 4,000 miles. I replaced the tensioner at the same time I replaced the belt (old belt broke, likely due to extremely worn/wobbly bearings in old tensioner).
D**A
Good product, price and delivery.
Good product, price and delivery.
M**T
Great belt.
Exact part needed for my vehicle. Would recommend.
P**N
Fit Perfect on my 2005 GMC Sierra 1500 5.3L
My original GM belt went 18 years 174k miles. I tried to buy the original GM OEM belt again, but Amazon couldn't ship it for a few weeks. My old belt was so bad I didn't want to take a chance going on a trip at the end of the month, so I bought the 2nd best thing. AC Delco aftermarket, fits properly just like the GM belt did. No squeals. Likely the last AC belt I will ever change on my 2005 GMC Sierra 1500 SLE 4X4 5.3L B engine.
L**W
Great Belt
Great fit. Perfect
P**E
Not correct belt size
Had to return, belt not correct size, way to small
R**N
Belt works
Good fit
C**N
Fast shipping
Worked great
Trustpilot
1 month ago
1 week ago
