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⚙️ Keep your engine running like clockwork with ACDelco Gold – the tensioner pros trust!
The ACDelco Gold 38178 Drive Belt Tensioner Assembly is a premium aftermarket replacement designed to maintain precise belt tension for optimal accessory drive system performance. Engineered with a 90-degree molded design and durable stainless steel fasteners, it fits General Motors vehicles and most other makes and models. Backed by a limited lifetime warranty and praised for quiet, reliable operation, this tensioner ensures your engine runs smoothly and efficiently.
| ASIN | B000C9KSII |
| Best Sellers Rank | #74,008 in Automotive ( See Top 100 in Automotive ) #55 in Automotive Replacement Belt Tensioners |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Color | Aluminum w/ Black Pulley |
| Compatible with Vehicle Type | Passenger Car, Truck |
| Customer Reviews | 4.7 out of 5 stars 250 Reviews |
| Fastener Material | Stainless Steel |
| Global Trade Identification Number | 00021625765570 |
| Hardware Material | Stainless Steel |
| Included Components | ACDelco - Automatic Belt (B) (38178) |
| Item Type Name | ACDelco - Automatic Belt (B) (38178) |
| Item Weight | 1 Pounds |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 89034219 |
| Manufacturer Warranty Description | Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details. |
| Model Number | 38178 |
| Number of Pieces | 1 |
| UPC | 021625765570 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Passenger Car, Truck |
A**R
Works as it should
Good quality product
R**K
Excellent tensioner
Excellent tensioner. Fit perfectly and is quiet.
T**E
Perfect fit
Perfect fit, great price, easy installation
R**V
Easy Install
The part came in a decent box with with generic instructions, but it's a pretty easy install. The only reason I gave it 4 stars is because the pulley is plastic and the old factory one is steel. I don't think there will be any issues, but it's something to be aware of. Overall a good part and noise problem solved.
U**1
Change this tensioner on your car!
Had an issue on GM 3.7L 5 cylinder where it sounded like timing chain rattle on cold starts. Replaced the serpentine belt, idler and tensioner at same time. Fixed the worrying rattle. Everything should be replaced as a set
T**.
This brand wont break down
after 2 failures from other brands (complete disintegration) of metal when turning it down- This one worked. Don't waste your money on any other tensioner. My belt was already too short so I was really giving it some push and it help up. oh- also make sure of your belt size! Third times a charm.
S**R
Works well on 2003 ChevyTrailblazer 4.2L Vortec
Installation was simple. The old part was accessible for clearance. Removal time: 20 minutes on a cool engine and serpentine belt reinstallation, but your time may vary.
D**E
Exact replacement
Exact fit, 2009 Colorado 3.7L
M**.
Superb
Fits perfect, OEM replacement. Easy to put in and works like a charm
A**S
Producto bien empacado
Producto en buen estado, llevo poco meses con el y es funcional.
L**U
courroie
Bonne pièce et livraison rapide
J**Y
The product works really well
Good quality/value. The new design belt tension which in size is a little bigger and thicker feels less vibration when running than the old factory version.
G**L
Fairly easy to install.
I have no complaints, seems to work great.
Trustpilot
2 weeks ago
2 months ago