Some deliveries may take a little longer than usual due to regional shipping conditions.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
⚙️ Upgrade your drive, ditch the squeak — tension perfected!
The Dorman 419-100 Accessory Drive Belt Tensioner Assembly is a direct OE replacement designed for select vehicles, engineered to maintain proper belt tension and prevent slipping or wear. Featuring durable construction and including a new bolt and lock washer, it ensures reliable, long-lasting performance backed by over 100 years of automotive expertise.
| ASIN | B002YC8BN0 |
| Best Sellers Rank | #543,506 in Automotive ( See Top 100 in Automotive ) #940 in Automotive Replacement Belt Tensioners |
| Brand | Dorman |
| Customer Reviews | 4.3 4.3 out of 5 stars (409) |
| Date First Available | October 10, 2007 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.37 pounds |
| Item model number | 419-100 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 419-100 |
| Model | 419-100 |
| OEM Part Number | 38103; 45897; 49203; 5897; 89231; GM1413170; SK38103; 8-12456-152-0; 89017309 |
| Position | Center |
| Product Dimensions | 5.8 x 5.1 x 5.1 inches |
J**E
Fits 2001 s10 blazer 4.3 works great!
Works great. Installed on a 01 blazer 4.3. Got rid of squeaking. When i looked at the old one installed i noted it was like clock hands pointing at 7 or 8. New one is like halfway between 6 and 7. I also replaced belt. Comes with new bolt and lock washer which i also used. Great product
T**N
Worked great on my old 2000 S10 LS
Worked great! Looked exactly like the one I replaced which was probably original to the truck. Seems like great quality.
B**S
Perfect fit
As good as OEM for 2001 Chevy Silverado 1500 4.3
M**Z
Ordené otro igual para probar no vaya ser que este tenga defecto pero voy a probar y voy a actualizar mi Review cuando ponga el otro
Z**H
Great deal
Works great!
R**R
Excellent pully
Worked great on my 02 S10 with 4.3 V6
J**S
Great quality
Not ACDelco but just as good for the money. It has been working for over a year now with no issue. It bolted up perfectly and has just the right amount of tension still this long after. I would easily buy this again and recommend it to anyone who needs one.
M**T
Weak spring
Not satisfied with this belt tensioner, it’s spring is week and the belt squeals now and it’s new also. Looks like a well built part but it’s not.3 months old and it’s trashed already the OE part lasted 24 yrs and 150.000 miles but ya get a 30 day warranty I will absolutely not by Dorman parts again there junk.
Trustpilot
4 days ago
2 weeks ago