Dayco 89258 Accessory Drive Belt Tensioner Assembly
Steel Locator Pin (Where The Application Demands) Heavy Duty Cast Aluminum Spring Case That Resists Cracking And Fatigue Heavy Duty Cast Aluminum Arm Offers Additional Strength And Less Distortion Steel Pivot Tube (Where The Application Demands) Provides Additional Strength For Critical Torque Requirements Thermoplastic Rubber Spring Slot Plug (Where Applicable) Helps Keep Out Harmful Contaminants Lubricated Nylon Pivot Tube Bushing And Spring Bushing For Quieter Performance Rubber "O" Ring Which Seals Against Dust And Grime (Where Applicable) Zinc-Coated Mounting Bolt That Resists Rust Limited 90 Day Warranty
Specifications
Belt Type - Serpentine
Maximum Belt Width - OEM
Number Of Pulleys - 1
Pulley Diameter - OEM
Pulley Groove Count - No Groove
Pulley Material - Glass Filled Polymer
Pulley Width - OEM
Serpentine belt drives consist of a single belt that powers most if not all of the engine’s accessories. Designed to maintain constant tension on serpentine belt drives the Dayco Automatic Belt Tensioner features the original flat spring design engineered to provide less operating range variations in tension. This innovative design reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed and lessens the risk of belt noise and slippage or poor accessory performance caused by low tension after the belt begins to stretch and wear. A PTFE strip wound within the spring resists abrasion and the flat spring is coated to resist rust.
This Fits
| Year | Make | Model |
|---|---|---|
| 2004-2007 | Buick | Rainier |
| 2002-2008 | Cadillac | Escalade |
| 2003-2008 | Cadillac | Escalade ESV |
| 2002-2008 | Cadillac | Escalade EXT |
| 2007-2008 | Chevrolet | Avalanche |
| 2002-2006 | Chevrolet | Avalanche 1500 |
| 2003-2008 | Chevrolet | Express 1500 |
| 2003-2008 | Chevrolet | Express 2500 |
| 2003-2008 | Chevrolet | Express 3500 |
| 1999-2008 | Chevrolet | Silverado 1500 |
| 2007-2007 | Chevrolet | Silverado 1500 Classic |
| 2001-2003 | Chevrolet | Silverado 1500 HD |
| 2005-2006 | Chevrolet | Silverado 1500 HD |
| 2007-2007 | Chevrolet | Silverado 1500 HD Classic |
| 1999-2004 | Chevrolet | Silverado 2500 |
| 2001-2008 | Chevrolet | Silverado 2500 HD |
| 2001-2006 | Chevrolet | Silverado 3500 |
| 2007-2007 | Chevrolet | Silverado 3500 Classic |
| 2007-2008 | Chevrolet | Silverado 3500 HD |
| 2003-2006 | Chevrolet | SSR |
| 2000-2008 | Chevrolet | Suburban 1500 |
| 2000-2008 | Chevrolet | Suburban 2500 |
| 2000-2008 | Chevrolet | Tahoe |
| 2006-2009 | Chevrolet | Trailblazer |
| 2003-2006 | Chevrolet | Trailblazer EXT |
| 2005-2008 | GMC | Envoy |
| 2003-2006 | GMC | Envoy XL |
| 2004-2005 | GMC | Envoy XUV |
| 2003-2008 | GMC | Savana 1500 |
| 2003-2008 | GMC | Savana 2500 |
| 2003-2008 | GMC | Savana 3500 |
| 1999-2008 | GMC | Sierra 1500 |
| 2007-2007 | GMC | Sierra 1500 Classic |
| 2001-2003 | GMC | Sierra 1500 HD |
| 2005-2006 | GMC | Sierra 1500 HD |
| 2007-2007 | GMC | Sierra 1500 HD Classic |
| 1999-2004 | GMC | Sierra 2500 |
| 2001-2008 | GMC | Sierra 2500 HD |
| 2001-2006 | GMC | Sierra 3500 |
| 2007-2007 | GMC | Sierra 3500 Classic |
| 2007-2008 | GMC | Sierra 3500 HD |
| 2000-2008 | GMC | Yukon |
| 2000-2008 | GMC | Yukon XL 1500 |
| 2000-2008 | GMC | Yukon XL 2500 |
| 2003-2008 | Hummer | H2 |
| 2003-2006 | Isuzu | Ascender |
| 2005-2009 | Saab | 9-7x |
