Dayco 89257 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 - 2
Pulley Diameter - OEM
Pulley Groove Count - 6
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 |
|---|---|---|
| 2003-2003 | Ford | E-350 Club Wagon |
| 1998-1998 | Ford | E-350 Econoline |
| 1998-2002 | Ford | E-350 Econoline Club Wagon |
| 1999-2003 | Ford | E-350 Super Duty |
| 2000-2002 | Ford | E-450 Econoline Super Duty |
| 2003-2003 | Ford | E-450 Super Duty |
| 2002-2002 | Ford | E-550 Econoline Super Duty |
| 2003-2003 | Ford | E-550 Super Duty |
| 1998-1999 | Ford | Econoline Super Duty |
| 2000-2003 | Ford | Excursion |
| 1999-2003 | Ford | F-250 Super Duty |
| 1999-2003 | Ford | F-350 Super Duty |
| 1999-2003 | Ford | F-450 Super Duty |
| 1999-2003 | Ford | F-550 Super Duty |
