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Hayden 5031 Accessory Drive Belt Idler Pulley
| Brand | Hayden 5031 |
|---|---|
| Belt Type | Back Idler |
| Belt Width IN | 1.000 |
| Belt Width MM | 25.400 |
| Bore Dia. IN | .354 |
| Color | Black |
| Description | Idler / Tensioner Pulley |
| Groove Quantity | Smooth |
| I.D. MM | 7.9375 |
| Inside Diameter | 1.06 |
| Material | Plastic |
| Meets / Exceeds OEM? | Yes |
| Mount Hole Qty | 1 |
| Mounting Hardware? | Not Included |
| O.D. MM | 88.900 |
| Outside Diameter | 3.500 |
| Pulley Type | Back Idler |
| Pulley Width IN | 1.062 |
| Pulley Width MM | 27 |
| Style | Idler / Tensioner Pulley |
| Type | Pulley |
| Width | 25 |
| Product line | Pulley |
| Fits | Volkswagen · 2 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.
Plastic construction. Lightweight black pulley for smooth belt operation.
Idler / tensioner pulley. Keeps the accessory drive belt properly guided and tensioned.
Cross-references DENSO Auto Parts 5031, Four Seasons 45031 and URO 074145278E for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Hayden 5031 Accessory Drive Belt Idler Pulley
The Hayden 5031 is a back idler accessory drive belt pulley built for smooth belt routing and stable belt tracking. It is a black plastic idler/tensioner pulley with a 3.500-inch outside diameter and a 1.000-inch belt width, made to meet or exceed OEM requirements.
Compatible with 1994-1995 Volkswagen EuroVan applications that use a 3-1/4-inch diameter smooth pulley, this Hayden pulley supports proper accessory drive belt operation on the Volkswagen EuroVan. The Hayden pulley line focuses on direct-fit pulley service parts for belt system repair, and part number 5031 is listed for OE-style replacement use.
Key Features
- Accessory drive belt idler pulley / tensioner pulley
- Back idler, smooth groove design
- Black plastic construction
- 3.500-inch outside diameter
- 1.000-inch belt width
- 1 mounting hole design
- Meets or exceeds OEM specifications
- Cross-reference part number: Four Seasons 45031
Detailed Description
Hayden 5031 is an accessory drive belt idler pulley designed for belt routing in the engine accessory drive system. Its smooth, back-idler style helps maintain belt alignment where a non-grooved pulley is required, while the 1.06-inch inside diameter and .354-inch bore diameter support proper mounting fitment. This pulley is specified for 1994-1995 Volkswagen EuroVan models with a 3-1/4-inch diameter smooth pulley, making it a direct replacement choice for Volkswagen EuroVan belt system service. The Hayden 5031 part number is also referenced across related aftermarket listings for the same application.
Common Problems This Part Can Address
- Noise from a worn or rough idler pulley bearing surface
- Belt tracking issues caused by pulley wear
- Accessory drive belt vibration or flutter
- Visible pulley damage, cracking, or deformation
- Improper belt routing at the back idler position
Installation Notes and Tips
Verify pulley diameter, belt width, and mounting style before installation. This pulley uses one mounting hole and mounting hardware is not included. Confirm the vehicle uses a smooth back-idler pulley configuration before replacing the original part. For 1994-1995 Volkswagen EuroVan service, match the existing pulley dimensions and belt path to the Hayden 5031 specification.
Quality Assurance
Hayden lists this pulley as meeting or exceeding OEM requirements, supporting OE-style replacement standards for accessory drive belt service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1995 | Volkswagen | EuroVan | N/A | w/ 3-1/4" Dia. Smooth Pulley; Pulley |
| 1994 | Volkswagen | EuroVan | N/A | w/ 3-1/4" Dia. Smooth Pulley; Pulley |
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