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Hayden 5037 Accessory Drive Belt Idler Pulley
| Brand | Hayden 5037 |
|---|---|
| Material | Plastic |
| Color | Black |
| Inside Diameter | 1.38 |
| Groove Quantity | 8 |
| Width | 36.6 |
| Outside Diameter | 5.24 |
| Belt Type | Serpentine |
| Belt Width IN | 1.38 |
| Belt Width MM | 25.4 |
| Bore Dia. IN | .67 |
| Description | Idler / tensioner pulley |
| I.D. MM | 35.0 |
| Meets / Exceeds OEM? | Yes |
| Mount Hole Qty | 1 |
| Mounting Hardware? | Not included |
| O.D. MM | 133.0 |
| Pulley Type | Idler pulley |
| Pulley Width IN | 1.38 |
| Pulley Width MM | 36.1 |
| Style | Idler / tensioner pulley |
| Type | Pulley |
| Fits | — |
OE direct replacement. Meets or exceeds OEM standards for dependable fit and function.
Plastic construction. Lightweight black pulley for serpentine belt systems.
Idler / tensioner pulley. Keeps the accessory drive belt running smoothly.
Cross-references Dayco 89096, DENSO Auto Parts 5037 and Four Seasons 45037 for the same application. See all 9.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Hayden 5037 Idler Pulley Overview
The Hayden 5037 accessory drive belt idler pulley is a black plastic serpentine pulley built for accessory drive belt system service. With an 8-groove design, 5.24-inch outside diameter, and 1.38-inch belt width, it is a direct-fit style replacement for applications that use an idler/tensioner pulley in the serpentine belt path.
Hayden Pulley 5037 is an OE-style replacement that meets or exceeds OEM requirements. It is a practical choice for drivers searching for a serpentine belt idler pulley for Ford F-150, Ford Mustang, and other belt-driven engine accessory systems that use this pulley specification.
Key Features
- Accessory drive belt idler pulley for serpentine belt systems
- Black plastic construction
- 8-groove pulley profile
- 5.24-inch outside diameter and 1.38-inch belt width
- 1.38-inch inside diameter with .67-inch bore diameter
- Single mounting hole design
- Meets or exceeds OEM requirements
- Hayden Pulley 5037 cross-references DENSO Auto Parts 5037 and Four Seasons 45037
Product Details
Hayden 5037 is an idler/tensioner pulley used in the accessory drive belt system to guide the serpentine belt along its routing path. The pulley’s 8-groove layout and 36.1 mm width support common serpentine belt configurations, while the 133.0 mm outside diameter helps maintain proper belt tracking in the engine accessory drive. This part number is commonly searched as Hayden 5037, Pulley 5037, and accessory drive belt idler pulley 5037 for Ford F-150 and Ford Mustang belt system repairs.
This part cross-references DENSO Auto Parts 5037 and Four Seasons 45037 for the same application.
Common Repair Symptoms
- Serpentine belt noise from a worn or rough idler pulley
- Belt tracking issues caused by pulley wear
- Visible pulley damage, cracking, or surface wear
- Accessory drive belt vibration or inconsistent routing
- Replacement need during belt system maintenance on Ford F-150 or Ford Mustang applications
Installation Notes
Verify pulley diameter, groove count, belt width, and bore dimensions before installation. Inspect the serpentine belt, tensioner, and adjacent pulleys for wear at the same time to avoid repeat service. Mounting hardware is not included, so reuse or source the correct hardware as required by the vehicle application.
Quality Assurance
Hayden designs this pulley to meet or exceed OEM specifications for fit and function in accessory drive belt system service. The part is built for OE-style replacement use in serpentine belt applications where correct pulley alignment and groove engagement are critical.
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