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Hayden 5051 Accessory Drive Belt Idler Pulley
Overview of Hayden Pulley Accessory Drive Belt Idler Pulley
The Hayden Pulley 5051 is a steel accessory drive belt idler pulley designed for select Mercedes-Benz models. Engineered to meet or exceed OEM specifications, this pulley ensures reliable serpentine belt tension and alignment for vehicles like the Mercedes-Benz 600SEC, 600SEL, and SL600.
- Constructed from durable steel with a black finish
- Compatible with serpentine belt systems featuring 8 grooves
- Outside diameter of 2.5 inches (63.5 mm) and inside diameter of 1.40 inches
- Width measures 33.5 mm (1.062 inches) for precise belt fitment
- Designed specifically for Mercedes-Benz 600 series models and CL600
- Meets or exceeds OEM quality standards
- Mount hole quantity: 1; mounting hardware not included
Detailed Product Description
The Hayden Pulley 5051 is part of the Pulley brand line, which focuses on high-quality pulley components for accessory drive belt systems. This idler pulley is crafted from steel to provide strength and durability under continuous engine operation. Its black color finish offers corrosion resistance and a professional appearance. The pulley features 8 grooves to accommodate serpentine belts with a width of 1.125 inches (31.75 mm), ensuring proper belt tracking and tension. With an outside diameter of 2.5 inches (63.5 mm) and an inside diameter of 1.40 inches, it fits precisely within the accessory drive system of Mercedes-Benz 600SEC, 600SEL, 600SL, CL600, S600, S600L, and SL600 models.
Common Applications and Issues Addressed
- Restores proper tension and alignment in serpentine belt systems
- Eliminates belt slippage and noise caused by worn or damaged pulleys
- Prevents premature belt wear and potential engine accessory failure
- Replaces OEM idler pulleys that have become seized or noisy
- Supports smooth operation of alternator, power steering, and AC compressor belts
Installation Notes and Tips
- Verify compatibility with your specific Mercedes-Benz model before installation
- Mounting hardware is not included; reuse existing hardware or source appropriate fasteners
- Inspect serpentine belt condition during installation and replace if necessary
- Ensure proper torque specifications are followed to avoid pulley misalignment
- Check belt tension after installation to confirm correct operation
Quality Assurance and Warranty
The Hayden Pulley 5051 meets or exceeds OEM standards for fit, form, and function, providing reliable performance in demanding automotive environments. Manufactured with precision steel materials, this idler pulley is built to withstand the stresses of accessory drive systems. While specific warranty details are not provided, Hayden products typically adhere to industry quality controls to ensure durability and customer satisfaction.
| Brand | Hayden |
| Part Number | 5051 |
| Position | Pulley |
| Belt Type | Serpentine |
| Belt Width IN | 1.125 |
| Belt Width MM | 31.750 |
| Bore Dia. IN | 0.668 |
| Color | Black |
| Description | Idler / Tensioner Pulley |
| Groove Quantity | 8 |
| I.D. MM | 7.9375 |
| Inside Diameter | 1.40 |
| Material | Steel |
| Meets / Exceeds OEM? | Yes |
| Mount Hole Qty | 1 |
| Mounting Hardware? | Not Included |
| O.D. MM | 63.500 |
| Outside Diameter | 2.500 |
| Pulley Type | Idler Pulley |
| Pulley Width IN | 1.062 |
| Pulley Width MM | 26.9 |
| Style | Idler / Tensioner Pulley |
| Type | Pulley |
| Width | 33.5 |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Mercedes-Benz | CL600 | N/A | Pulley |
| 1999 | Mercedes-Benz | S600 | N/A | Pulley |
| 1999 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1998 | Mercedes-Benz | CL600 | N/A | Pulley |
| 1998 | Mercedes-Benz | S600 | N/A | Pulley |
| 1998 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1997 | Mercedes-Benz | S600 | N/A | Pulley |
| 1997 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1996 | Mercedes-Benz | S600 | N/A | Pulley |
| 1996 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1995 | Mercedes-Benz | S600 | N/A | Pulley |
| 1995 | Mercedes-Benz | S600L | N/A | Pulley |
| 1995 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1994 | Mercedes-Benz | S600 | N/A | Pulley |
| 1994 | Mercedes-Benz | SL600 | N/A | Pulley |
| 1993 | Mercedes-Benz | 600SEC | N/A | Pulley |
| 1993 | Mercedes-Benz | 600SEL | N/A | Pulley |
| 1993 | Mercedes-Benz | 600SL | N/A | Pulley |
| 1992 | Mercedes-Benz | 600SEL | N/A | Pulley |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.