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Gates 37011P Alternator Decoupler Pulley
| Brand | Gates 37011P |
|---|---|
| Material | Steel |
| Groove Quantity | 6 |
| Installation Tools Requirements | 91024-1 |
| Flanged | Yes |
| Width | 37.5 |
| Outside Diameter | 55.5 |
| Bore Diameter | 14.5 |
| Contact Surface | V-ribbed grooved |
| Contents | Pulley, dust cap |
| Description | One-way clutch decoupler pulley |
| OE Comparison Rating | Oe exact |
| Required Tool Part Number | 91024-1 |
| Product line | Decoupler Pulley |
| Fits | Mercedes-Benz · 2 vehicles |
OE exact replacement. Built to match the specified application with direct-fit service characteristics.
Vibration isolation. Helps reduce accessory belt drive shake during engine deceleration.
Steel construction. Uses a flanged, 6-groove V-ribbed design for stable belt engagement.
Cross-references Gates 37011P, Litens 930001A and Wix 49701 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Alternator Decoupler Pulley Overview
The Gates 37011P is a decoupler pulley for the charging system, built to let the alternator overrun during engine deceleration and reduce vibration in the accessory belt drive. It is an OE-exact replacement with a steel construction and V-ribbed grooved contact surface for consistent belt engagement.
Fits 1996-1997 Mercedes-Benz E300, N/A. This part number is 37011P.
Key Features
- One-way clutch decoupler pulley design for controlled alternator free-wheeling.
- Steel construction with a flanged design for stable operation.
- V-ribbed grooved contact surface with 6 grooves.
- OE exact comparison rating for direct replacement use.
- Includes pulley and dust cap.
Detailed Description
Gates DriveAlign decoupler pulleys are engineered to isolate vibration in the accessory belt system while the engine slows down, helping the alternator rotate more smoothly through changing load conditions. The 37011P uses a one-way clutch design rather than a standard pulley, and the DriveAlign line separates decoupler pulleys from one-way clutches because they are not interchangeable. For Mercedes-Benz E300 applications, this part number 37011P matches the specified fitment and requires the listed installation tool for proper service.
The Gates 37011P is a practical choice when replacing a worn alternator decoupler pulley on a Mercedes-Benz E300. Its OE-exact rating, steel body, and grooved belt contact surface support consistent belt tracking and charging-system operation.
What It Is Used For
- Eliminating alternator pulley noise caused by wear or internal clutch failure.
- Reducing belt vibration in the accessory drive system.
- Restoring smooth alternator overrunning during deceleration.
- Addressing belt wear linked to a seized or slipping decoupler pulley.
- Correcting charging-system drivability issues tied to pulley malfunction.
Installation Notes and Tips
Fitment is listed for 1996-1997 Mercedes-Benz E300, N/A. The required tool part number is 91024-1, and the product notes specify that an installation tool is required for proper fitment. Verify pulley style before installation, since Gates notes that overrunning alternator decoupler pulleys and one-way clutches are not interchangeable.
Quality Assurance
Gates identifies this part as OE exact, and the DriveAlign line is built for charging-system service where vibration control and belt life matter. Confirm the part number 37011P and the required tool specification before installation.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 1997 | Mercedes-Benz | E300 | 3.0L | L6 | DIESEL | Installation tool required for proper fitment.; Decoupler Pulley |
| 1996 | Mercedes-Benz | E300 | 3.0L | L6 | DIESEL | Installation tool required for proper fitment.; Decoupler Pulley |
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