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Bosch SR0451N Starter Motor
Reliable Starter for Porsche 911 Vehicles
The Bosch Starter (New) SR0451N is designed specifically for Porsche 911 models, providing dependable engine starting performance. This 12-volt starter features a robust 1.7 kW power rating and a closed aluminum nose cone for durability and efficient operation.
- Voltage: 12V for standard automotive electrical systems
- Power Rating: 1.7 kW to ensure consistent engine cranking
- Mounting Bolt Hole Quantity: 2 for secure installation
- Nose Cone Material: Aluminum with a closed nose design for protection
- Starter Rotation: Counterclockwise to match Porsche 911 engine requirements
- Solenoid Attached: Yes, integrated for streamlined installation
- Tooth Quantity: 11 for proper engagement with the flywheel
- New unit, not remanufactured, ensuring original performance
About the Bosch Starter (New) Product Line
The Bosch Starter (New) line offers brand-new starters engineered to meet or exceed original equipment specifications. This product line focuses on delivering reliable starting solutions with quality materials such as aluminum nose cones and integrated solenoids. The SR0451N starter exemplifies this approach, providing a direct replacement for Porsche 911 vehicles requiring a counterclockwise rotation starter.
Detailed Product Description
The Bosch SR0451N starter is built with a closed aluminum nose cone that protects internal components from debris and environmental exposure. Its 12-volt electrical system and 1.7 kW power rating provide sufficient torque to crank Porsche 911 engines efficiently. The starter features two mounting bolt holes for a secure fit and includes an attached solenoid to simplify installation. With 11 teeth on the pinion gear, it ensures proper meshing with the flywheel, reducing wear and improving engagement reliability.
Common Issues Addressed by This Starter
- Failure to crank or slow engine start in Porsche 911 vehicles
- Intermittent starting problems due to worn or damaged starters
- Starter noise caused by damaged nose cone or pinion gear
- Electrical faults related to solenoid failure
- Replacement of remanufactured or faulty original starters
Installation Notes and Tips
- Ensure compatibility with Porsche 911 models before installation
- Verify the starter rotation is counterclockwise to match engine requirements
- Use existing mounting hardware as this starter does not include bolts or shims
- Check electrical connections and solenoid wiring for secure fit
- Inspect flywheel teeth for wear before installing the new starter
Quality Assurance and Warranty
The Bosch Starter (New) SR0451N is a new, original equipment quality part designed to meet strict manufacturing standards. While specific warranty details should be confirmed at the point of purchase, Bosch products typically come with a limited warranty covering defects in materials and workmanship to ensure reliability and customer confidence.
| Brand | Bosch |
|---|---|
| Part Number | SR0451N |
| Position | Starter (New) |
| Cases Per Pallet (ORLY) | 125 |
| Mounting Bolt Hole Quantity | 2 |
| Mounting Hardware Included | No |
| Mounting Shims Included | No |
| New Or Remanufactured | New |
| Nose Cone Material | Aluminum |
| Nose Cone Type | Closed Nose |
| Original Equipment Manufacturer Names | BO |
| Power Rating | 1.7 |
| Product Length | 11.279528 in |
| Solenoid Attached | Yes |
| Starter Finish | Aluminum |
| Starter Rotation | Counterclockwise |
| Tooth Quantity | 11 |
| Voltage | 12 |
This part fits 33 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2011 | Porsche | 911 | 3.8L | H6 | N/A | Starter (New) | |||
| 2011 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2011 | Porsche | 911 | 4.0L | H6 | N/A | Starter (New) | |||
| 2010 | Porsche | 911 | 3.8L | H6 | N/A | Starter (New) | |||
| 2009 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2008 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2007 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2005 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2004 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2003 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2002 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 2001 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1998 | Porsche | 911 | RWD | Manual | 3.6L | H6 | N/A | Starter (New) | |
| 1998 | Porsche | 911 | AWD | 3.6L | H6 | N/A | Starter (New) | ||
| 1998 | Porsche | 911 | Targa | 3.6L | H6 | N/A | Starter (New) | ||
| 1997 | Porsche | 911 | RWD | Manual | 3.6L | H6 | N/A | Starter (New) | |
| 1997 | Porsche | 911 | AWD | 3.6L | H6 | N/A | Starter (New) | ||
| 1997 | Porsche | 911 | Targa | 3.6L | H6 | N/A | Starter (New) | ||
| 1997 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1996 | Porsche | 911 | Convertible | RWD | Manual | 3.6L | H6 | N/A | Starter (New) |
| 1996 | Porsche | 911 | Coupe | RWD | Manual | 3.6L | H6 | N/A | Starter (New) |
| 1996 | Porsche | 911 | AWD | 3.6L | H6 | N/A | Starter (New) | ||
| 1996 | Porsche | 911 | Targa | 3.6L | H6 | N/A | Starter (New) | ||
| 1996 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1995 | Porsche | 911 | RWD | Manual | 3.6L | H6 | N/A | Starter (New) | |
| 1995 | Porsche | 911 | AWD | 3.6L | H6 | N/A | Starter (New) | ||
| 1994 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1993 | Porsche | 911 | AWD | 3.6L | H6 | N/A | Starter (New) | ||
| 1993 | Porsche | 911 | RWD | Manual | 3.6L | H6 | N/A | Starter (New) | |
| 1993 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1992 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1991 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) | |||
| 1990 | Porsche | 911 | 3.6L | H6 | N/A | Starter (New) |
* 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.