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Bosch SR4240N Starter
| Brand | Bosch SR4240N |
|---|---|
| Voltage | 12 |
| Power Rating | 1.4 |
| Mounting Bolt Hole Quantity | 2 |
| Mounting Flange to End of Case | 72.6 |
| Mounting Flange to Pinion End at Rest | 22.53 |
| Case Grounding | Grounded case |
| Nose Cone Material | Aluminum |
| Starter Rotation | Clockwise (right) |
| Mounting Hardware Included | No |
| Mounting Shims Included | No |
| Solenoid Attached | Yes |
| Housing Material | Aluminum |
| Re-Clockable Flange | No |
| Tooth Quantity | 11 |
| Mounting Type | Flange |
| Over-Crank Protection | No |
| Designed for Automatic Start / Stop Operation | Yes |
| Automotive Item Weight (lbs) | 6.283174 lb |
| New Or Remanufactured | New |
| Nose Cone Type | Pad mount |
| Product Length | 7.913386 in |
| Product line | Starter (New) |
| Fits | Mazda · 6 vehicles |
New starter. Replacement unit built for dependable starting performance.
Integrated solenoid. Simplifies the starter assembly with fewer separate components.
Aluminum construction. Lightweight housing and nose cone for durable fitment.
Cross-references LF8J18400B for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Starter for Mazda 3 Applications
Bosch Starter SR4240N is a new 12-volt starter built for reliable cranking performance. It is a direct replacement style unit with a grounded case, integrated solenoid, and clockwise rotation for the specified Mazda applications.
Key Features
- 12-volt starter with a 1.4 power rating.
- New unit with integrated solenoid for simplified replacement.
- Aluminum housing and aluminum nose cone for durable construction.
- Clockwise rotation with 11-tooth drive.
- Designed for automatic start/stop operation.
- Flange-mount design with two mounting bolt holes.
Detailed Description
Bosch SR4240N is a new starter engineered for dependable starting performance in 2010-2012 Mazda 3 and 2010-2012 Mazda 3 Sport applications. The grounded-case design, pad-mount nose cone, and flange mounting layout support proper installation in the intended starting system. Bosch Premium Starters are designed, built, and tested for performance and reliability, and this SR4240N unit follows that approach with a new construction and integrated solenoid.
The Bosch Starter line focuses on replacement starters built to meet the demands of modern electrical systems. For buyers searching for a Mazda 3 starter or Mazda 3 Sport starter, SR4240N provides the key fitment and configuration details needed to match the original application. The part number SR4240N is also referenced as LF8J18400B for the same application.
What It Helps Solve
- Slow or weak engine cranking.
- No-start conditions caused by starter failure.
- Intermittent starting caused by worn internal starter components.
- Noise or engagement issues from an incorrect starter configuration.
Installation Notes and Quality
Verify voltage, rotation, mounting style, tooth count, and case configuration before installation. This starter does not include mounting hardware or shims. It is designed for automatic start/stop operation and uses a flange mount with two bolt holes. Bosch Premium Starters are designed, built, and tested to provide performance and reliability.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2012 | Mazda | 3 | 2.0L | L4 | Starter (New) |
| 2012 | Mazda | 3 Sport | 2.0L | L4 | Starter (New) |
| 2011 | Mazda | 3 | 2.0L | L4 | Starter (New) |
| 2011 | Mazda | 3 Sport | 2.0L | L4 | Starter (New) |
| 2010 | Mazda | 3 | 2.0L | L4 | Starter (New) |
| 2010 | Mazda | 3 Sport | 2.0L | L4 | Starter (New) |
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