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Bosch 9750 Spark Plug
| Brand | Bosch 9750 |
|---|---|
| Resistance | 6000 |
| Ground Electrode Tip Design | Standard |
| Ground Configuration | J-gap |
| Ground Electrode Core Material | Copper |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | .95 |
| Ground Electrode Quantity | 1 |
| Hex Size | 14 |
| Manufacturer Heat Range | 8 |
| Seat Type | Flat |
| Reach | 26.5 |
| Insulator Material | Ceramic |
| Resistor Type | Yes |
| Ground Electrode Tip Material | Nickel |
| Hex Type | Bi-hex |
| Center Electrode Design | Fine wire |
| 9746 | No |
| Automotive Item Weight (lbs) | 0.088185 lb |
| Insulator Type | Projected |
| Outdoor Power Equipment Application | No |
| Package Contents | Spark plug |
| Package Quantity | 1 |
| Product Length | 3.32874 in |
| Product Width | 0.669291 in |
| Resistor | Yes |
| Short Style | No |
| Spark Plug Type | 4-cycle |
| Thread Diameter (Spark Plug) | 12 mm |
| Product line | OE Fine Wire Iridium |
| Fits | Mini · 3 vehicles |
OE Fine Wire Iridium. OE-style spark plug technology with an ultra-fine iridium firing pin.
Fine-wire iridium design. Promotes strong performance and long service life.
Resistor spark plug. Helps reduce electrical noise in the ignition system.
Bosch OE Fine Wire Iridium Spark Plug 9750
Bosch 9750 is an OE Fine Wire Iridium spark plug built for precise ignition performance and extended service life. It is a direct-fit ignition component for 2007-2009 Mini Cooper applications listed below, including OE Fine Wire Iridium coverage for the Mini Cooper platform.
Key Features
- Fine wire iridium center electrode for consistent spark delivery
- Copper core construction in the center and ground electrodes
- Resistor design with 6000 ohms resistance
- Projected ceramic insulator for OE-style combustion chamber placement
- Flat seat, 12 mm thread diameter, 14 mm hex size, and 26.5 mm reach
- J-gap ground configuration with a single ground electrode
- Pre-gapped to .95 for straightforward service replacement
Product Details
The Bosch OE Fine Wire Iridium line focuses on OE-level ignition control with an ultra-fine iridium firing pin at the center electrode. That design supports stable spark initiation and efficient combustion, while the nickel ground tip and copper core construction help maintain dependable electrical transfer. Bosch 9750 is a practical choice for drivers servicing a Mini Cooper spark plug replacement and looking for an OE-style iridium plug with the correct thread, seat, and reach specifications.
Fits 2007-2009 Mini Cooper, N/A. This Bosch 9750 spark plug is also a strong search match for Mini Cooper iridium spark plug replacement and Bosch 9750 OE Fine Wire Iridium applications.
Common Issues This Part Can Help Address
- Hard starting caused by worn or fouled spark plugs
- Rough idle from inconsistent ignition firing
- Misfire symptoms related to degraded plug electrodes
- Reduced throttle response from weak spark delivery
- Maintenance replacement for aging OE spark plugs
Installation Notes and Tips
Verify the 12 mm thread diameter, 26.5 mm reach, flat seat, and 14 mm hex size before installation. Check the plug gap against the engine specification even though the plug is pre-gapped, and install to the manufacturer’s torque specification for the vehicle. Inspect ignition coils and plug wells during service to help prevent repeat misfire concerns.
Quality Assurance
Bosch OE Fine Wire Iridium spark plugs are engineered around OE spark plug technology and built for long service life in normal maintenance intervals. Bosch 9750 follows the listed electrical and dimensional specifications for the confirmed Mini Cooper fitment.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2009 | Mini | Cooper | 1.6L | L4 | OE Fine Wire Iridium |
| 2008 | Mini | Cooper | 1.6L | L4 | OE Fine Wire Iridium |
| 2007 | Mini | Cooper | 1.6L | L4 | OE Fine Wire Iridium |
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