Bosch 9747 Spark Plug

Bosch OE Fine Wire Iridium Spark Plug 9747

Bosch 9747 is an OE Fine Wire Iridium spark plug built for precise ignition performance and extended service life. It is a direct choice for drivers servicing Mini Cooper, Mini Cooper Countryman, and Mini Cooper Paceman models with the specified factory-style plug requirements.

The OE Fine Wire Iridium line focuses on original-equipment style ignition performance with an ultra-fine iridium center electrode firing pin for consistent spark delivery. Bosch 9747 also uses a resistor design, a projected ceramic insulator, and a preset .8 gap, so it arrives ready for the listed applications without adjustment.

Key Features

• OE Fine Wire Iridium design for factory-style ignition performance
• Iridium center electrode tip material for durable spark delivery
• Preset .8 gap; do not gap before installation
• Resistor spark plug with 6000 resistance
• Projected ceramic insulator for stable combustion chamber exposure
• 12 mm thread diameter, 26.5 mm reach, and 14 mm hex size
• Flat seat design with standard ground electrode configuration

Detailed Description

Bosch 9747 is engineered for 2011-2015 Mini Cooper, 2011-2016 Mini Cooper Countryman, and 2013-2016 Mini Cooper Paceman applications listed in the fitment data. The plug uses an iridium center electrode tip with a nickel-ytttrium core and a copper-based ground electrode core, combining OE-style construction with materials selected for stable ignition characteristics. Bosch 9747 is a practical replacement when servicing Mini Cooper spark plug applications that call for the OE Fine Wire Iridium design.

This Bosch OE Fine Wire Iridium spark plug is built around a projected ceramic insulator, standard ground electrode layout, and preset gap specification to match the original equipment style used in the listed Mini models. Bosch 9747 is a direct-fit ignition service part for owners looking for a factory-correct spark plug for Mini Cooper, Mini Cooper Countryman, and Mini Cooper Paceman maintenance.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weakened ignition output
• Misfire conditions related to aged plugs
• Reduced throttle response from inconsistent spark delivery
• Maintenance intervals requiring OE-style spark plug replacement

Installation Notes

• Fits 2011-2015 Mini Cooper, N/A; do not gap, gap is preset
• Fits 2011-2016 Mini Cooper Countryman, N/A; do not gap, gap is preset
• Fits 2013-2016 Mini Cooper Paceman, N/A; do not gap, gap is preset
• Verify engine application against the vehicle’s original spark plug specification before installation
• Use proper spark plug socket and torque procedure for the aluminum cylinder head

Quality Assurance

Bosch is a long-established OE supplier in ignition components, and the OE Fine Wire Iridium line is built to OE-style specifications for consistent service life and performance. Part number 9747 is manufactured to match the listed fitment and preset-gap requirements for the specified Mini applications.