Bosch 9750 OE Fine Wire Iridium Spark Plug

The Bosch 9750 (ZQR8SI302) OE Fine Wire Iridium Spark Plug delivers advanced original equipment technology engineered for high performance and extended service life. This premium spark plug features an ultra-fine wire iridium center electrode with platinum-iridium tipped ground electrode, providing exceptional ignitability and up to 4 times longer life than standard copper spark plugs.

Key Features:

• Ultra-fine 0.6mm iridium center electrode for superior ignitability and performance
• 360-degree continuous laser-welded center electrode provides exceptional resistance to thermal shock
• Iridium-platinum tipped ground electrode delivers extended service life
• Copper core construction provides broader heat range to resist pre-ignition and fouling
• Ribbed insulator design seals tightly against wire boot to prevent misfires
• Nickel-plated rolled threads offer superior corrosion resistance
• Pre-gapped at factory - no gap adjustment required prior to installation

Specifications: 12mm thread diameter, 26.5mm reach, flat seat, heat range 8, 0.95mm gap, 14mm hex size, projected tip design with ceramic insulator. Cross-references to OEM part numbers 12120034677, 12120035933, and 9667005080.