Bosch H8DC Super Spark Plug 14mm Heat Range 8

The Bosch H8DC Super Spark Plug is a heavy-duty ignition component featuring advanced construction for reliable engine performance. This is a non-resistor spark plug with heat range 8, making it well-suited for higher-temperature operating conditions and urban driving applications.

Key Features:

• Yttrium-enhanced center electrode with copper core for superior reliability and durability
• Tapered cut nickel chromium ground electrode assists in cold weather starts and provides increased ignitability
• Nickel-plated rolled threads provide anti-seize and corrosion protection
• Angular 5-rib insulator design prevents flashover
• 14mm thread diameter with 1.25mm pitch and tapered seat design
• 17.5mm (.689") reach with 5/8" (16mm) hex size
• Projected nickel center electrode configuration

Torque Specifications: Cast iron heads: 15-29 lb-ft; Aluminum heads: 8-14 lb-ft. This spark plug is pre-gapped at the factory and should be checked against manufacturer specifications before installation. Also known by Bosch part numbers 0241229617-076 and 7570.