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Spark Plug, Flat Seat, 12.00mm Thread, 1.043 in. Reach, Iridium Tip, Copper Core, Projected, Heat Range 9, BMW, Each
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Estimated Ship Date: Dec 9, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
D640-0001
Part Type:
Product Line:
Summit Racing Part Number:
DNN-D640-0001
Item Number:
8611689
UPC:
810065216687
Spark Plug Thread Size:
12mm
Spark Plug Reach (in.):
1.043 in.
Spark Plug Reach (mm):
26.50mm
Spark Plug Seat Style:
Flat
Manufacturer Heat Range:
9
Shorty Spark Plug:
No
Resistor:
No
Electrode Tip Material:
Iridium
Electrode Core Material:
Copper
Center Electrode Type:
Projected
Wrench Diameter:
14mm
Quantity:
Sold individually.
Dinan Spark Plugs
Engineered for enthusiasts who demand more from their BMW, Dinan spark plugs deliver premium ignition performance, enhanced durability, and consistent spark energy across stock, tuned, and high-performance applications. Featuring advanced iridium electrode technology and optimized heat management, these spark plugs promote efficient combustion, improved throttle response, and reliable operation under elevated boost and cylinder pressures. Trusted by performance drivers and engineered to complement the complete Dinan ecosystem, they provide the precision and confidence needed to unlock your engine's full potential. Select the spark plugs your vehicle platform requires to ignite performance the Dinan way.
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