E3.90R-9 Racing Spark Plug
Full Description
E3.90R-9 is a 14mm, 0.750” reach plug with a 5/8” hex and a gasket seat. It is built to have a cold heat range, non-resistor, and is used a variety of racing applications. E3 "R-series" racing plugs are fitted with a nickel alloy ground electrode. This allows for excellent heat transfer and an adjustable gap for high compression engines.
CROSS-REFERENCE
Autolite AR3933
NGK 5238, R5671A-9
Specifications
- Part Number:E3.90R-9
- Resistor:NON-Resistor
- Hex Size:5/8"
- Thread Reach:0.75"
- Thread Diameter: 14mm
- Seat: Gasket
- Tip/Gap: Retracted Tip/Single J-wire with adjustable gap
Product Fitment
E3.90R-9 Racing Spark Plug
Sale price$4.99
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