Autolite AR51 Power Tip Spark Plug 13/16 Hex 3/4 Reach Gasket Seat Med
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Autolite Racing spark plugs feature a cut back ground electrode, anti-corrosive nickel plating, and large ground electrode for better heat transfer. Heat range Medium.
- Power Tip (Projected Tip)
- 14 mm plug
- 3/4" reach
- 13/16" hex
- Gasket seat
- Vendor Number: AR51
Note: Please use the Vendor Number to reference the PDF chart links listed.
Heat Range Chart (PDF)
Racing Plug Tech Note (PDF)
Understanding Heat Range (PDF)
Vendor Part Number AR51
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