Autolite Racing spark plugs feature a cut back ground electrode, anti-corrosive nickel plating, and large ground electrode for better heat transfer. Heat range needed with Standard tip or Power tip, Hottest. 
14 mm plug. .75" reach. 5/8" hex. Gasket seat. Non-resistor. Set of 8. Vendor Number: AR3934.
Note: Please use the Vendor Number to reference the PDF chart links listed.
Item Details
Hottest
Non-Projected Tip
Vendor Part Number AR3934
Autolite AR3934 Racing Spark Plugs, 3/4 Reach, Hot, Set of 8 Autolite
Autolite AR3934 Racing Spark Plugs, 3/4 Reach, Hot, Set of 8
Sku # 9100119
Mfr. Part # 9100119
Condition
New
Brand
Autolite
Sold
Kit
Details
Info

Autolite Racing spark plugs feature a cut back ground electrode, anti-corrosive nickel plating, and large ground electrode for better heat transfer. Heat range needed with Standard tip or Power tip, Hottest.

  • 14 mm plug
  • .75" reach
  • 5/8" hex
  • Gasket seat
  • Non-resistor
  • Set of 8
  • Vendor Number: AR3934

Note: Please use the Vendor Number to reference the PDF chart links listed.

Item Details

Hottest
Non-Projected Tip
Vendor Part Number AR3934

Application
This Part Fits

Spark Plug Application Chart

Charts

(PDF)

(PDF)

(PDF)

(PDF)

Specs
Sold in Quantity
Kit
Seat Taper
Gasket
Thread Pitch
14mm
Wrench Size
5/8"
Spark Plug Heat Range
4
Core Material
Copper
Tip Material
Nickel Alloy
Resistor
No
Insulator Type
Non-projected
Spark Plug Reach
0.75
Spark Plug Seat Style
Gasket
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 73 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.