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Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach
Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach

Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach

Universal Fit, Gasket Spark Plug Seat Style, Gasket Seat Taper, 0.75" Spark Plug Reach

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Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach
Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach
Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach
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Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach
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Part # 3733911
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Details

Spark Plug Seat Style:
Gasket
Seat Taper:
Gasket
Spark Plug Reach:
0.75"
Thread Pitch:
14mm
Insulator Type:
Projected
Resistor:
No
Spark Plug Heat Range:
4
Core Material:
Copper
Tip Material:
Nickel Alloy
MFG. Part #:
AR3911
Overall Length:
14.00"
Wrench Size:
5/8"
Sold in Quantity:
Each
GTIN Code:
00009100017826

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 Colder. 

  • 14 mm plug
  • .75" reach
  • 5/8" hex
  • Gasket seat
  • Non-resistor
  • Vendor Number: AR3911

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)

Autolite Cross Reference Chart (PDF)

Item Details

Colder
Power Tip
Vendor Part Number AR3911

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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