Products to Compare (max of 3)
X
Compare These Parts
America's Oldest Speed Shop ® Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Help Center
Help Center

U.S.Order Line:

800.979.0122

(CST) 7am - 10pm

Race and Rod Tech Support

Mon-Fri 8am - 5pm

Canadian Order Line:

855.313.9180

International Order Line:

1.402.323.3200
Since 1952
Menu
Shop By
Support
Account

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

Specs
Sold in Quantity:
Each
Seat Taper:
Gasket
Wrench Size:
5/8"
MFG. Part #:
AR3911
Overall Length:
14.00
Spark Plug Reach:
.75
GTIN Code:
00009100017826
Autolite AR3911 14mm Racing Spark Plug, 5/8 Hex-Gasket Seat, 3/4 Reach

Click image to enlarge

Details

Reviews (0)

Q & A (1)

What's in the Box

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

Customer Reviews

This product has no reviews.

Product Q&A

1 questions : 1 answers

1 answers

how do gap this type of plug since it has a cut back ground electrode

jimmy
austin tx
February 19, 2016

how do gap this type of plug since it has a cut back ground electrode

Answers

February 22, 2016
Eric
Expert
You can set the gap on these spark plugs in the same manner as standard plugs. Simply use a feeler gauge or spark plug gapping tool to measure the distance between the electrode and ground strap.
Page 1 of 1
Suggestions