4.8 · 10 reviews
SKU: AR3910X

Racing Non-Resistor Spark Plug: Superior Performance for Racing Conditions

$8.99
FREE delivery
Description

ABOUT THIS PRODUCT

Autolite Racing spark plugs are meticulously crafted to deliver peak performance under the most demanding racing conditions. Featuring a cut-back ground electrode, these plugs ensure optimal ignitability and superior heat transfer for quicker starts and maximum engine efficiency. The yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making them ideal for colder heat ranges and performance modifications. Designed with anti-corrosive nickel plating, they resist rust better than black oxide, ensuring long-lasting durability. The high alumina multi-rib ceramic insulator provides exceptional thermal conductivity and insulation, preventing flash-over and enhancing strength. With a surface gap design, these spark plugs boost compression ratios for superior racing performance. Engineered to operate extremely cold, they are nearly impervious to pre-ignition, delivering consistent reliability even in the presence of fouling deposits. Built for durability and precision, Autolite Racing spark plugs are the ultimate choice for racers seeking unmatched performance and dependability on the track.

Product Features:
  • Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
  • The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
  • Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
  • Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
  • Enhanced Performance: The Autolite Racing Non-Resistor Spark Plug features a surface gap design that increases the Compression Ratio, delivering superior performance in racing conditions.
  • Durable Under Intense Conditions: Engineered to handle extreme conditions, this spark plug operates extremely cold, making it nearly impervious to pre-ignition.
  • Consistent Performance: Despite the presence of fouling deposits, the Autolite Racing Non-Resistor Spark Plug maintains reliable performance, ensuring your engine runs smoothly.
Specifications
Brand
Autolite (253)
SKU
AR3910X
Product type
Automotive
Guides & Resources
User Guide
Returns Policy
Shipping Information

Free shipping on all orders. Most items ship next business day after your order is placed.

Returns Policy

Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

View full returns policy

Customer Reviews

4.8

Based on 10 reviews

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42
30
20
10
R
Riley N. Verified Buyer
06/08/2025

No complaints

Quick delivery and the product exceeded my expectations.

M
Maria K. Verified Buyer
08/17/2025

Would buy again

Does what it is supposed to do. Happy with this purchase.

T
Ted R. Verified Buyer
02/03/2025

Works perfectly

Setup was simple and it has worked reliably since day one.

P
Pat M. Verified Buyer
11/28/2025

Better than expected

Reliable product and smooth buying experience on this site.

C
Chris W. Verified Buyer
07/05/2025

Highly recommend

Good experience overall from checkout to delivery.

J
Jordan L. Verified Buyer
04/15/2025

Very happy with this

Packaging was secure and the item was in perfect condition.

E
Emma S. Verified Buyer
12/14/2025

Exactly what I needed

Easy to order and arrived quickly. Product matched the listing and works great.

D
Dana H. Verified Buyer
10/02/2025

Solid purchase

Quality feels premium and it fits my needs well.

A
Alex P. Verified Buyer
01/09/2025

Fast shipping too

Impressed with the quality for the price. Will be back for more.

S
Sam T. Verified Buyer
03/22/2025

Great quality

Exactly as described. Good value and I would order again.

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