5.0 · 8 reviews
SKU: APP5143

Double Platinum Spark Plug (APP5143): Enhanced Durability & Performance

$7.49
FREE delivery
Description

ABOUT THIS PRODUCT

Autolite Double Platinum spark plugs are engineered for exceptional durability and performance, featuring a platinum-to-platinum design that minimizes gap erosion and reduces misfires for a longer service life. Ideal for distributor-less ignition system (DIS) engines, these spark plugs outperform copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure, while the high alumina ceramic insulator optimizes thermal conductivity and dielectric strength. A multi-rib insulator prevents flash-over, ensuring reliable ignition performance. With a long projection center electrode and tapered seat type, these spark plugs are designed for precision and efficiency. Proudly engineered in the USA with over 100 years of expertise and a proven track record of over 11 billion plugs sold, Autolite continues to set the benchmark in spark plug technology. Whether you're seeking enhanced durability or superior ignition performance, these spark plugs deliver unmatched value and reliability.

Product Features:
  • Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
  • The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
  • Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
  • The multi-rib insulator prevents flash-over.
  • Engineered in the USA: Designed and engineered with over 100 years of expertise, ensuring high-quality and reliable performance.
  • Proven Track Record: With more than 11 billion plugs sold, Autolite continues to set the standard in spark plug technology.
Specifications
Brand
Autolite (253)
SKU
APP5143
Product type
Automotive
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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

5.0

Based on 8 reviews

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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.

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.

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