Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Your cart
-
0-9
-
A
-
B
-
R
-
S
NGK
NGK Iridium Racing Spark Plugs R7438-8 (MPN 4905) - Set of 4
$610.88
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
NGK Iridium Racing spark plugs (R7438-8) are engineered to withstand the extreme cylinder pressures and high thermal loads found in professional motorsport and high-performance tuning applications. Designed for durability and consistent ignitability, these plugs utilize specialized center electrode configurations to ensure a reliable spark under the most grueling racing conditions. The trivalent metal plating provides superior anti-corrosion and anti-seizing properties, protecting your cylinder head threads during frequent plug changes.
- Iridium Center Electrode: Engineered for high melting points and maximum conductivity to maintain a stable spark.
- Trivalent Metal Plating: Delivers exceptional anti-seizing and anti-corrosion protection for easier installation and removal.
- Pure Alumina Silicate Ceramic: A high-grade insulator that provides superior structural strength and optimal heat transfer.
- Copper Core: Assists in rapid heat dissipation to prevent pre-ignition and electrode overheating.
- Triple Seals: Ensures combustion gases cannot leak past the shell, maintaining engine compression.
This set includes four individual spark plugs. Manufacturer Part Number: 4905.
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
NGK Iridium Racing Spark Plugs R7438-8 (MPN 4905) - Set of 4
$610.88
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
$610.88
$610.88
$610.88
NGK Iridium Racing spark plugs (R7438-8) are engineered to withstand the extreme cylinder pressures and high thermal loads found in professional motorsport and high-performance tuning applications. Designed for durability and consistent ignitability, these plugs utilize specialized center electrode configurations to ensure a reliable spark under the most grueling racing conditions. The trivalent metal plating provides superior anti-corrosion and anti-seizing properties, protecting your cylinder head threads during frequent plug changes.
- Iridium Center Electrode: Engineered for high melting points and maximum conductivity to maintain a stable spark.
- Trivalent Metal Plating: Delivers exceptional anti-seizing and anti-corrosion protection for easier installation and removal.
- Pure Alumina Silicate Ceramic: A high-grade insulator that provides superior structural strength and optimal heat transfer.
- Copper Core: Assists in rapid heat dissipation to prevent pre-ignition and electrode overheating.
- Triple Seals: Ensures combustion gases cannot leak past the shell, maintaining engine compression.
This set includes four individual spark plugs. Manufacturer Part Number: 4905.
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.
