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
-
R
-
S
HKS
HKS Super Fire Racing M40i Iridium Spark Plug - Heat Range 8 (ISO Type)
$27.00
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
The HKS Super Fire Racing M40i is a high-performance Iridium spark plug engineered for tuned engines and demanding driving conditions. Designed to replace factory plugs, the M-series provides increased durability and improved ignition performance across the entire RPM range. The M40i features an ISO-type fitment and a heat range equivalent to 8, making it an ideal choice for vehicles requiring a colder plug to prevent pre-ignition in high-load scenarios.
- 0.6mm Iridium Alloy Center Electrode: Reduces voltage requirements and improves ignition performance.
- Platinum Square Chip: The outer electrode features a platinum chip that improves durability and provides a long service life under extreme conditions.
- Anti-Fouling Design: The insulator and electrode shape are optimized to reduce carbon buildup.
- Nickel Plating: Provides superior corrosion resistance even in harsh environments.
- Shortened Outer Electrode: Increases resistance against vibration and thermal stress.
- Part Number: HKS M40i (ISO Type)
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.
HKS Super Fire Racing M40i Iridium Spark Plug - Heat Range 8 (ISO Type)
$27.00
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
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 of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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:
$27.00
$27.00
$27.00
The HKS Super Fire Racing M40i is a high-performance Iridium spark plug engineered for tuned engines and demanding driving conditions. Designed to replace factory plugs, the M-series provides increased durability and improved ignition performance across the entire RPM range. The M40i features an ISO-type fitment and a heat range equivalent to 8, making it an ideal choice for vehicles requiring a colder plug to prevent pre-ignition in high-load scenarios.
- 0.6mm Iridium Alloy Center Electrode: Reduces voltage requirements and improves ignition performance.
- Platinum Square Chip: The outer electrode features a platinum chip that improves durability and provides a long service life under extreme conditions.
- Anti-Fouling Design: The insulator and electrode shape are optimized to reduce carbon buildup.
- Nickel Plating: Provides superior corrosion resistance even in harsh environments.
- Shortened Outer Electrode: Increases resistance against vibration and thermal stress.
- Part Number: HKS M40i (ISO Type)
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.
