Electrode Material: Iridium
Thread Size: 0.551"
Thread Reach: 0.708"
Ground Electrode Quantity: 1
Gap: 0.040"
Spark Plug Seat Style: Tapered
Heat Range: 5
Longevity: 40-50k Miles
Shape: Taper Cut
Thread Diameter: 14 mm
Overall Height: ISO
Resistance: 5 kOhm
Insulator Height: 53 mm
Center Electrode Core Material: Copper Core
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Ground Electrode Tip Design: Taper Cut
Insulator Type: Projected
Nominal Gap: 0.040"
Designed for outstanding acceleration, high fuel efficiency, and durability
Ensure a consistently stable spark
Extremely high melting point, perfect for today’s high-tech, high-performance engines
Extremely resistant to heat, corrosion and electrical wear
Match OE fit and quality
0.6 mm laser welded iridium tip
Tapered ground electrode
Manufactured using triple-gasket sealing process to prevent leakage through the shell
Alumina silicate insulator for strength and optimal heat transfer
Cold-rolled threads for easier removal and installation
Corrugated ribs eliminate misfire causing “flashover”
Trivalent metal plating
Last 40 to 50 thousand miles
Compatible with Chevrolet
Compatible with Eagle
Compatible with Ford
Compatible with GMC
Compatible with Isuzu
Compatible with Mazda
Compatible with Mercedes-Benz
Compatible with Mercury
Compatible with Merkur
Compatible with Peugeot
Compatible with Pontiac
Compatible with Renault
| MPN | 7397 |
| OEM # | TR5IX TR 5 IX NGK Iridium Resistor 7397 |
| Other # | 7397-4K 7397 |
| Details | Please review the pictures listed to ensure this is the exact part you need. |
| We recommend you check with your dealer for exact fitment for your specific vehicle. | |
| Notes |
Our return policy is fairly simple and very up front.
If you make an error and buy the wrong item or change your mind, you are responsible for paying for the return shipping costs and may be charged a restock fee that is equivalent to the original shipping cost. Please contact us prior to making a return and we can let you know what the restock fee will be and if it will be charged.
Most items can be returned within 30 days of receipt of shipment in most cases.
Your recommended responsibility on making a return:
If you are sending the item within the United States and the order is valued at $100 or more, insure the shipment for the value of the merchandise and ship your return with a signature shipping service. Items valued over $35 must be returned to the All World Auto with a trackable shipping service. For items below $35, we suggest USPS delivery confirmation service. If a package doesn't arrive and you don't use a trackable method to return or if you refuse the shipment as a method of return, we may not be able to cover your return.
Items typically ship the same day as ordered but always within 1 business day after the order is placed. Please note that weekends and holidays are not business days.