NGK 97506 Laser Iridium Spark Plug M12x1.25 Thread 27.5 mm Reach

Regular price: $83.95
Regular price
Sale price: $83.95

Shipping calculated at checkout.

In Stock: 269

Orders by 1pm PST ship same business day

Free Shipping w/3-4 Day Delivery

Authorized Dealer

Fitment Guarantee

30-Day Hassle Free Returns

Product Specification:

SKU:NGK97506

MPN: 97506

UPC: 87295975060

Weight: 0.4 lb

Inventory: 269

Type: Spark Plugs

Vehicle Fitment

Fits select performance turbo petrol engines (not limited to one make/model); verify engine code and requirement before use.

Features

Laser Iridium centre electrode for enhanced durability and ignitability
Thread size: M12 x 1.25 mm with approximately 27.5 mm reach
Gasket/flat-seat design for secure sealing in the combustion chamber
Resistor-type plug (approx. 5 kΩ) to suppress ignition-interference in modern electronics
Optimised for higher boost, light-methanol or performance applications (colder heat rating than stock in some cases)
14 mm hex size makes installation using standard 12-point socket straightforward
Designed for direct-fit performance replacement - no custom machining required if engine specification matches
Backed by NGK's OE-level manufacturing standards and materials

Specifications

Part Number: 97506
Thread Size: M12 x 1.25 mm
Reach (Thread Length): ~27.5 mm
Seat Type: Flat/gasket seat
Electrode Material: Iridium centre tip
Resistance: Approx. 5 kΩ (resistor version)
Spanner/Hex Size: 14 mm
Use: Performance petrol engines, turbocharged or modified vehicles

Included Components

1x NGK 97506 Laser Iridium spark plug

Product Description

The NGK 97506 spark plug is a high-quality performance replacement designed to meet the requirements of turbocharged or modified petrol engines needing superior ignitability and durability. Featuring an iridium centre electrode and modern construction, it supports efficient combustion, quicker startup, and longer service intervals compared to standard plugs.

With a thread size of M12 x 1.25 mm and an approximate reach of 27.5 mm, this plug is suited to modern high-performance engine architectures. Installation typically involves removing the old plug, verifying thread and seat are correctly matched, torquing to specification, and verifying engine function post-installation.

Because this plug may be "colder" than stock (i.e., designed for higher performance applications), it is important to verify that your engine, boost level, fuel type (e.g., E85), and tuning strategy are compatible. Always check your service manual or tuner guidance before selecting a plug with different heat rating from OEM specification.