Dependable Copper Core Ignition for Everyday Driving
This nickel alloy spark plug delivers proven OE quality performance for engines that call for a standard heat range 8 plug. Built with NGK’s legendary alumina silicate insulator and triple gasket sealing, it holds up to daily driving without giving up reliability.
Key Features
- Solid 98 percent pure copper core for superior heat dissipation and conductivity
- High grade alumina silicate ceramic insulator for strong dielectric performance
- Triple gasket sealing prevents combustion gas leakage
- Trivalent metal plating resists corrosion and seizing
- Nickel alloy construction engineered for OE quality reliability
Specifications
| Detail | Value |
|---|---|
| Gap | 0.4mm pre gap |
| Heat Range | 8 |
| Thread Size | M10 x 1.0 |
| Reach | 26.5mm |
| Hex Size | 14mm |
| Ground Electrodes | 2, multi ground configuration |
| Seat Type | Flat |
| Terminal Type | Stud |
What’s Included
- 1 NGK LMAR8E-J nickel spark plug
- Crush washer where applicable
About NGK
NGK is a global leader in ignition technology, supplying spark plugs to major vehicle manufacturers as original equipment for decades. Its iconic yellow box packaging represents decades of engineering standards for materials, gap precision, and durability.
Related Parts
- NGK Iridium Spark Plug Box of 4 (IZTR5B11)
- NGK Nickel Spark Plug Box of 4 (TR5)
- NGK Nickel Spark Plug Box of 4 (ZFR5F-11)
FAQ
What is the LMAR8E-J?
The LMAR8E-J is an NGK Standard nickel alloy spark plug with a heat range of 8, an M10 x 1.0 thread, and a 26.5mm reach. It is engineered as an OE quality replacement for applications calling for this specification.
What gap does this spark plug come pre set to?
The plug ships with a 0.4mm factory pre gap. Confirm this matches your vehicle manufacturer specification before installing.
Is this spark plug a nickel or precious metal plug?
This is a nickel alloy spark plug, not a platinum or iridium design. It uses a solid copper core beneath the nickel alloy electrodes for efficient heat transfer.
What thread size does this spark plug use?
It uses an M10 x 1.0 thread with a 14mm hex size and 26.5mm reach.
How many ground electrodes does this spark plug have?
This plug uses a multi ground electrode configuration with two ground electrodes for consistent firing.
How does triple gasket sealing help performance?
Triple gasket sealing prevents combustion gas from leaking past the plug threads, which helps maintain compression and consistent engine performance.
Is this spark plug sold individually?
Yes, this listing is for a single spark plug.
How often should this spark plug be replaced?
Nickel alloy plugs like this one typically follow a shorter service interval than platinum or iridium plugs, so check your vehicle manufacturer maintenance schedule for the recommended replacement mileage.
Install Instructions
- Allow the engine to cool completely before starting work
- Remove the ignition coil, coil pack, or spark plug wire
- Use a spark plug socket to remove the old plug, turning counterclockwise
- Verify the gap on the new plug matches manufacturer specification
- Thread the new plug in by hand until seated, then torque to specification
- Reconnect the coil, coil pack, or wire before starting the engine
