NGK Spark Plug

Spark Plug from NGK. Key specs: thread size 18 mm, thread pitch 1.5 mm and hex size 13/16" (21 mm). Ignition parts are routine maintenance and among the easiest ways to restore smooth running.

Key features

• Corrugated ribs prevent Flashover
• Copper Core aids in heat removal
• Triple seals prevent leakage

Specifications

• Brand: NGK
• Part type: Ignition part
• Thread Size: 18 mm
• Thread Pitch: 1.5 mm
• Seat Type: Tapered
• Reach: 11.6 mm (.460")
• Hex Size: 13/16" (21 mm)
• Terminal Type: Solid
• Overall Height: ISO
• Gap: 024" (0.6 mm)
• Material: Nickel
• Type: Standard
• Size: 2.5 mm
• Projection: Projected
• Quantity: 1
• Torque Specs: Cast Iron: 14.5-21.6 lb ft. Aluminum: 14.5-21.6 lb ft
• Heat Range: 8
• Longevity: 30K Miles

Fitment

This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.

What it does

Worn plugs, cracked wires and weak coils cause misfires, rough running and poor economy. Electrical faults often show up as warning lights, rough running or no-start problems, and the right replacement part clears the cause rather than the symptom.

Installation & tips

• Set the spark plug gap to your engine spec and do not over-torque plugs in aluminum heads.
• Plug wires or boots: Old wires and boots crack.
• Disconnect the battery before you unplug or splice any wiring, and test everything works before you refit trim panels.

FAQ

What is the spark plug made of?
The listing gives the material as nickel.

What size is it?
Thread Size: 18 mm; Thread Pitch: 1.5 mm; Hex Size: 13/16" (21 mm).

Is it sold individually or as a set?
The listing gives: 1.

Before you order

• Measure the part you are replacing and compare it with the specifications above.