Jeep JK 3.6L Pentastar Spark Plug Gap & Torque Specs

Technical scope and sources

This reference is educational and covers common 2007–2018 Jeep Wrangler JK configurations. Exact torque values, capacities, fluid requirements, fasteners and service sequences can vary with model year, engine, axle, factory options and prior repair. Verify the exact vehicle and use the applicable factory service information before tightening a fastener or filling a component. The 2018 JK Owner’s Manual and Mopar’s maintenance schedule are starting points for 2018 operating and maintenance information; use matching documentation for other model years. Read the OffroadMe editorial standards for our source hierarchy.

Jeep JK 3.6L Pentastar Spark Plug Gap & Torque Specs

Replacing the spark plugs on the 3.6L Pentastar V6 (2012-2018) is a comprehensive job because accessing the driver-side bank requires complete removal of the upper intake manifold. View our full Jeep JK Master Torque Database for more engine specifications.

FSM Factory Spark Plug Specifications

Specification FSM Requirement
Spark Plug Gap 0.043 in (1.1 mm)
Spark Plug Torque 13 ft-lbs (17.5 Nm)
Ignition Coil Fastener Torque 71 in-lbs (8 Nm)

FSM Installation Protocol & Warnings

⚠️ CRITICAL WARNING: The cylinder heads on the 3.6L Pentastar are made of aluminum. The factory service manual explicitly states DO NOT use anti-seize compound on the spark plug threads. Anti-seize acts as a lubricant and will cause you to over-torque the plugs, stripping the delicate aluminum threads.

Related Engine Specs

Scroll to Top