NGK 58981 Direct Ignition Coil Boot

NGK Coil on Plug Boot for OE-Style Ignition Service

The NGK Coil on Plug Boot is a premium direct ignition coil boot built for vehicles that use coil-on-plug ignition without spark plug wires. It is designed for OE-level fit and durability, with NGK’s long background in ignition components supporting consistent performance in daily driving conditions.

Use this NGK Coil on Plug Boot, part number 58981, when servicing ignition boots on select Chevrolet, GMC, Hummer, Buick, Saab, and Isuzu applications. The black boot design and 3.66-inch length support direct ignition service where a replacement boot is needed for proper coil-to-spark plug connection.

Key Features

• Direct ignition coil boot for coil-on-plug systems
• Premium grade construction
• Black boot color
• 3.66-inch length
• Built by NGK, a long-established ignition parts manufacturer
• Part number 58981 for catalog and service reference

Vehicle Fitment and Application

Compatible With select 2006-2012 Chevrolet Colorado, 2006-2009 Chevrolet Trailblazer, 2006 Trailblazer EXT, 2006-2007 Buick Rainier, 2006-2009 GMC Envoy, 2006 Envoy XL, 2007-2012 GMC Canyon, 2007-2010 Hummer H3, 2009-2010 Hummer H3T, 2006-2009 Saab 9-7x, 2006-2008 Isuzu Ascender, 2007-2008 Isuzu i-290, and 2007-2008 Isuzu i-370 applications. Fitment notes vary by vehicle and ignition layout, including no-wires-required configurations and direct ignition coil boot service. This part cross-references Standard Ignition SPP117E for the same application.

For Chevrolet Colorado and GMC Canyon service, NGK Coil on Plug Boot 58981 is listed for 2007-2012 model years with application-specific notes. It also appears in fitment for Chevrolet Trailblazer and GMC Envoy ignition service, where coil-on-plug boot replacement is required on the listed vehicles.

What This Part Helps Address

• Misfire caused by worn or damaged coil boot insulation
• Weak spark transfer between ignition coil and spark plug
• Cracking, heat damage, or carbon tracking at the boot
• Rough idle or hesitation related to ignition boot wear
• Service needs on coil-on-plug ignition systems without plug wires

Installation Notes and Tips

Verify the vehicle’s ignition layout and fitment notes before installation. This boot is used on direct ignition coil applications, so confirm the correct engine and coil-on-plug configuration for your Chevrolet Colorado, GMC Canyon, or other listed vehicle. Inspect the coil, spark plug, and surrounding ignition components during service to help ensure a proper repair.

Quality Assurance

NGK is known for ignition components developed with extensive OE experience and manufactured to meet OE standards for durability and operational performance. Part number 58981 reflects NGK’s premium ignition product line for domestic and import vehicle service.