NGK 59016 Direct Ignition Coil Boot

NGK Coil on Plug Boot for OE-Style Ignition Repair

NGK Coil on Plug Boot 59016 is a premium direct ignition coil boot built for vehicles that use coil-on-plug ignition without spark plug wires. It is a practical replacement for worn or damaged ignition boots on select Toyota and Lexus applications, including Camry, Sienna, Highlander, Solara, ES330, RX330, and RX400h models.

Key Features

• Premium-grade direct ignition coil boot for coil-on-plug systems
• Black boot and black seal construction
• Length: 1.65 in.
• OE-focused NGK ignition component backed by decades of ignition system experience
• Direct replacement part number 59016

Product Details

NGK Coil on Plug Boot 59016 is part of the NGK Coil on Plug Boot line, a product family focused on ignition service parts for modern coil-on-plug engines. NGK applies its ignition-system manufacturing experience to replacement boots that meet OE-level durability and operational performance expectations. This boot is used in applications where the ignition coil connects directly to the spark plug, helping maintain a stable electrical path in the ignition system.

This part cross-references Standard Ignition SPP153E for the same application.

Vehicle Fitment

• Fits 2004-2010 Toyota Highlander, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2006-2008 Lexus RX400h, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2004-2008 Toyota Solara, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2004-2006 Lexus ES330, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2004-2006 Lexus RX330, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2004-2006 Toyota Camry, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.
• Fits 2004-2006 Toyota Sienna, N/A. No wires required; 6 coils are required; NGK Coil on Plug Boot.

Common Issues This Part Can Address

• Cracked or heat-aged coil boot material
• Weak ignition transfer between coil and spark plug
• Misfire symptoms caused by worn boot insulation
• Moisture intrusion at the coil-on-plug connection
• Intermittent ignition performance on aging Toyota and Lexus engines

Installation Notes and Tips

Verify the engine uses a coil-on-plug setup before ordering. Match the part number 59016 to the vehicle application and inspect the ignition coil, spark plug well, and surrounding seals during service. Clean the mating area before installation and confirm the boot seats fully on the coil and spark plug.

Quality Assurance

NGK is an ignition specialist with extensive OE experience and a long history of producing ignition components for domestic and import vehicles. Its replacement ignition parts are manufactured to support OE standards for durability and performance.