NGK 59037 Direct Ignition Coil Boot

NGK Coil on Plug Boot 59037

The NGK Coil on Plug Boot 59037 is a premium ignition hardware replacement built for direct ignition systems. It uses a rubber boot construction and black finish to support reliable coil-to-plug connection in Volvo applications.

Key Features

• Premium-grade ignition boot for direct ignition coil service
• Rubber boot material for dependable electrical insulation
• Black finish for a clean OE-style appearance
• Built to meet OE standards for durability and operational performance
• NGK coil on plug boot line focused on ignition service parts

Detailed Description

NGK 59037 is a direct ignition coil boot from the NGK Coil on Plug Boot line, engineered for ignition service where the boot transfers coil output to the spark plug. This part number, also identified as CPB-EU023, is listed for Volvo S40, Volvo V40, Volvo S90, Volvo V90, and Volvo 960 applications. The rubber construction and premium grade support consistent fit and electrical isolation in coil-on-plug systems. This part cross-references Standard Ignition SPP194E for the same application.

What It Is Used For

• Replacing a worn or heat-aged ignition boot
• Restoring a secure coil-to-plug electrical path
• Addressing misfire concerns caused by boot deterioration
• Correcting cracking, hardening, or carbon tracking at the boot

Installation Notes and Tips

Verify the vehicle application and note-specific requirements before installation. Some Volvo S40 and V40 applications list a 2 lead slave set requirement, while S90, V90, and 960 applications note that no wires are required. Confirm the ignition system layout and inspect related ignition components during service.

Quality Assurance

NGK brings more OE ignition expertise globally than any other brand and manufactures premium ignition products to OE standards. The brand’s long automotive history and OE-focused product development support consistent replacement quality.