NGK 59007 Direct Ignition Coil Boot

NGK Coil on Plug Boot for Subaru Ignition Service

The NGK Coil on Plug Boot, part number 59007, is a premium direct ignition coil boot for Subaru applications that use coil-on-plug ignition. It is built to support reliable spark transfer in vehicles such as the Subaru Forester, Impreza, Legacy, Outback, and Baja across the listed model years.

NGK draws on more than 80 years of ignition experience and OE-focused manufacturing to produce replacement ignition components that meet demanding durability and performance expectations. The NGK Coil on Plug Boot line is made for drivers and technicians looking for a direct ignition coil boot replacement with the correct fit and construction for Subaru ignition service.

Key Features

• Direct ignition coil boot for coil-on-plug systems
• Premium grade construction
• Black boot color
• Length: 2.83 in.
• NGK part number 59007, also identified as CPB-SB003
• Cross-reference: DENSO Auto Parts 671-4306

Detailed Product Overview

This NGK Coil on Plug Boot is intended for Subaru vehicles that require individual coil boots rather than ignition wires. It is listed for 2004-2010 Subaru Forester, 2004-2010 Subaru Impreza, 2005-2009 Subaru Legacy, 2005-2009 Subaru Outback, and 2004-2006 Subaru Baja. For these applications, the vehicle uses four direct ignition coil boots and no wires.

Part number 59007 is part of NGK’s ignition product line, which includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. The brand’s OE background and global manufacturing focus make this boot a practical replacement choice when servicing Subaru coil-on-plug ignition systems.

Common Issues This Part Can Address

• Cracked or worn coil boot material
• Misfire caused by weak spark transfer at the plug
• Ignition performance loss from aging boot insulation
• Hard starting related to degraded coil boot condition
• Intermittent ignition issues in Subaru Forester, Impreza, Legacy, Outback, or Baja models

Installation Notes and Tips

Verify the vehicle’s ignition layout before ordering. This boot is for Subaru coil-on-plug applications that use four direct ignition coil boots and no wires. Inspect the ignition coil, spark plug, and surrounding components during service, and replace worn parts as needed to restore proper ignition performance. Confirm the boot length and application match the vehicle before installation.

Quality Assurance

NGK manufactures premium ignition products to OE-level durability and operational performance standards. The brand’s long-standing OE expertise and broad vehicle coverage support consistent replacement quality for domestic and import applications.