NGK
NGK Coil on Plug Boot

NGK 58940 Direct Ignition Coil Boot

Brand NGK 58940
Length 4.06
Grade Type Premium
Boot Color Black
Part Number Cpb-m001
Stock Number 58940
Product line NGK Coil on Plug Boot
Fits Mitsubishi · 4 vehicles

OE-standard replacement. Built to meet original equipment durability and performance requirements.

Coil-on-plug boot. A direct ignition boot for dependable spark transfer.

Premium grade. Black boot with NGK's ignition expertise behind it.

Cross-references DENSO Auto Parts 671-4280, Intermotor 55218K and NGK 58940 for the same application. See all 13.

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NGK Coil on Plug Boot for Mitsubishi Lancer

NGK Coil on Plug Boot 58940 is a premium direct ignition coil boot built for OE-style ignition service on select Mitsubishi Lancer applications. It is engineered to support reliable coil-to-spark transfer with a black boot design and a 4.06-inch length.

For drivers searching for a Mitsubishi Lancer ignition boot replacement, NGK 58940 provides a direct-fit service part backed by NGK’s long OE-focused ignition experience. This NGK Coil on Plug Boot line is built for vehicles that need precise ignition hardware rather than a universal solution.

Key Features

  • Direct ignition coil boot for coil-on-plug systems
  • Premium grade type for OE-style replacement service
  • Black boot color
  • Length: 4.06 inches
  • NGK part number 58940, also listed as CPB-M001
  • Fits select 2003-2006 Mitsubishi Lancer applications

Product Details

NGK 58940 is a direct ignition coil boot designed for select Mitsubishi Lancer models from 2003-2006, with fitment notes calling for the correct engine-side application details to be verified before ordering. NGK’s ignition product line includes spark plugs, ignition coils, glow plugs, coil-on-plug boots, and wire sets, with manufacturing focused on OE-level durability and operational performance. This part cross-references DENSO Auto Parts 671-4280 for the same application.

Common Issues This Part May Address

  • Cracked or worn coil boot insulation
  • Misfire caused by poor coil-to-plug connection
  • Ignition voltage leakage at the boot
  • Hard starting related to degraded ignition transfer
  • Rough engine operation from aging ignition hardware

Installation Notes and Tips

Verify the vehicle year and engine configuration before installation. Fitment notes for the Mitsubishi Lancer indicate additional slave set requirements on certain applications, so confirm the exact ignition setup before replacing the boot. Inspect the coil, spark plug, and surrounding ignition components for wear or contamination during service.

Quality Assurance

NGK is an ignition specialist with extensive OE experience and a product range built around replacement ignition components for domestic and import vehicles. NGK 58940 is manufactured to support OE-standard durability and performance expectations for the listed Mitsubishi Lancer fitments.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006MitsubishiLancer2.0LL4N/A2 Lead Slave Set Also Req'd; To 7/2005; 2 Required; NGK Coil on Plug Boot
2005MitsubishiLancer2.0LL4N/A2 Lead Slave Set Also Req'd; 2 Required; NGK Coil on Plug Boot
2004MitsubishiLancer2.0LL4N/A2 Lead Slave Set Also Req'd; 2 Required; NGK Coil on Plug Boot
2003MitsubishiLancer2.0LL4N/A2 Lead Slave Set Also Req'd; 2 Required; NGK Coil on Plug Boot
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DENSO Auto Parts — 671-4280Intermotor — 55218KNGK — 58940PRENCO — 36-2011Standard Ignition — SPP73E35-70545422K184071584010702434727434SPB137SPP73