NGK
NGK Coil on Plug Boot

NGK 58949 Direct Ignition Coil Boot

Brand NGK 58949
Length 4.8
Grade Type Premium
Boot Color Black
Part Number Cpb-n009
Stock Number 58949
Product line NGK Coil on Plug Boot
Fits INFINITI and Nissan · 2 vehicles

OE expertise. NGK brings decades of ignition know-how to this replacement boot.

Premium grade. Built to meet demanding durability and operational performance standards.

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

Cross-references AP Exhaust 2524, Continental 50014 and Four Seasons 58949 for the same application. See all 15.

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NGK Coil on Plug Boot for Nissan and Infiniti

Restore ignition connection quality with the NGK Coil on Plug Boot, part number 58949. This premium direct ignition coil boot is built for 2001 Infiniti QX4 and 2001 Nissan Pathfinder applications with no wires required and cylinder-specific fitment for cylinders 2, 3, 4, 5, and 6.

Key Features

  • NGK Coil on Plug Boot, part number 58949
  • Premium grade direct ignition coil boot
  • Black boot color
  • Length: 4.8
  • Built to meet OE-level durability and operational performance standards
  • Fits 2001 Infiniti QX4, N/A
  • Fits 2001 Nissan Pathfinder, N/A

Product Details

NGK 58949 is part of the NGK Coil on Plug Boot line, a focused ignition product range that includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. NGK draws on more than 80 years of automotive ignition experience and OE development knowledge to produce replacement ignition components for domestic and import vehicles. This boot is a direct ignition coil boot for specific 2001 Infiniti QX4 and Nissan Pathfinder engine applications, making it a targeted replacement for vehicles that use coil-on-plug ignition architecture.

This part cross-references Standard Ignition SPP84E for the same application.

What It Helps Address

  • Weak or inconsistent ignition connection at the coil-on-plug interface
  • Misfire conditions related to worn boot insulation or contact wear
  • Hard starting caused by degraded ignition transfer
  • Rough idle from compromised spark delivery
  • Ignition performance loss on 2001 Infiniti QX4 and 2001 Nissan Pathfinder engines

Installation Notes and Tips

Verify engine code and cylinder location before installation. This application notes no wires required and references cylinders 2, 3, 4, 5, and 6, so confirm the correct coil-on-plug position before service. Inspect the coil, spark plug, and surrounding ignition components for wear or contamination before installing the new boot. Clean mating surfaces and ensure the boot seats fully for proper electrical contact.

Quality Assurance

NGK manufactures premium ignition products to OE standards and supports a broad range of domestic and import vehicle coverage. The brand’s OE background and global manufacturing and distribution network support consistent replacement part quality for ignition service.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2001INFINITIQX43.5LV6N/ANo Wires Req'd; To 07/2001; Cylinder(s) 2,3,4,5,6; 5 Required; NGK Coil on Plug Boot
2001NissanPathfinder3.5LV6N/ANo Wires Req'd; To 07/2001; Cylinder(s) 2,3,4,5,6; 5 Required; NGK Coil on Plug Boot
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 2524Continental — 50014Four Seasons — 58949PRENCO — 36-2034Standard Ignition — SPP84E35-7044175-1023671-62530252450014-1176016702437727437SPB147SPP84