NGK
NGK Coil on Plug Boot

NGK 58971 Direct Ignition Coil Boot

Brand NGK 58971
Length 2.95
Grade Type Premium
Boot Color Black
Part Number Cpb-eu018
Stock Number 58971
Product line NGK Coil on Plug Boot
Fits Jaguar · 27 vehicles

Premium grade. Built as a coil-on-plug ignition boot for direct spark transfer.

Black boot design. 2.95-inch length for the listed ignition applications.

OE-focused engineering. NGK draws on extensive ignition expertise and OE standards.

Cross-references Continental 50065, DENSO Auto Parts 671-8176 and Four Seasons 58971 for the same application. See all 10.

$21.89Free shipping
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NGK Coil-on-Plug Boot Overview

The NGK 58971 coil-on-plug boot is a premium ignition hardware replacement for select Jaguar applications. It is built for direct ignition systems and uses a black boot design with a 2.95-inch length for the specified fitments.

Key Features

  • Premium-grade ignition boot for coil-on-plug systems
  • Black boot construction with a 2.95-inch length
  • Direct ignition hardware replacement for select Jaguar models
  • NGK part number 58971, also identified as CPB-EU018
  • Fits Jaguar Vanden Plas, XJ8, XJR, XK8, and XKR applications listed below

Detailed Description

NGK 58971 is a direct ignition coil boot designed for coil-on-plug service where the boot transfers spark energy from the ignition coil to the spark plug. The premium grade construction aligns with NGK’s OE-focused ignition product line and supports consistent electrical connection in the applications listed. This part cross-references Continental 50065 for the same application.

Fitment includes 1997-2002 Jaguar XK8, 1998-2003 Jaguar Vanden Plas, 1998-2003 Jaguar XJ8, 1998-2003 Jaguar XJR, and 2000-2002 Jaguar XKR. Use the NGK 58971 coil-on-plug boot when replacing worn ignition boots on these Jaguar models.

What It Is Used For

  • Replacing cracked or heat-aged ignition boots
  • Restoring spark transfer in coil-on-plug ignition systems
  • Addressing misfire concerns tied to boot deterioration
  • Correcting ignition leakage caused by worn boot insulation

Installation Notes and Tips

Verify the vehicle application against the listed fitment before installation. The fitment notes indicate direct ignition coil boots are required for the covered Jaguar applications, with no wiring needed. Inspect the coil, plug well, and surrounding ignition components for wear before installing the new boot.

Quality Assurance

NGK brings more than 80 years of ignition experience and OE-focused manufacturing to its replacement parts. The 58971 boot is produced to meet OE standards for durability and operational performance.

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2003JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2003JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2003JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2002JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2002JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2002JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2002JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2002JaguarXKR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2001JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2001JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2001JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2001JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2001JaguarXKR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2000JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2000JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2000JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2000JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
2000JaguarXKR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1999JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1999JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1999JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1999JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1998JaguarVanden Plas4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1998JaguarXJ84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1998JaguarXJR4.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1998JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
1997JaguarXK84.0LV88 direct ignition coil boots required, no wiring needed.; NGK Coil on Plug Boot
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Continental — 50065DENSO Auto Parts — 671-8176Four Seasons — 58971Standard Ignition — SPP109E35-7073175-105650065-1148024702477SPB172