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Jaguar XJ8 Spark Plugs Reviews
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Shop Jaguar XJ8 Replacement Spark Plugs

In internal combustion engines, compressed fuels like aerosol or gas are ignited by means of a spark plug. The functioning of a spark plug is quite simple. Just like electricity produced through lightning, spark plugs ignite electricity between a gap inside the engine. High voltage is needed for the electricity to travel between these gaps to generate the sparks. The voltage should be ideally between 40,000 to 100,000 volts. Spark plugs also need to be constructed delicately as they have to stand extreme heat and pressure inside the cylinder. Each automaker will select specific spark plugs for their cars. Some cars with high and extreme performance generate high energy, thereby producing more electricity. Such cars will need colder spark plugs. The Jaguar will use supercharged V8 Jaguar XJ8 spark plugs. Colder spark plugs will have more spark area thus allowing the engines to run cooler. Always choose the right kind of spark plug for your vehicle. Wrong types of spark plugs could ignite the fuel before the spark fires, causing damage to the vehicle. You should also check the level of coil decay of the spark plug regularly. Sometimes the cover of the plug will come off and the coils will be damaged. Always buy OE certified parts to avoid these troubles.

We stock these Spark Plugs brands for the Jaguar XJ8: NGKBoschDensoAutoliteChampionTRQAC Delco

Spark Plugs available for the following Jaguar XJ8 years: 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 09, 08, 07, 06, 05, 04, 03, 02, 01, 00, 99, 98. This part is also sometimes called Jaguar XJ8 Spark Plug. We stock spark plugs parts for most Jaguar models including S Type, X Type, XK8, XJ6, Vanden Plas, XJS, XF, XJR, XJ, XKE, XKR, XJ12, XK, Super V8, XFR, F Type, XK140, XE, XK150, Mark VII, XK120, 3.8, 420, F-Pace, Mark IX, Mark X, XJRS, D Type, 340, 2.4, 3.4, Mark V, Mark VIII, XKSS and C Type.

Select your XJ8 year

Review Fitment Notes
Showing 22 of 521 Results
NGK Spark Plug - for 2004 Jaguar XJ8 - W0133-1631727 Click to Enlarge
5 Stars
NGK W0133-1631727
Spark Plug
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Part Number: W0133-1631727
Brand: NGK
Notes: Laser Iridium
Product Remark: IFR5N10 NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$29.06
Our Price: $15.13
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2004 Jaguar XJ8
NGK Spark Plug - for 2001 Jaguar XJ8 - W0133-1631727 Click to Enlarge
5 Stars
NGK W0133-1631727
Spark Plug
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Part Number: W0133-1631727
Brand: NGK
Notes: Laser Iridium
Product Remark: IFR5N10 NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$29.06
Our Price: $15.13
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2001 Jaguar XJ8
NGK Spark Plug - for 2000 Jaguar XJ8 - W0133-1631727 Click to Enlarge
5 Stars
NGK W0133-1631727
Spark Plug
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Part Number: W0133-1631727
Brand: NGK
Notes: Laser Iridium
Product Remark: IFR5N10 NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$29.06
Our Price: $15.13
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2000 Jaguar XJ8
NGK Spark Plug - for 1999 Jaguar XJ8 - W0133-1631727 Click to Enlarge
5 Stars
NGK W0133-1631727
Spark Plug
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Part Number: W0133-1631727
Brand: NGK
Notes: Laser Iridium
Product Remark: IFR5N10 NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$29.06
Our Price: $15.13
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
1999 Jaguar XJ8
NGK Spark Plug - for 2008 Jaguar XJ8 4.2L V8 Naturally Aspirated - 7866 Click to Enlarge
5 Stars
NGK 7866
Spark Plug
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Part Number: 7866
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.040"; Actual OE Manufacturer; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$11.19
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2008 Jaguar XJ8 4.2L V8 Naturally Aspirated
Bosch Spark Plug - for 2004 Jaguar XJ8 4.2L V8 - 8101 Click to Enlarge
5 Stars
Bosch 8101
Spark Plug
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Part Number: 8101
Brand: Bosch
Notes: OE Fine Wire Double Platinum -- Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium
  • Platinum on the center electrode firing pin and laser welded platinum inlay ground electrode provide 3 times longer life than conventional copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper
Ground Electrode Tip Material: Platinum and Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$5.33
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Jaguar XJ8 4.2L V8
NGK Spark Plug - for 2004 Jaguar XJ8 4.2L V8 Naturally Aspirated - 5464 Click to Enlarge
5 Stars
NGK 5464
Spark Plug
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Part Number: 5464
Brand: NGK
Notes: Iridium IX Spark Plug -- Gap 0.040"
  • The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloys extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.
  • NGK Iridium IX plugs offer extreme ignitibility and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response.
  • NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.
Condition: New
Shipping Options: Ground
$7.13
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Jaguar XJ8 4.2L V8 Naturally Aspirated
Bosch Spark Plug - for 2003 Jaguar XJ8 Base 4.0L V8 - 8101 Click to Enlarge
5 Stars
Bosch 8101
Spark Plug
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Part Number: 8101
Brand: Bosch
Notes: OE Fine Wire Double Platinum -- Do Not Gap, Gap is Preset
  • Platinum on the center electrode firing pin and laser welded platinum inlay ground electrode provide 3 times longer life than conventional copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper
Ground Electrode Tip Material: Platinum and Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$5.33
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Sub Model Engine
2003 Jaguar XJ8 Base 4.0L V8
Bosch Spark Plug - for 1999 Jaguar XJ8 - W0133-1636054 Click to Enlarge
Website Reviews
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Part Number: W0133-1636054
Brand: Bosch
Notes: Platinum +4
Product Remark: NLA 7/17
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$13.80
Our Price: $4.96
View Details
This Part Fits:
Catalog: A
Vehicle
1999 Jaguar XJ8
NGK Spark Plug - for 2008 Jaguar XJ8 - W0133-1631727 Click to Enlarge
5 Stars
NGK W0133-1631727
Spark Plug
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Part Number: W0133-1631727
Brand: NGK
Notes: Laser Iridium
Product Remark: IFR5N10 NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$29.06
Our Price: $15.13
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2008 Jaguar XJ8
NGK Spark Plug - for 2000 Jaguar XJ8 4.0L V8 Naturally Aspirated - 7090 Click to Enlarge
4.9 Stars
NGK 7090
Spark Plug
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Part Number: 7090
Brand: NGK
Notes: G-Power Spark Plug -- Gap 0.040"
  • The NGK G-power Platinum plug has a trapezoidal cut ground electrode that offers increased durability over the conventional nickel plug and improved fuel efficiency, lower emissions, faster starts and quicker acceleration.
  • Trivalent metal plating eliminates the need for anti-seize. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.
  • NGK G-Power Platinum spark plugs are the best single platinum plug at an economical price. G-Power plugs have a fine wire platinum center electrode that provides excellent performance and fuel efficiency.
Condition: New
Shipping Options: Ground
$3.05
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Jaguar XJ8 4.0L V8 Naturally Aspirated
Bosch Spark Plug - for 2000 Jaguar XJ8 4.0L V8 - 8101 Click to Enlarge
5 Stars
Bosch 8101
Spark Plug
Loading Reviews...
Part Number: 8101
Brand: Bosch
Notes: OE Fine Wire Double Platinum -- Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium
  • Platinum on the center electrode firing pin and laser welded platinum inlay ground electrode provide 3 times longer life than conventional copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper
Ground Electrode Tip Material: Platinum and Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$5.33
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Jaguar XJ8 4.0L V8
NGK Spark Plug - for 2000 Jaguar XJ8 4.0L V8 Naturally Aspirated - 7866 Click to Enlarge
5 Stars
NGK 7866
Spark Plug
Loading Reviews...
Part Number: 7866
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.040"; Actual OE Manufacturer; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$11.19
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2000 Jaguar XJ8 4.0L V8 Naturally Aspirated
Denso Spark Plug - for 2000 Jaguar XJ8 - 5302 Click to Enlarge
Website Reviews
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Part Number: 5302
Brand: Denso
Notes: Iridium Power -- Gap 0.044; Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Iridium Alloy (90% Iridium)
  • Low fuel consumption
  • Excellent acceleration and performance
  • Stable combustion during idling
  • Long life and high reliability
  • Features iridium with high melting point
Condition: New
Ground Electrode Core Material: Nickel
Center Electrode Tip Material: Iridium
Shipping Options: Ground
$6.06
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2000 Jaguar XJ8
NGK Spark Plug - for 2004 Jaguar XJ8 4.2L V8 Naturally Aspirated - 7866 Click to Enlarge
5 Stars
NGK 7866
Spark Plug
Loading Reviews...
Part Number: 7866
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.040"; Actual OE Manufacturer; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$11.19
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Jaguar XJ8 4.2L V8 Naturally Aspirated
Bosch Spark Plug - for 2009 Jaguar XJ8 - C2A1535 Click to Enlarge
Website Reviews
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Part Number: C2A1535
Brand: Bosch
Notes: Spark Plug
Condition: New
Shipping Options: Ground
$7.76
(35) In Stock
This Part Fits:
Catalog: G
Vehicle
2009 Jaguar XJ8
Autolite Spark Plug - for 2009 Jaguar XJ8 - 3924 Click to Enlarge
5 Stars
Autolite 3924
Spark Plug
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Part Number: 3924
Brand: Autolite
Notes: Copper Resistor Spark Plug -- .040"/1.0mm
  • Autolite Copper Core plugs are designed to meet or exceed OES design requirements.
Condition: New
Center Electrode Core: Copper
Center Electrode Tip Material: Nickel
Ground Electrode Tip Material: Nickel
Shipping Options: Ground
$1.36
(99) In Stock
This Part Fits:
Catalog: H
Vehicle
2009 Jaguar XJ8
Bosch Spark Plug - for 2007 Jaguar XJ8 4.2L V8 - 8101 Click to Enlarge
5 Stars
Bosch 8101
Spark Plug
Loading Reviews...
Part Number: 8101
Brand: Bosch
Notes: OE Fine Wire Double Platinum -- Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium
  • Platinum on the center electrode firing pin and laser welded platinum inlay ground electrode provide 3 times longer life than conventional copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper
Ground Electrode Tip Material: Platinum and Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$5.16
(8) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2007 Jaguar XJ8 4.2L V8
NGK Spark Plug - for 2009 Jaguar XJ8 4.2L V8 Naturally Aspirated - 7866 Click to Enlarge
5 Stars
NGK 7866
Spark Plug
Loading Reviews...
Part Number: 7866
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.040"; Actual OE Manufacturer; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$10.60
(23) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
2009 Jaguar XJ8 4.2L V8 Naturally Aspirated
Champion Spark Plug - for 2009 Jaguar XJ8 4.2L V8 - 7070 Click to Enlarge
5 Stars
Champion 7070
Spark Plug
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Part Number: 7070
Brand: Champion
Notes: Double Platinum Power -- Gap 0.040 (in); Plug Type Number RC11PYPB4
Condition: New
Classification: Champion Double Platinum
Center Electrode Tip Material: Platinum
Ground Electrode Core Material: Platinum
Shipping Options: Ground
$3.16
(99) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2009 Jaguar XJ8 4.2L V8
TRQ Spark Plug Set - for 2009 Jaguar XJ8 - SPA02149 Click to Enlarge
Website Reviews
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Part Number: SPA02149
Brand: TRQ
Notes: Spark Plug Set
  • Iridium Tip: Provides 25% longer life compared to platinum plugs
  • Resistor Included: Eliminates electromagnetic interference
  • Heat Range Tested: Ensures like-new engine performance
Condition: New
Quantity: 8 Piece
Spark Plug Type: Iridium
Shipping Options: Free Ground Shipping
$52.95
with FREE Shipping
View Details
This Part Fits:
Catalog: Q
Vehicle
2009 Jaguar XJ8
AC Delco Spark Plug - for 2009 Jaguar XJ8 4.2L V8 - 5 Click to Enlarge
Website Reviews
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Part Number: 5
Brand: AC Delco
Notes: Gold RAPIDFIRE -- New; Gap 0.040 (in)
Condition: New
Center Electrode Tip Material: Platinum Pad
Shipping Options: Ground
$3.50
(99) In Stock
This Part Fits:
Catalog: N
Vehicle Engine
2009 Jaguar XJ8 4.2L V8

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Bosch products have been top quality for many years, very satisfied - Bob

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Already gapped, reliable plugs. Ready for another 100k miles. - Jag XJ OEM spark plugs

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