1994 Jaguar XJ12 Ignition and Tune-Up Products

Name: DiamondFire Spark Plug (E3.46): Enhanced Power & Fuel Efficiency
Brand: E3
SKU: E3.46
Price: 8.49 USD
Rating: 4.0 (16 reviews)

Below you will find various in-demand Jaguar Ignition and Tune-Up Products, components and accessories for your 1994 XJ12. Advance Auto Parts has popular XJ12 parts like Ignition Coils and Boots, Distributors, Spark Plugs and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other XJ12 model years including 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1995, 1996 and more. Select a category of 1994 Jaguar XJ12 Ignition and Tune-Up Products below and start saving instantly.

Popular 1994 Jaguar XJ12 Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Distributor Cap Kits

Essential Ignition and Tune-Up Products for 1994 Jaguar XJ12s

from

$8.49

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.46 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of applications from the 60s to early 90s, especially import. E3.46 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
Wide Compatibility: The E3.46 spark plugs are 14mm with a 0.750 reach and a gasket seat, making them suitable for a wide range of applications from the 1960s to early 1990s, especially for import vehicles.
Widely Available: The E3.46 spark plugs are widely stocked in automotive retail stores, ensuring easy availability for consumers.

from

$3.99

Autolite Copper spark plugs are crafted to ensure quick starts and reliable performance, making them a dependable choice for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrode enhance durability for extended use. The high alumina multi-rib ceramic insulator boosts thermal conductivity and insulation, ensuring superior strength under demanding conditions. With a nickel-plated shell, these spark plugs resist corrosion, adding to their longevity. Designed for optimal fuel efficiency, they help improve fuel economy, saving you money over time. The mid-projection standard center electrode and flat seat type further contribute to their consistent performance. Equipped with a resistor, these spark plugs are built to meet regular grade expectations while delivering reliable ignition and smooth operation.

Product Features:

The copper core center electrode aids in thermal control and improves resistance to fouling.
Its specially engineered high nickel alloy center and ground electrode provides extended life.
The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you achieve better fuel economy, saving you money at the pump.

from

$8.49

The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger and faster flame kernel. This translates to improved power output – up to 6% on average – and better fuel efficiency, saving you money while reducing engine carbon deposits. Constructed with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Its tapered seat design ensures a secure fit, and the pre-gapped configuration eliminates the need for adjustments, making installation hassle-free. With its advanced technology, this spark plug not only boosts performance but also promotes cleaner combustion, making it a smart upgrade for any vehicle.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

from

$5.99

NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Triple Gasket Sealing: Prevents combustion gas leakage, ensuring efficient engine performance.

from

$11.29

Iridium Power Spark Plug delivers unmatched performance with the world’s smallest Iridium Center Electrode at just 0.4mm, ensuring improved spark and maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, it offers exceptional durability and precision. The U-groove and taper cut ground electrode design enhances flame propagation for optimal engine performance, while its ability to withstand temperatures exceeding 4000 degrees Fahrenheit ensures reliability under extreme conditions. Burnished nickel plating provides superior corrosion resistance and high-temperature endurance, making it ideal for demanding applications. With a wide range of part numbers, this spark plug is compatible with thousands of vehicles, including classic and collector cars. Crafted with Iridium for maximum spark energy, it combines cutting-edge technology and robust construction to deliver long-lasting performance and value. Designed with a tapered seat type, it ensures a secure fit and seamless installation.

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000 degree Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

from

$4.29

Autolite Copper spark plugs are designed to provide reliable performance and durability, making them an excellent choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are engineered for extended life, while the mid-projection design optimizes spark delivery. A high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, contributing to superior strength and reliability. The nickel-plated shell resists corrosion, ensuring long-lasting durability even in demanding conditions. With a tapered seat type and integrated resistor, these spark plugs are built to meet performance expectations, delivering quick starts and the power your vehicle needs.

Product Features:

The copper core center electrode aids in thermal control and improves resistance to fouling.
Its specially engineered high nickel alloy center and ground electrode provides extended life.
The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
The integrated resistor minimizes electrical interference, ensuring smoother engine performance and reliable ignition.

from

$10.49

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$9.99

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion
Double Iridium-enhanced alloy center electrode ensures superior wear resistance for extended performance life.

from

$4.99

Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. The nickel-tipped center and ground electrodes enhance conductivity while resisting corrosion, ensuring reliable ignition under various conditions. Designed to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with standard replacement needs. Its tapered seat type and built-in resistor further optimize functionality, making it a trusted solution for smooth engine operation. Invest in this high-quality spark plug for superior reliability and value.

Product Features:

Copper core center electrode allows for accurate control of heat range for longer life
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance

from

$85.99

Carquest ignition coils meet original equipment (OE) fit, form and function and are built to ensure reliable starting and performance. Carquest ignition coils are tested to ensure proper spark and perfect fit for each application. These ignition coils are an affordable repair choice to restore the vehicle¿s ignition system performance. Carquest ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Long service life and durable performance
High dielectric strength for reliability
Corrosion-resistant connections
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
High reliability
Long service life

from

$26.99

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure confidence and product reliability, every time.

from

$64.99

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$101.99

As the innovator and leader in stick coil technology DENSO has conducted superior testing and inspection processes to insure the highest quality ignition coil. Don’t be fooled by imitations – look for the DENSO name to be sure you’re getting the best.

Product Features:

First Time Fit
Built to DENSO Original Equipment Standards

from

$101.99

Every single Delphi ignition coil is designed and endurance tested using high quality materials. This ensures fast starts, consistent engine performance and optimized fuel efficiency. We makes more than 10 million ignition coils for North America each year, and each one is engineered to OE design specifications for vehicles from Ford, Toyota, Nissan, Lexus, GM, Mazda, Chrysler, Subaru, Acura and more.

Product Features:

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

from

$101.99

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$75.99

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$121.99

The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.

Product Features:

All products are constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Cap terminal conductor wires formed with precision guided machines to ensure precise final location in the final housing assembly.
Terminal inserts manufactured to precise tolerances to ensure a guaranteed electrical connection between the cap conductor wires and spark plug wire terminals.
Distributor rotor blade coated with RFI coating to prevent electrical magnetic interference with the vehicles electrical system.
Distributor and rotor housings manufactured using the latest plastic technologies to guarantee di-electric strength and long life cycle.

Upgrade your 1994 Jaguar XJ12 with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1994 Jaguar XJ12, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Jaguar or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your XJ12 functioning at its best. At Advance Auto Parts, we offer a wide selection of 15 Ignition and Tune-Up Products for the 1994 Jaguar XJ12, designed to meet your needs without breaking the bank. From Ignition Coils and Boot replacements to Distributors upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 1994 Jaguar XJ12 at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $4.29 to $121.99, with an average price of $19.77. Our 15 Ignition and Tune-Up Products in stock come from 9 trusted brands, so you’re sure to find the right part for your 1994 Jaguar XJ12 without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1994 Jaguar XJ12, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like Champion, Autolite, Dorman, and more. Champion Ignition and Tune-Up Products start at just $4.99 and boast an impressive 4.7 stars average rating from customers. Autolite and Dorman also bring quality to the table, with Ignition and Tune-Up Products available starting at $4.29, and at an average 4.6 stars rating. With 206 customer reviews and counting, our 1994 Jaguar XJ12 Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1994 Jaguar XJ12 is always ready to roll. We’re committed to providing you with everything you need to keep your XJ12 in top shape, all in one place. Start shopping confidently below for your 1994 Jaguar XJ12!

Best-Selling Ignition Coils and Boots for 1994 Jaguar XJ12s

Enhance the driving experience in your Jaguar with 1 quality Ignition Coils and Boot components, starting at $75.99.

show more show less

from

$75.99

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Top Picks for 1994 Jaguar XJ12 Spark Plugs

Upgrade Jaguar XJ12s with top-quality Spark Plugs parts, including 13 OEM and aftermarket selections for your 1994 model.

show more show less

from

$4.29

The copper core center electrode aids in thermal control and improves resistance to fouling.
Its specially engineered high nickel alloy center and ground electrode provides extended life.
The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
The integrated resistor minimizes electrical interference, ensuring smoother engine performance and reliable ignition.

from

$6.99

The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressures for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is built to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and reliability. Designed to meet the demands of modern engines, this spark plug offers outstanding value and long-lasting performance.

Product Features:

Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
The multi-rib insulator prevents flash-over.
Designed with a mid-projection center electrode and tapered seat type to ensure consistent ignition and improved engine efficiency.

from

$4.99

Copper core center electrode allows for accurate control of heat range for longer life
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance

from

$10.49

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$4.99

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
V-Groove Tip Design: The unique V-Groove tip design of the BR6EF model enhances ignitability and overall engine performance.

from

$4.99

Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, enhanced acceleration, and improved fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, ensuring reliable operation, and the nickel-plated shell resists corrosion for long-lasting durability. With a mid-projection standard center electrode and a tapered seat type, these performance-grade spark plugs deliver consistent results. The combination of platinum and nickel materials in the electrode tips further enhances reliability, making them a trusted choice for maintaining engine efficiency and longevity.

Product Features:

Engineered with a platinum firing tip that prevents gap erosion for longer service life.
Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
The multi-rib insulator prevents flash-over.
Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
Incorporates a mid-projection center electrode design to deliver consistent and reliable performance.

from

$8.49

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

from

$10.99

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion
Double Iridium-enhanced alloy technology ensures superior wear resistance for extended plug life.

from

$10.29

ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

from

$11.29

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000 degree Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

from

$8.49

The Champion Iridium Spark Plug is engineered for maximum performance and longevity, making it a premium choice for your vehicle. Featuring a fine-wire iridium center electrode and a V-trimmed iridium-platinum ground electrode, this spark plug ensures sharper spark focus and greater ignitability for optimal engine efficiency. Its Heat-Active alloy allows the electrodes to quickly reach and maintain stable operating temperatures under all engine loads, ensuring consistent performance. Designed with a tapered seat and built-in resistor, it delivers reliable operation while reducing interference. The iridium center electrode is crafted for maximum durability and extended life, making it ideal for high-performance applications. Whether you’re looking to enhance your vehicle’s ignition system or maintain peak engine performance, this spark plug offers exceptional value and reliability.

Product Features:

Champion Iridium – Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Heat-Active alloy allows electrodes to reach optimal temperature quickly

from

$7.29

Champion Double Platinum Power spark plugs are engineered for enhanced durability and performance, making them a premium choice for reliable ignition. Featuring a platinum fine-wire center electrode and a platinum pad ground electrode, these spark plugs deliver greater wear resistance and sharper spark focus for consistent ignitability. The V-trimmed ground electrode ensures precise spark delivery, while the exclusive Heat-Active alloy allows the electrodes to maintain optimal operating temperatures under all engine loads. Designed as a standard replacement, these spark plugs are equipped with a tapered seat and resistor type for seamless compatibility with a wide range of vehicles. Whether you’re seeking improved engine performance or long-lasting reliability, Champion Double Platinum Power spark plugs provide the power and durability you need for a smoother driving experience.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature

Spark Plug: Reliable Ignition with Nickel Electrode Design

from

$4.99

This spark plug is engineered for reliable ignition performance, featuring a standard center electrode design and durable nickel construction for both the center and ground electrode tips. The nickel material ensures excellent conductivity and resistance to wear, making it a dependable choice for maintaining consistent engine performance. Its tapered seat type provides a secure fit, enhancing the seal and preventing gas leakage for optimal combustion efficiency. Designed to deliver long-lasting durability and compatibility with a wide range of vehicles, this spark plug is an excellent value for drivers seeking dependable ignition and smooth engine operation.

Product Features:

Engineered with a durable nickel construction for both the center and ground electrode tips, ensuring excellent conductivity and resistance to wear.
Tapered seat design enhances the seal, preventing gas leakage and promoting optimal combustion efficiency.
Compatible with a wide range of vehicles, offering versatility and convenience for various applications.
Designed to deliver consistent ignition performance, supporting smooth engine operation and reliability.
Long-lasting durability makes it a cost-effective choice for maintaining engine performance over time.

Top-Rated Ignition and Tune-Up Products Brands For Your 1994 Jaguar XJ12

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1994 Jaguar XJ12s. Below you’ll find some of our best rated Ignition and Tune-Up Products from Champion, Autolite, and Dorman, and more. Ignition and Tune-Up Products from these brands that fit a 1994 XJ12 start at just $4.29 and are rated as high as 4.7 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular Champion 1994 Jaguar XJ12 Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1994 Jaguar XJ12, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. Champion ticks all of those boxes. We offer a wide selection of Champion Ignition and Tune-Up Products, specifically designed for the 1994 Jaguar XJ12. With over 1 Champion brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $4.99. Plus, with over 2 customer reviews and an average rating of 4.7 stars, you can trust that our Champion Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $4.99

(2)

Copper Plus Spark Plug (RS9YC): Dependable Performance & Durability

“Fit perfectly. Easy to install.”

Popular Autolite 1994 Jaguar XJ12 Ignition and Tune-Up Products

Autolite auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1994 Jaguar XJ12 owner should feel confident when installing genuine Autolite parts in their vehicle. To ensure the best fit and performance for your 1994 XJ12, Advance Auto Parts carries a full inventory of 3 Autolite Ignition and Tune-Up Products. Plus you will be keeping your Jaguar in peak condition while saving money because prices on these Autolite Ignition and Tune-Up Products range from $4.29 to $6.99, plus, with more than 166 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $4.29

(31)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

“Yes”

from $6.99

(53)

Double Platinum Spark Plug: Enhanced Durability & Performance

“I debated between platinum, double platinum, and iridium plugs as a suitable replacement for my copper-based plugs in my V12 Jaguar. I settled on the ”

from $4.99

(82)

Platinum Spark Plug (AP103): Improved Performance & Durability

“My van is running, so I assume the plugs are workin’ fine. I’ll update you at 50,000 miles.”

FAQs for 1994 Jaguar XJ12 Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 1994 Jaguar XJ12s?

Out of 15 Ignition and Tune-Up Products that fit 1994 Jaguar XJ12s, the following parts are the top sellers:

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (15650186) – $10.99
DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (19650223) – $8.49
Double Platinum Spark Plug: Long-Lasting Performance & Durability (11400016) – $10.29

What’s the price range for 1994 Jaguar XJ12 Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 1994 Jaguar XJ12 start at $4.29 and go up to $121.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 1994 Jaguar XJ12?

The average price for Ignition and Tune-Up Products for the 1994 Jaguar XJ12 is $19.77. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Ignition and Tune-Up Products for other Jaguar XJ12 model years?

Yes, we currently carry Ignition and Tune-Up Products for 8 model years of Jaguar XJ12s between 1973 and 1996. Ignition and Tune-Up Products are bought most frequently for the following model years: 1996, 1995, 1979, 1978, 1977, 1976, 1975, 1974, and 1973.

What are the cheapest Ignition and Tune-Up Products for my 1994 Jaguar XJ12?

The cheapest 1994 Jaguar XJ12 Ignition and Tune-Up Products we carry in stock are:

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (5390346) – $4.29
Platinum Spark Plug (AP103): Improved Performance & Durability (11390013) – $4.99
Copper Plus Spark Plug (RS9YC): Dependable Performance & Durability (89011734) – $4.99
V-Power Nickel Spark Plug (BR6EF): Enhanced Ignitability & Performance (19650310) – $4.99
Spark Plug: Reliable Ignition with Nickel Electrode Design (50012484) – $4.99

What are the top-rated Ignition and Tune-Up Products that fit the 1994 Jaguar XJ12?

Out of 206 reviews by customers, our 1994 Jaguar XJ12 Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 1994 Jaguar XJ12 and their top-rated products:

Spark Plugs
- Spark Plug Non-Foulers – 14mm Tapered Seat (5017718) – $10.49
- V-Power Nickel Spark Plug (BR6EF): Enhanced Ignitability & Performance (19650310) – $4.99
- Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (5390346) – $4.29

What types of Ignition and Tune-Up Products do you sell for my 1994 Jaguar XJ12?

As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1994 Jaguar XJ12:

Can I get help with 1994 Jaguar XJ12 Ignition and Tune-Up Product orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Jaguar Ignition and Tune-Up Products and more.

What is your return policy for Jaguar XJ12 Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Jaguar XJ12 Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1994 Jaguar XJ12 Ignition and Tune-Up Products

E3 – DiamondFire Spark Plug (E3.46): Enhanced Power & Fuel Efficiency (Part No.E3.46)

Autolite – Copper Resistor Spark Plug: Quick Starts & Reliable Performance (Part No.64)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.53)

NGK – Standard Nickel Spark Plug (BPR6ES): Reliable OE Performance (Part No.7131)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT22 (Part No.5327)

Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.103)

Dorman – Help – Spark Plug Non-Foulers – 14mm Tapered Seat (Part No.42008)

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP64)

Champion – Copper Plus Spark Plug (RS9YC): Dependable Performance & Durability (Part No.304)

Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26E1066)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1527)

Carquest Premium – Ignition Coil (Part No.EBC1464)

DENSO – Direct Ignition Coil – Original Equipment Quality (Part No.673-6014)

Delphi – Ignition Coil (Part No.GN10180)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBE1838)

Carquest Premium – Ignition Coil (Part No.EBC1677)

Carquest Premium – Distributor Cap (Part No.CAE1632)

Carquest Premium – Ignition Coil (Part No.EBC1677)

Carquest Premium – Distributor Cap (Part No.CAE1632)

Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.103)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP103)

Champion – Copper Plus Spark Plug (RS9YC): Dependable Performance & Durability (Part No.304)

Dorman – Help – Spark Plug Non-Foulers – 14mm Tapered Seat (Part No.42008)

NGK – V-Power Nickel Spark Plug (BR6EF): Enhanced Ignitability & Performance (Part No.3177)

Autolite – Platinum Spark Plug (AP103): Improved Performance & Durability (Part No.AP103)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.53)

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP103)

ACDelco – Double Platinum Spark Plug: Long-Lasting Performance & Durability (Part No.41-812)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT22 (Part No.5327)

Champion – Iridium Spark Plug (RS8WYPB5): Maximum Performance & Longevity (Part No.9808)

Champion – Double Platinum Power Spark Plug (RS9PYP4): Enhanced Durability & Performance (Part No.7304)

Motorcraft – Spark Plug: Reliable Ignition with Nickel Electrode Design (Part No.SP-505-AX)