1981 Bentley Mulsanne Ignition and Tune-Up Products

Name: Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
Brand: Autolite
SKU: APP3924
Price: 6.79 USD
Rating: 5.0 (72 reviews)

Below you will find various in-demand Bentley Ignition and Tune-Up Products, components and accessories for your 1981 Mulsanne. Advance Auto Parts has popular Mulsanne parts like Ignition Coils and Boots, Ignition Wires, Spark Plugs and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Mulsanne model years including 1989, 1990, 1991, 1992, 2011, 2012, 2013, 2014, 2015 and more. Select a category of 1981 Bentley Mulsanne Ignition and Tune-Up Products below and start saving instantly.

Popular 1981 Bentley Mulsanne Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Optional Spark Plug Wires

Essential Ignition and Tune-Up Products for 1981 Bentley Mulsannes

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$6.79

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:

Works to optimize engine performance for a longer life and improved fuel economy
OE design
Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
Platinum ball welding process provides a consistent point of contact for enhanced adhesion

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$8.49

Champion® Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

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

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$3.49

With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite continues to set the standard. Designed and engineered in the USA, these spark plugs feature a copper cored center electrode for higher thermal conductivity and a specially engineered high nickel alloy center and ground electrode for extended life. The high alumina ceramic ensures high dielectric strength, while the leak-proof, heat-fused internal seal guarantees durability. Additionally, the multi-rib insulator prevents flash-over, making these spark plugs a reliable choice for any vehicle.

Product Features:

Copper cored center electrode for higher thermal conductivity
Specially engineered high nickel alloy center and ground electrode for extended life
High alumina ceramic for high dielectric strength
Leak proof, heat fused internal seal for durability
Multi-rib insulator prevents flash-over
Quick Starts and Smooth Acceleration: Designed to deliver quick starts and smooth acceleration, ensuring a reliable performance for your vehicle.
Enhanced Fuel Economy: Engineered to provide good fuel economy, helping you save on fuel costs.

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$3.99

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.

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$9.99

Our best spark plug! 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

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$9.49

Manufactured to the strictest OE performance, durability and emissions standards.

Product Features:

OE grade platinum on both center and ground electrodes
Premium shell construction with machine-rolled threads
Superior thermal conductivity
Sustained spark performance over 60,000 miles
Reduced secondary required voltage, increased ignition efficiency
Satisfied customers, reduced shop comebacks
Double Platinum

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$6.79

ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. 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:

Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
Pure copper core provides great heat transfer and helps maximize plug durability
Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
Ribless insulator helps optimize plug to boot seal
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
High-Quality Suppressors: These spark plugs are equipped with high-quality suppressors that help prevent misfiring, ensuring smooth and efficient engine operation.

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$4.79

Champion® Platinum Power spark plugs deliver powerful performance with their premium design. Featuring a platinum center electrode for long life and a fine-wire center electrode for greater ignitability, these spark plugs ensure optimal engine performance. The V-trimmed ground electrode promotes sharper spark focus, while the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature. Additionally, the platinum-tipped center wire resists wear and helps maintain the proper gap specification throughout the life of the plug, making it a reliable choice for your vehicle.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Platinum Center Electrode: The Champion Platinum Power Spark Plug features a platinum center electrode for extended durability and long-lasting performance.

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$6.99

Champion® Double Platinum Power spark plugs deliver more powerful performance with their premium design. Featuring a platinum center and ground electrode, these spark plugs offer greater wear resistance and maintain a stable operating temperature under all engine loads. The fine-wire center electrode ensures greater ignitability, while the V-trimmed ground electrode promotes sharper spark focus. The exclusive Heat-Active alloy allows the electrodes to reach optimal temperature, ensuring maximum life and performance.

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
OE Replacement: Designed as an OE replacement, ensuring compatibility and reliable performance for your vehicle.

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$17.99

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.

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$41.49

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.

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$61.99

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.

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$82.99

Most modern electronic ignition systems require suppression style wires to preserve sensitive components. Flame-Thrower 8mm Custom fit MAGx2 wires provide enhanced RFI suppression and dual current paths for more power delivered to the spark plug. Our custom wire sets have factory terminated ends for a superior connection and perfect fit, without cutting, crimping and splicing.

Product Features:

Two current paths for reliability and redundancy. -Primary path: Spiral wound stainless steel alloy.-Secondary path: Carbon impregnated fiberglass center core.
Low 500 ohm per foot resistance.
8mm Silicone jacket to resist high temperatures, moisture, oil and chemicals.
EPDM (Ethylene Propylene Diene Methylene) inner insulation for superior heat resistance and prevention of arcing and voltage leaks.
Fiberglass reinforcing braid for added strength and flexibility.

Upgrade your 1981 Bentley Mulsanne with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1981 Bentley Mulsanne, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Bentley or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Mulsanne functioning at its best. At Advance Auto Parts, we offer a wide selection of 16 Ignition and Tune-Up Products for the 1981 Bentley Mulsanne, designed to meet your needs without breaking the bank. From Ignition Coils and Boot replacements to Ignition Wires 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 1981 Bentley Mulsanne at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $3.49 to $82.99, with an average price of $17.03. Our 16 Ignition and Tune-Up Products in stock come from 7 trusted brands, so you’re sure to find the right part for your 1981 Bentley Mulsanne 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 1981 Bentley Mulsanne, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like NGK, Champion, Autolite, and more. NGK Ignition and Tune-Up Products start at just $3.99 and boast an impressive 5 stars average rating from customers. Champion and Autolite also bring quality to the table, with Ignition and Tune-Up Products available starting at $3.49, and at an average 5 stars rating. With 211 customer reviews and counting, our 1981 Bentley Mulsanne 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 Fluids and Chemicals, Wipers and Related Products and more to make sure your 1981 Bentley Mulsanne is always ready to roll. We’re committed to providing you with everything you need to keep your Mulsanne in top shape, all in one place. Start shopping confidently below for your 1981 Bentley Mulsanne!

Best-Selling Ignition Coils and Boots for 1981 Bentley Mulsannes

Enhance the driving experience in your Bentley with 3 quality Ignition Coils and Boot components, starting at $17.99.

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$41.49

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.

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$17.99

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

$61.99

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.

Top Picks for 1981 Bentley Mulsanne Spark Plugs

Upgrade Bentley Mulsannes with top-quality Spark Plugs parts, including 12 OEM and aftermarket selections for your 1981 model.

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$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 NGK V-Power Nickel Spark Plug enhances ignitability and overall engine performance.

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$4.99

Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Product Features:

Copper Plus – Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance

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$3.49

Copper cored center electrode for higher thermal conductivity
Specially engineered high nickel alloy center and ground electrode for extended life
High alumina ceramic for high dielectric strength
Leak proof, heat fused internal seal for durability
Multi-rib insulator prevents flash-over
Quick Starts and Smooth Acceleration: Designed to deliver quick starts and smooth acceleration, ensuring a reliable performance for your vehicle.
Enhanced Fuel Economy: Engineered to provide good fuel economy, helping you save on fuel costs.

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$4.99

ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:

Black Onyx coating helps reduce corrosion
Copper core provides great heat transfer and helps maximize plug durability
Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
Available for use in Marine applications
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

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$4.79

With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite Platinum spark plugs are designed and engineered in the USA to deliver exceptional performance. Featuring a high nickel alloy side electrode that maintains a precise gap and a full platinum tip that ensures virtually no gap erosion, these spark plugs offer long-lasting durability. The necked-down center electrode fires quicker and cleaner with less voltage, resulting in easier starts, quicker acceleration, and improved fuel economy compared to standard plugs.

Product Features:

High nickel alloy side electrode maintains precise gap
Full platinum tip assures virtually no gap erosion for long life
Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Improved Fuel Economy: Designed to enhance fuel efficiency compared to standard spark plugs.
Engineered in the USA: Backed by over 100 years of engineering expertise and a legacy of more than 11 billion plugs sold.

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$3.99

Champion® Platinum Power spark plugs deliver powerful performance with their premium design. Featuring a platinum center electrode for long life and a fine-wire center electrode for greater ignitability, these spark plugs ensure optimal engine performance. The V-trimmed ground electrode promotes sharper spark focus, while the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature. Additionally, the platinum-tipped center wire resists wear and helps maintain the proper gap specification throughout the life of the plug. With a flat seat type and integrated resistor, this spark plug is an ideal OE replacement.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Integrated Resistor and Flat Seat Type: Equipped with an integrated resistor and flat seat type, making it an ideal OE replacement for various engines.

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$3.99

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.

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$7.49

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 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.

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$9.79

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.

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$6.49

Works to optimize engine performance for a longer life and improved fuel economy
OE design
Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
Platinum ball welding process provides a consistent point of contact for enhanced adhesion

from

$8.29

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

$4.79

Product Features:

SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and 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
RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs

Top-Rated Ignition and Tune-Up Products Brands For Your 1981 Bentley Mulsanne

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1981 Bentley Mulsannes. Below you’ll find some of our best rated Ignition and Tune-Up Products from NGK, Champion, and Autolite, and more. Ignition and Tune-Up Products from these brands that fit a 1981 Mulsanne start at just $3.49 and are rated as high as 5 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular NGK 1981 Bentley Mulsanne Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1981 Bentley Mulsanne, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. NGK ticks all of those boxes. We offer a wide selection of NGK Ignition and Tune-Up Products, specifically designed for the 1981 Bentley Mulsanne. With over 4 NGK 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 $3.99, with an average price of just $5.89. Plus, with over 38 customer reviews and an average rating of 5 stars, you can trust that our NGK 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.

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$9.79

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Iridium IX Spark Plug: Single Iridium Fine Wire, GR4IX

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SPARK PLUG-G POWER

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OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, GR4

“Found my new go to first place. No one else has plugs in stock here for my classic ride. Thanks AAP!”

Popular Champion 1981 Bentley Mulsanne Ignition and Tune-Up Products

Champion auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1981 Bentley Mulsanne owner should feel confident when installing genuine Champion parts in their vehicle. To ensure the best fit and performance for your 1981 Mulsanne, Advance Auto Parts carries a full inventory of 2 Champion Ignition and Tune-Up Products. Plus you will be keeping your Bentley in peak condition while saving money because prices on these Champion Ignition and Tune-Up Products range from $3.99 to $4.99, plus, with more than 19 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

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Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RN14PMC

“Used Champion since i was a kid”

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$4.99

(18)

Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN12YC

“Champion spark plugs fire clean, They are dependable for a responsive ride on my 1989 Harley Davidson Electra glide.”

FAQs for 1981 Bentley Mulsanne Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 1981 Bentley Mulsannes?

Out of 16 Ignition and Tune-Up Products that fit 1981 Bentley Mulsannes, the following parts are the top sellers:

OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, GR4 (19650104) – $4.99
Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN12YC (5470018) – $4.99
OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR4ES SOLID (18090233) – $3.99

What’s the price range for 1981 Bentley Mulsanne Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 1981 Bentley Mulsanne start at $3.49 and go up to $82.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 1981 Bentley Mulsanne?

The average price for Ignition and Tune-Up Products for the 1981 Bentley Mulsanne is $17.03. 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 Bentley Mulsanne model years?

Yes, we currently carry Ignition and Tune-Up Products for 20 model years of Bentley Mulsannes between 1982 and 2019. Ignition and Tune-Up Products are bought most frequently for the following model years: 2015, 2014, 2013, 2012, 2011, 1992, 1991, 1990, and 1989.

What are the cheapest Ignition and Tune-Up Products for my 1981 Bentley Mulsanne?

The cheapest 1981 Bentley Mulsanne Ignition and Tune-Up Products we carry in stock are:

Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (5390222) – $3.49
OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR4ES SOLID (18090233) – $3.99
Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RN14PMC (5470037) – $3.99
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (5393884) – $4.79
SPARK PLUG-G POWER (18090107) – $4.79

What are the top-rated Ignition and Tune-Up Products that fit the 1981 Bentley Mulsanne?

Out of 211 reviews by customers, our 1981 Bentley Mulsanne 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 1981 Bentley Mulsanne and their top-rated products:

Spark Plugs
- Conventional Spark Plug (5391091) – $4.99
- Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RN14PMC (5470037) – $3.99
- Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN12YC (5470018) – $4.99

What types of Ignition and Tune-Up Products do you sell for my 1981 Bentley Mulsanne?

As of 2/5/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1981 Bentley Mulsanne:

Can I get help with 1981 Bentley Mulsanne 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 Bentley Ignition and Tune-Up Products and more.

What is your return policy for Bentley Mulsanne Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Bentley Mulsanne 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.

1981 Bentley Mulsanne Ignition and Tune-Up Products

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP3924)

Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RC12WYPB4 (Part No.9201)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.65)

NGK – OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR4ES SOLID (Part No.6578)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3924)

DENSO – Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK16PR11 (Part No.3264)

ACDelco – RAPIDFIRE Premium Platinum Tip Copper Core Spark Plug: Reduces Misfires & Enhances Durability (Part No.4)

Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RC12PYC (Part No.3071)

Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RC12PYP (Part No.7071)

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

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1487)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1464)

PerTronix – 808480 Flame-Thrower Spark Plug Wires 8 cyl 8mm Universal 180 Degree Red (Part No.808480)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1487)

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

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1464)

PerTronix – 808480 Flame-Thrower Spark Plug Wires 8 cyl 8mm Universal 180 Degree Red (Part No.808480)

NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, GR4 (Part No.2635)

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN12YC (Part No.404)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.65)

ACDelco – Conventional Spark Plug (Part No.R44XLS)

Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP65)

Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RN14PMC (Part No.3405)

NGK – OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR4ES SOLID (Part No.6578)

E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.46)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, GR4IX (Part No.97382)

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP65)

ACDelco – Double Platinum Spark Plug (Part No.41-828)

NGK – SPARK PLUG-G POWER (Part No.2763)