1978 Mercedes-Benz 450SL Ignition and Tune-Up Products

Name: Bosch Distributor Rotor
Brand: Bosch
SKU: F202024507BOS
Price: 68.17 USD

Below you will find various in-demand Mercedes-Benz Ignition and Tune-Up Products, components and accessories for your 1978 450SL. Advance Auto Parts has popular 450SL parts like Spark Plugs, Ignition Electronic Parts, Ignition Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other 450SL model years including 1973, 1974, 1975, 1976, 1977, 1979, 1980 and more. Select a category of 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products below and start saving instantly.

Popular 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products Categories

Spark Plugs

Spark Plug Boots

Standard Spark Plug Wires

Distributor Cap Kits

Ignition Module and Controls

Distributor Rotor Buttons

Spark Plug Non-Foulers

Single Spark Plug Wires

Ignition Wire Holders

Ignition Wire Connectors

Essential Ignition and Tune-Up Products for 1978 Mercedes-Benz 450SLs

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$68.17

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

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$6.49

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$72.99

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$262.18

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

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$6.49

Autolite® Double Platinum spark plugs have a platinum-to-platinum design that decreases gap erosion, reduces misfires, and provides improved durability, leading to longer service life. It provides superior performance over copper and platinum plugs primarily used in distributorless ignition system (DIS) engines.

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.

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$11.79

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 exceptional acceleration and improved fuel efficiency, making them ideal for performance enthusiasts.
Extreme Ignitability and Anti-Fouling: These spark plugs offer extreme ignitability and exceptional resistance to fouling, ensuring reliable performance in various driving conditions.

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$9.99

Autolite® Iridium XP Enhanced Alloy Technology Spark Plugs is one of the brand’s most technologically advanced spark plugs ever. These spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance. Autolite® spark plugs are the best alternativ e to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.

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$420.22

Programa specializes in BMW, Mercedes Benz, Volvo, Porsche and Saab remanufactured ignition control units. Remanufacturing Process

Product Features:

Complete visual inspection.
Boards and components are repaired or replaced.
Any test that fails to meet OEM specifications is repaired or replaced.
Once the ICU meets all OEM specifications, the unit is reassembled, sealed and packaged.

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$5.81

Ignition Wire Holder

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$14.96

Ignition Wire

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$289.99

NGK tinned copper core wire sets provide excellent OE fit, performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. As required on certain Europ

Product Features:

PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier

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$158.96

The Beru Ignition Wires comply exactly with OEM requirements and thus guarantee precise fitting, optimal engine performance and economical fuel consumption.

Product Features:

OE-Equivalent and Direct fit for easy Installation.
Copper core construction
Resistant to high voltages up to 40,000 Volts.
Absolutely waterproof.
Resistant to high temperatures, corrosion and vibration
Reliable connection system.
Ignition noise suppressed. (VDE standard).

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$197.10

The Bremi ignition wire set utilizes OE connectors and a copper core silicone wire that is waterproof, resistant to corrosion, high temperatures and vibration.

Product Features:

OE-Equivalent.
OEM style connectors for easy Installation.
Resistant to high temperatures, corrosion and vibration.
Ignition noise suppressed.

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$65.49

Spark Plug Wire Set

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$284.21

The Beru Ignition Wires comply exactly with OEM requirements and thus guarantee precise fitting, optimal engine performance and economical fuel consumption.

Product Features:

OE-Equivalent and Direct fit for easy Installation.
Copper core construction
Resistant to high voltages up to 40,000 Volts.
Absolutely waterproof.
Resistant to high temperatures, corrosion and vibration
Reliable connection system.
Ignition noise suppressed. (VDE standard).

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$61.46

The task of the connector is to provide a reliable connection and transfer the electrical power – under extreme operating conditions. BERU connectors are designed in accordance with OEM requirements and equipped with original connecting pieces – irrespective of whether as a spark plug connector, ignition coil connector or distributor connector.

Product Features:

Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$36.59

The Bosch Ignition Wire Connector is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$9.99

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

Upgrade your 1978 Mercedes-Benz 450SL with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1978 Mercedes-Benz 450SL, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercedes-Benz or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your 450SL functioning at its best. At Advance Auto Parts, we offer a wide selection of 34 Ignition and Tune-Up Products for the 1978 Mercedes-Benz 450SL, designed to meet your needs without breaking the bank. From Spark Plug replacements to Ignition Electronic Parts 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 1978 Mercedes-Benz 450SL at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $2.79 to $420.22, with an average price of $59.70. Our 34 Ignition and Tune-Up Products in stock come from 14 trusted brands, so you’re sure to find the right part for your 1978 Mercedes-Benz 450SL 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 1978 Mercedes-Benz 450SL, 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 $5.99 and boast an impressive 4.8 stars average rating from customers. Champion and Autolite also bring quality to the table, with Ignition and Tune-Up Products available starting at $3.99, and at an average 4.7 stars rating. With 173 customer reviews and counting, our 1978 Mercedes-Benz 450SL 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 1978 Mercedes-Benz 450SL is always ready to roll. We’re committed to providing you with everything you need to keep your 450SL in top shape, all in one place. Start shopping confidently below for your 1978 Mercedes-Benz 450SL!

Best-Selling Spark Plugs for 1978 Mercedes-Benz 450SLs

Enhance the driving experience in your Mercedes-Benz with 22 quality Spark Plug components, starting at $2.79.

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$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 reli

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

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$5.99

NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

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

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$2.79

U-Groove design provides better ignitability for increased engine efficiency.

Product Features:

Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100% pre-fired to assure reliable operation
U-Groove Conventional

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$4.99

Dependable Performance, OE Replacement, RN14YC. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. The Copper Plus design ensures dependable performance and durability, while the copper core center electrode allows for accurate control of heat range, extending the spark plug’s life. Built to ISO and SAE standards, it offers superior corrosion resistance and proven performance. The nickel center electrode tip and flat seat type further enhance its reliability, making it a top choice for maintaining your engine’s efficiency.

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
Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and flat seat type, this spark plug enhances reliability and helps maintain your engine’s efficiency.

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$4.99

Autolite® Platinum spark plugs are engineered with a platinum center electrode firing tip that provides improved performance and increased durability, making it a reliable choice for all older engine applications and designs. Its platinum design delivers quicker firing, smoother starts, for better acceleration, and improved fuel efficiency.

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.

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$4.99

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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$11.99

Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).

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░ 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
Superior Performance: Patented technology allows the Iridium Power plug to outperform any other spark plug on the market, delivering more horsepower and better fuel efficiency.
Low Voltage Requirement: Requires 5,000 volts less to fire compared to conventional spark plugs, making it highly efficient and reliable under extreme conditions.
Enhanced Engine Starts: Experience faster and easier engine starts with fewer misfires, even under heavy loads, thanks to the advanced design of the DENSO Iridium Power spark plug.
Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, ensuring long-lasting performance and reliability.

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$5.99

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

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$6.99

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.

from

$11.79

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 exceptional acceleration and improved fuel efficiency, making them ideal for performance enthusiasts.
Extreme Ignitability and Anti-Fouling: These spark plugs offer extreme ignitability and exceptional resistance to fouling, ensuring reliable performance in various driving conditions.

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$6.99

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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$3.99

Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.

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.

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$5.99

ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These 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. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:

GM regularly updates production and service part designs to integrate new materials and technologies
High-Quality Copper Core: Designed with high-quality copper cores for reliable performance and efficient operation.
Nickel Center Electrode Tip: Features a nickel center electrode tip for enhanced durability and consistent performance.
Outstanding Suppression Characteristics: Engineered to deliver outstanding suppression characteristics, ensuring smooth engine operation.
OE Replacement: These spark plugs are true OE parts installed during GM vehicle production, ensuring perfect fit, form, and function.
Versatile Applications: Providing a high-quality replacement for a wide range of vehicles.

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$9.99

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

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$5.79

Twin-Tip design enables faster flame propagation for more complete combustion.

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$10.99

Durability of an OE style plug combined with Power & Torque of high performance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power & Torque of high performance.
Withstands temperatures greater than 4000░ Fahrenheit
Iridium TT
Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
Reliable and Durable: The flat seat type design ensures a secure fit and consistent performance throughout its lifespan.

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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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$4.49

Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spark plugs are available for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.

Product Features:

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.

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$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

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$14.96

Ignition Wire

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$11.99

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

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$5.52

The Bosch Super Plus Spark Plug utilizes an yttrium enhanced copper core center electrode, making it one of the longest lasting copper core spark plug on the market – by 50% versus even OE plugs. Bosch Super Plus also features a tapered, v-profile ground electrode for improved cold starts and better fuel ignitability. Center Electrode Core Material: Nickel-Yttrium and Copper – Center Electrode Tip Material: Nickel-Yttrium – Ground Electrode Tip Material: Nickel-Chromium

Product Features:

OE-Equivalent and direct fit application.
Heavy-duty yttrium-enhanced copper core center electrode.
Tapered, v-profile nickel chromium ground electrode.
Nickel-plated rolled threads.
Metal glass fused resistor.
Angular, five-ribbed insulator design.
Electrode gap is factory set and never requires adjustment.
Anti-seize and corrosion protection. Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines

Most Popular 1978 Mercedes-Benz 450SL Ignition Electronic Parts

Customize your Mercedes-Benz with 1 Ignition Electronic Parts products like Ignition Module and Controls, all priced under $420.22.

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from

$420.22

Programa specializes in BMW, Mercedes Benz, Volvo, Porsche and Saab remanufactured ignition control units. Remanufacturing Process

Product Features:

Complete visual inspection.
Boards and components are repaired or replaced.
Any test that fails to meet OEM specifications is repaired or replaced.
Once the ICU meets all OEM specifications, the unit is reassembled, sealed and packaged.

Top Picks for 1978 Mercedes-Benz 450SL Ignition Boots

Upgrade Mercedes-Benz 450SLs with top-quality Ignition Boots parts, including 2 OEM and aftermarket selections for your 1978 model.

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$158.96

The Beru Ignition Wires comply exactly with OEM requirements and thus guarantee precise fitting, optimal engine performance and economical fuel consumption.

Product Features:

OE-Equivalent and Direct fit for easy Installation.
Copper core construction
Resistant to high voltages up to 40,000 Volts.
Absolutely waterproof.
Resistant to high temperatures, corrosion and vibration
Reliable connection system.
Ignition noise suppressed. (VDE standard).

from

$289.99

PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier

In-Demand Ignition Wires for 1978 Mercedes-Benz 450SLs

Select from 5 premium Ignition Wires parts for your 1978 Mercedes-Benz 450SL, with prices ranging from $5.81 to $284.21.

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from

$197.10

The Bremi ignition wire set utilizes OE connectors and a copper core silicone wire that is waterproof, resistant to corrosion, high temperatures and vibration.

Product Features:

OE-Equivalent.
OEM style connectors for easy Installation.
Resistant to high temperatures, corrosion and vibration.
Ignition noise suppressed.

from

$284.21

The Beru Ignition Wires comply exactly with OEM requirements and thus guarantee precise fitting, optimal engine performance and economical fuel consumption.

Product Features:

OE-Equivalent and Direct fit for easy Installation.
Copper core construction
Resistant to high voltages up to 40,000 Volts.
Absolutely waterproof.
Resistant to high temperatures, corrosion and vibration
Reliable connection system.
Ignition noise suppressed. (VDE standard).

from

$61.46

Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

from

$36.59

The Bosch Ignition Wire Connector is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

from

$5.81

Ignition Wire Holder

Most Sold 1978 Mercedes-Benz 450SL Distributors

Explore our best-selling Mercedes-Benz parts for the 1978 450SL among 4 OEM and aftermarket options starting from $6.49.

show more show less

from

$72.99

from

$262.18

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

from

$68.17

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

from

$6.49

Top-Rated Ignition and Tune-Up Products Brands For Your 1978 Mercedes-Benz 450SL

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1978 Mercedes-Benz 450SLs. 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 1978 450SL start at just $3.99 and are rated as high as 4.8 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 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 1978 Mercedes-Benz 450SL, 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 1978 Mercedes-Benz 450SL. With over 3 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 $5.99. Plus, with over 103 customer reviews and an average rating of 4.8 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.

from $5.99

(53)

OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR5ES

“I needed a tune up on my Golf cart and NGK sparkplugs are the best”

from $5.99

(23)

OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BPR5EY

“Heat performance. No issues at all.”

from $5.99

(27)

G-Power Spark Plug: Single Platinum Tip Design, BPR5EGP

“They spark great!!!”

Popular Champion 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products

Champion auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1978 Mercedes-Benz 450SL owner should feel confident when installing genuine Champion parts in their vehicle. To ensure the best fit and performance for your 1978 450SL, Advance Auto Parts carries a full inventory of 2 Champion Ignition and Tune-Up Products. Plus you will be keeping your Mercedes-Benz in peak condition while saving money because prices on these Champion Ignition and Tune-Up Products range up to $4.99, plus, with more than 4 customer reviews and an impressive 4.7 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $4.99

(3)

Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC

“Fine”

from $4.99

(1)

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

“Used Champion since i was a kid”

FAQs for 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 1978 Mercedes-Benz 450SLs?

Out of 34 Ignition and Tune-Up Products that fit 1978 Mercedes-Benz 450SLs, the following parts are the top sellers:

U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, W16EXR-U (20650369) – $2.79
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (15650145) – $6.99
Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC (5470019) – $4.99

What’s the price range for 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 1978 Mercedes-Benz 450SL start at $2.79 and go up to $420.22 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 1978 Mercedes-Benz 450SL?

The average price for Ignition and Tune-Up Products for the 1978 Mercedes-Benz 450SL is $59.70. 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 Mercedes-Benz 450SL model years?

Yes, we currently carry Ignition and Tune-Up Products for 6 model years of Mercedes-Benz 450SLs between 1973 and 1980. Ignition and Tune-Up Products are bought most frequently for the following model years: 1980, 1979, 1977, 1976, 1975, 1974, and 1973.

What are the cheapest Ignition and Tune-Up Products for my 1978 Mercedes-Benz 450SL?

The cheapest 1978 Mercedes-Benz 450SL Ignition and Tune-Up Products we carry in stock are:

U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, W16EXR-U (20650369) – $2.79
Copper Resistor Spark Plug (5390214) – $3.99
Spark Plug (AGS32C) (89022224) – $4.49
Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC (5470019) – $4.99
Single Platinum Spark Plug (5393876) – $4.99

What are the top-rated Ignition and Tune-Up Products that fit the 1978 Mercedes-Benz 450SL?

Out of 173 reviews by customers, our 1978 Mercedes-Benz 450SL 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 1978 Mercedes-Benz 450SL and their top-rated products:

Spark Plugs
- Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC (5470019) – $4.99
- G-Power Spark Plug: Single Platinum Tip Design, BPR5EGP (15650099) – $5.99
- OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR5ES (5392543) – $5.99
Ignition Boots
- Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC (5470019) – $4.99
- G-Power Spark Plug: Single Platinum Tip Design, BPR5EGP (15650099) – $5.99
- OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR5ES (5392543) – $5.99

What types of Ignition and Tune-Up Products do you sell for my 1978 Mercedes-Benz 450SL?

As of 4/10/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1978 Mercedes-Benz 450SL:

Can I get help with 1978 Mercedes-Benz 450SL 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 Mercedes-Benz Ignition and Tune-Up Products and more.

What is your return policy for Mercedes-Benz 450SL Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Mercedes-Benz 450SL 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.

1978 Mercedes-Benz 450SL Ignition and Tune-Up Products

Bosch – Bosch Distributor Rotor (Part No.F202024507BOS)

Carquest Premium – Distributor Rotor (Part No.DAA1239)

Carquest Premium – Distributor Cap (Part No.CAC1407)

Bosch – Bosch Distributor Cap (Part No.F201024477BOS)

Autolite – Double Platinum Spark Plug (Part No.APP63)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, BPR5EIX (Part No.6597)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP63)

Programa – Ignition Control Unit, Remanufactured (Part No.F600051903PRO)

A.P.A. URO – Ignition Wire Holder (Part No.F106014598APA)

Beru – Ignition Wire (Part No.F1030380899BER)

NGK – Spark Plug Wire Set (Part No.54385)

Beru – Beru Ignition Wire Set (Part No.F1020419161BER)

Bremi – Ignition Wire Set (Part No.F102072659BRM)

Intermotor Red Wire – Spark Plug Wire Set (Part No.57577)

Beru – Beru Ignition Wire Set (Part No.F1020419153BER)

Beru – Beru Ignition Wire Connector (Part No.F104011670BER)

Bosch – Bosch Ignition Wire Connector (Part No.F105013369BOS)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

NGK – OE Series Standard Nickel Spark Plug: Conventional Tip Design, BPR5ES (Part No.7734)

NGK – G-Power Spark Plug: Single Platinum Tip Design, BPR5EGP (Part No.7082)

DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, W16EXR-U (Part No.3031)

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RN14YC (Part No.405)

Autolite – Single Platinum Spark Plug (Part No.AP64)

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

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IW16 (Part No.5305)

NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BPR5EY (Part No.1233)

Autolite – Double Platinum Spark Plug (Part No.APP64)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, BPR5EIX (Part No.6597)

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

Autolite – Copper Resistor Spark Plug (Part No.64)

ACDelco – Copper Core Spark Plug: Original Equipment Replacement (Part No.R43XLS)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

DENSO – PW16TT Platinum TT Spark Plug (Part No.4501)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IW16TT (Part No.4708)

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

Motorcraft – Spark Plug (AGS32C) (Part No.SP-436)

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

Beru – Ignition Wire (Part No.F1030380899BER)

NGK – Spark Plug (Part No.95525)

Bosch – Super Plus (Copper Core) Spark Plug (Part No.F1000293945BOS)

Programa – Ignition Control Unit, Remanufactured (Part No.F600051903PRO)

Beru – Beru Ignition Wire Set (Part No.F1020419161BER)

NGK – Spark Plug Wire Set (Part No.54385)

Bremi – Ignition Wire Set (Part No.F102072659BRM)

Beru – Beru Ignition Wire Set (Part No.F1020419153BER)

Beru – Beru Ignition Wire Connector (Part No.F104011670BER)

Bosch – Bosch Ignition Wire Connector (Part No.F105013369BOS)

A.P.A. URO – Ignition Wire Holder (Part No.F106014598APA)

Carquest Premium – Distributor Cap (Part No.CAC1407)

Bosch – Bosch Distributor Cap (Part No.F201024477BOS)

Bosch – Bosch Distributor Rotor (Part No.F202024507BOS)

Carquest Premium – Distributor Rotor (Part No.DAA1239)