Mercedes-Benz 250C Ignition and Tune-Up Products

The Ignition Conversion Kit allows point type ignition systems to be converted to an electronic ignition type system. These universal kits are designed to fit directly into the current distributor with little modification required.

Product Features:

• Product constructed to meet all design and operating characteristics as intended by the manufacturer.

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

Product Features:

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

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

The Ignition Contact Set is used in older vehicle applications to ground the ignition coil primary circuit and create the high secondary voltage required in the ignition process. Connected to the contact set is a condenser designed to absorb the high voltage spike created when the contact set opens.

Product Features:

• Application matched component to ensure the system can be returned to like new condition.
• Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

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.

Autolite Copper spark plugs are crafted to deliver reliable performance and durability, making them an excellent choice for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the nickel-plated shell offers superior corrosion resistance for long-lasting durability. With a high alumina multi-rib ceramic insulator, these spark plugs provide exceptional thermal conductivity and insulation, enhancing strength and reliability. Optimized for fuel efficiency, they help improve fuel economy, saving you money over time. The mid-projection standard center electrode design and flat seat type ensure compatibility with a wide range of applications, while the nickel tip materials on both the center and ground electrodes add to their robust construction. Ideal for quick starts and dependable performance, these spark plugs are a smart investment for maintaining your vehicle’s efficiency.

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.

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

Product Features:

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

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 GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
• ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies
• High-Quality Copper Core: Designed with a high-quality copper core to ensure reliable and efficient performance.
• Nickel Alloy Electrode Tip: Features a nickel alloy center electrode tip for enhanced durability and performance.
• Outstanding Suppression Characteristics: Engineered with superior suppression characteristics to deliver consistent and reliable performance.
• Premium Aftermarket Replacement: Manufactured to meet high standards of fit, form, and function, providing a dependable replacement option for many vehicles.

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

Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered to deliver exceptional performance and reliability for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent ignition and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, making it highly durable under extreme temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for added safety. With a mid-projection standard center electrode and platinum tips on both the center and ground electrodes, this performance-grade spark plug is built to outperform copper and standard platinum plugs. Designed with a flat seat type and integrated resistor, it provides reliable functionality and long-lasting value, making it an ideal choice for demanding engine conditions.

Product Features:

• Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
• The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
• Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
• The multi-rib insulator prevents flash-over.
• Designed with a mid-projection standard center electrode and integrated resistor, this spark plug ensures reliable performance and consistent ignition under demanding engine conditions.

Iridium Power Spark Plug delivers unmatched performance with the world’s smallest iridium center electrode at just 0.4mm, ensuring maximum spark energy for superior combustion. Engineered with patented 360-degree laser welding and a U-groove taper cut ground electrode, it optimizes flame propagation for enhanced engine efficiency. Built to withstand extreme temperatures exceeding 4000 Deg F, its burnished nickel plating offers exceptional resistance to corrosion and high-temperature endurance. Designed for a wide range of applications, including classic and collector cars, this spark plug provides superior horsepower and fuel efficiency while requiring 5,000 volts less to fire compared to conventional plugs. Its durable iridium material and flat seat type ensure long-lasting reliability, while enhanced engine starts reduce misfires even under heavy loads. Experience the pinnacle of spark plug technology with Iridium Power for maximum performance and efficiency.

Product Features:

• World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
• Patented 360-degree laser welding assembly process
• U-groove and taper cut ground electrode to maximize flame propagation.
• Withstands temperatures greater than 4000 degree Fahrenheit
• Burnished nickel plating for high temperature endurance and superior corrosion resistance
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Iridium Power
• Superior Performance: Patented technology allows the Iridium Power plug to outperform any other spark plug, 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: Provides faster and easier starts, reducing the likelihood of misfires even under heavy loads.
• Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, ensuring long-lasting performance and reliability.

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:

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

Intermotor is a complete engine management import line that includes ignition and electrical relays, switches and sensors with a concentration on high technology categories such as computerized engine controls, fuel injection, and emission controls with coverage for every part number with an import nameplate. Intermotor parts are unrivalled for quality, original fit, form, function, and coverage providing a genuine import part in every box. Intermotor is the import leader by design.

Product Features:

• High dielectric-strength engineering polymer prevents breakdown or arcing and ensures long life
• Solid brass segment resists pitting and erosion for extended life
• Utilizes shaft retention clips for proper fit of distributor shaft
• Stainless steel spring ensures positive contact with distributor cap brush while resisting corrosion and wear

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

Product Features:

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