Bosch 6720 Spark Plug

Overview of Bosch OE Fine Wire Platinum Spark Plug 6720

The Bosch OE Fine Wire Platinum Spark Plug 6720 is engineered for reliable ignition performance in select Chrysler, Dodge, Jeep, and Volkswagen vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 6720
• Brand Line: OE Fine Wire Platinum
• Resistance: 6000 ohms
• Ground Electrode Tip Design: Tapered
• Center Electrode Tip Material: Platinum
• Ground Electrode Core Material: Copper
• Pre-Gap Size: 1.3 mm
• Hex Size: 16 mm
• Thread Diameter: 14 mm
• Reach: 25 mm
• Insulator Material: Ceramic (Projected type)
• Manufacturer Heat Range: 8
• Resistor: Yes
• Designed for 4-cycle engines

Details on Bosch OE Fine Wire Platinum Spark Plug Technology

The OE Fine Wire Platinum line from Bosch features spark plugs with fine wire platinum center electrodes that provide stable and efficient ignition. The platinum tip enhances durability and wear resistance, contributing to longer service life compared to conventional plugs. This spark plug incorporates a tapered ground electrode tip made from nickel-yttrium and copper, which improves spark exposure and combustion efficiency. The copper core in the ground electrode aids in heat dissipation, while the ceramic projected insulator ensures reliable insulation and voltage control. With a resistance of 6000 ohms, this resistor spark plug reduces electrical noise interference with vehicle electronics.

Compatible Vehicles and Applications

This Bosch spark plug 6720 is compatible with various models including Chrysler Caravan, Grand Caravan, Pacifica, Town & Country, and Voyager; Dodge Caravan and Grand Caravan; Jeep Wrangler; and Volkswagen Routan. It is specifically designed for 4-cycle engines in these vehicles, ensuring proper fit and function.

• Improves ignition reliability in Chrysler, Dodge, Jeep, and Volkswagen 4-cycle engines
• Helps resolve misfires and rough idling
• Supports consistent engine starting and acceleration
• Reduces spark plug fouling and wear
• Maintains optimal combustion efficiency

Installation Notes and Tips

When installing the Bosch OE Fine Wire Platinum Spark Plug 6720, ensure the pre-gap size of 1.3 mm is maintained or adjusted according to vehicle manufacturer specifications. Use a 16 mm socket for proper torque application. The 25 mm reach and 14 mm thread diameter must match the engine’s cylinder head specifications to avoid damage. It is recommended to replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Bosch OE Fine Wire Platinum spark plugs are manufactured to meet strict OEM standards for durability and performance. The use of high-quality materials such as platinum and copper ensures consistent operation under various driving conditions. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality guarantees. Always consult Bosch or vehicle documentation for warranty information.