Bosch 6727 Spark Plug

Overview of Bosch OE Fine Wire Platinum Spark Plug 6727

The Bosch OE Fine Wire Platinum Spark Plug 6727 is engineered for reliable ignition performance in select Ford, Lincoln, Mazda, and Mercury vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 6727
• 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: 1.1 mm
• Hex Size: 16 mm
• Thread Diameter: 14 mm
• Reach: 25 mm
• Manufacturer Heat Range: 8
• Insulator Material: Ceramic
• Spark Plug Type: 4-cycle engines

Features and Specifications

This Bosch spark plug features a tapered ground electrode tip made from nickel-yttrium and copper, paired with a platinum center electrode tip for enhanced durability and stable ignition. The copper core in the ground electrode improves heat dissipation, while the ceramic non-projected insulator ensures electrical insulation and heat resistance. The 6000 ohm resistor reduces electrical noise interference, supporting vehicle electronics. With a pre-gap size of 1.1 mm and a heat range rating of 8, this spark plug is optimized for specific engine conditions found in compatible vehicles.

OE Fine Wire Platinum Product Line Details

The OE Fine Wire Platinum line from Bosch is designed to provide precise ignition performance with fine wire electrodes that reduce voltage requirements and improve ignitability. This product line focuses on durability and consistent spark delivery, making it suitable for modern 4-cycle engines requiring platinum-tipped spark plugs. The 6727 spark plug benefits from this technology by offering a balance of longevity and efficient combustion.

Compatible Vehicles and Applications

This spark plug is compatible with various Ford, Lincoln, Mazda, and Mercury models, including Ford Escape, Fusion, and Tribute; Lincoln MKZ and Milan; Mazda 3, 3 Sport, 5, 6, CX-7, and MX-5 Miata; and Mercury Mariner. It is designed for 4-cycle engines requiring a 14 mm thread diameter and 25 mm reach.

• Improves ignition reliability in Ford Escape and Fusion models
• Supports efficient combustion in Mazda CX-7 and MX-5 Miata engines
• Helps reduce misfires and rough idling in Lincoln MKZ and Milan
• Maintains consistent spark in Mercury Mariner and Tribute vehicles
• Addresses ignition issues related to electrode wear and heat range mismatches

Installation Notes and Tips

• Ensure the spark plug gap is set to 1.1 mm before installation
• Use a 16 mm socket wrench for proper tightening
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to avoid damage to the tapered seat
• Inspect ignition wires and coils for wear during replacement

Quality Assurance and Warranty

Bosch OE Fine Wire Platinum Spark Plug 6727 is manufactured to meet OEM standards for fit, form, and function. The use of high-quality materials such as platinum and copper ensures durability and consistent performance. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship.