Bosch HR7MII30T Spark Plug

Overview of Bosch HR7MII30T Spark Plug

The Bosch HR7MII30T spark plug is engineered for reliable ignition performance in select Ford and Lincoln vehicles. Designed with iridium center electrode technology, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Standard ground electrode design with nickel-yttrium tip
• 6000 ohm resistor to reduce electrical noise
• Tapered seat type with 14mm thread diameter and 25mm reach
• Pre-gapped to 0.8 mm for optimal spark delivery
• Hex size 16 mm for standard installation tools
• Compatible with 4-cycle engines

OE Fine Wire Iridium Product Line Details

The Bosch OE Fine Wire Iridium line focuses on precision-engineered spark plugs that utilize fine wire iridium center electrodes. This design improves ignition efficiency and longevity compared to conventional plugs. The HR7MII30T spark plug benefits from this technology, providing consistent spark performance and resistance to electrode wear, making it suitable for modern Ford and Lincoln engines.

Technical Specifications and Features

This spark plug features a ceramic projected insulator that enhances voltage insulation and heat dissipation. The center electrode core is composed of nickel-yttrium and copper, which supports thermal conductivity and durability. The single ground electrode with a standard tip design ensures stable spark formation. With a manufacturer heat range of 7, the HR7MII30T is optimized for moderate operating temperatures. The resistor built into the plug reduces electromagnetic interference, protecting vehicle electronics.

Compatible Vehicles and Applications

• Ford Escape
• Ford Explorer
• Ford Focus
• Ford Fusion
• Ford Mustang
• Ford Taurus
• Lincoln MKC
• Lincoln MKT
• Lincoln MKZ

This spark plug is designed specifically for these Ford and Lincoln models equipped with 4-cycle engines, ensuring proper fitment and performance.

Common Issues Addressed by Bosch HR7MII30T

• Engine misfires due to worn or fouled spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting the engine in cold conditions
• Rough idling or hesitation during acceleration
• Electrical interference affecting onboard electronics

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.8 mm as specified. Use a 16 mm socket wrench for proper torque application. Ensure the tapered seat is clean and free of debris to maintain a secure seal. Avoid over-tightening to prevent thread damage. It is recommended to replace all spark plugs simultaneously for balanced engine performance.

Quality Assurance and Warranty

Bosch spark plugs, including the HR7MII30T, are manufactured to meet OEM standards for fit, form, and function. The use of high-quality materials such as iridium and nickel-yttrium alloys ensures durability and consistent performance. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for exact warranty terms.