Bosch YR7NE Spark Plug

Reliable Spark Plug for Smart Fortwo Vehicles

The Bosch Nickel YR7NE spark plug is engineered to deliver consistent ignition performance for Smart Fortwo models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 6000 ohms for optimal electrical performance
• Ground Electrode Tip and Center Electrode made of nickel-yttrium alloy
• Pre-gap size of 0.9 mm for precise spark delivery
• Flat seat type with a 16 mm hex size for secure installation
• Thread diameter of 12 mm and reach of 26.5 mm
• Manufacturer heat range rating of 7 suitable for 4-cycle engines
• Ceramic insulator material with non-projected design
• Includes one spark plug per package

About the Bosch Nickel Spark Plug Line

The Bosch Nickel product line features spark plugs with nickel-yttrium alloy electrodes that provide reliable ignition and durability. The Nickel line is designed to meet standard ignition requirements, making it a practical choice for vehicles like the Smart Fortwo that require consistent spark performance without specialized electrode designs.

Technical Details and Performance

The YR7NE spark plug incorporates a 6000 ohm resistor to reduce electrical noise and protect vehicle electronics. Its single ground electrode with a standard tip design ensures stable spark generation. The ceramic insulator offers excellent heat resistance and electrical insulation, while the flat seat type ensures proper sealing in the combustion chamber. The 0.9 mm pre-gap size is factory set to optimize ignition timing and combustion efficiency. This spark plug is specifically designed for 4-cycle engines, matching the requirements of the Smart Fortwo.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in Smart Fortwo vehicles
• Maintains fuel efficiency by ensuring proper ignition timing
• Reduces engine hesitation and rough idling
• Prevents electrical interference with onboard electronics due to resistor design

Installation Notes and Tips

When installing the Bosch YR7NE spark plug, ensure the spark plug gap is checked and adjusted if necessary to 0.9 mm. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the flat seat. The 16 mm hex size allows for standard spark plug socket compatibility. It is recommended to replace all spark plugs simultaneously for balanced engine performance in the Smart Fortwo.

Quality Assurance and Warranty

Bosch spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The YR7NE spark plug is built with high-quality nickel-yttrium electrodes and ceramic insulators to withstand engine conditions. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects to support customer confidence in their ignition components.