Bosch 9697 Spark Plug

Overview of Bosch OE Fine Wire Double Iridium Spark Plug 9697

The Bosch OE Fine Wire Double Iridium Spark Plug 9697 is engineered for reliable ignition performance in select Ford and Lincoln vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 9697
• Brand Line: OE Fine Wire Double Iridium
• Center Electrode Tip Material: Iridium
• Ground Electrode Tip Material: Platinum-iridium and nickel-yttrium and copper
• Ground Electrode Core Material: Copper
• Center Electrode Core Material: Nickel-yttrium and copper
• Resistance: 6000 ohms
• Pre-Gap Size: 0.9 mm
• Thread Diameter: 14 mm
• Reach: 25 mm
• Seat Type: Tapered
• Hex Size: 16 mm
• Manufacturer Heat Range: 7
• Insulator Material: Ceramic
• Insulator Type: Non-projected
• Designed for 4-cycle engines

About the OE Fine Wire Double Iridium Product Line

The Bosch OE Fine Wire Double Iridium line features spark plugs with fine wire electrodes made from iridium and platinum alloys. This combination enhances durability and ignition efficiency by reducing electrode wear and providing a stable spark. The double iridium design improves ignition reliability and contributes to smoother engine performance, making it suitable for modern Ford and Lincoln vehicles requiring precise ignition components.

Detailed Product Description

The Bosch 9697 spark plug incorporates a fine wire iridium center electrode paired with a platinum-iridium ground electrode tip, both supported by copper cores for optimal conductivity and heat dissipation. The 6000 ohm resistor reduces electrical noise interference, protecting sensitive engine electronics. With a pre-gap size of 0.9 mm and a tapered seat, this spark plug ensures proper sealing and spark gap consistency. The ceramic insulator and non-projected design provide excellent insulation and durability under high-temperature conditions. Its 16 mm hex size and 25 mm reach make it compatible with a range of Ford and Lincoln models, including the Bronco Sport, F-150, Mustang, Explorer, and Navigator, among others.

Compatible Vehicles and Common Applications

• Designed for Ford and Lincoln vehicles such as Bronco Sport, Corsair, EcoSport, Edge, Escape, Expedition, Explorer, F-150, Flex, Focus, Fusion, MKS, MKT, MKZ, Mustang, Nautilus, Navigator, Ranger, Taurus, Transit-150, Transit-250, Transit-350, Transit-350 HD, and Transit Connect
• Suitable for 4-cycle gasoline engines requiring a heat range 7 spark plug
• Addresses ignition issues such as misfires, rough idling, poor fuel economy, hard starts, and reduced engine power

Installation Notes and Tips

• Verify correct spark plug gap of 0.9 mm before installation
• Use a torque wrench to tighten to manufacturer specifications to avoid damage
• Ensure the tapered seat is clean and free of debris for proper sealing
• Replace spark plugs in sets to maintain consistent engine performance
• Inspect ignition components for wear or damage during installation

Quality Assurance and Warranty

Bosch OE Fine Wire Double Iridium spark plugs are manufactured to meet strict OEM standards for fit, form, and function. The use of premium materials such as iridium and platinum alloys ensures long service life and reliable ignition performance. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship.