Bosch 8123 Spark Plug

Overview of Bosch OE Fine Wire Double Platinum Spark Plug 8123

The Bosch OE Fine Wire Double Platinum Spark Plug 8123 is engineered for reliable ignition performance in select Chrysler, Dodge, Plymouth, and Volkswagen vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum electrodes for extended durability
• 6000 ohm resistance for noise suppression
• Standard ground electrode design with copper core
• 1.3 mm pre-gap size for optimal spark
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Ceramic projected insulator for improved insulation
• Compatible with 4-cycle engines
• Manufacturer heat range 8 for balanced thermal performance

Detailed Product Features and Specifications

The Bosch 8123 spark plug features a center electrode tip made of platinum, supported by a nickel-yttrium and copper core, enhancing electrode longevity and consistent spark delivery. The ground electrode tip also incorporates platinum along with nickel-yttrium and copper, contributing to wear resistance. With a resistance rating of 6000 ohms, this spark plug effectively reduces electromagnetic interference, protecting vehicle electronics. The standard ground electrode configuration and single ground electrode ensure reliable spark gap maintenance. The ceramic insulator is projected to improve voltage insulation and heat dissipation, while the flat seat design ensures proper sealing in compatible cylinder heads. The 16 mm hex size facilitates installation with common tools, and the 1.3 mm pre-gap size is factory set for optimal ignition performance.

About the OE Fine Wire Double Platinum Product Line

The Bosch OE Fine Wire Double Platinum line is designed to provide enhanced durability and consistent ignition performance through the use of fine wire platinum electrodes on both the center and ground electrodes. This design reduces electrode wear and maintains a stable spark gap over time, which is critical for maintaining engine efficiency and emissions compliance. The 8123 spark plug is part of this line, offering a balance of longevity and reliable ignition for compatible vehicles.

Compatible Vehicles and Common Applications

• Chrysler 300, 300M, Concorde, Intrepid, LHS, Magnum, Pacifica, Prowler, Sebring, Town & Country
• Dodge Avenger, Challenger, Charger, Grand Caravan, Journey, Nitro
• Plymouth models compatible with specified fitment
• Volkswagen Routan

Common Issues Addressed by Bosch 8123 Spark Plug

• Engine misfires due to worn or fouled spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting the engine in cold conditions
• Increased emissions caused by incomplete combustion
• Engine hesitation or rough idling

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 1.3 mm as specified. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or cylinder head. The 16 mm hex size allows for standard spark plug sockets. Ensure the engine is cool before removing old plugs to prevent thread damage. Replace spark plugs in sets of six for vehicles requiring multiple plugs to maintain balanced engine performance.

Quality Assurance and Warranty

Bosch spark plugs, including the OE Fine Wire Double Platinum 8123, are manufactured to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as platinum and copper cores ensures durability and consistent performance. Bosch typically offers a limited warranty on their spark plugs covering defects in materials and workmanship; please refer to Bosch’s official warranty documentation for specific terms.