Bosch HR8NPP302 Spark Plug

Overview of Bosch HR8NPP302 Spark Plug

The Bosch HR8NPP302 spark plug is engineered for reliable ignition performance in select Buick, Cadillac, Chevrolet, GMC, Pontiac, Saturn, and Suzuki vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: HR8NPP302
• Brand Line: OE Fine Wire Platinum
• Resistance: 6000 ohms
• Center Electrode Tip Material: Platinum
• Ground Electrode Core Material: Copper
• Pre-Gap Size: 1.1 mm
• Thread Diameter: 14 mm
• Reach: 25 mm
• Hex Size: 16 mm
• Seat Type: Tapered
• Insulator Material: Ceramic
• Manufacturer Heat Range: 8
• Designed for 4-cycle engines

OE Fine Wire Platinum Brand Line Details

The OE Fine Wire Platinum line by Bosch focuses on delivering spark plugs with fine wire platinum center electrodes, which provide enhanced durability and stable ignition. This product line is designed to meet or exceed original equipment specifications, ensuring compatibility and performance for vehicles requiring platinum-tipped spark plugs. The HR8NPP302 spark plug benefits from this technology, offering improved wear resistance and consistent spark delivery.

Technical Description and Features

The HR8NPP302 spark plug features a platinum center electrode tip combined with a copper core, which balances conductivity and durability. The ground electrode uses nickel-yttrium and copper materials with a standard design and a single ground electrode tip, contributing to reliable spark generation. The ceramic insulator is non-projected, providing electrical insulation and heat resistance. With a resistance rating of 6000 ohms, this spark plug includes an internal resistor to reduce electromagnetic interference. The tapered seat and 16 mm hex size facilitate proper installation and secure fitment.

Compatible Vehicles and Applications

• Buick models: Allure, LaCrosse
• Cadillac models: CTS, SRX, STS
• Chevrolet models: Acadia, Equinox, Malibu, Traverse
• GMC models: Enclave, Outlook, Terrain, Torrent
• Pontiac models: G6, G8, Grand Prix, Torrent
• Saturn models: Aura, Vue
• Suzuki models: Grand Vitara, XL-7

Common Issues Addressed by Bosch HR8NPP302

• Engine misfires and rough idling
• Poor fuel efficiency due to incomplete combustion
• Difficulty starting the engine
• Reduced engine power and acceleration
• Increased emissions from inefficient ignition

Installation Notes and Tips

Ensure the engine is cool before removing old spark plugs. Use a torque wrench to tighten the HR8NPP302 spark plug to manufacturer specifications to avoid damage to the tapered seat or threads. Verify the pre-gap size of 1.1 mm before installation, although the plug comes pre-gapped. Inspect the spark plug well for debris and clean if necessary. Replace spark plugs in sets to maintain consistent engine performance.

Quality Assurance and Warranty

Bosch spark plugs, including the HR8NPP302, are manufactured to meet strict quality standards and original equipment specifications. The OE Fine Wire Platinum line undergoes rigorous testing to ensure durability and reliable ignition performance. Warranty coverage details should be confirmed with the vehicle manufacturer or Bosch directly.