Description

Genuine NGK DPR8EGP Platinum Spark Plug Specifications, Features & Applications

 

The NGK DPR8EGP is a high-quality Platinum spark plug from NGK’s trusted G-Power series, engineered to provide reliable ignition performance, improved combustion efficiency, and longer service life compared to conventional copper plugs. Featuring a platinum-tipped center electrode, this spark plug delivers consistent firing, smoother engine operation, and enhanced durability — making it an excellent upgrade for motorcycles and small petrol engines that demand stable and efficient ignition.

Designed to meet OEM-level quality standards, the NGK DPR8EGP is widely used in 4-stroke motorcycles and small engines operating under varied riding conditions.

Specifications:

Brand: NGK
Part Number: DPR8EGP
Manufacturer Model: DPR8EGP
Series / Type: G-Power Platinum
Center Electrode Material: Platinum-tipped
Ground Electrode Material: Nickel alloy
Electrode Gap: 0.9 mm (factory pre-set)
Thread Diameter: 12 mm
Thread Pitch: 1.25 mm
Thread Reach: 19 mm (3/4″)
Hex Size: 18 mm
Heat Range: 8 (NGK scale — colder heat range)
Resistor: Yes
Seat Type: Gasket (washer type)

Key Features:

Platinum-Tipped Center Electrode

The fine platinum tip provides excellent ignitability and requires lower firing voltage, ensuring a strong, clean spark for improved starting, smoother acceleration, and reliable performance.

Enhanced Durability & Longer Life

Platinum resists wear and erosion far better than standard nickel electrodes, allowing the DPR8EGP to maintain a consistent spark gap and deliver extended service life.

Improved Combustion Efficiency

A precise and stable spark promotes more complete fuel combustion, helping improve throttle response, engine smoothness, and overall efficiency.

Reliable Performance in High-Temperature Conditions

With NGK’s heat range 8, this spark plug is suitable for engines that operate at higher temperatures or under sustained loads, reducing the risk of pre-ignition and knocking.

Resistor-Type Design

Built-in resistor minimizes electrical interference, protecting ignition components and ensuring stable performance in modern ignition systems.

Corrosion & Seize Protection

Trivalent metal plating on the threads prevents corrosion and thread seizure, making installation and removal easier over time.

Applications — Compatible Motorcycle & Small Engines

The NGK DPR8EGP Platinum spark plug is widely used in 4-stroke motorcycles and small petrol engines that require a 12 mm thread, 19 mm reach, and NGK heat range 8 plug.

It is designed for riders seeking better reliability, smoother engine operation, and longer replacement intervals compared to standard copper plugs.

Common Motorcycle Applications (Examples)

Yamaha

• Yamaha YBR 110

• Yamaha YBR 125

• Yamaha Crux

• Yamaha Libero

Hero / Hero Honda

• Hero Honda CBZ

• Hero Honda CBZ Star

• Hero Honda Ambition

• Hero Honda Karizma / Karizma ZMR

Other 4-Stroke Motorcycles

• Various commuter and mid-range motorcycles using:

  • 12 mm spark plug thread

  • 19 mm reach

  • NGK heat range 8