NPS DG-197 Glow Plugs

NPS DG-197 Glow Plug

The NPS DG-197 Glow Plug is a high‑performance ignition component designed for diesel engines that require reliable pre‑ignition to achieve optimal combustion. This glow plug delivers consistent heat output, ensuring smooth engine start-up even in extreme temperatures.

Key Features and Technical Specifications

• Model: DG-197
• Manufacturer: NPS (Nippon Parts Service)
• Compatibility: Engine models that use the Denso DG-197 specification, including a wide range of Nissan diesel vehicles.
• Heat Range: Medium‑to‑high heat rating suitable for both light and heavy duty engines.
• Material: High‑temperature alloy with excellent corrosion resistance.
• Dimensions: Standard length and diameter to fit the DG-197 socket.
• Electrical Rating: 12 V DC, 1.5 A (typical)

Vehicle Compatibility

The NPS DG-197 Glow Plug is engineered to fit a broad spectrum of Nissan diesel models that originally use the Denso DG-197 glow plug. Below are representative vehicle families and specific engine variants:

• Nissan TINO, PIKA, DATSUN, NAVARA, SERENA – engines 11065‑AD200, 11065‑AD201.
• Nissan CABSTAR E, F24M, F24W, YD25DDTI, YD25K3LD, 5MI, YD22DDT.
• Nissan TERRANO, CABSTAR, PICK UP, PRIMERA, X‑TRAIL, 11065‑AD220.
• Nissan CAMIONES / FRONTIER, SENTRA II Hatchback, PRIMERA Hatchback.
• Nissan NP300 PICKUP, NAVARA, ALMERA II, ALMERA TINO, CABSTAR, PRIMERA, X‑TRAIL, KING CAB.
• Nissan PATHFINDER III R51 2.5DCI 4WD X‑TALR.
• Nissan ARMADA III SUV BIG M, NP300/FRONTIER/NAVARA, Platform/Chassis/PICKUP.

Installation and Maintenance

Installing the NPS DG-197 Glow Plug is straightforward:

1. Locate the glow plug socket in the engine block.
2. Use a compatible wrench or socket to unscrew the old plug, taking care not to damage the threads.
3. Insert the new NPS DG-197 Glow Plug and tighten to the manufacturer’s torque specification.
4. Reconnect the electrical connector, ensuring a secure fit.

For optimal performance:

• Inspect glow plugs every 10,000–15,000 miles or as recommended by the vehicle service manual.
• Replace any plug that shows signs of wear, discoloration, or reduced heat output.
• Avoid using aftermarket parts that do not meet the DG-197 specifications to prevent engine misfires.

Performance Benefits

The NPS DG-197 Glow Plug offers several advantages for diesel engines:

• Reliable Cold Starts: Consistent heat delivery ensures the combustion chamber reaches ignition temperature quickly, even in sub‑freezing conditions.
• Improved Fuel Efficiency: Efficient pre‑ignition reduces fuel consumption by ensuring complete combustion.
• Reduced Emissions: Proper glow plug operation minimizes unburnt hydrocarbons and particulate matter.
• Longevity: High‑quality alloy construction resists corrosion and thermal fatigue, extending service life.

Quality Assurance

The NPS DG-197 Glow Plug is manufactured under strict quality control protocols. Each unit undergoes:

• Dimensional inspection to confirm exact fit within the DG-197 socket.
• Electrical testing to verify correct voltage and current characteristics.
• Heat output measurement to ensure compliance with medium‑to‑high heat rating standards.

Conclusion

The NPS DG-197 Glow Plug is a reliable, high‑performance component essential for diesel engines that rely on the Denso DG-197 specification. Its robust construction, precise heat output, and broad vehicle compatibility make it an ideal choice for maintaining engine reliability, efficiency, and longevity across a wide range of Nissan diesel models.