Denso OE Specification Injector Nozzle with Precision-Ground Needle for ISUZU 4HL1 6HL1 Engines at 1600+ bar Pressure

The injector nozzle carrying OEM numbers 8-97367552-5 and 8973675525 is a direct replacement for the Denso common rail injector assembly used in ISUZU 4HL1 and 6HL1 diesel engines. This nozzle is the fuel-metering component at the tip of the injector, responsible for atomizing high-pressure fuel into the combustion chamber with micron-level precision.

The 4HL1 is a 4.777-liter inline-4 common rail direct injection engine with a bore and stroke of 115 mm × 115 mm. Available in naturally aspirated, turbocharged, and intercooled variants (4HL1, 4HL1-TC, 4HL1-TCS), it produces between 96 kW and 132 kW at 2,700-3,000 rpm, with peak torque ranging from 333 N*m to 500 N*m at 1,500 rpm depending on the variant. The 6HL1 is a 6-cylinder version of the same engine family, sharing the same common rail fuel system architecture.

A worn or clogged injector nozzle results in rough idle, increased fuel consumption, white or black exhaust smoke, hard starting, or engine knock. This replacement nozzle restores the original spray pattern and fuel delivery, ensuring complete combustion and factory-specified engine performance.

This ISUZU injector nozzle 8-97367552-5 fits the following engines and vehicles:

This nozzle is also compatible with 4HK1 and 6HK1 engines (4.8-5.2 L common rail) in certain applications. However, confirm the original part number before ordering.

• One Nozzle Covers Multiple ISUZU Engine Lines - The same 8-97367552-5 nozzle fits 4HL1 (inline-4) and 6HL1 (inline-6) engines, reducing inventory requirements
• Prevents Expensive Injector Assembly Replacement - Restores fuel delivery at a fraction of the cost of a complete injector assembly
• Restores Power and Fuel Economy on High-Mileage Engines - Returns engine's torque output and fuel consumption to near-factory levels
• Certified for IATF 16949 Quality Standards - Manufacturing facility holds IATF 16949 certification specific to automotive component production
• Lightweight and Compact for International Shipping - Each nozzle weighs approximately 0.10-0.12 kg and packs into a 5 × 5 × 8 cm carton

Each batch of the ISUZU injector nozzle 8-97367552-5 undergoes comprehensive verification:

The facility holds IATF 16949 certification. A certificate of conformance (COC) with material analysis is available for wholesale orders.

• Individual packaging: Sealed in anti-rust VCI bag, foam-lined carton
• Carton dimensions: 5 × 5 × 8 cm per nozzle
• Net weight: 0.10-0.12 kg; gross weight (with packaging): 0.15 kg
• Master carton: 100 units per export carton (approx. 25 × 25 × 20 cm, 15 kg)
• Lead time: 3-7 working days for stock orders; 15-20 days for production orders above 500 pieces
• Minimum order quantity: 1 piece (sample order available)
• Shipping methods: FedEx, UPS, DHL for samples; sea freight (LCL/FCL) from Shanghai, Ningbo, Guangzhou ports
• H/S Code: 8409.99

For workshops performing a full fuel system overhaul, the supplier also stocks Denso control valves, injector sealing washers, and common rail repair kits for the 4HL1/6HL1 engines.