The Isuzu 6HK1 is a high-performance common rail diesel engine powering Isuzu's medium and heavy-duty truck lineup — including the FRR, FSR, FTR, FVR, FSS, NPR, NQR, and NRR series. As the heart of the common rail fuel system, the high-pressure injection pump delivers precisely metered fuel to the rail at pressures exceeding 1,800 bar — and when it fails, the entire fuel system is compromised. This is an Original Denso common rail injection pump — the same OEM-grade unit supplied to Isuzu at the factory — covering part numbers 8-98091565-0, 8-98091565-4, 1-15603508-1, and multiple cross-references. When only genuine OEM quality will do, this is the right choice.

✅ Direct-Fit Compatibility

• Isuzu Engine: 6HK1 (Common Rail)
• Isuzu Trucks: FRR, FSR, FTR, FVR, FSS, NPR, NQR, NRR
• Bolt-on replacement — no modifications required

🔧 Product Highlights

• Original Denso OEM Unit: Genuine Denso pump — the same supplier that manufactures for Isuzu at the factory level
• Common Rail High-Pressure Rated: Engineered for the sustained high-pressure demands of the 6HK1 common rail system
• Direct Bolt-On Fit: No modifications required; installs like the original
• 10+ Cross-Reference Part Numbers: Covers Isuzu OEM, Denso, and alternative numbering formats for confirmed fitment
• Full Truck Series Coverage: Fits FRR, FSR, FTR, FVR, FSS, NPR, NQR, and NRR in a single part number
• Protects the Entire Fuel System: Correct rail pressure prevents injector wear, rail damage, and ECU fault codes

📦 What's Included

• 1 × Original Denso Common Rail Fuel Injection Pump

🔑 Key Specs

• Part Numbers: 8-98091565-0, 8-98091565-4, 1-15603508-1, 1156035088, 1156035089, 8980915653, 8980915654, 8980915655, 294050-0100, 294050-0103
• Condition: Original Denso (OEM)
• Fitment: Isuzu 6HK1 engine; FRR / FSR / FTR / FVR / FSS / NPR / NQR / NRR trucks

Please verify your engine serial number and existing part number before ordering. Contact us for fitment confirmation if needed.