Direct Replacement Fuel Pump Assembly — OEM-Spec for Isuzu 4JA1 & 4HF1 Engines | TFR54 & NPR Commercial Trucks

The Isuzu 4JA1 and 4HF1 diesel engines power two of the most widely used commercial trucks in their class — the TFR54 light truck and the NPR medium-duty cab-over, both workhorses in fleet, delivery, and commercial transport operations. When the fuel pump assembly fails, the truck is out of service: hard starts, loss of fuel pressure under load, and the fuel starvation that forces a commercial vehicle off the road mid-route. For fleet operators, every hour of downtime has a direct cost. This direct-fit replacement fuel pump assembly (94030760 / 8-94144933-2) restores complete fuel system function in a single integrated unit, getting your Isuzu commercial truck back on the road.

✅ Direct-Fit Compatibility

• Isuzu Engines: 4JA1, 4HF1
• Isuzu Trucks: TFR54 (light truck), NPR (medium-duty)
• Direct replacement — no modifications required
• Suitable for fleet, delivery, and commercial transport applications

🔧 Complete Fuel System Function in One Assembly

• Integrated assembly design — manages fuel intake, pressurization, and regulation in a single unit; one part replaces the complete fuel pump function
• OEM-matched pressure output — consistent fuel delivery across all engine speeds and load conditions for full commercial truck performance
• 100% new aftermarket — not rebuilt or remanufactured; starts with a full service life
• Dual OEM cross-reference — covers both 94030760 and 8-94144933-2 for confirmed fitment confidence
• Fleet-ready reliability — built for the sustained high-load demands of commercial truck operation and fleet maintenance cycles
• No dealer markup — OEM-equivalent quality at aftermarket pricing

📦 What's Included

• 1 × Fuel Pump Assembly (94030760 / 8-94144933-2)

🔑 Key Specs

• Part Numbers: 94030760, 8-94144933-2
• Condition: 100% New Aftermarket
• Engines: Isuzu 4JA1, 4HF1
• Fitment: Isuzu TFR54 / NPR commercial trucks

Get your Isuzu truck back on the road. Order today — in stock and ready to ship.