Water Pump with Stainless Steel Impeller and Double-Sealed Ball Bearing for ISUZU NLR85 4JJ1T Engine - 110 L/min Flow Rate

The Water Pump Assembly with OEM numbers 8-98004292-3 / 8980042923 is a verified direct-fit replacement for ISUZU NLR85 light-duty trucks equipped with the 4JJ1T 3.0L turbo-diesel engine.
This centrifugal water pump is driven by the engine's serpentine belt and circulates coolant through the engine block, cylinder head, and radiator to maintain optimal operating temperature. Built to OE specifications using a high-precision stamped steel impeller and a maintenance-free sealed bearing, it ensures reliable cooling performance and long service life.

Compatible Engine Model

• ISUZU 4JJ1T (3.0L, 4-cylinder, turbo-diesel, common rail) — used in NLR, NKR, NPR light-duty trucks

Compatible Truck Models

• ISUZU NLR85 (most common application)
• ISUZU NLR77 / NLR88 (verify with engine code)
• ISUZU NKR series (with 4JJ1T)
• ISUZU NPR 300 / 400 series (select years with 4JJ1T)

Before installation:

• Drain coolant completely and inspect for rust or debris. Flush the system if old coolant is contaminated.
• Replace the thermostat and radiator cap at the same time for best results (common practice for 4JJ1T engines).

Installation steps (abbreviated):

1. Remove drive belt, fan, and old pump. Clean mating surface thoroughly.
2. Compare new pump's impeller depth and flange alignment with old unit.
3. Apply the included paper gasket (no extra sealant required).
4. Torque mounting bolts to 12 Nm in a cross pattern.
5. Reinstall fan and belt. Tension belt to 6-8 mm deflection at mid-span.
6. Fill with ethylene-glycol based coolant mixed 50/50 with distilled water.
7. Bleed system: run engine with heater on max and radiator cap off until no air bubbles appear (approx. 10-15 min).

Maintenance:

• Replace coolant every 2 years or 60,000 km.
• Inspect pump weep hole for any sign of coolant leakage every oil change.
• Listen for grinding noise — indicates bearing failure.

• Sturdy carton with foam insert and moisture-barrier bag (prevents corrosion during sea freight)
• Each pump individually packed with gasket and O-ring in a separate labeled bag
• Bulk wholesale packing: 10 units per master carton, layer pads for pallet
• Custom OEM box and label available (minimum order quantity applies)
• Suitable for: ISUZU light-duty truck parts distributors, diesel repair shops, fleet maintenance depots, overseas auto parts wholesalers