Isuzu 4JJ1 Rebuild Kit OEM Isuzu Japan

The Isuzu 4JJ1 Engine Rebuild Kit (OEM Isuzu Japan) is a complete solution for restoring your engine’s performance, efficiency, and durability. Manufactured to original Isuzu standards in Japan, this kit includes all essential components needed for a full overhaul — ensuring precise fitment and reliable operation.

The 4JJ1 engine, known for its strength and efficiency, powers many Isuzu NPR, NQR, NRR, and D-MAX models. Over time, wear and tear can affect compression, power, and fuel economy. This OEM rebuild kit provides everything you need to return your 4JJ1 engine to peak condition, with parts that meet or exceed Isuzu’s factory specifications.

Built using premium-grade materials, this kit guarantees optimal sealing, superior heat resistance, and long-lasting performance — making it the ideal choice for professional engine rebuilds or preventive maintenance.

Key Features:

• Genuine OEM Isuzu Japan rebuild kit

• Designed for Isuzu 4JJ1 diesel engines

• Includes pistons, piston rings, bearings, liners, gaskets, and seals

• Manufactured with Isuzu precision engineering for perfect fitment

• Restores compression, power, and fuel efficiency

• Provides heat and wear resistance for long engine life

• Ideal for engine rebuilds, overhauls, or major repairs

• Ensures factory-grade reliability and performance

Compatible Applications:

• Engine Model: Isuzu 4JJ1

• Vehicle Models: Isuzu NPR, NQR, NRR, D-MAX, ELF Series, and other 4JJ1-equipped models

• Fitment Type: OEM Isuzu Japan direct replacement

• Function: Complete rebuild kit for overhauling the Isuzu 4JJ1 diesel engine

Isuzu 4JJ1 Rebuild Overhaul Kit – OEM

4JJ1 Rebuild Kit Includes:

1 x Overhaul Gasket Set (Brand Isuzu)

4 x Pistons (Brand Isuzu)

4 x Ring Sets (Brand Isuzu)

4 x Pins – Piston / ISUZU NPR REACH 4JJ1 3.0L 211-2017 New OEM (Brand Isuzu)

1 x Connecting Rod Bearing Set / ISUZU NPR NKR NHR 4JJ1 4JB1 4JB1T STD 4 Cylinders (Brand N.B.N Made in Taiwan)

5 x Main Bearing Set for Crankshaft / ISUZU NPR REACH 4JJ1 3.0L 2011-2016 (Brand Isuzu)

1 x Thrust washer Set / ISUZU NKR NHR 4JB1 4JB1T 06-14 New OEM

8 x Snap Ring / ISUZU Truck (Brand Isuzu)