8981281340 Oil Pump for Isuzu 4JJ1 Engine D-Max 3.0 Diesel

Technical Specifications

Engine Platforms Using the Isuzu 4JJ1 Oil Pump

When technicians or parts buyers search for lubrication components, the first step is usually to confirm the engine platform rather than the vehicle model. For diesel engines used across multiple commercial vehicles, the same oil pump may serve several applications.

The Isuzu 4JJ1 Oil Pump used under OE reference 8981281340 Oil Pump belongs to the lubrication system fitted to the 3.0-litre Isuzu diesel engine family. These engines are widely used in pickups, light trucks and industrial machinery, where continuous lubrication is required during long operating cycles.

In practical workshop conditions, the pump draws oil from the sump, builds pressure inside the lubrication circuit and distributes the oil through internal galleries to components such as the crankshaft bearings, camshaft journals and piston cooling passages. Maintaining stable oil pressure is critical because diesel engines in this class often operate under heavy load for extended periods.

The Isuzu 4JJ1 Oil Pump 8981281340 configuration is commonly associated with the following engines:

• Isuzu 4JJ1
• Isuzu 4JJ1-T
• Isuzu 4JK1

Because these engines share a similar lubrication layout, the same pump assembly can be used across several vehicle platforms.

Diagnostic Context – Isuzu 4JJ1 Low Oil Pressure Warning Symptoms

Many searches leading to oil pump pages originate from diagnostic troubleshooting rather than direct part searches. Technicians frequently investigate lubrication issues before confirming whether the pump itself needs replacement.

Typical Isuzu 4JJ1 low oil pressure warning symptoms observed during workshop diagnostics include:

• oil pressure warning light appearing during idle
• delayed oil pressure build-up after engine start
• metallic knocking noise from the lower engine area
• increased valvetrain noise
• turbocharger lubrication noise

When these symptoms appear, technicians usually begin with basic checks such as oil level, oil filter condition and pressure sensor operation. If the measured oil pressure remains below specification after these checks, attention often turns to the Isuzu 4JJ1 Oil Pump and related lubrication components.

Because diesel engines used in commercial vehicles may accumulate high mileage, wear inside the pump housing or rotor assembly can gradually reduce the pump’s ability to maintain pressure.

Why Choose Our Supply for Isuzu 4JJ1 Oil Pump?

For distributors and engine rebuild specialists, stable supply is as important as confirming the correct OE number. Once the required part is identified as the 8981281340 Oil Pump, buyers usually need a supplier capable of delivering consistent production batches for ongoing repair and distribution programmes.

Our company manufactures the Isuzu 4JJ1 Oil Pump and supplies it directly from our production facility. Orders are shipped from the factory rather than through overseas warehouses, which allows distributors to source the same OE-reference part across repeated purchases. The Isuzu 4JJ1 Oil Pump 8981281340 is widely used in diesel engines installed in vehicles such as Isuzu D-Max pickups and N-series trucks using the 4JJ1 engine platforms.

This supply structure supports common purchasing models including:

• diesel engine rebuild companies sourcing parts for overhaul projects
• commercial vehicle repair workshops maintaining fleet vehicles
• spare-parts distributors managing OE-based catalogues
• international trading companies consolidating export shipments

FAQ

1. What engine uses the 8981281340 Oil Pump?

It is mainly installed on the Isuzu 4JJ1 3.0-litre diesel engine, commonly used in D-Max pickups and N-series commercial trucks.

2. Which OE numbers interchange with 8981281340?

Common cross-reference numbers include: 8982326241, 8981451530, 8980537770, 8979444290, 8980115030 and L210-0100S.

3. Is this the same pump used in the Isuzu D-Max 3.0 Oil Pump system?

Yes. The lubrication system of the D-Max 3.0 diesel engine uses this oil pump configuration on several model years.

4. Is stock held in Europe?

No. Parts are shipped directly from the manufacturing facility in China.

5. How does batch consistency compare to genuine Isuzu parts?

We machine to the same tolerances and test every unit on the same pressure rig used for OEM validation.

6. Can trade accounts order in mixed quantities?

Yes. Factory-direct supply removes minimum order restrictions that smaller distributors often impose.

Compatible Vehicle Model

Once the engine platform is confirmed, the next step for most buyers is verifying vehicle compatibility. The Isuzu D-Max 3.0 Oil Pump configuration based on OE 8981281340 Oil Pump appears across both pickup and light commercial vehicle platforms. Typical vehicle applications include: