4JK1 4JJ1 Steering Pump 8979466980 Isuzu TFR TFS DMAX Pickup Power Steering Pump 29 Teeth Gear Long Oil Pipe

Dmax steering pump isuzu 4JJ1 4JK1

Function of the Hydraulic Power Steering Pump in Diesel Vehicles

The hydraulic power steering pump is a critical component in traditional power steering systems, designed to assist the driver in turning the wheels with minimal effort. In diesel vehicles, it operates by:

Generating Hydraulic Pressure – The pump (typically driven by the engine via a belt) pressurizes hydraulic fluid (power steering fluid), creating the force needed for steering assistance.

Assisting Steering Effort – Pressurized fluid is directed to the steering gear (e.g., rack-and-pinion or recirculating ball system), reducing the physical effort required to turn the wheels, especially at low speeds or when stationary.

Maintaining Responsiveness – Ensures smooth and precise steering control, compensating for the heavier weight of diesel engines and vehicles.

Key Features

Durability – Built to withstand high pressures and the robust demands of diesel engines, often using heavy-duty materials (e.g., cast iron or reinforced aluminum).

Engine-Driven – Typically belt-driven (v-belt or serpentine), ensuring consistent operation as long as the engine is running.

Variable Displacement (Advanced Models) – Some pumps adjust fluid output based on steering demand, improving efficiency and reducing engine load.

Pressure Relief Valve – Prevents system damage by limiting maximum hydraulic pressure.

Compatibility – Designed to work with viscous power steering fluids suitable for diesel applications, often under higher temperatures.

HOW TO CONTACT US

Our Service

1. Supply ISUZU genuine parts , ISUZU Bvp parts , OEM parts , high cost performance China manufacture parts .

2. General agent of ORIGIN PARD in China.

3. Thirty years of retail and wholesale experience .  The sales group with average of five years experience , can answer any professional question . Equipped with a professional quality inspection team.

4. Running seven stores , manage in commercial vehicle and industrial engine parts.

5. Can offer competitive purchase price to our client , cause we attain developed distribution channel over the world.

FAQ

1.Q:What is your terms of payment?

A:T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

2.Q:Are you manufacturer or trading company?

A: We are both factory and trading company , we combination for more than 10 years. We have invested in 3 factories.

3.Q: How about the delivery time of the goods?

A: For testing sample, which it depends on the storage.

For bulk production, the delivery time is about 15-30 days based on order situation.

4.Q.:Can you produce according to the samples?

A: Clients’ sample is welcome. We are able to produce the specific products according to your sample.
If you do not find the product you need, tell us detailed information, we have the ability to design and manufacture as requested.

5.Q: Can I get a lower price if I order large quantities?

A: Yes, cheaper prices with more bigger size orders.