Product Overview

This high-quality DPA diesel fuel injection pump head rotor is a critical component for the fuel delivery system in Perkins and compatible diesel engines. Manufactured to meet or exceed OEM specifications, this part (OEM 7123-340W / 7180-550W) is engineered for reliable performance and long service life. We supply this component globally, serving major markets in North America, Europe, Southeast Asia, and the Middle East, ensuring fast and reliable delivery to industrial centers and ports worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from high-speed steel for superior wear resistance and dimensional stability under high-pressure injection conditions.
• OEM Quality: 100% professionally tested to ensure perfect fitment and function as a direct replacement for the original part.
• Enhanced Durability: Designed to withstand the rigors of continuous operation, reducing downtime and maintenance frequency for your fleet.
• Restored Performance: Replaces worn components to restore precise fuel metering, improving engine efficiency and power output.
• Reliable Supply: Sourced from a trusted manufacturer with a 6-month warranty, providing peace of mind for your repair or overhaul project.

Technical Specifications

OEM Cross-Reference

This head rotor is a direct replacement for the following OEM and reference numbers:

• Primary OEM: 7123-340W
• Alternative OEM: 7180-550W
• Compatible Systems: DPA (Distributor Pump) type fuel injection pumps commonly used on Perkins and other industrial engines.

Compatibility

This component is designed for use in DPA-type fuel injection pumps. It is primarily compatible with:

• Engine Models: Various Perkins diesel engine models utilizing DPA fuel injection systems.
• Vehicle/Equipment Application: Agricultural tractors, construction machinery, generators, and industrial equipment powered by compatible engines.
• Note: Please verify your pump model and existing part number (7123-340W or 7180-550W) to ensure correct fitment before purchase.

Global Supply & Distribution

We are committed to providing seamless global logistics for our B2B partners. Our supply chain supports:

• Worldwide Shipping: Reliable delivery to all major continents via air, sea, and express courier services.
• Key Markets: Extensive distribution networks in North America, Europe, the Middle East, Africa, and Asia-Pacific.
• Fast Delivery: Efficient processing and shipping to major industrial hubs and ports, minimizing lead times for your critical repairs.
• Export Expertise: Experienced in international trade documentation and compliance to ensure smooth customs clearance.

Quality Assurance

• Manufacturing Standard: Manufactured in a facility adhering to strict quality control processes.
• Testing: Each unit undergoes a 100% professional performance test to ensure pressure and flow specifications are met.
• Warranty: Backed by a 6-month warranty against manufacturing defects.

FAQ

1. How do I confirm this head rotor is the correct part for my pump?
Check the identification tag or stamping on your DPA fuel injection pump. The part numbers 7123-340W or 7180-550W must match the rotor currently installed. You can also cross-reference your engine model (e.g., specific Perkins engine code) with the pump manufacturer’s specifications.

2. What is involved in replacing the head rotor on a DPA pump?
Replacing the head rotor is an internal pump repair that requires significant mechanical expertise. It involves disassembling the pump head, removing the old rotor and related components (like the metering valve and rollers), cleaning the housing, and installing the new rotor with precise torque settings. This job is typically performed by a certified diesel fuel injection service center.

3. What other parts should I replace at the same time?
When replacing the head rotor, it is strongly recommended to also replace the hydraulic head, pumping plungers, delivery valves, and all seals and O-rings within the pump head. This ensures a complete overhaul, prevents premature failure of the new rotor, and restores the pump to like-new performance. Failing to replace worn associated parts can lead to contamination and rapid wear of the new rotor.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .