Product Overview

This is a premium-quality 4 Cycle Diesel Engine Injection Pump Rotor Head, designed as a direct replacement for the 7180-550U (also known as 7180550u, 343, 344u, or 558a) DPA-type fuel injection pumps. Manufactured to OE specifications, this component ensures precise fuel metering and optimal engine performance for a wide range of diesel trucks and machinery. We ship globally to major industrial hubs in North America, Europe, Southeast Asia, and the Middle East, ensuring fast and reliable delivery for B2B customers.

Key Features & Benefits

• Precision Engineering: Manufactured to standard size specifications for a perfect, hassle-free fit on DPA pump heads.
• High Durability: Constructed from hardened materials to withstand high-pressure cycles and extend service life.
• Reliable Performance: Ensures stable fuel injection timing and pressure, reducing engine vibration and improving fuel economy.
• Cost-Effective Solution: A high-quality alternative to OE parts, offering excellent value for fleet maintenance and repair shops.
• Immediate Availability: Stocked for quick dispatch within 3 days, minimizing downtime for your operations.

Technical Specifications

OEM Cross-Reference

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

• Primary OE Number: 7180-550U
• Alternative References: 7180550u, 343, 344u, 558a
• Pump Type: DPA (Distributor Pump) 4/9R Series

Note: Always verify the pump model and plunger size before ordering.

Compatibility

This component is designed for use in DPA-type fuel injection pumps commonly found on:

• Engine Types: 4-cycle diesel engines.
• Vehicle Applications: Diesel trucks, agricultural tractors, and industrial machinery.
• Pump Models: Specifically fits the DPA 4/9R pump head configuration.

Global Supply & Distribution

Our supply chain is optimized for international B2B clients. We offer:

• Worldwide Shipping: Via sea, air, or fast express courier (DHL, FedEx, UPS).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Australia, Japan, Korea), and the Middle East (UAE, Saudi Arabia).
• Fast Delivery: In-stock items are dispatched within 3 business days to major ports and industrial centers.
• Trade Compliance: Experienced in export documentation and customs clearance for smooth international transactions.

Quality Assurance

• Manufacturing Standard: Produced in ISO-certified facilities in Shandong, China.
• Testing: Each unit is inspected for dimensional accuracy and surface finish before packing.
• Warranty: Backed by a 4-month warranty against manufacturing defects.

FAQ

Q1: Is this rotor head a direct replacement for the 7180-550U part?
A: Yes, this part is manufactured to the exact OE specifications of the 7180-550U (also known as 7180550u). It is a direct fit for DPA pumps requiring that specific head rotor, provided your pump uses the 4/9R configuration.

Q2: What is the installation procedure for this part?
A: Installation requires disassembling the injection pump. We recommend having a qualified diesel technician perform the replacement. The rotor head must be installed with proper lubrication and torqued to the manufacturer’s specifications to ensure correct fuel timing and pressure.

Q3: How can I verify if this part fits my specific engine model?
A: Please check the existing part number on your injection pump’s rotor head. If it matches 7180-550U, 343, 344u, or 558a, this is the correct part. For further verification, you can contact our support team with your engine model and pump serial number.

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 .