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.