Product Overview

Our Diesel Fuel Transfer Pump Liner (Part No. 7139-223) is a high-precision component engineered for the demanding environment of commercial diesel truck engines. Manufactured in our ISO-compliant facility in Shandong, China, this liner serves as a critical wear surface within the fuel transfer pump, ensuring consistent fuel delivery and long-term reliability. We supply this part globally to markets including North America, Europe, Southeast Asia, the Middle East, and South America, supporting fleet maintenance, aftermarket distributors, and repair shops.

Key Features & Benefits

• Premium Material: Constructed from High-Speed Steel (HSS) for exceptional wear resistance and dimensional stability under high-pressure fuel injection cycles.
• Precision Engineering: Machined to standard size specifications with tight tolerances to ensure a perfect seal and optimal plunger movement.
• Extended Service Life: Designed to withstand the abrasive nature of diesel fuel, reducing the frequency of pump rebuilds and maintenance downtime.
• Direct Replacement: An exact OE replacement for part number 7139-223, ensuring a hassle-free installation without modifications.
• Corrosion Resistant: Silver finish provides a protective layer against fuel contaminants and moisture.

Technical Specifications

OEM Cross-Reference

This liner is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• 7139-223 (Primary Number)

Note: If your specific pump requires a different suffix or variant, please contact our sales team with your pump model or current part number for cross-verification. We maintain a large database of fuel system components.

Compatibility

This Transfer Pump Liner 7139-223 is designed for use in mechanical and electronic diesel fuel transfer pumps commonly found on heavy-duty trucks and commercial vehicles. Typical applications include:

• Diesel truck fuel injection pumps (inline and distributor types)
• Agricultural and construction equipment using compatible pump platforms
• Engine models requiring standard-size liners for fuel pump rebuilds

Please confirm compatibility with your specific pump model or engine before purchasing. Our team can assist with fitment verification.

Global Supply & Distribution

We provide efficient logistics solutions to ensure your parts arrive on time, anywhere in the world.

• Shipping Partners: UPS, DHL, EMS, TNT, FEDEX, and sea freight for bulk orders.
• Delivery Time: 3-7 days via express courier for stocked items.
• Major Markets Served: USA, Canada, Germany, UK, France, Australia, UAE, Saudi Arabia, South Africa, Brazil, and across Asia.
• Export Experience: We handle international documentation, customs clearance, and offer flexible shipping options (FOB, CIF, DDP).
• MOQ: 24 pcs for standard orders; lower quantities available for sample testing.

Quality Assurance

Every 7139-223 Transfer Pump Liner undergoes rigorous quality control procedures to meet the demands of the aftermarket.

• Manufacturing Standard: Produced under strict ISO 9001 quality management systems.
• Testing: Each unit is inspected for dimensional accuracy, surface hardness (HRC), and material composition.
• Warranty: Backed by a 12-month warranty against manufacturing defects in material and workmanship.
• Packaging: Neutral packaging ensures safe transit and protects the precision surface finish.

FAQ

Q1: How do I know if part number 7139-223 is the correct liner for my fuel pump?

A: This liner is a standard size component. The best way to confirm is to remove your old liner and compare its dimensions (outer diameter, inner diameter, and length) with the specifications provided. If you have the pump model number or a casting number from the pump housing, please share it with us for cross-referencing.

Q2: What is the recommended installation procedure for this liner?

A: Installation should be performed by a qualified diesel technician. The liner must be clean and free of burrs. Apply a light coat of clean diesel fuel or assembly lubricant to the outer surface before pressing it into the pump housing. Ensure the liner is seated squarely and fully to prevent fuel leakage or plunger binding. Always replace seals and O-rings during a pump rebuild.

Q3: Can this liner be used in a high-pressure common rail (HPCR) fuel pump?

A: This liner is typically designed for mechanical transfer pumps or low-pressure stages within a fuel system. It is not intended for the ultra-high-pressure sections of a common rail pump. Please verify your pump type. If you are unsure, contact us with your engine make, model, and pump serial number for specific application advice.