Product Overview

This high-performance P66 U840 XY120P40 Diesel Pump Plunger & Barrel Assembly is a critical component for modern diesel fuel injection systems. Designed for precision and durability, this plunger element ensures optimal fuel metering and injection pressure for diesel engines. As a trusted supplier from Shandong, China, we serve a global B2B clientele, shipping to markets across North America, Europe, Asia-Pacific, the Middle East, and South America. Ideal for replacement and repair applications, this part is engineered to meet OE specifications for reliable engine performance.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade stainless steel for superior wear resistance and long service life.
• Enhanced Fuel Efficiency: Optimized plunger geometry ensures accurate fuel delivery, reducing consumption and emissions.
• Direct Fit Replacement: Designed as a drop-in replacement for P66 series fuel injection pumps, minimizing downtime.
• Corrosion Resistance: Stainless steel construction withstands harsh fuel conditions and prevents internal damage.
• Rigorous Quality Control: Each unit is tested for dimensional accuracy and hydraulic performance before shipment.

Technical Specifications

OEM Cross-Reference

This plunger element is designed to replace or serve as an alternative to the following OEM part numbers:

• P66 (Primary OE Reference)
• U840 (Cross-Reference Number)
• XY120P40 (Alternate Part Code)

Note: Always verify compatibility with your specific fuel injection pump model before ordering.

Compatibility

This plunger and barrel assembly is compatible with:

• Engine Model: PS8500 series diesel engines
• Vehicle Application: Diesel engine cars and light commercial vehicles using P66-type fuel injection pumps
• System Type: Inline or distributor-type diesel fuel injection pumps requiring P66 plunger elements

Global Supply & Distribution

We provide efficient worldwide shipping with fast delivery to major ports and industrial hubs. Our export experience covers:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, London
• Asia-Pacific: Singapore, Shanghai, Sydney, Tokyo
• Middle East: Dubai, Jeddah, Doha
• South America: Santos, Buenos Aires, Valparaíso

We comply with international trade regulations and offer flexible shipping options (FOB, CIF, DDP) to meet your logistics needs.

Quality Assurance

• Manufacturing Standards: Produced under strict ISO-compliant processes with precision machining tolerances.
• Testing: Each plunger element undergoes hydraulic pressure and dimensional verification tests.
• Warranty: 4-month warranty against manufacturing defects in materials and workmanship.
• Certification: Parts are traceable and meet OE quality benchmarks for aftermarket use.

FAQ

Q1: How do I confirm this plunger element fits my injection pump?
A: Verify your pump model number (e.g., P66) and compare the part number (U840 XY120P40) with your existing component. Measure the plunger diameter and barrel length if unsure. We recommend consulting your pump’s service manual or contacting our technical support for cross-reference assistance.

Q2: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel technician. Clean the pump housing thoroughly, lubricate the plunger with clean diesel fuel, and insert the assembly carefully to avoid scoring. Torque retaining screws to manufacturer specifications and calibrate the pump on a test bench after installation.

Q3: How can I maximize the service life of this plunger element?
A: Use high-quality, clean diesel fuel with proper filtration. Replace fuel filters regularly and avoid water contamination. Ensure the injection pump is properly lubricated and check for wear in associated components (e.g., delivery valves, camshaft). Periodically inspect for scoring or pitting and replace as needed.

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 .