Product Overview

This is a premium, brand-new Fuel Injection Pump Plunger (Part Number: P112 / 134151-3220) designed for precision fuel delivery in diesel engines. As a critical component of the fuel injection system, this plunger ensures optimal atomization and combustion efficiency. We offer global shipping, serving major B2B markets across North America, Europe, Southeast Asia, and the Middle East. This part is ideal for replacement or repair of your existing fuel pump assembly, restoring engine performance and fuel economy.

Key Features & Benefits

• High-Quality Manufacturing: Crafted from hardened alloy steel for superior wear resistance and long service life.
• Precision Engineering: Manufactured to exact OEM specifications (134151-3220) for a perfect fit and reliable seal.
• Enhanced Durability: Designed to withstand high-pressure injection cycles, reducing the risk of premature failure.
• Improved Fuel Efficiency: Restores proper fuel metering, helping to optimize combustion and reduce fuel consumption.
• Reliable Performance: A totally new part, ensuring consistent starting and smooth engine operation.

Technical Specifications

OEM Cross-Reference

• Primary OEM Number: 134151-3220
• Alternate/Model Number: P112

This part is a direct replacement for the listed OEM number. Please verify your engine’s requirements before ordering.

Compatibility

• Engine Models: Designed for use in Hitachi and Isuzu diesel engines that utilize the P112 type fuel injection pump plunger.
• Vehicle/Equipment Applications: Suitable for excavators, loaders, agricultural tractors, and other heavy machinery powered by compatible diesel engines.

Global Supply & Distribution

We provide efficient global logistics to support your business. Our supply chain is designed for fast and reliable delivery to major ports and industrial centers worldwide.

• Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Japan, Korea), Middle East (UAE, Saudi Arabia), and Africa.
• Shipping: We offer express, air freight, and sea freight options. Bulk orders (MOQ: 48 pcs) are shipped promptly from our warehouse in Shandong, China.
• Export Experience: We are experienced in international trade and customs compliance, ensuring smooth delivery to your location.

Quality Assurance

• Manufacturing Standard: Produced in a certified facility with strict quality control measures.
• Testing: Each plunger is inspected for dimensional accuracy and surface finish to ensure it meets OEM performance standards.
• Warranty: This part is covered by a standard warranty against manufacturing defects. Please contact our professional service team for details.

FAQ

Q1: How do I verify that this P112 plunger (134151-3220) fits my fuel pump?
A: Please check the part number on your existing plunger or your fuel pump’s service manual. The model number P112 and OEM number 134151-3220 must match the specifications of your pump. If you are unsure, please contact us with your pump model and engine serial number for confirmation.

Q2: What is the proper installation procedure for this plunger?
A: Installation requires mechanical expertise. Ensure the pump housing and barrel are perfectly clean. Lubricate the plunger with clean diesel fuel or assembly oil before insertion. Do not force the plunger. It must slide freely without binding. We recommend installation by a certified diesel technician.

Q3: What maintenance is required for this fuel pump plunger?
A: The plunger itself is a wear item. Its lifespan depends on fuel quality and operating conditions. To maximize its life, always use clean, high-quality diesel fuel and replace fuel filters at recommended intervals. If you notice hard starting, engine misfire, or black smoke, inspect the plunger and barrel assembly for wear.