Product Overview

This high-quality Fuel Injection Plunger & Barrel Assembly is a critical component for diesel engine fuel systems, designed for precise fuel metering and injection. Manufactured to meet or exceed OEM specifications, this assembly is ideal for replacing worn or failed units in heavy-duty trucks and industrial diesel engines. We provide global shipping with reliable logistics to major industrial centers across North America, Europe, Asia-Pacific, the Middle East, and Africa, ensuring you receive the parts you need for maximum uptime.

Key Features & Benefits

• Precision Engineering: Manufactured to standard sizes with tight tolerances for optimal fuel pressure and injection timing.
• High Durability: Constructed from hardened alloy steel to withstand extreme pressures and resist wear, extending service life.
• Reliable Performance: Ensures consistent engine power output, reduced fuel consumption, and lower emissions.
• Direct Replacement: Designed as a direct fit for multiple plunger models (PT20, PT22, PT25, PT27, PT77, PT78), simplifying inventory management.
• Cost-Effective Solution: A high-quality aftermarket alternative to expensive OEM parts, backed by a 5-month warranty.

Technical Specifications

OEM Cross-Reference

This plunger and barrel assembly replaces or is equivalent to the following OEM part numbers:

• 134176-1420 (Primary OEM Number)
• 9443610847 (Alternative Reference)

Model Cross-Reference: This single assembly is compatible with multiple plunger size variants: PT20, PT22, PT25, PT27, PT77, and PT78. Please verify your existing part number to ensure correct fitment.

Compatibility

• Engine Application: Designed for use in a wide range of diesel engines, commonly found in heavy-duty trucks and industrial machinery.
• Vehicle Makes: Suitable for various diesel engine trucks and equipment requiring PT-series plunger assemblies.
• System: Fuel Injection Pump.
• Note: Always compare the model number (PT20, PT22, etc.) and OEM number (134176-1420) against your original part before purchasing to confirm compatibility.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with extensive export experience. Our logistics network supports fast and reliable delivery to major ports and industrial hubs around the world.

• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, South Korea, Singapore), Middle East (UAE, Saudi Arabia), and Africa (Nigeria, South Africa).
• Shipping: We offer express (DHL, FedEx, UPS), air freight, and sea freight options based on your urgency and budget.
• Trade Compliance: All products are packaged and documented according to international trade standards for hassle-free customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities (Shandong, China) with strict quality control processes.
• Testing: Each unit is inspected for dimensional accuracy, surface finish, and pressure integrity before shipment.
• Warranty: We stand behind the quality of our parts with a 5-month warranty against manufacturing defects.

FAQ

Q: How do I know which PT model (PT20, PT22, etc.) I need?
A: The model number (PT20, PT22, PT25, PT27, PT77, or PT78) is typically stamped on the original plunger barrel or listed in your engine’s service manual. This number indicates the specific diameter and pitch of the plunger. If you cannot find the model number, provide us with the OEM number (e.g., 134176-1420) or the original part’s physical dimensions for cross-referencing.

Q: What is included in the package? Is it a matched set?
A: The package includes one (1) plunger and one (1) barrel as a matched set. They are precision-lapped together to ensure the correct clearance for optimal fuel pressure. It is critical to install them as a pair and not mix them with other components.

Q: What maintenance is recommended before installation?
A: Before installation, thoroughly clean the plunger and barrel with clean diesel fuel or a non-residue solvent. Do not use abrasive cloths. Lightly lubricate the plunger with clean engine oil during assembly. Ensure the fuel pump housing and all fuel lines are clean to prevent contamination, which is the leading cause of premature plunger failure.