Product Overview

This high-precision Barrel and Plunger Assembly K312 is a critical component for diesel fuel injection systems, designed for direct replacement and repair applications. Manufactured in Shandong, China, this unit ensures optimal fuel metering and pressure generation for efficient engine combustion. We ship globally, serving major markets including North America, Europe, Southeast Asia, and the Middle East, providing reliable parts for the global diesel engine aftermarket.

Key Features & Benefits

• Precision Engineering: Machined from high-speed steel for superior wear resistance and extended service life under high-pressure conditions.
• Optimal Fuel Efficiency: Ensures precise fuel delivery, improving combustion efficiency and reducing emissions.
• Direct Fitment: Designed as a direct OEM replacement (K312), minimizing downtime during repair or overhaul.
• Rigorous Testing: Each unit is inspected for dimensional accuracy and surface finish to ensure leak-proof performance.
• Cost-Effective Solution: High-quality aftermarket part offering significant savings compared to OEM branded alternatives without compromising performance.

Technical Specifications

OEM Cross-Reference

This component is designed to replace or serve as an alternative to the following OEM number(s):

• K312 (Primary Reference)

Note: While this part is manufactured to OEM specifications, we recommend cross-referencing your original part number to confirm fitment.

Compatibility

• Engine Type: Diesel Engines (In-line and distributor-type fuel injection pumps).
• Application: Diesel truck engines, industrial machinery, and generator sets utilizing K312 plunger specifications.
• Vehicle Make: Compatible with various diesel engine brands where the K312 element is specified.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust logistics network. Our stock is readily available for immediate dispatch to the following regions:

• North America: Fast shipping to Los Angeles, Houston, and New York ports.
• Europe: Regular shipments to Rotterdam, Hamburg, and Felixstowe.
• Asia-Pacific: Direct supply to Singapore, Dubai, and Australian industrial hubs.
• Middle East & Africa: Efficient delivery to Jebel Ali, Dammam, and Durban.

We offer flexible shipping options including air freight and sea freight to meet your urgent or bulk order requirements.

Quality Assurance

• Manufacturing Standard: Produced in ISO-compliant facilities with strict quality control measures.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Testing: Each barrel and plunger assembly is tested for hardness, surface roughness, and dimensional tolerance to ensure reliable injection performance.

FAQ

1. How do I confirm this K312 plunger fits my fuel pump?

Please check the original part number stamped on your existing plunger or barrel. If it matches “K312”, this assembly is a direct replacement. For non-standard pumps, we recommend measuring the plunger diameter and barrel length against your original component.

2. What is the recommended installation procedure?

Installation must be performed in a clean environment to prevent contamination. Lubricate the plunger with clean diesel fuel or assembly oil before insertion. Do not force the plunger into the barrel. Torque the retaining screws to manufacturer specifications to avoid distortion.

3. Can this part be used for high-performance engine tuning?

This part is designed for standard replacement/repair applications to meet OEM performance levels. While it ensures reliable fuel delivery, it is not specifically calibrated for high-performance tuning modifications. For modified engines, please consult with a fuel injection specialist.