Product Overview

This is a premium-quality High-Pressure Fuel Injection Plunger, model A161 (OEM reference 131152-3420 / 1311523420), designed for precision fuel delivery in diesel engine applications. Manufactured in Shandong, China, this plunger is a critical component for the fuel injection system, ensuring optimal engine performance and fuel efficiency. We serve a global B2B clientele, with regular shipments to markets in North America, Europe, Southeast Asia, the Middle East, and South America. Our logistics network ensures fast and reliable delivery to major industrial hubs and ports worldwide.

Key Features & Benefits

• High-Precision Engineering: Manufactured to exacting tolerances for a perfect seal and consistent fuel metering.
• Superior Durability: Constructed from high-grade alloy steel with advanced heat treatment for extended service life.
• Enhanced Fuel Efficiency: Optimized design contributes to better atomization and complete combustion, reducing fuel consumption.
• Direct Replacement: A true “A-type” plunger, designed for a straightforward, drop-in replacement to minimize downtime.
• Rigorous Testing: Each unit undergoes strict quality control checks to ensure reliable performance under high-pressure conditions.

Technical Specifications

OEM Cross-Reference

This plunger is a direct replacement for the following OEM and reference numbers:

• OEM Number: A161
• Cross Reference 1: 131152-3420
• Cross Reference 2: 1311523420

Please verify your existing part number before ordering.

Compatibility

This A-Type plunger is designed for use in various diesel engine fuel injection pumps, commonly found in:

• Engine Types: Automotive diesel engines, industrial diesel engines.
• Vehicle Applications: Light-duty and heavy-duty trucks, agricultural tractors, construction machinery, and generator sets.
• Specific Fitment: The A161 model is typically used in in-line fuel injection pumps (e.g., Bosch PE, A, MW, P-type pumps). Please consult your pump manual for specific fitment.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust global logistics network. Our capabilities include:

• Worldwide Shipping: Reliable shipping partners including DHL, FedEx, EMS, TNT, and UPS.
• Major Markets: We actively supply to North America, Europe (EU), Asia-Pacific, the Middle East (GCC), Africa, and South America.
• Fast Delivery: Stock items are dispatched within 3-7 business days to major ports and industrial zones.
• Trade Expertise: Experienced in international trade documentation and compliance for smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities in Shandong, China.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Testing: Each plunger is tested for dimensional accuracy, surface finish, and pressure integrity to ensure it meets OE specifications.

FAQ

Q1: How do I confirm this A161 plunger fits my injection pump?
A: Please check the model number stamped on your existing plunger or your injection pump’s data plate. The part numbers A161, 131152-3420, and 1311523420 are the primary identifiers. If you are unsure, provide us with a photo of your old part or the pump model for verification.

Q2: What is the installation procedure for this high-pressure plunger?
A: Installation should be performed by a qualified diesel technician. The process involves removing the delivery valve and spring, carefully extracting the old plunger and barrel, cleaning the pump housing, and installing the new plunger set with proper lubrication. It is critical to maintain absolute cleanliness to prevent damage.

Q3: What is the typical lead time for bulk orders (over 100 pieces)?
A: For stock items, we can ship within 3-7 days. For larger bulk orders that require production, please contact our sales team for a specific lead time, which typically ranges from 15-30 days depending on the quantity and current production schedule.