Product Overview

This high-pressure plunger, model A731 (OEM reference 131153-5220 / 1311535220), is a critical component for diesel fuel injection systems. Designed for precision and durability, this plunger ensures optimal fuel delivery and engine performance. We are a leading supplier based in Shandong, China, with extensive experience exporting to global markets including North America, Europe, Southeast Asia, the Middle East, and Africa. All orders are shipped within 3-7 days via DHL, FedEx, EMS, TNT, or UPS, ensuring fast and reliable delivery to your doorstep or warehouse.

Key Features & Benefits

• High-Quality Construction: Manufactured to OE specifications for a perfect fit and reliable operation.
• Enhanced Durability: Built from premium materials to withstand high pressure and wear, extending service life.
• Precise Fuel Metering: Ensures accurate fuel injection timing and volume for improved engine efficiency and reduced emissions.
• Direct Replacement: Designed as a standard size replacement part for easy installation in car engines.
• Rigorous Testing: Each plunger undergoes strict quality control checks to guarantee performance.

Technical Specifications

OEM Cross-Reference

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

• 131153-5220 (Bosch-Type Reference)
• 1311535220 (Alternative Format)
• A731 (Model/OEM Number)

Please verify your existing part number against the list above to ensure compatibility.

Compatibility

• Vehicle Application: Car Engine
• System: Fuel Injection System (High-Pressure Pump)
• Compatible Models: Commonly used in various diesel engines requiring the A731 plunger type.
• Note: This is a standard-size component. Verify your engine model and injection pump specifications before purchasing.

Global Supply & Distribution

We are a dedicated exporter of diesel engine parts, serving a global client base. Our logistics network ensures fast and secure delivery worldwide:

• Worldwide Shipping: We ship to all major countries via DHL, FedEx, EMS, TNT, and UPS.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), Africa (Nigeria, South Africa), and South America (Brazil, Argentina).
• Fast Delivery: Orders are processed and dispatched within 3-7 working days.
• B2B Expertise: We have extensive experience in international trade, offering flexible payment terms (T/T, PayPal, Western Union) and professional export documentation.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility in Shandong, China, following strict quality control procedures.
• Warranty: All plungers come with a 6-month warranty against manufacturing defects.
• Testing: Each part is inspected for dimensional accuracy, surface finish, and pressure resistance before packaging.
• Service: Our team provides 24-hour customer service to assist with inquiries and after-sales support.

FAQ

Q1: How do I confirm this plunger (131153-5220) fits my injection pump?
A: Please check the existing part number on your plunger or your injection pump’s service manual. The primary identifiers are 131153-5220 and A731. If you are unsure, contact our support team with your pump model and engine details for verification.

Q2: What is the recommended installation procedure for this high-pressure plunger?
A: Installation should be performed by a qualified diesel mechanic. Ensure the pump housing and all mating surfaces are clean. Lubricate the plunger with clean diesel fuel or assembly oil before insertion. Follow the manufacturer’s torque specifications for the retaining components to avoid damage.

Q3: Does this part come with a warranty, and what is covered?
A: Yes, this plunger comes with a 6-month warranty against manufacturing defects. This covers issues like material flaws or dimensional inaccuracies. The warranty does not cover damage caused by improper installation, contamination in the fuel system, or normal wear and tear.