Product Overview

This high-quality A-Type Plunger, model M5 with OE number 129506-51100 / 12950651100, is a precision-engineered component for car engine fuel injection systems. Designed as a direct replacement for worn or damaged parts, it ensures optimal fuel delivery and engine performance. We are a leading supplier based in Shandong, China, providing global shipping to major markets in North America, Europe, Asia-Pacific, the Middle East, and South America. With a low MOQ of 10 pieces and fast 3-7 day delivery via DHL, FedEx, EMS, TNT, or UPS, we support B2B buyers worldwide.

Key Features & Benefits

• High-Quality Construction: Manufactured to OEM standards for reliable and long-lasting performance in demanding engine conditions.
• Precision Fit: Standard size ensures seamless installation and compatibility with A-Type fuel injection pumps.
• Enhanced Durability: Built from premium materials to resist wear, corrosion, and high-pressure fatigue, minimizing downtime.
• Fuel Efficiency: Precise plunger geometry promotes accurate fuel metering, improving combustion and reducing emissions.
• Cost-Effective Solution: A reliable replacement part that restores pump function without the need for a full pump assembly.

Technical Specifications

OEM Cross-Reference

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

• 129506-51100
• 12950651100
• 51100

No other alternative part numbers are specified for this M5 model. Verify compatibility with your pump before ordering.

Compatibility

• Engine Type: Car engines (diesel) utilizing A-Type fuel injection pumps.
• Application: Fuel injection systems requiring a standard M5 plunger.
• Year Range: Applicable to older and current models using A-Type pump designs; consult your pump specifications for exact fitment.

Global Supply & Distribution

• Worldwide Shipping: We ship to all major global destinations via DHL, FedEx, EMS, TNT, and UPS.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, South Korea, Australia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Argentina).
• Fast Delivery: Orders processed within 24 hours and delivered to major ports and industrial centers in 3-7 days.
• Export Experience: We have extensive experience in international trade, ensuring compliant documentation and secure packaging for all shipments.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, adhering to strict quality control processes.
• Testing: Each plunger is inspected for dimensional accuracy, surface finish, and material integrity to ensure reliable operation.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your purchase.

FAQ

Q1: Is this plunger a direct replacement for my A-Type pump?

Yes, this M5 plunger is specifically designed for A-Type fuel injection pumps. However, always verify the OE number (129506-51100) and model (M5) against your original part to confirm fitment. If your pump uses a different plunger model or size, this part may not be compatible.

Q2: What is the typical installation procedure for this plunger?

Installation should be performed by a qualified diesel technician. The process involves disassembling the pump head, removing the old plunger and barrel assembly, cleaning the bore, and carefully inserting the new plunger. Proper lubrication and torque settings are critical to avoid damage and ensure correct fuel delivery. Always refer to the pump manufacturer’s service manual.

Q3: How can I maximize the lifespan of this plunger?

To ensure longevity, use clean, high-quality diesel fuel and replace fuel filters regularly. Avoid running the engine with contaminated fuel, as dirt and water can cause rapid wear. Additionally, maintain proper fuel injection timing and pump calibration as per the engine specifications. Regular inspection of the pump for leaks or unusual noise will help identify issues early.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .