Product Details
Product Overview
This high-quality Lucas Fuel Injection Plunger, OEM number 512506-53 (also referenced as 51250653), is engineered for precision performance in diesel engine fuel systems. As a critical component for fuel delivery, this plunger ensures optimal pressure and metering for efficient combustion. We are a leading supplier based in Shandong, China, serving a global B2B clientele with reliable shipping to North America, Europe, Asia-Pacific, the Middle East, and South America. Our inventory supports fast dispatch to major industrial hubs and ports worldwide.
Key Features & Benefits
- Precision Engineering: Manufactured to standard OE specifications (512506-53) for exact fit and reliable fuel metering.
- Durable Construction: Made from high-grade materials to withstand the high pressures and wear of continuous diesel engine operation.
- Enhanced Engine Performance: Ensures consistent fuel delivery, improving combustion efficiency, power output, and reducing emissions.
- Direct Replacement: Designed as a drop-in replacement part for existing Lucas fuel injection pumps, minimizing downtime for repair shops and fleet maintenance.
- Reliable Supply: With a low MOQ of 10 pieces and stock availability, we support both small repairs and bulk wholesale orders.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 512506-53 / 51250653 |
| Product Name | Fuel Injection Plunger |
| Condition | New |
| Size | Standard |
| Application | Fuel Injection System |
| Quality | High-Quality |
| Warranty | 6 Months |
| Place of Origin | Shandong, China |
| Single Package Size | 25 x 10 x 15 cm |
| Single Gross Weight | 0.200 kg |
OEM Cross-Reference
This plunger is a direct cross-reference for the following OEM numbers:
- Lucas / CAV: 512506-53
- Alternate Number: 51250653
Please verify your existing part number against 512506-53 to confirm compatibility.
Compatibility
This plunger is designed for use in Lucas / CAV fuel injection pumps commonly found in various diesel engines. It is a standard component used in repair and overhaul kits for automotive and industrial diesel engines. Specific fitment is determined by the fuel pump model; please ensure this part number matches your pump’s requirements.
Global Supply & Distribution
We specialize in the export of diesel engine parts with a robust logistics network. Our shipping capabilities include:
- Express Carriers: DHL, FedEx, EMS, TNT, and UPS for urgent orders (3-7 days delivery).
- Major Markets: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
- Ports Served: Fast shipping to major ports like Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
- Trade Compliance: We adhere to international export standards and offer flexible payment terms (T/T, PayPal, Western Union) to facilitate smooth B2B transactions.
Quality Assurance
Every Lucas 512506-53 plunger is inspected to meet high quality standards before shipping. Our manufacturing process focuses on precision and durability. We back our products with a 6-month warranty against manufacturing defects, ensuring your investment is protected. Our 24-hour customer service team is available to assist with any inquiries.
FAQ
Q1: How do I confirm this plunger fits my fuel injection pump?
A: Please check the part number stamped on your existing plunger or consult your pump’s service manual. This item is specifically for Lucas/CAV pumps requiring OEM number 512506-53. If you have a different number, please contact our team with your pump model for cross-reference assistance.
Q2: What is the installation process for this plunger?
A: Installation requires disassembly of the fuel injection pump. This is a precision component; we recommend installation by a qualified diesel technician. Ensure the working area is clean to prevent contamination. Lubricate the plunger with clean diesel fuel or assembly oil during installation.
Q3: How should I store spare plungers?
A: Store in a clean, dry environment within its original packaging to prevent corrosion and physical damage. Avoid exposure to extreme temperatures and moisture. For long-term storage, keep in a sealed container with a desiccant pack.
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 .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.
Related Products
More Products In This Catalog
-
-
High Quality Diesel Fuel Injector Spring 2434614020 for Engine Models | High Speed Steel
MOQ: 1pcs
Price: Negotiable
-
High Speed Steel Diesel Fuel Injector Nozzle DN20PD32 150P068 for Common Rail Injection System
MOQ: 1pcs
Price: Negotiable
-
DENSO Diesel Fuel Injector Nozzle 093400-7680 DLLA146P768 for Hitachi Excavator Engine
MOQ: 1pcs
Price: Negotiable
Quick Inquiry
Lucas Fuel Injection Plunger 512506-53 | OEM 51250653 | Standard Size | 6-Month Warranty
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
- OEM number is included automatically when available.
- Add quantity, destination, and packing needs for a faster quote.
Inquiry Form
Send Inquiry
Leave your email and phone / WhatsApp so sales can follow up directly.
Inquiry Desk
Send Inquiry
Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.