Product Overview

This is a premium Lucas A503243 fuel injection plunger, engineered as a direct replacement for original equipment in diesel fuel injection systems. Manufactured to exacting OEM specifications in Shandong, China, this high-quality component is supplied globally to workshops, distributors, and fleet operators in North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable performance for critical engine repairs.

Key Features & Benefits

• Precision Engineering: Manufactured to strict tolerances for optimal fuel metering and injection timing, ensuring engine efficiency and power output.
• Superior Durability: Crafted from high-grade materials to withstand the high pressures and abrasive environment within the fuel injection pump, extending service life.
• Guaranteed Fitment: Designed as an exact match for the original Lucas A503243 specification, guaranteeing seamless installation and reliable operation.
• Global Compliance Ready: Supplied in neutral packaging ideal for international export and distribution, with support for all major global shipping and payment methods.
• Cost-Effective Solution: Provides OEM-level quality and performance at a competitive price, reducing downtime and maintenance costs for B2B clients.

Technical Specifications

OEM Cross-Reference

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

• Lucas: A503243, A503 243
• OEM Number: A503243

Note: Always verify cross-references with your engine’s service manual or a qualified technician before purchase.

Compatibility

This Lucas A503243 plunger is designed for use in diesel fuel injection pumps. It is a critical component for various industrial and automotive diesel engines that utilize Lucas injection systems. Specific compatibility should be confirmed using the OEM part number against your engine’s fuel pump model.

Global Supply & Distribution

We specialize in the seamless export of high-quality engine components to a worldwide B2B clientele. Our logistics network ensures fast and reliable delivery to major industrial hubs and ports across:

• North America: USA, Canada, Mexico
• Europe: UK, Germany, France, Italy, Benelux, Scandinavia
• Asia-Pacific: Australia, Japan, South Korea, Southeast Asia
• Middle East & Africa: UAE, Saudi Arabia, South Africa

We support shipments via DHL, FedEx, UPS, TNT, and EMS, with an average delivery time of 3-7 days to most destinations. We are experienced in international trade documentation and compliance.

Quality Assurance

Every plunger is manufactured under controlled conditions to meet or exceed original equipment standards for dimensional accuracy and material integrity.

• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Rigorous Testing: Components undergo stringent quality checks, including dimensional verification and surface finish inspection, to ensure reliable performance.
• B2B Focus: We maintain consistent quality across production runs to support the supply chain needs of distributors and large-scale repair operations.

FAQ

Q1: How do I confirm this plunger is the correct part for my specific fuel injection pump?
A1: The most reliable method is to match the part number stamped on your original plunger or listed in your engine’s official service parts catalog with our primary part number A503243. Cross-referencing the OEM number is essential for correct fitment.

Q2: What is the recommended procedure for installing this fuel injection plunger?
A2: Installation should only be performed by a qualified technician. The fuel injection pump is a precision assembly. The pump must be disassembled in a clean environment, the old plunger and barrel replaced as a matched set (if applicable), and the pump recalibrated on a dedicated test bench to ensure proper fuel delivery and timing.

Q3: What are the MOQ and payment terms for international B2B orders?
A3: The Minimum Order Quantity (MOQ) is 10 pieces. We cater to bulk orders for distributors and offer flexible payment terms including T/T (Bank Transfer), PayPal, and Western Union to facilitate easy international transactions for our global partners.

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 .