Product Details
Product Overview
This high-precision PT40 plunger is a critical component for the fuel injection pump in diesel engines, specifically designed for excavator applications. Manufactured to exacting standards in Shandong, China, a global hub for heavy machinery parts, this component is engineered for reliability and performance. We supply directly to distributors, workshops, and fleet operators worldwide, with major markets including North America, Europe, the Middle East, and the Asia-Pacific region.
Key Features & Benefits
- Precision Engineered: Manufactured with tight tolerances to ensure optimal fuel metering and injection timing for maximum engine efficiency and power output.
- Enhanced Durability: Built from high-grade materials to withstand the high-pressure environment within the injection pump, ensuring a long service life and reduced downtime.
- Professional Quality Tested: Each plunger undergoes 100% professional testing to verify dimensional accuracy, surface finish, and functional performance before shipment.
- Direct Fit Replacement: Designed as an exact match for the OEM specification, ensuring seamless installation and reliable operation in compatible PT Series pumps.
- Global Logistics Support: Packaged securely in neutral packaging for safe international transit, with fast delivery to major industrial ports and logistics hubs.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | PT40 |
| OE / OEM Number | PlungerPT40 |
| Condition | New |
| Type | Diesel Fuel Injection Pump Plunger |
| Application Model | PT40 |
| Single Weight | 0.6 kg |
| Package Dimensions | 35 x 15 x 20 cm |
| Packing | Neutral Package |
OEM Cross-Reference
This part is a direct replacement for the following OEM reference number:
- Primary OE Number: PlungerPT40
Note: Always verify the part number stamped on your original component for exact compatibility.
Compatibility
This PT40 plunger is designed for use in specific PT Series diesel fuel injection pumps. It is a critical spare part for maintenance and overhaul of engines in heavy machinery, particularly:
- Engine/Application: Compatible with diesel engines utilizing the PT40 model fuel injection pump.
- Common Use: Often found in excavators, construction equipment, and industrial diesel power units that employ this specific pump model.
Global Supply & Distribution
We are a professional B2B supplier with extensive experience in the international export of diesel engine components. Our streamlined supply chain ensures efficient delivery to key markets:
- Worldwide Shipping: We ship to all major continents including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore).
- Fast Delivery: Standard delivery time is 3-7 days from order confirmation, with expedited options available to major ports and logistics centers.
- Trade Compliance: All documentation (commercial invoice, packing list, certificate of origin) is provided for smooth customs clearance.
- Flexible Payment: We accept T/T, Western Union, and PayPal to facilitate easy international transactions for our B2B clients.
Quality Assurance
We stand behind the quality of our components to ensure they meet the demands of professional use.
- Manufacturing Standard: Produced in a facility specializing in fuel system components, adhering to strict quality control protocols.
- Warranty: Backed by a 3-month warranty against manufacturing defects from the date of delivery.
- Testing: Every plunger is professionally tested to ensure it meets precise dimensional and functional specifications, guaranteeing performance parity with the original part.
FAQ
Q: How do I confirm this PT40 plunger is the correct part for my injection pump?
A: The surest method is to match the part number. Locate the part number stamped on your original plunger or the injection pump’s identification plate. It should match “PT40” or the OEM number “PlungerPT40”. If unsure, consult your pump’s service manual or contact our technical support with your engine and pump model details.
Q: What is the typical installation process for this plunger?
A: Installation requires specialized knowledge and a clean environment. The fuel injection pump must be disassembled, the old plunger and barrel removed, and the new matched plunger and barrel set installed with precise calibration. We recommend this task be performed by a qualified diesel technician to ensure proper fitment, timing, and pump performance.
Q: Do you offer support for bulk orders for my workshop or distribution business?
A> Absolutely. We specialize in B2B supply and welcome bulk inquiries. While the Minimum Order Quantity (MOQ) is 1 piece, we offer significant discounts and dedicated logistics support for container loads or regular large-volume purchases. Contact our sales team for a customized quote.
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.
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Quick Inquiry
PT Series Diesel Fuel Injection Pump Plunger PT40 for Excavator Engines
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.
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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.