Product Details
Product Overview
This premium K165 Plunger and Barrel Assembly is a critical component for diesel engine fuel injection systems, designed for reliable replacement and repair. Manufactured in Shandong, China, this high-quality element ensures precise fuel metering and injection pressure for optimal engine performance. We serve a global B2B clientele, with fast shipping to major industrial hubs across North America, Europe, Asia-Pacific, the Middle East, and South America.
Key Features & Benefits
- Precision Engineering: Constructed from high-speed steel for exceptional durability and wear resistance, ensuring a long service life.
- Optimized Performance: Designed to restore original engine power and fuel efficiency by delivering precise fuel injection timing and volume.
- Direct Replacement: A perfect fit for K165 fuel pump systems, simplifying the repair process for diesel truck and car engines.
- Rigorous Quality Control: Each unit is tested to meet high-quality standards, providing reliable operation under demanding conditions.
- Compact & Lightweight: With a weight of just 0.07kg, this assembly is easy to handle and install.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | K165 |
| Product Name | Plunger and Barrel Assembly |
| Type | Diesel Engine Fuel Pump Element |
| Material | High-Speed Steel |
| Application | Fuel Injection System |
| Condition | New |
| Weight | 0.07 kg |
| Package Size | 10 x 5 x 3 cm |
| Gross Weight | 0.075 kg |
| MOQ | 48 pcs |
| Warranty | 4 Months |
OEM Cross-Reference
This plunger and barrel assembly is designed to meet or exceed OEM specifications for the following reference number:
- OEM Number: K165
- Alternative Reference: K165 Fuel Pump Element
Compatibility
- Engine Type: Diesel truck and car engines.
- System: Compatible with mechanical fuel injection pumps using the K165 element standard.
- Application: Ideal for repair and replacement in heavy-duty and light-duty diesel vehicles requiring the K165 plunger and barrel set.
Global Supply & Distribution
- Worldwide Shipping: We offer reliable shipping to all major global markets, including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
- Fast Delivery: Efficient logistics to major ports and industrial centers, ensuring minimal downtime for your operations.
- Export Expertise: Experienced in international trade, with secure packaging (Neutral or WX Packing) and customs compliance.
- Bulk Orders: Competitive pricing for wholesale quantities (MOQ 48 pcs) with professional service and support.
Quality Assurance
- Manufacturing Standards: Produced in a facility in Shandong, China, with strict quality control processes.
- Material Integrity: Made from high-speed steel to withstand high pressure and temperature within the fuel injection system.
- Warranty: Backed by a 4-month warranty against manufacturing defects.
- Testing: Each assembly is inspected for dimensional accuracy and surface finish to guarantee a perfect seal and long service life.
FAQ
Q1: What is the exact function of the K165 plunger and barrel assembly in a diesel engine?
The plunger and barrel assembly is the core metering component of a diesel fuel injection pump. It pressurizes and precisely measures the amount of fuel delivered to the injector. The plunger’s rotation and vertical movement control the timing and volume of fuel injection, directly impacting engine power and efficiency.
Q2: How do I know if this K165 assembly is the correct replacement for my pump?
This assembly is specifically designed for fuel pumps that use the K165 element. You should verify the part number stamped on your existing plunger and barrel. If it matches “K165,” this is the correct direct replacement. Always check the physical dimensions (length and diameter) against your old part to ensure a perfect fit.
Q3: What is the recommended installation procedure and maintenance for this part?
Installation should be performed by a qualified diesel technician in a clean environment. The plunger and barrel are a matched set and must not be interchanged with other sets. Lubricate with clean diesel fuel during installation. After installation, the fuel injection pump must be re-calibrated on a test bench to ensure correct fuel delivery settings. Regular fuel filter changes are essential to prevent contamination and extend the life of the plunger and barrel.
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.
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Quick Inquiry
K165 Diesel Engine Fuel Pump Plunger & Barrel Assembly – High-Speed Steel, 0.07kg, Fuel Injection Element
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.