
Product Overview
This premium Doosan DX12 Full Gasket Kit is engineered to provide a complete sealing solution for engine overhauls and rebuilds. We supply this critical spare part to industrial equipment operators, fleet managers, and distributors worldwide, with major markets including North America, Europe, the Middle East, and Asia-Pacific. Our global logistics network ensures reliable delivery to key industrial ports and hubs.
Key Features & Benefits
- Complete Engine Seal: A comprehensive set containing all necessary gaskets and seals for a full DX12 engine rebuild, ensuring no leaks and optimal compression.
- Precision OEM Fit: Manufactured to exact OEM specifications and dimensions, guaranteeing perfect fitment and hassle-free installation without modification.
- Durable Construction: Made from high-quality, heat-resistant materials designed to withstand the extreme pressures and temperatures of diesel engine operation.
- Enhanced Engine Performance: Proper sealing restores engine compression, prevents fluid contamination, and contributes to optimal fuel efficiency and power output.
- Cost-Effective Maintenance: Purchasing a complete kit is more economical than individual gaskets and ensures all sealing components are replaced simultaneously for long-term reliability.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Full Gasket Kit |
| Part Number | 65.03901-0077, 65.03901-0078 |
| Engine Model | Doosan DX12 |
| Engine Type | Diesel |
| Size / Dimensions | OEM Standard Size |
| Weight | Approx. 6 kg |
| Packing | Plastic Bag, Box, Carton |
| Selling Unit | Single Kit |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This full gasket kit is a direct replacement for the following OEM part numbers:
- Doosan: 65.03901-0077
- Doosan: 65.03901-0078
Please verify your engine’s serial number and existing part numbers to ensure correct compatibility before ordering.
Compatibility
Primary Engine Application:
- Doosan DX12 Diesel Engine
Typical Equipment & Machinery:
- Forklifts
- Excavators
- Trucks
- Loaders
- Bulldozers
- Buses
- Other industrial machinery powered by the Doosan DX12 engine.
Global Supply & Distribution
As a specialist supplier of heavy-duty engine components, we maintain a robust international supply chain. We export directly from our hub in Guangdong, China, to partners and customers across the globe.
- Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), Southeast Asia, and South America.
- Efficient Logistics: We offer consolidated sea freight and expedited air freight options to major ports and airports worldwide, including Los Angeles, Rotterdam, Dubai, Singapore, and Sydney.
- Trade Compliance: All shipments are prepared with complete commercial documentation (Packing List, Commercial Invoice, Certificate of Origin) to ensure smooth customs clearance.
Quality Assurance
We are committed to supplying parts that meet the demanding standards of the heavy equipment industry.
- Manufacturing Standards: Components are produced using certified materials and precise tooling to match OEM blueprints.
- Warranty: Backed by a 6-month warranty from the date of delivery against manufacturing defects.
- Testing & Inspection: Each batch undergoes rigorous quality checks. A machinery test report is available, and we provide video outgoing-inspection upon request to verify part quality and packaging before shipment.
FAQ
Q: Is this gasket kit suitable for both preventative maintenance and engine repair?
A: Yes, absolutely. This full gasket kit is the recommended solution for both scheduled major overhauls (preventative maintenance) and for repairing engines suffering from oil leaks, coolant leaks, or compression loss.
Q: Does the kit include all necessary seals for the DX12 engine?
A: Yes, this is a full gasket kit. It is designed to include the head gasket, valve cover gasket, oil pan gasket, front and rear main seals, manifold gaskets, and all other necessary O-rings and sealing washers required for a complete engine reseal. Please contact us for a detailed contents list if needed.
Q: What documentation is provided with the shipment for international buyers?
A> For all international B2B orders, we provide a full suite of export documents to ensure compliance and easy customs processing. This includes a Commercial Invoice, Packing List, and Bill of Lading/Air Waybill. A Certificate of Origin can also be provided upon request.
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 .