Part Name: Cylinder Head 3966454 3934747 3934746
Part Number: 3966454 3934747 3934746
Basic Info.
| Parts no. | 3966454 3934747 3934746 | Material | steel |
| Type | CYLINDER HEAD | Parts Type | Engine Parts |
| Compatibility | Cummins | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model：3966454 3934747 3934746
- Date First Listed：2026/03/18
- Manufacturer：Diron Parts
Product Description
- Part Number：3966454 3934747 3934746
- Part Type：Cylinder Head
- Description:Cylinder Head 3966454 3934747 3934746 for Cummins
The Cylinder Head Assembly for Cummins 6BT (5.9L) is a complete, ready-to-install aftermarket unit designed for the popular 6BT / 6BTA series engines. This fully loaded head features an all-new casting that is CNC-machined to precise tolerances, pressure-tested, and pre-assembled with premium valves, springs, guides, seats, injector sleeves, and seals – providing a turn-key solution for major engine overhauls in heavy-duty trucks, construction equipment, agricultural machinery, marine propulsion, and generator-set applications.
Key Features & Benefits
- All-new casting with reinforced valve bridges and deck areas for sustained high-combustion pressure
- Pre-installed premium exhaust valves and heavy-duty valve springs for consistent operation
- Bronze valve guides, copper injector sleeves, and Viton seals factory-fitted
- Precision-machined combustion chambers and ports for optimized flow and compression
- 100 % pressure-tested to 100 psi and vacuum-verified for zero porosity or leaks
- Arrives fully assembled and ready to bolt on, significantly reducing overhaul time
Common Applications (Cummins® Compatibility)
- Engine: 6BT / 6BTA5.9 (all ratings – mechanical and early electronic variants)
- Typical Machines & Equipment: – Heavy-Duty Trucks (Dodge Ram Cummins conversions, various OEMs) – Construction Equipment (excavators, wheel loaders, backhoe loaders) – Agricultural Tractors and Combines – Marine Propulsion and Auxiliary Engines – Generator sets and industrial power units
Technical Specifications
- Engine Model Reference: Cummins 6BT / 6BTA5.9
- Configuration: 12-valve, 6-cylinder inline
- Weight (loaded): ≈ 110–120 kg (243–265 lb)
Important Note:
- The OE name Caterpillar, Cummins, Komatsu are only used as reference information in here. does not mean our product are OEM. We only work replacement products, are used those machineries in aftermarket.
- While this description provides general information, specific details such as size, weight and exact material may vary by manufacturer and specific application. To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.
- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.
- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.
