| Brand | Diron Parts |
|---|---|
| Product Name | Truck Engine Cylinder Head |
| Part Number / OE Number | 3966454 |
| Reference Numbers | 3925400 |
| Application | Truck diesel engine repair and rebuilding |
| Compatible Brand Reference | Compatible with selected Cummins 6BT / 6B5.9 truck diesel engine applications; confirm by part number and engine configuration before ordering. |
| Vehicle Type | Truck / commercial vehicle |
| Material | Cast iron / machined metal surfaces |
| Size / Dimension | Please confirm before ordering. |
| Condition | New |
| Product Type | Diesel engine cylinder head |
| Purpose | Aftermarket Replacement / Repair |
| Quality | Manufactured for truck diesel engine replacement and overhaul service |
| MOQ | Please confirm before ordering. |
| Warranty | Please confirm before ordering. |
| Packing | Neutral export packing or customized packing available upon request |
| Delivery Time | Please confirm before ordering. |
| Place of Origin | Henan, China |
Product Details
Product Function
The cylinder head closes the upper combustion chambers and supports valve-train, intake, exhaust, coolant, and sealing functions required in a truck diesel engine.
OE Number and Compatibility
The principal part number reference is 3966454. Compatible with selected Cummins 6BT / 6B5.9 truck diesel engine applications; confirm by part number and engine configuration before ordering. The compatibility statement is provided as a matching reference and does not replace technical fitment confirmation.
Material and Structure
This replacement cylinder head uses a heavy cast structure with machined mounting and sealing surfaces. Valve and accessory configuration should be checked against the original engine before ordering.
Application and Use
This product is intended for truck diesel engine overhaul, replacement repair, fleet workshop service, commercial vehicle parts distribution, and export aftermarket supply. It is not presented as a genuine original or OEM-certified part.
Replacement Benefits
A correctly confirmed replacement component supports planned engine rebuilding and can help workshops and distributors maintain an efficient repair-parts supply. Selection should be based on the original part reference and technical requirements rather than appearance alone.
Quality Control
Diron Parts recommends confirming the part number, engine model, mounting features, dimensions, and required configuration before shipment. Product photos and packing requirements can be reviewed for B2B orders before delivery.
Packing and Supply Support
Neutral export packing and customized packing may be arranged according to purchasing requirements. Please confirm stock, MOQ, delivery schedule, labeling request, and warranty terms before placing a bulk order.
FAQ
What is the main part number for this Truck Engine Cylinder Head?
The main part number reference is 3966454. Please compare it with the original component and engine information before ordering.
Is this an aftermarket replacement part?
Yes. This product is supplied by Diron Parts as a new aftermarket replacement part for truck diesel engine repair and rebuilding use.
Which engine applications can it fit?
Compatible with selected Cummins 6BT / 6B5.9 truck diesel engine applications; confirm by part number and engine configuration before ordering.
How do I confirm fitment before ordering?
Please send the engine model, original part number, casting or reference number when available, and photos or dimensions of the removed component for confirmation.
What material is used for this product?
The material reference is Cast iron / machined metal surfaces Final material and technical requirements should be confirmed before placing an order.
What is the MOQ?
MOQ depends on stock availability and purchase requirements. Please confirm before ordering.
What packing is available?
Neutral export packing or customized packing may be available according to order requirements. Please confirm before shipment.
What warranty is offered?
Warranty terms depend on the order and product specification. Please confirm the agreed warranty terms before ordering.










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