Specifications 3965939
| Part Number | 3965939 |
|---|---|
| Brand | Cummins |
| Category | Cummins Cylinder Block |
| Condition | New |
| Warranty | 12 months |
| Minimum Order Quantity | 1 piece |
| Lead Time | 7-15 working days |
| Payment Terms | T/T, L/C, Western Union |
| Export Packing | Carton with foam, wooden crate for heavy items |
Compatible Engines
This Cummins ISC8.3 Engine Cylinder Block 3965939 is used on the Cummins diesel engine. If your engine serial number differs, send it to us and we will cross-check the part number before you order.
Frequently Asked Questions
- What engine does the 3965939 fit?
- The Cummins 3965939 is designed for this Cummins diesel engine. If your engine serial number differs, send it to us and we will confirm compatibility before you order.
- Is the 3965939 OEM or aftermarket?
- The 3965939 is manufactured to OEM specifications and quality-checked before shipment, giving OEM-level reliability at a better price than dealer parts.
- What is the minimum order quantity for the 3965939?
- MOQ is 1 piece for the 3965939. Mixed orders with other parts are welcome.
- How long is the lead time and do you ship worldwide?
- Lead time is 7-15 working days after payment. We ship worldwide by express, air and sea freight with full export documentation.
- How do I get a price for the 3965939?
- Send the part number 3965939 and your required quantity through the contact form or WhatsApp, and our team replies with a quotation within 24 hours.
Other Cummins Cylinder Block Parts for the Same Engine Model
Customers who bought 3965939 also asked for these parts from the same Cummins range:
- Cummins ISB6.7 Engine Cylinder Block 4955412
- Cummins M11 Engine Cylinder Block 3803717
- Cummins 6BT Engine Cylinder Block 3903797
- Cummins 6LT8.9 Cylinder block 5293409 Diesel Engine Parts
How to Order
Send us the part number 3965939 together with your engine serial number or model. We confirm fitment, availability and price within 24 hours.
Checks before fitting a Cummins cylinder block
A Cummins block is only a sound investment if the casting and machining are verified. We check deck flatness, liner bore size and roundness, main bore alignment, and crack test the water jacket. Confirm your camshaft and crankshaft part numbers before ordering — blocks changed between engine builds and mixing generations causes bearing and timing failures.
Our Cummins blocks are crack tested and the deck is checked for flatness before export.






