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SKU:
NLT2S01552
Ships for free in 2–4 business days.
Cylinder Head for Cummins 4BT 3.9L Diesel – 3802339 / 3930915
$1,205.39
In Stock
$1,205.39
Sale price
$1,205.39
Regular price
This replacement cylinder head is intended for compatible Cummins 4BT 3.9L four-cylinder diesel engines. It is advertised with reference numbers including #3802339 and #3930915.
Estimated delivery between
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Cummins 4BT 3.9L four-cylinder diesel — matching cylinder-head casting and engine CPL
Product Overview
A cracked or warped cylinder head can lead to coolant loss, compression problems or combustion gas entering the cooling system. Cummins 4BT heads vary by generation and component arrangement, so casting, injector style and valve details must be checked before transferring components.
Key Features & Performance
- Package: One cylinder head; verify assembled/bare configuration
- Application: Cummins 4BT 3.9L four-cylinder diesel — matching cylinder-head casting and engine CPL
- Important fitment detail: These numbers appear in the supplier title but have not all been independently established as interchangeable
Replaces / Cross-References
- 3802339
- 3930915
- 3967430
- 3927330
- 3920394
What Is Included
One cylinder head; verify assembled/bare configuration.
Common Reasons for Replacement
- Cracked head
- overheating damage
- compression loss
- head gasket repair with damaged mating surface
Fitment Notes
These numbers appear in the supplier title but have not all been independently established as interchangeable. Match casting, engine CPL and valve/injector configuration. Check whether head is bare or assembled.
Frequently Asked Questions
Is this an OEM part? This listing describes a replacement or upgrade component, not a genuine manufacturer-branded part unless explicitly stated otherwise. Brand and part numbers identify the intended application.
How do I confirm fitment? Compare the original component, part number and the configuration notes above. Use the equipment VIN, engine serial number or manufacturer parts diagram when necessary.
Part Summary
keywords: Cylinder Head, 3802339, 3930915, 3967430, 3927330, 3920394, Cummins 4BT 3.9L four-cylinder diesel — matching cylinder-head casting and engine CPL
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.