Facebook Twitter Linkedin Whatsapp Instagram Pinterest
Side profile of a new aftermarket Cummins 6BT 5.9L cylinder block by Ruich Value, showing lifter bores and precision-machined accessory mounting points. A heavy-duty replacement for OEM part 3928797.
Bottom view of a Ruich Value aftermarket Cummins 6BT cylinder block, showing all seven heavy-duty main bearing caps and the precision-machined oil pan rail for a leak-proof seal.
Top deck view of a new Ruich Value aftermarket Cummins 6BT cylinder block, highlighting the six precision-honed cylinder bores and perfectly flat head gasket surface for a superior seal.
Rear view of a new Ruich Value aftermarket Cummins 6BT block, showing the precision-machined flywheel housing surface and rear main seal bore for perfect drivetrain alignment.
Front view of a new Ruich Value aftermarket Cummins 6BT cylinder block, highlighting the precision-machined surface for the timing gear housing and the camshaft bore.
Front profile of a Ruich Value aftermarket Cummins 6BT bare block, showing the camshaft bore and the precision-machined mounting points for the timing cover.

Cummins 6BT Cylinder Block | Aftermarket 3928797 Replacement

Categories , Tags , , , , , , , Brand:
Send us a Inquiry
Share:

Product Categories:

Product Tags:

, , , , , , ,

Send us a message


Cummins 6BT Cylinder Block (5.9L)

The Ruich Value aftermarket Cummins 6BT cylinder block is the cornerstone for rebuilding the legendary 5.9L B-Series engine. As a direct replacement for OEM numbers including 3928797, 3903797, and 3935943, this block is engineered with precision to restore original functionality. We leverage Cummins’ renowned heritage of durability by using high-grade cast iron that meets stringent quality controls, ensuring it can withstand the high-stress demands of both automotive and industrial applications.Our commitment to precision engineering guarantees that every block provides a perfect fit for all associated components, simplifying the assembly process for engine rebuilders and fleet maintenance managers. By choosing this cylinder block, you are investing in a component that upholds the performance and long-service life that has made the Cummins 6BT a global benchmark for diesel power.

Specifications & Features

Attribute Specification
OEM Numbers 3928797, 3903797, 3935943 (Typical Reference)
Engine Model Compatibility Cummins 6BT, 6BTA, 5.9L B-Series (12-Valve)
Material High-Grade Cast Iron
Weight Approx. 140 kg (Bare Block)
Bore x Stroke 102 mm x 120 mm
Cylinder Count 6 (In-line)
Key Features
  • Engineered for 12-valve configurations.
  • Robust construction for high-stress applications.
  • Precision-machined for direct fitment and reliability.

Compatible Engine Models and Applications

Engine Model Application Field Typical Equipment Brands & Models
Cummins 6BT (5.9L) Automotive Dodge Ram 2500/3500,

Ford & Freightliner Trucks,

School Buses
Cummins 6BTA (5.9L) Industrial & Construction Case IH Tractors,

Backhoe Loaders,

Generators, Step Vans
Marine 6BT/6BTA Marine Recreational Boats,

Commercial Fishing Vessels,

Auxiliary Power

Why Choose Ruich Value?

  • Heritage of Reliability: Our blocks honor Cummins’ legacy with materials that ensure long-term durability.
  • Performance Assured: Precision engineering guarantees OEM-level performance and seamless integration.
  • Strategic Sourcing: Simplify your supply chain with our Cummins 6BT cylinder block wholesale program.
  • B2B Optimized: We offer competitive wholesale pricing to boost your profitability.
  • Expert Support: Our technical team ensures you get the right part for your application, every time.
  • Quality Controlled: Every block is inspected to meet strict quality standards before shipment.

Cummins Cylinder Block Range

Ruich Value supplies a dedicated range of Cummins cylinder blocks, including new aftermarket and remanufactured replacements. Our coverage includes popular engine families such as the 6BT/6BTA, 4BT, ISB, ISX, and NT855 series. For a complete catalog of our Cummins cylinder blocks, please contact our sales team.

ModelModelModelModel
4B/4BTISL/QSL9.3/6LT-9.3ISGISX/QSX15
6B/6BT/6D102QSC8.3ISLEISC
6C/6CT
(single thermostat)
X15K19ISDE4.5
6CT
(double thermostat)		NT855ISF2.8ISDE6.7
6L/6LTISM11ISF3.8ISB6 E3
ISB4.5ISB6.7QSB3.3

Contact Us for More Details

For quotes, bulk orders, and technical questions about the Cummins 6BT cylinder block, please contact us.

Chat via WhatsApp
Send an Email

 

Related products

Contact Us

For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business