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Crankcase for engine Cummins 3.9 3939408

Cummins 3.9 engine block (3939408) – durable cast iron component for industrial and construction engines, ensuring reliability and long life.

  • Condition: used
  • SKU: 70784
Ocena 4,9

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Product description

Engine Block Cummins 3.9 – 3939408

Description

The Cummins 3.9 engine block with part number 3939408 is a crucial structural element of the engine, ensuring stability, sealing, and proper alignment of all engine components. Made of high-strength cast iron, it provides resistance to extreme thermal and mechanical loads. Designed for durability, vibration reduction, and optimal performance under various operating conditions.

Technical Data

  • Manufacturer: Cummins
  • Part number: 3939408
  • Material: high-strength cast iron
  • Weight: approx. 90–110 kg
  • Engine displacement: 3.9 l
  • Configuration: inline 4-cylinder
  • Cooling: liquid
  • Finish: factory-machined seats, surfaces, and oil channels

Application

The Cummins 3.9 engine block is widely used in construction, agricultural, industrial machines, and commercial vehicles. It is a replacement part for overhauls and repairs, fully compatible with original Cummins components. Commonly applied in excavators, loaders, forklifts, and road machinery, where reliability and long-term performance under heavy load are essential.

Properties

  • High resistance to wear and mechanical damage
  • Stable design ensuring precise alignment of pistons and crankshaft
  • Resistance to high temperatures and combustion pressure
  • Compatibility with genuine Cummins parts
  • Long service life and reliability in demanding working conditions

Specification

Specification Value
name Crankcase for engine
mark Cummins
type 3.9
part number 3939408
condition used
material high-strength cast iron
weight 90-110 kg
displacement 3.9 l
configuration inline 4-cylinder
cooling liquid

Reference numbers

List of reviews:

Jeffrey

2025-09-21

Mateusz

2025-09-16

Mark

2025-09-12

Agnieszka

2025-09-09

Benjamin

2025-09-07

Paweł

2025-09-06

Patryk

2025-04-20

Write a review.

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