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Main bearings KMP 4BT3.9/6BT5.9 4955857

KMP 4955857 main bearings for Cummins 4BT3.9 and 6BT5.9 engines. Durable, wear-resistant, precision-fit parts ensuring reliable crankshaft performance.

  • Condition: new
  • SKU: 35464
Ocena 4,7

34.50 EURNet

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Product description

KMP Main Bearings 4BT3.9/6BT5.9 – reliable Cummins engine parts

Product description

KMP main bearings for 4BT3.9 and 6BT5.9 engines are high-quality components designed for crankshaft overhaul and repair. Made of durable bearing alloys, they provide excellent resistance to wear and heavy loads generated during diesel engine operation. With precise fit, they ensure proper crankshaft alignment, reducing the risk of damage and extending the service life of the power unit.

Technical data

  • Part number: 4955857
  • Compatibility: Cummins 4BT3.9, 6BT5.9 engines
  • Material: high-strength bearing alloy
  • Type: main bearings (STD)
  • Application: engine crankshaft

Application

KMP main bearings are used in Cummins B series engines commonly installed in construction machinery, trucks, buses, and power generators. They are a key part of the crank-piston assembly, ensuring proper crankshaft support and maintaining the oil film to reduce friction and wear.

Features and benefits

  • High durability – alloys resistant to high pressure and temperature.
  • Precision manufacturing – perfect fit for the crankshaft and block seats.
  • Crankshaft protection – reduces seizure risk and extends engine life.
  • Easy installation – standard size replacement, simple to mount during repair.
  • Compatibility – fully matches Cummins 4BT3.9 and 6BT5.9 engines.
By choosing KMP main bearings, you invest in a proven solution that ensures long-lasting and trouble-free operation of your engine under demanding working conditions.

Specification

Specification Value
name Main bearings
mark KMP
type STD
part number 4955857
condition new
compatibility Cummins 4BT3.9 / 6BT5.9
material bearing alloy
application crankshaft

Reference numbers

List of reviews:

Benjamin

2025-09-19

The product arrived as described and fits well. It seems to function properly, but I have not noticed any significant improvements.
Wiktor

2025-09-19

Części są zgodne z opisem. Używam ich od kilku tygodni i jak na razie działają bez zarzutu.
Julian

2025-09-19

Zamówienie dotarło na czas. Panewki pasują do maszyny, jednak nie zauważyłem znaczącej różnicy w wydajności.
Barbara

2025-09-19

Produkt spełnia swoje podstawowe funkcje. Montaż był prosty, a jakość wykonania wydaje się być na odpowiednim poziomie.
Ewa

2025-08-10

Produkt spełnia swoje podstawowe funkcje. Montaż był prosty, a jakość wykonania wydaje się być na odpowiednim poziomie.
Tomasz

2025-06-29

Zamówienie zrealizowane na czas. Panewki są zgodne z opisem.
Dominik

2025-05-06

Dobrej jakości część, która została zainstalowana bez problemów.
Amelia

2025-05-02

The product fits well and functions as expected. No issues encountered.
Anna

2025-04-24

Produkt spełnia oczekiwania. Pasuje do maszyny i działa poprawnie.

Write a review.

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