Filter by
Machine
Engine
Machine type
Perkins series
CAT series
Isuzu series
Outer bush diameter (mm)
Inner bush diameter (mm)
Bush height (mm)
Cylinder rod diameter
Cylinder barrel diameter
MM MM
Wear pad length (mm)
Wear pad width (mm)
Wear pad height (mm)
Wear pad diameter (mm)
Inner bearing diameter (mm)
Outer bearing diameter (mm)
Bearing height (mm
Pin pivot diameter
Pin pivot length
Diameter
Outer diameter
Inner diameter
Height
Rim size (inches)
Width (inches)
Width
Number of links
Pitch
Bucket width
cm cm
Length
Wheel diameter (inches)
Wheel width (inches)
Track width
Manufacturers
Filter

  • Premium quality radiators

    Premium quality radiators
Featured Categories
Information
Brands

Store information

Poland
HYDRO CZĘŚCI JAKUBIEC SPÓŁKA JAWNA
Kapitałowa 4
35-213 Rzeszów
Call us:
+48 17 229 37 05
NIP: 8133391713

Crankshafts and Seals – Perkins, CAT, JCB

The heart of the crank assembly. We offer brand new (forged) crankshafts, oil seals, and gears from KMP Brand, Perkins, and OEM.

Parts for engines: Perkins (series 1004, 1104, 4.236), CAT (3054, 3056, C3.3), and Isuzu/JCB (4HK1, Dieselmax).

Forged STD Shafts
OEM Oil Seals
KMP Brand
⚠️ Don't grind a cracked shaft! Buying a new standard shaft is safer. Send the engine number – we will select the shaft and bearings.
Verify Crankshaft

There are 192 products.

Sort by:
Relevance Newest First Name, A to Z Name, Z to A In stock first Random Best sales
Showing 1-25 of 192 item(s)
Back to top
CRANKSHAFT

KMP Brand Forged Shafts – Better than Regrinding

Regrinding an old shaft can be risky (micro-cracks, material fatigue). We offer brand new, forged crankshafts in standard size (STD). They are ready to install, balanced, and have hardened journals, ensuring factory durability in Turbo engines.

Crankshaft Oil Seals

Oil leaking from the gearbox or pulley is a common fault. We stock:

  • Rear seals (flywheel side): Often integrated with an aluminum housing (in newer Perkins engines).
  • Front seals (timing side): Made of Viton, resistant to high temperatures.
  • Wear Sleeves (Speedi-Sleeve): Allow you to save a shaft with a worn groove under the seal.

💡 Buying a new crankshaft?

You must replace the bearings with new STD ones. Check:

Frequently Asked Questions (FAQ)

Are KMP Brand shafts forged or cast?

Most KMP shafts for Perkins and CAT engines are Forged Steel, which ensures significantly higher fatigue strength than cheaper Cast Iron replacements.

Is the shaft sold with bearings?

Some kits (e.g., KMP Brand) may include bearings, but typically the shaft is sold "bare". Bearings must be selected separately in the correct size (usually STD for a new shaft).

Need a crankshaft gear?

Timing and oil pump gears are shrink-fitted. If yours was damaged during removal, we will select a new gear matching the tooth count.

Go to Contact Form