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

Pistons, Rings, and Cylinder Liners – JCB Dieselmax, Perkins, CAT

Complete cylinder restoration. We offer repair kits (Piston + Pin + Rings + Liner) from KMP Brand, JCB Originals, and Perkins.

Dedicated parts for engines: JCB Dieselmax (444, Ecomax), Perkins (series 1004, 1104, 400, 1006), and CAT & Isuzu (3054, C4.4, 4HK1).

Cylinder Kits
Al-fin Pistons
KMP Brand & OEM
⚠️ Perkins or JCB? Careful! Pistons differ in size. Send a photo of the engine plate – we'll choose the guaranteed fit.
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PISTON & RINGS & LINERS

KMP Brand Piston Technology (Al-fin)

For turbocharged engines (e.g., in JCB 3CX Dieselmax, CAT 428), we offer pistons with an Al-fin insert. This is a cast-iron ring metallurgically bonded to the aluminum piston in the top ring groove. This prevents groove wear and piston cracking under high combustion temperatures.

Types of Cylinder Liners

Choosing the right liner determines the rebuild process:

  • Finished Liners (Honed): Factory honed to nominal size. Ready for piston installation after pressing into the block (standard in KMP Brand).
  • Unfinished Liners: Require boring and honing after pressing into the block (found in older engines).
  • Chromed Liners: Increased surface hardness for the toughest operating conditions.

💡 Assembling the crank assembly?

New pistons are half the battle. Check the crankshaft condition and select bearings:

Frequently Asked Questions (FAQ)

What does a "Single Cylinder Kit" contain?

A KMP Brand kit typically contains: 1x Piston, 1x Ring set, 1x Gudgeon pin, 2x Circlips, and 1x Cylinder liner.

Are oversize pistons available?

Yes. For parent bore engines (without liners), we stock oversize pistons (+0.50mm, +1.00mm) for bored blocks.