Piston suitable for JCB 2CX 3CX 4CX Loaders - AB engine
GX-AFTER

Piston suitable for JCB 2CX 3CX 4CX Loaders - AB engine

Catalog number:SKX051165A Nr OEM:02/202245 Manufacturer:GX-AFTER
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ENGINE PISTON (PERKINS AB TURBO) SUITABLE FOR JCB 3CX, 4CX - 02/202245

Technical Specification and Compatibility

A precision-manufactured engine piston, a key component in repair kits for Perkins AB (Turbo version) engines. This is the heart of the power unit, responsible for transferring energy from the combusted air-fuel mixture via the connecting rod to the crankshaft. Made from a high-grade aluminum alloy, it ensures optimal thermal expansion and durability. The piston crown (combustion bowl) shape and pin dimensions are precisely matched to the requirements of a turbocharged engine.

Part number: 02/202245
Nominal Bore Size (mm): 100
Piston Length (mm): 108.1
Piston Compression Height (mm): 70
Piston Bowl Depth (mm): 19.5
Piston Bowl Diameter (mm): 57
Piston Pin Diameter (mm): 38.1
No. of Rings: 3
Weight (kg): 1.832

GX-AFTER is the smart choice for your machine. We provide high-class replacement parts that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.

Essential for Engine Overhaul

  • › Piston ring set (for 3 rings)
  • › Piston pin (38.1 mm) and clips (circlips)
  • › Cylinder liner (100 mm bore)
  • › Connecting rod bearings

Application in machines

Brand Type / Series / Model
JCB Backhoe Loaders: 3CX, 4CX
Telehandlers (Loadall)
Wheel Loaders
Agricultural Tractors: FASTRAC
JS Excavators
Dumpers

The list above is for reference. Fitment is dependent on the Perkins AB (Turbo, 100mm) engine model.

⚠️ Installation Warning

An engine overhaul is a complex process. Piston installation must be done in sterile conditions. Any contamination (dirt, metal shavings) entering the cylinder will immediately score the liner and destroy the engine. Always check piston ring end gaps and piston installation direction.

Part's Role in the Machine and Failure Diagnostics

The piston hermetically seals the cylinder (with piston rings) and transfers the immense force of combustion to the connecting rod. It is one of the most stressed components in the engine. Its failure necessitates a major overhaul.

  • › Loss of compression and hard starting.
  • › Increased oil consumption ("oil burning").
  • › Blue smoke from the exhaust.
  • › Loss of engine power and rough running.
  • › Metallic "knocking" from the engine (cracked piston or worn pin).

📞 Can't find the part you're looking for?

No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!

🔧 Expert's Guide: Key Installation Tips

  1. Replace as a set: Pistons should always be replaced as a complete set for all cylinders (together with rings, pins, and bearings) to ensure balanced weight, compression, and prevent future failures.
  2. Absolute cleanliness: Before installation, the cylinder and all components must be perfectly clean. Use assembly lube on rings and pin. The smallest piece of dirt acts like sandpaper.
  3. Installation direction: The piston has a mark (e.g., an arrow or "FRONT") indicating its correct orientation towards the front of the engine. Installing it backward will cause failure.
  4. Cylinder verification: Installing a new piston (even nominal 100mm) in a worn ("oval") cylinder is pointless. The cylinder must be verified, honed, or re-linered.

Frequently Asked Questions (FAQ)

1. What's the difference between this AB (Turbo) piston and the AA (NA) piston?

They differ in key dimensions. This piston (AB) has a 38.1 mm pin diameter and a 70 mm compression height. The AA engine piston (e.g., 02/200904) has a 34.925 mm pin and 69.9 mm compression height. The combustion bowls also differ (57 mm vs 55.3 mm). They are absolutely not interchangeable.

2. How do I know if I need a nominal or oversize piston?

This piston is a nominal size (100 mm). Before purchasing, a mechanic must measure the cylinder bore with a bore gauge. If the cylinder is worn but within tolerance, it can be honed for this piston. If the wear is too great, the cylinder must be "bored" (re-bored) and an oversize piston (e.g., +0.50 mm) must be used.

3. What is compression height (70 mm)?

This is one of the most critical dimensions of a piston. It defines the distance from the center axis of the piston pin hole to the crown (top surface) of the piston. Maintaining this dimension is crucial for achieving the correct compression ratio in the cylinder.

Question mark

Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.

SKX051165A
02/202245
2.04 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
ARTICULATED / DUMP TRUCK
BACKHOE LOADER
EXCAVATOR
FASTRAC
TELESCOPIC HANDLER
WHEELED LOADER
OEM NUMBERS
02/202245
ENGINE
PERKINS

Specific References

MPN
02/202245
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Piston suitable for JCB 2CX 3CX 4CX Loaders - AB engine

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Manufacturer

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57a
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100

Responsible person

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57A
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100
gross price

220.79 zł

net price
179,50 zł
Available in large quantity Temporarily unavailable
179,50 zł
net price

220.79 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 18 points, it gives you 7.20 zł
  • Lowest price from 30 days before the discount: 220.79 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    ARTICULATED / DUMP TRUCK
    BACKHOE LOADER
    EXCAVATOR
    FASTRAC
    TELESCOPIC HANDLER
    WHEELED LOADER
    Show more
    OEM NUMBERS
    02/202245
    ENGINE
    PERKINS

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    WE OFFER PRODUCTS OF THE BEST BRANDS

    SERWIS KOP Sp. z o.o. Sp.k.
    ul. Podkarpacka 57A, 35-082 Rzeszów
    NIP: 813-352-97-49 REGON: 180286726

    Opening hours
    Telephone support - Monday - Friday (8:00 AM – 5:00 PM)
    Order pick-up - Monday - Friday (8:00 AM – 4:30 PM)

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