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Piston, liner and ring combination
Treat the piston profile, liner dimensions and ring pack as a combination. A coordinated parts list helps avoid mixing components from different engine versions.
ENERJOINT MACHINERY
ENGINE OVERHAUL
PARTS
Right Parts. Reliable Supply.
Cylinder sets and rebuild components for excavator and generator engines.
Engine overhaul parts
Build the repair around the engine.
Pistons, cylinder liners, piston rings, pins and retainers form the core of the cylinder overhaul range. Model-specific sets bring these related wear parts into one parts list, with the contents selected for the engine version and repair scope.
Cylinder overhaul
The details that distinguish a cylinder set.
Pins and retainers
Include the piston-pin diameter, pin length and retaining arrangement in the cylinder set. These small parts should follow the same engine reference as the major components.
Sets for the repair scope
Plan quantities by cylinder count. Cylinder components can be listed alongside bearings, thrust washers and gasket requirements for a broader rebuild quotation.
Engine references in the range
Reference families shown from our product photo library. Kit contents and part numbers depend on the exact engine version.
4HK1
4TNV98
6D102
6D107
6HK1
V2403
Engine dimensions, from manufacturer data.
| Engine reference | Bore × stroke | Displacement |
|---|---|---|
| Isuzu 4HK1-XYBW02 | 115 × 125 mm | 5.2 L |
| Yanmar 4TNV98 | 98 × 110 mm | 3.319 L |
These are original-engine identification dimensions, not replacement-part dimensions or performance ratings. Piston, liner and ring sizes follow the specific part reference and repair grade.
How we work
A clearer path to the right part.
You do not need a perfect parts list to start. Send what you have; we will identify what still needs checking.
Only a photo or a worn-out label?
Start with a photo of the old part, the machine model or a nameplate. We will tell you which details are still needed.
Similar parts. Different configurations.
We check the reference and key details before confirming a match. If something is uncertain, we say so.
Send your list from anywhere.
A photo of your parts list is enough to get started. Send it by WhatsApp or email, we’ll review the items, clarify the details and prepare your quotation.
Clear specifications, practical options and reliable communication, from first inquiry to delivery.
Let’s get to work.
Contact our parts team. Send your part reference, model and quantity.
Photos and nameplates are welcome.
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Jinan, Shandong, China