This piston ring kit includes compression rings and oil control rings, used to seal combustion chamber, control oil consumption, transfer heat from piston to cylinder liner. Widely used for construction machinery, generator set, marine engine and heavy-duty truck.

Part numbers: 2881745, 3103157, 3103158, 3103159, 3631248, 3695509, 3801056, 3802421, 3802429, 3803977, 4058969, 4089500, 4089810, 4089811, 4295801, 4309114, 4309441, 4316887, 4352282, 4376553

Fits: Cummins series diesel engine
Position: Engine piston assembly

What you are ordering
Price is per piston ring set. All part numbers are separate variants, please select the correct PN from variant options. These piston ring sets are not interchangeable. Different part numbers have different diameter, ring thickness and surface treatment. Wrong selection will cause high oil consumption, low power and blow-by.

Specifications
Material: Cast iron / alloy steel
Surface treatment: Chrome plating, molybdenum spraying
Package: Neutral packing or branded packing
Set composition: Top compression ring, second compression ring, oil control ring

When to replace
Replace the piston ring set when excessive oil consumption, blow-by gas, power drop, poor compression, after cylinder liner scratch or piston damage.

Fitting notes
Strictly confirm engine model and part number before ordering. Install ring gap stagger correctly. Follow Cummins service manual for installation clearance and inspection after assembly. If you are not sure which PN matches your engine, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.