3017349 Genuine CCEC Piston for Cummins NT855 NTA855 NH855 Engines

Piston for Cummins NT855, NTA855 and NH855 engines. 139.7 mm bore, 14.5:1 compression ratio, approx. 3.2 kg.

SKU: 3017349

Description Additional information

Piston 3017349, commonly carrying the -20 suffix, fits Cummins NT855, NTA855 and NH855 engines. Bore diameter is 139.7 mm with a compression height of 101.62 mm and overall height of 159.02 mm. The combustion chamber measures 106.37 mm across for a 14.5:1 compression ratio, and the wrist pin bore is 50.77 × 120 mm. Each piston weighs about 3.2 kg.

Specifications

Part Number	3017349 (common suffix -20)
Engine Compatibility	Cummins NT855 / NTA855 / NH855
Bore Diameter	139.7 mm (5.5")
Compression Height	101.62 mm
Total Height	159.02 mm
Wrist Pin Dimensions	50.77 × 120 mm
Combustion Chamber Diameter	106.37 mm
Compression Ratio	14.5:1
Material	Reinforced alloy cast iron / aluminum alloy (OEM upgraded)
Weight	Approx. 3.2 kg
Standard	Genuine CCEC Quality

Key Features

139.7 mm (5.5 in) bore diameter
Compression height 101.62 mm, total height 159.02 mm
106.37 mm combustion chamber, 14.5:1 compression ratio
Wrist pin dimensions 50.77 × 120 mm
Approximately 3.2 kg per piston

Typical Applications

Generator sets
Construction machinery
Marine propulsion engines
Industrial power units

Ordering from Sino Bus Parts

Wholesale pricing; bulk orders welcome
Global shipping
Fitment confirmed against your engine serial or CPL before dispatch
Contact us on WhatsApp for a quotation

Part Number	3017349
Fitment	Cummins NT855 NTA855 NH855 Engines
Product Type	CCEC Piston Body
Material	Single-Ni
Quality Standard	Genuine CCEC
MOQ	Bulk Orders Accepted
Lead Time	3-15 Days

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