Piston body 3096680, full number 3096680-20, is the STD standard-size piston for Cummins K19, KTA19, KTA38 and KTA50 heavy-duty diesel engines. Nominal diameter is 158.756 mm with an overall height of 161.90 mm and a deep ω-type combustion chamber measuring 122.5 mm. Compression ratio is 13.8:1, optimised for turbocharged intercooled KTA engines, at about 7.72 kg per piston.
Specifications
| Full Part Number |
3096680-20 (STD standard size) |
| Nominal Piston Diameter |
158.756 mm |
| Overall Height |
161.90 mm |
| Single Net Weight |
~7.72 kg |
| Combustion Chamber |
Deep ω-type, chamber diameter 122.5 mm |
| Ring Groove Layout |
3 grooves: 2 compression rings + 1 oil control ring |
| Compression Ratio |
13.8:1, optimized for turbocharged intercooled KTA engines |
| Fit Engines |
Cummins K19, KTA19, KTA38, KTA50 heavy-duty diesel engines |
| Design Purpose |
Continuous heavy industrial operation, supports thousands-of-hours overhaul cycles |
Key Features
- STD standard size, full part number 3096680-20
- Nominal piston diameter 158.756 mm, overall height 161.90 mm
- Deep ω-type combustion chamber, 122.5 mm diameter
- Three ring grooves: two compression, one oil control
- 13.8:1 compression ratio for turbocharged intercooled KTA engines
- Approximately 7.72 kg per piston
Typical Applications
- Continuous heavy industrial operation
- Mining haul trucks
- Marine main engines
- High-output generator sets
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
