Piston kit 3631241 is built around piston body 3096685 for Cummins K19, KTA19, K38, KTA38, K50 and QSK19 heavy-duty diesel engines. The kit supplies the piston body, wrist pin and two retaining circlips; the ring set 3803312 is ordered separately. Compression ratio is 13.9:1 in high-strength eutectic aluminium alloy with a heat-resistant crown coating, a nickel alloy insert in the top ring groove and an internal oil cooling gallery. Weight is 5.7 kg per piece.
Specifications
| Part No. |
3631241 |
| Built-in Piston Body PN |
3096685 |
| Kit Contents |
Piston body, wrist pin, 2 retaining circlips (excludes piston rings; ring set PN 3803312 sold separately) |
| Compression Ratio |
Standard 13.9:1 |
| Material |
High-strength eutectic aluminum alloy, heat-resistant wear coating on crown, nickel alloy insert for top ring groove, internal oil cooling gallery |
| Piston Diameter |
185 mm (standard K-series bore) |
| Compatible Engines |
Cummins K19, KTA19, K38, KTA38, K50, QSK19 heavy-duty diesel engines |
| Single Net Weight |
5.7 kg / pc |
Key Features
- Contains piston body 3096685, wrist pin and two retaining circlips
- Piston rings not included — ring set 3803312 sold separately
- 13.9:1 standard compression ratio
- High-strength eutectic aluminium alloy
- Heat-resistant wear coating on the crown
- Nickel alloy insert for the top ring groove
- Internal oil cooling gallery; 5.7 kg per piece
Typical Applications
- Mining haul trucks
- Generator sets
- Marine power installations
- Heavy construction machinery
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
