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![7W-2221 [RING]](https://deshpower.com.bd/wp-content/uploads/2026/05/7W-2221-500x378.jpg "7W-2221")
7W-2221 [RING]
The 7W-2221 is a 170 mm oil-regulating piston ring used in heavy-duty Caterpillar diesel and gas engines. It helps control engine oil on the cylinder wall and maintains proper sealing performance.
The 7W-2221 is a 170 mm oil-regulating piston ring used in heavy-duty Caterpillar diesel and gas engines. It helps control engine oil on the cylinder wall and maintains proper sealing performance.
Material:
Gray (flake) iron.
Common Applications:
Compatible with many CAT 3500 series engines, including:
- 3508
- 3512
- 3516
- G3508 / G3512 / G3516
- D11N Tractor
- 777B / 777C / 785 / 789 / 793 Trucks
- 994 Wheel Loader