The Parts Include :

1* Exhaust Bellow

2 * Clamps

2 * Clips

The Bellow With Ridge Fits:

Mercruiser 120/140 1978-1982

Mercruiser 165 1978-1981

Mercruiser 260 1978-1982

Mercruiser 470 1978-1982

Mercruiser 485 1980-1982

Mercruiser 898/228 1978-1982

Mercruiser Alpha One Gen I 1983-1990

Mercruiser Alpha One Gen II 1991- Current

Mercruiser Bravo I Most All

Mercruiser Bravo II Most All

Mercruiser Bravo III Most All

B1t10