Mercruiser Spares Exhaust bellows Mercruiser Exhaust Bellows GLM#89070 70981A3 120 TO 898 3″ Centre Mount to 4″ Elbow GLM#89130 32-14358T 185 TO 898 4.3 TO 7.4 LT Lower 4″ GLM#89100 18654A1 120 TO BRAVO III Concerntina GLM#89150 78458A1 R/MR/ALPHA ONE/BRAVO I/II/III transom PL to B/Hsg Exhaust Protector Valve GLM#89240 34765A1 190 TO 325 3″ EXH VALVE GLM#89250 12644A1 PROTECTOR VALVE 4″