3" Exhaust Flapper w/Clamps (GLM) - For Mercruiser/OMC & Volvo
OEM: 34765A1
Sierra: 18-4456
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Exhaust Hose (GLM) - For OMC & Volvo-upper 4.3 in 1991, 5.0-5.8 Ford in 1991, 7.5 (460) in 1988-1989, 5.7LE Models in
1990-1991, all 1990-1991 Cone Clutch. Upper Hose.
OEM: 3852696
Sierra: 18-2779
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4" Exhaust Flapper Valve w/Clamps (GLM) - For Mercruiser/OMC & Volvo
OEM # 12644A1
Sierra: 18-4457
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