MD21B; AQD21B Miscellaneous Equipment Water Cooled Exhaustline Parts on group Water Cooled Exhaustline: Pos. Part No Qty Parts name Comments 1. 827873 [1] Hull fitting 2. 827876 [1] Nut 3. 828465 [1] Exhaust hose 4. 961673 [2] Hose clamp 5. 829315 [1] Grommet MD21A, MD21B for separate water outlet 6. 836879 [1] Nut 7. 961668 [2] Hose clamp 8. 944386 [1] Rubber hose 9. See group 2A Parts catalog : Water-cooled Exhaust Riser Separate Exhaust Outlet and Water Intake: MD21 Separate Exhaust Outlet and Water Intake: A Cooling Water Intake: 841723 Cooling Water Intake: 828244 Electrical Oil Bilge Pump Water Cooled Exhaust Silencer with Installation Components Water Cooled Exhaust Silencer with Installation Components Connecting Components Fuel Filter - Fuel Tank Tank Meter Kit for Fuel and Drinking Water: 834399 Tank Meter Kit for Fuel and Drinking Water: 834400 Control for Side Mounting: A