AQ151A; AQ151B; AQ151C Cooling System Oil Cooler: 856271 Parts on group Oil Cooler: 856271: Pos. Part No Qty Parts name Comments 1. 856271 [1] Oil cooler 1A. 925255 [1] O-ring 2. 3. 824514 [1] Insert 4. 925092 [2] O-ring 5. 831044 [1] End cover 6. 831045 [1] End cover 7. 824522 [1] Centre bolt 8. 955983 [1] O-ring 9. 966871 [1] Shut-off cock Parts catalog : Oil Cooler: 834642 Sea Water Pump Heat Exchanger and Water Filter with Installation Components: C AQ151C Heat Exchanger and Water Filter with Installation Components: B AQ151B Heat Exchanger and Water Filter with Installation Components: A AQ151A Cooling System, Induction- and Exhaust Manifold: C AQ151C Induction- and Exhaust Manifold: A AQ151A Induction- and Exhaust Manifold: B AQ151B Induction- and Exhaust Manifold: C AQ151C