Parts for 250XS (3.0L DFI) 2-Stroke DFI Mercury Optimax Outboard Motor Gear Housing (Prop-torquemaster / Fleetmaster-heavy Duty)
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #- | 840470T27 | G CASE 1.62RH (1.62:1-Long-Torque Master) (1 required per assembly) — Replaces: 840470T17 |
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1689-840470T27 - Gear Housing Assembly [ More info ] Unavailable |
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| #- | 840470T29 | G CASE 1.75 LONG (1.75:1-Long-Torque Master) (1 required per assembly) — Replaces: 840470T16 |
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1689-840470T29 - Gear Housing Assembly [ More info ] Unavailable |
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1600-8M0236154 - GC TM L 1.75 [ More info ] Unavailable |
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| #- | 840470T30 | G CASE 1.75 XL (1.75:1-X-Long-Torque Master) (1 required per assembly) — Replaces: 840470T24 |
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1689-840470T30 - Gear Housing Assembly [ More info ] Unavailable |
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1600-8M0236165 - GC TM XL 1.75 [ More info ] Unavailable |
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| #- | 840470T31 | G CASE 1.87:1 LG (1.87:1-Long-Torque Master) (1 required per assembly) — Replaces: 840470T18 |
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1689-840470T31 - Gearcase 1.87:1 Lg [ More info ] Unavailable |
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| #- | 840470T33 | G CASE 2:1 LONG (2.0:1-Long-Torque Master) (1 required per assembly) — Replaces: 840470T19 |
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1689-840470T33 - Gear Housing Assembly [ More info ] Unavailable |
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| #- | 8M0131313 | GEAR HOUSING (1.75:1-Long-Fleet Master Heavy Duty) (1 required per assembly) — Replaces: 840470T25, 842004T02 |
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16008M0131313 - Gear Housing [ More info ] Unavailable |
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| #- | 842004T26 | GC DSI S 1.75 XL (1.75:1-X-Long-Fleet Master Heavy Duty) (1 required per assembly) — Replaces: 840470T20, 842004T04 |
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1689842004T26 - GC DSI S 1.75 XL [ More info ] Unavailable |
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1600-8M0236198 - GC DSI XL 1.75 [ More info ] Unavailable |
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| #- | 842004T28 | GC ASSY. 1.75 XXL (1.75:1-XX-Long-Fleet Master Heavy Duty (1 required per assembly) — Replaces: 840470T22, 842004T06 |
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1689842004T28 - GC ASSY. 1.75 XXL [ More info ] Unavailable |
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| #- | 816575A6 | SEAL KIT-G/H (1 required per assembly) |
| #1 | 840470T5 | GEAR HOUSING ASSEMBLY BASIC (1 required per assembly) |
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1689-840470T 5 - Gear Housing Assembly [ More info ] Unavailable |
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| #2 | 823903 | SHIFT CRANK (1 required per assembly) |
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823903 - Crank [ More info ] Unavailable |
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8M0226861 - CRANK-SHIFTER [ More info ] Unavailable |
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| #3 | 19755T7 | SPOOL ASSEMBLY (1 required per assembly) |
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19755T 7 - Spool Assembly [ More info ] Unavailable |
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| #4 | NSS | NOT SOLD SEPARATE SPOOL (1 required per assembly) |
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NSS - NOT SOLD SEPARATE [ More info ] Unavailable |
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| #5 | NSS | NOT SOLD SEPARATE SLEEVE (1 required per assembly) |
| #6 | NSS | NOT SOLD SEPARATE COTTER PIN (1 required per assembly) |
| #7 | 47397A1 | SHIM SET (AR required per assembly) |
| #8 | 878087A6 | GEAR SET FORWARD/PINION (1.62:1 Torque Master) (1 required per assembly) |
| #8 | 859321T04 | GEAR SET FORWARD/PINION (1.75:1 Fleet Master Heavy Duty (1 required per assembly) — Replaces: 828168T3 |
| #8 | 878611T03 | GEAR SET FORWARD/PINION (1.87:1 Torque Master) (1 required per assembly) |
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43-878611T03 - Forward Gear Set [ More info ] Unavailable |
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| #8 | 878617A05 | GEAR SET FORWARD/PINION (2.0:1 Torque Master) (1 required per assembly) |
| #9 | 828437A2 | BEARING ASSEMBLY (1 required per assembly) |
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31-828437A 2 - Tapered Roller Bearing Assembly [ More info ] |
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| #10 | NSS | NOT SOLD SEPARATE CUP (1 required per assembly) |
| #11 | 30895T | BEARING NEEDLE (1 required per assembly) |
| #12 | 856823 | RING RETAINING (1 required per assembly) |
| #13 | 848878T | CLUTCH (1 required per assembly) |
| #14 | 78909 | PIN DETENT (2 required per assembly) |
| #15 | 848838 | PIN CROSS (1 required per assembly) |
| #16 | 78962 | SPRING (2 required per assembly) |
| #17 | 8M0051199 | PROPSHAFT RH (Torque Master) (1 required per assembly) — Replaces: 840453A03, 840453 |
| #17 | 841978 | PROPELLER SHAFT (Fleet Master Heavy Duty) (1 required per assembly) — Replaces: 844186 |
| #18 | 848880T1 | GEAR REVERSE (1.62:1 Torque Master) (1 required per assembly) |
| #18 | 8M0192235 | GEAR-REVERSE (1.75:1 All) (1 required per assembly) — Replaces: 848881A1 |
| #18 | 844147T01 | GEAR REVERSE (1.87:1 Torque Master) (1 required per assembly) |
| #18 | 844148T01 | GEAR REVERSE (2.0:1 Torque Master) (1 required per assembly) |
| #19 | 8241081 | THRUST SPACER (1 required per assembly) |
| #20 | 88957T | BEARING BALL (1 required per assembly) |
| #21 | 681001 | RING THRUST (1 required per assembly) |
| #22 | 31534 | O-RING (1 required per assembly) |
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25-31534 - O-Ring, Bearing Carrier [ More info ] Unavailable |
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25-8M0214920 - Bell Housing O-Ring Note: Priced Individually [ More info ] |
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| #23 | 848840A1 | CARRIER ASSEMBLY BEARING (1 required per assembly) — Replaces: 848840T1 |
| #24 | 817072 | BEARING ROLLER (1 required per assembly) |
| #25 | 817071 | RING SNAP (1 required per assembly) |
| #26 | 815565 | SEAL OIL (2 required per assembly) |
| #27 | 30281 | KEY (1 required per assembly) |
| #28 | 8M0058389 | SCREW KIT DRAIN (1 required per assembly) — Replaces: 67892A05, 67892A06 |
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22-8M0058389 - Screw Kit - Priced Individually [ More info ] |
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| #29 | 191833 | SEAL (1 required per assembly) |
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12-19183 3 - Seal -Blue - Priced Individually [ More info ] Unavailable |
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12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] |
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| #30 | 79447 | TAB WASHER (1 required per assembly) |
| #31 | 8M2000347 | RETAINER (1 required per assembly) — Replaces: 79448, 8M2011027 |
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8M2000347 - Retainer [ More info ] Unavailable |
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| #32 | 85344 | WASHER (.750 INSIDE DIAMETER) (1 required per assembly) |
| #33 | 52707Q1 | PROP NUT KIT (.750-16) (1 required per assembly) |
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11-52707Q 1 - Prop Nut Kit - Priced Individually [ More info ] |
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11-52707T 1 - Prop Nut Kit - Priced Individually [ More info ] |
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11-00122 - Prop Nut Kit [ More info ]
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| #34 | 66024 | SCREW @2 (1 required per assembly) |
| #35 | 76214Q5 | ANODE(ALUM) @2 (1 required per assembly) — Replaces: 762145 |
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97-76214Q 5 - Anode, Outboard & MCM Aluminum - Priced Individually [ More info ] Unavailable |
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18-6244 - Anode, Magnesium, Plate Only - No Fin, 76214 [ More info ] |
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18-6016A - Anode, Aluminum, Plate Only - No Fin [ More info ] |
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18-6016 - Anodic Plate, Zinc, Plate Only - No Fin 76214 [ More info ] |
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97-8M0059339 - Anode, Aluminum, BULK-10PC 76214A 6 QS [ More info ]
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| #36 | 8480611 | COVER-PROPSHAFT (1 required per assembly) |
| #37 | 85344 | WASHER (1 required per assembly) |






