Velvet Drive 71C and 72C Marine Transmission Assembly (Current Production)
| To Visit the Online Store Select This Link Transmission Pricing
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| Ref # | Part # | Description | Qty |
| 10-17-000-(See Note 1) | TRANSMISSION ASSEMBLY (MODEL 71C) | ||
| 10-18-000-(See Note 1) | TRANSMISSION ASSEMBLY (MODEL 72C) | ||
| 1 | 4775L | OUTPUT SHAFT NUT | 1 |
| 2 | 4547BA | COUPLING (10-17 ONL Y) | 1 |
| 2A | 4547AY | COUPLING (10-18 ONLY) | 1 |
| 3 | 71-7 | BEARING RETAINER (10-17 ONLY) | 1 |
| 3A | 72-7 | BEARING RETAINER (10-18 ONLY) | 1 |
| 4 | 179859 | HEX HEAD BOLT (7/16-14 X 1-1/4) | 6 |
| 5 | 103322 | LOCKWASHER (7/16) (10-17 ONL Y) | 6 |
| 6 | 71C-110 | OIL SEAL | 1 |
| 7 | 10-00-130-017 | BEARING (1 Pkg) | 1 |
| 7A | 10-00-130-018 | BEARING (10-17) | 1 |
| 7B | B309AGS | BEARING (10-18) | 1 |
| 8 | 71-147 | BEARING RETAINER GASKET (10-17 ONLY) | 1 |
| 8A | 72-147 | BEARING RETAINER GASKET (10-18 ONLY) | 1 |
| 9 | * * | ADAPTER | 1 |
| 9A | * * | ADAPTER | 1 |
| 9B | * * | ADAPTER | 1 |
| 10 | * * | LOCK BOLT (7/16-14 X 7/8) | 6 |
| 11 | * * | LOCKWASHER (7/16) (10-18 ONLY) | 6 |
| 11A | * * | LOCKWASHER (7/16) (10-17 ONLY) | 6 |
| 12 | * * | HEX HEAD BOLT (7/16-14 X 1-3/4) | 2 |
| 13 | * * | LOCKWASHER (7/16) | 2 |
| 14 | * * | ADAPTER GASKET | 1 |
| 15 | * * | BEARING | 1 |
| 16 | * * | RETAINING RING | 1 |
| 17 | 10-17-559-001 | DIPSTICK | 1 |
| 17A | 10-13-559-001 | DIPSTICK TUBE | 1 |
| 18 | 20-01-034-003 | DIPSTICK TUBE | 1 |
| 19 | 71-79B | SHIFT LEVER | 1 |
| 20 | 9418892 | HEX NUT (5/16-24) | 1 |
| 21 | 108579 | LOCKWASHER (5/16) | 1 |
| 22 | 103340 | FLATWASHER (5/16) | 1 |
| 23 | 453632 | STEEL BALL (5/16) | 1 |
| 24 | 71-42 | POPPET SPRING | 1 |
| 25 | 10-00-640-004 | NEUTRAL SWITCH ASSEMBLY | 1 |
| 26 | NO NUMBER | NEUTRAL SWITCH (NSS) | 1 |
| 27 | 10-00-141-046 | O-RING | 1 |
| 28 | 10-16-039-001 | VALVE COVER | 1 |
| 29 | 179796 | HEX HEAD BOLT (1/4-20 X 1/2) | 3 |
| 30 | 103319 | LOCKWASHER (1/4) | 3 |
| 31 | 10-16-099-001 | SWITCH CAM | 1 |
| 32 | 71-14 | VALVE COVER GASKET | 1 |
| 33 | 71-A244A | CONTROL VALVE ASSEMBLY | 1 |
| 34 | 4821 | SNAP RING | 1 |
| 35 | 71-246 | SPRING RETAINER | 1 |
| 36 | 71-242 | VALVE SPRING | 1 |
| 37 | 71-243 | REGULATOR VALVE | 1 |
| 38 | 4804H | O-RING | 1 |
| 39 | 71-244A | CONTROL VALVE | 1 |
| 40 | 71C-A60 | PUMP ASSEMBLY | 1 |
| 41 | 10-00-183-021 | HEX HEAD BOLT (5/16-18 X 1-3/8) | 4 |
| 42 | 10-00-044-014 | OIL SEAL | 1 |
| 43 | 3-61 | PUMP GASKET | 1 |
| 44 | 4873 | WOODRUFF KEY | 1 |
| 45 | 71C-A8 | FORWARD AND REVERSE ADAPTER ASSEMBLY | 1 |
| 46 | 20-00-183-017 | CAPSCREW (3/8-16 X 1-1/4) | 4 |
| 47 | NO NUMBER | FORWARD AND REVERSE ADAPTER (NSS) | 1 |
| 48 | 4840D | NEEDLE BEARING | 1 |
| 49 | 71-144B | GASKET | 1 |
| 50 | X1516H | PIPE PLUG (1/4) | 1 |
| 51 | 71-35 | REVERSE CLUTCH PISTON | 1 |
| 52 | 4805A | CLUTCH SEALING RING | 1 |
| 53 | 4804G | O-RING | 1 |
| 54 | 71-71 | REVERSE CLUTCH PRESSURE PLATE | 1 |
| 55 | 72-176 | STEEL CLUTCH PLATE | *0-2 |
| 56 | 72-A66B | FRICTION CLUTCH PLATE | *1-3 |
| 57 | 71-97 | PRESSURE PLATE SPRING | 11 |
| 58 | 71-87A | DOWEL PIN (.312 DIA X .438 LONG) | 3 |
| 58A | R6-177 | DOWEL PIN (.312 DIA X .621 LONG) | 3 |
| 58B | 4622E | DOWEL PIN (.312 DIA X .875 LONG) | 3 |
| 58C | 10-00-043-031 | DOWEL PIN (.312 DIA X 1.000 LONG) | 3 |
| 59 | 71-15B | * THRUSTWASHER | 1 |
| 59A | 10-16-193-001 | THRUSTWASHER | 1 |
| 60 | 4822 | SNAP RING | 1 |
| 61 | R6A-7-1/2 | SNAP RING (10-17 ONLY) | 1 |
| 61A | 4766B | SNAP RING (10-18 ONLY) | 1 |
| 62 | 4734 | SNAP RING (10-17 ONLY) | 1 |
| 62A | 4559A | SNAP RING (10-18 ONLY) | 1 |
| 63 | 10-00-130-017 | BEARING (10-17 ONLY) | 1 |
| 63A | 10-00-130-016 | BEARING (10-18 ONLY) | 1 |
| 64 | 71-70 | FORWARD CLUTCH CYLINDER (10-17 ONLY) | 1 |
| 64A | 72-70 | FORWARD CLUTCH CYLINDER (10-18 ONLY) | 1 |
| 65 | 10-16-124-001 | FORWARD CLUTCH PISTON | 1 |
| 65A | 71-45 | CLUTCH PISTON SUPERSEDED BY 1016-124-001 | 1 |
| 66 | 5M-122 | O-RING | 1 |
| 67 | 5L -36 | PISTON SEALING RING | 1 |
| 68 | 5C-33 | CLUTCH SPRING BEARING RING | 1 |
| 69 | 3-37 | CLUTCH BELLEVILLE SPRING | 1 |
| 70 | 4755 | SNAP RING | 1 |
| 71 | 5C-175A | CLUTCH PRESSURE PLATE | 1 |
| 72 | 10-16-166-001 | STEEL CLUTCH PLATE (10-17 ONLY) | 4 |
| 72A | 10-16-166-001 | STEEL CLUTCH PLATE (10-18 ONLY) | 6 |
| 73 | 5C-A66A | FRICTION CLUTCH PLATE (10-17 ONLY) | 5 |
| 73A | 5C-A66A | FRICTION CLUTCH PLATE (10-18 ONLY) | 7 |
| 74 | 5L-67 | CLUTCH PRESSURE PLATE | 1 |
| 75 | 10-00-139-048 | SNAP RING (.033-.037 THICK) (10-17 ONLY) (Yellow) | 1 |
| 75A | 10-00-139-049 | SNAP RING (.050-.054 THICK) (10-17 ONLY) (Pink) | 1 |
| 75B | 4768 | SNAP RING (.050-.054 THICK) (10-18 ONLY) (Green) | 1 |
| 75C | 4768A | SNAP RING (.074-.078 THICK) (10-18 ONL Y) (Orange) | 1 |
| 75D | 4768B | SNAP RING (.096-.100 THICK) (10-18 ONLY) (White) | 1 |
| 75E | 10-00-139-018 | SNAP RING(.062-.066 THICK) (10-18 ONLY) (Purple) | 1 |
| 76 | 71-6 | RING GEAR (10-17 ONLY) | 1 |
| 76A | 10-16-162-001 | RING GEAR (10-18 ONLY) | 1 |
| 77 | 71-17 | THRUSTWASHER | 1 |
| 78 | 4806J | SEALING RING | 2 |
| 79 | 4495 | SNAP RING | 1 |
| 80 | 71-40 | FORWARD CLUTCH HUB (10-17 ONLY) | 1 |
| 80A | 10-16-179-001 | FORWARD CLUTCH HUB (10-18 ONLY) | 1 |
| 81 | 218211 | WOODRUFF KEY (10-17 ONLY) | 1 |
| 81A | 124553 | WOODRUFF KEY (10-18 ONLY) | 1 |
| 82 | 71C-3A16 | DRIVE GEAR ASSEMBLY (10-17 ONLY) | 1 |
| 82A | 72C-2A16 | DRIVE GEAR ASSEMBLY (10-18 ONLY) | 1 |
| 83 | 4806B | SEALING RING | 4 |
| 84 | 71-9C | BUSHING | 2 |
| 85 | 10-17-659-* * * | PINION CARRIER ASSEMBLY (10-17 ONLY) | 1 |
| 85A | 10-18-659-* * * | PINION CARRIER ASSEMBLY (10-18 ONLY) | 1 |
| 86 | 71-159 | THRUSTWASHER (USE W/BUSHING STYLE CASE) | 1 |
| 86A | 10-17-193-001 | THRUSTWASHER (USE W/SEALING RING STYLE CASE) | 1 |
| 87 | 10-17-036-002 | OIL BAFFLE (USED ON 71 C) | 1 |
| 87A | 10-18-036-001 | OIL BAFFLE (USED ON 72C) | 1 |
| 88 | 10-00-191-002 | PLUG (3/8-18) | 2 |
| 89 | 4885B | DRYSEAL BUSHING (3/4-14) | 1 |
| 90 | 5L-222 | SPRING, EARLY MODELS, NO LONGER USED | 1 |
| 91 | 35-143 | FLAT WASHER, EARLY MODELS, NO LONGER USED | 1 |
| 92 | 10-00-238-002 | OIL INLET SCREEN | 1 |
| 93 | 71C-84 | OIL RETURN TUBE | 1 |
| 94 | 71C-A98 | OIL STRAINER ASSEMBL Y | 1 |
| 95 | A4740G | BREATHER | 1 |
| 96 | 444866 | PIPE PLUG (3/8-18) | 1 |
| 97 | 444687 | PIPE PLUG (1/8-27) | 1 |
| 98 | 10-17-565-* * * | CASE (10-17 ONLY) | 1 |
| 98A | 10-18-565-* * * | CASE (10-18 ONLY) | 1 |
| NSS – NOT SERVICED SEPERATELY, BUY NEXT HIGHER ASSEMBLY | |||
| Note 1: REFER TO ASSEMBLY NUMBER ON ID TAG (See Figure 1) | |||
| *SEE CHART ON PAGE 34 TO DETERMINE PROPER AMOUNT. | |||
| **REFER TO REDUCTION SECTION IN BACK OF MANUAL. | |||
| *** CHECK MODEL CHART ON VELVET DRIVE PAGE TO DETERMINE CORRECT PART NUMBER
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| NOTE: The following kits are available for the Model 71 C and 72C transmissionsIndex numbers shown match the index numbers on the Above exploded-view | |||
| Ref # | Part # | Description | Qty |
| A4867AB | FORWARD CLUTCH PACK KIT (10-18 ONLY) | ||
| 71 | 5C-175A | >CLUTCH PRESSURE PLATE | 1 |
| 72A | 10-16-166-001 | STEEL CLUTCH PLATE | 6 |
| 73A | 5C-A66A | FRICTION CLUTCH PLATE | 7 |
| 74 | 5L-67 | CLUTCH PRESSURE PLATE | 1 |
| Ref # | Part # | Description | Qty |
| A4867AE | FORWARD CLUTCH PACK KIT (10-17 ONLY) | ||
| 71 | 5C-175A | CLUTCH PRESSURE PLATE | 1 |
| 72 | 10-16-166-001 | STEEL CLUTCH PLATE | 4 |
| 73 | 5C-A66A | FRICTION CLUTCH PLATE | 5 |
| 74 | 5L-67 | CLUTCH PRESSURE PLATE | 1 |
| Ref # | Part # | Description | Qty |
| A4867HA | OIL SEAL AND SEALING RING KIT | ||
| 6 | 71C-110 | OIL SEAL | 1 |
| 38 | 4804H | O-RING | 1 |
| 42 | 1 0-00-044-014 | OIL SEAL | 1 |
| 43 | 22341 | .PUMP GASKET | 1 |
| 52 | 4805A | CLUTCH SEALING RING | 1 |
| 53 | 4804G | O-RING | 1 |
| 66 | 5M-122 | O-RING | 1 |
| 67 | 5L-36 | CLUTCH SEALING RING | 1 |
| 78 | 4806J | SEALING RING | 2 |
| 83 | 4806B | SEALING RING | 4 |
| 10-00-044-017 | OIL SEAL (REDUCTION UNITS ONLY) | 1 | |
| 10-17-410-002 | SERVICE GASKET KIT (See Next Kit List) | 1 | |
| Ref # | Part # | Description | Qty |
| 10-17-41 0-002 | SERVICE GASKET KIT | ||
| 8 | 71-147 | BEARING RETAINER GASKET (10-17 ONLY) | 1 |
| 8A | 72-147 | BEARING RETAINER GASKET (10-18 ONLY) | 1 |
| 14 | L4-146 | ADAPTER GASKET | 1 |
| 32 | 71-14 | VALVE COVER GASKET | 1 |
| 49 | 71-144B | GASKET | 1 |
| L4-145 | GASKET (REDUCTION UNITS ONLY) | 1 | |
| L4-147 | GASKET (REDUCTION UNITS ONLY) | 1 | |
| Ref # | Part # | Description | Qty |
| 10-04-420-052 | NEUTRAL SWITCH KIT | ||
| 10-00-539-001 | SWITCH AND BODY ASSEMBL Y | 1 | |
| 25 | 10-00-640-004 | ..NEUTRAL SWITCH ASSEMBLY | 1 |
| 28 | 10-16-039-001 | VALVE COVER | 1 |
| 29 | 179796 | HEX HEAD BOLT (1/4-20 X 1/2) | 3 |
| 30 | 103319 | LOCKWASHER (1/4) | 3 |
| 31 | 1 0-16-099-001 | SWITCH CAM | 1 |
| 32 | 71-14 | VALVE COVER GASKET | 1 |
| 1340 | INSTRUCTION SHEET | 1 | |
| Ref # | Part # | Description | Qty |
| 10-95-410-002 | SNAP RING SERVICE KIT | ||
| 15 | 4766 | RETAINING RING | 1 |
| 34 | 4821 | SNAP RING | 1 |
| 60 | 4822 | SNAP RING | 1 |
| 61 | R6A-71/2 | SNAP RING (10-17 ONLY) | 1 |
| 61A | 47668 | SNAP RING (10-18 ONLY) | 1 |
| 62 | 4734 | SNAP RING (10-17 ONLY) | 2 |
| 62A | 4559A | SNAP RING (10-18 ONLY) | 1 |
| 70 | 4755 | SNAP RING | 1 |
| 75 | 10-00-139-048 | SNAP RING (.033-.037 THICK)(10-17 ONLY) (Yellow) | 1 |
| 75A | 10-00-139-049 | SNAP RING (.050-.054 THICK)(10-17 ONLY) (Pink) | 1 |
| 758 | 4768 | SNAP RING (050-.054 THICK)(10-18 ONLY) (Green) | 2 |
| 75C | 4768A | SNAP RING (.074-.078 THICK)(10-18 ONLY) (Orange) | 1 |
| 75D | 47688 | SNAP RING (.096-.100 THICK)(10-18 ONLY) (White) | 1 |
| 75E | 10-00-139-018 | SNAP RING (.062-.066 THICK)(10-18 ONLY) (Purple) | 1 |
| 79 | 4495 | SNAP RING | 1 |
| 4756D | SNAP RING (REDUCTION UNITS ONLY) | 1 | |
| 4756E | SNAP RING (REDUCTION UNITS ONLY) | 1 | |
| 4816 | SNAP RING (REDUCTION UNITS ONLY) | 1 | |
| 4766A | SNAP RING (REDUCTION UNITS ONLY) | 1 | |
| Reverse Plates use in each model | ||
| Steel Plates | Friction Plates | |
| 1017-001 | 0 | 1 |
| 1017-002 | 0 | 1 |
| 1017-003 throuqh 1017-108 use 1 steel and 2 friction plates |
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| 1017-202* | 1 | 2 |
| 1017-206* | 1 | 2 |
| * The 1017-202 and 1017-206 was originallybuilt with 2 special steel plates and one friction plateVelvet Drive recommends changing this configuration to 1 steel and two frictionIf the steel plates removed are .080″ to .084″ thick, destroy and discard them. They are no longer used in any Velvet-Drive transmission. Onlyplates measuring .066″ to .071″ are to be used in any 1017- or 1018-transmission. | ||
| Steel Plates | Friction Plates | |
| 1018-001 | 1 | 2 |
| 1018-002 | 1 | 2 |
| 1018-003 through 1018-106 use 2 steel and 3 friction plates. | ||
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Velvet Drive