Parts for Mariner 50 HP (3 Cylinder) Gear Housing (Drive Shaft)

Revise Search: All Models > 50 HP (3 Cylinder) > 7208333 - 0A721307 (Canada) > Gear Housing (Drive Shaft)

NEED PARTS OR KITS?
• View diagram and parts list below.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

LOOKING FOR A PROP?
• Try our prop finder.

COMPLETE GEARCASE?
• Aftermarket gearcase may be available for less than $900 USD. 70 HP+ only. Please call.

Engine section

Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

#-	1643-7406A30	GEAR HOUSING ASS'Y. (SHORT SHAFT) MERCURY (1 required per assembly)
		1643-7406A30 - 1643-7406A30 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 2
		1643-9539A 2 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#-	1643-7406A31	GEAR HOUSING ASS'Y. (LONG SHAFT) MERCURY (1 required per assembly)
		1643-7406A31 - 1643-7406A31 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 3
		1643-9539A 3 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#-	1643-7406A42	GEAR HOUSING ASSEMBLY (LONG SHAFT) MARINER (1 required per assembly)
		1643-7406A42 - 1643-7406A42 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 9
		1643-9539A 9 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#1	1643-7406A16	GEAR HOUSING ASSEMBLY MERCURY (1 required per assembly)
		1643-7406A16 - 1643-7406A16 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 1
		1643-9539A 1 - 1643-9539A 1 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539T 1
		1643-9539T 1 - GEAR HOUSING O NLA [ More info ] Unavailable
#1	1643-7406A41	GEAR HOUSING ASSEMBLY MARINER (1 required per assembly)
		1643-7406A41 - 1643-7406A41 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 8
		1643-9539A 8 - 1643-9539A 8 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539T 8
		1643-9539T 8 - ORD 1643-9539T 1 O NLA [ More info ] Unavailable
#2	22-85822A 1	CONNECTOR ASSEMBLY, SPEEDOMETER (1 required per assembly)
		22-85822A 1 - 22-85822A 1 - CONNECTOR ASSEMBL O [ More info ] Unavailable Replaced by 22-85822A10
		22-85822A10 - Connector Assembly [ More info ] $17.30 $14.81 Available to order: Usually ships within 8 days.
#3	17-85500	DOWEL PIN, GEAR HOUSING (2 required per assembly)
		17-85500 - Pin -Dowel [ More info ] $3.00 10+ in stock.
		178M0084726 - Pin - Dowel [ More info ] $3.60 Available to order: Usually ships within 8 days.
#4	16-33778	STUD, WATER PUMP (2-5/8") (3 required per assembly)
		16-33778 - Stud [ More info ] $8.20 1 in stock.
#5	16-57933	STUD, GEAR HOUSING (2 required per assembly)
		16-57933 - STUD [ More info ] $14.13 2 in stock.
		16-8M0034453 - Stud [ More info ] $16.90 $14.47 Available to order: Usually ships within 8 days.
#6	31-62091	ROLLER BEARING, DRIVE SHAFT (1 required per assembly)
		31-62091 - Bearing [ More info ] $30.35 4 in stock.
		31-62091T - Bearing [ More info ] $49.17 Available to order: Usually ships within 8 days.
#7	72849A 1	SCREEN, WATER INTAKE - STARBOARD AND PORT (1 required per assembly)
		72849A 1 - SCREEN ASSEMBLY O NLA [ More info ] Unavailable
#8	10-36070	SCREW, WATER INTAKE SCREEN (1 required per assembly)
		10-36070 - Screw - Priced Individually [ More info ] $5.60 10+ in stock.
#9	11-45812	NUT, WATER INTAKE SCREEN SCREW (1 required per assembly)
		11-45812 - 11-45812 - NUT (#10-32) Stai O [ More info ] Unavailable Replaced by 11-859124
		11-859124 - Nut - Priced Individually [ More info ] $13.25 10 in stock.
#10	92815	PLATE, SUPPORT - EXHAUST TUBE (1 required per assembly)
		92815 - Support Plate, Exhaust Tube [ More info ] $16.08 5 in stock.
#11	37721	SEAL, EXHAUST TUBE (1 required per assembly)
		37721 - 37721 - SEAL O [ More info ] Unavailable Replaced by -37721001
		37721001 - Seal - Priced Individually [ More info ] $9.90 10+ in stock.
		18-0539 - Seal, 37721 37721-001 [ More info ] $8.99 $7.23 1 in stock.
#12	43-88019	PINION GEAR (1 required per assembly)
		43-88019 - Pinion Gear [ More info ] $117.65 6 in stock.
		43-88019T - Pinion Gear [ More info ] $236.83 Available to order: Usually ships within 8 days.
#13	11-55910	NUT, PINION GEAR TO DRIVE SHAFT (1 required per assembly)
		11-55910 - Nut - Priced Individually [ More info ] $4.00 $2.70 10+ in stock.
#14	27-77417	GASKET, WATER PUMP (1 required per assembly)
		27-77417 - Gasket - Priced Individually [ More info ] $1.00 10+ in stock.
		27-19552 - Gasket [ More info ] $1.80 10+ in stock.
		18-2841-9 - Gasket 27-77417 2-Pack [ More info ] $3.98 $2.85 2 in stock.
#15	25-26722	"O" RING, WATER PUMP BASE (1 required per assembly)
		25-26722 - O-Ring - Priced Individually [ More info ] $1.90 1 in stock.
		18-7115 - O-Ring 25-26722 [ More info ] $2.49 $1.35 8 in stock.
#16	46-77177A 1	WATER PUMP BASE ASSEMBLY (1 required per assembly)
		46-77177A 1 - Water Pump Base [ More info ] $40.17 2 in stock.
		18-3424 - Water Pump Base, 46-77177A1 [ More info ] $40.49 $32.21 Available to order: Usually ships within 8 days.
#17	26-79831	OIL SEAL, WATER PUMP BASE (1 required per assembly)
		26-79831 - Seal [ More info ] $12.70 5 in stock.
		18-2055 - Seal, 26-79831 [ More info ] $10.99 $8.48 2 in stock.
#18	26-90562	OIL SEAL, WATER PUMP BASE (1 required per assembly)
		26-90562 - Seal - Priced Individually [ More info ] $15.70 8 in stock.
		18-2011 - Seal 26-90562 [ More info ] $13.49 $9.66 10+ in stock.
#19	17-35973	DOWEL PIN, WATER PUMP BASE (2 required per assembly)
		17-35973 - Pin -Dowel - Priced Individually [ More info ] $1.40 10+ in stock.
		18-3227-9 - Pin, 17-35973, 5PK [ More info ] $9.95 $7.44 1 in stock.
#20	27-32769	GASKET, LOWER - WATER PUMP (1 required per assembly)
		27-32769 - 27-32769 - GASKET O [ More info ] Unavailable Replaced by 27-19553
		27-19553 - Gasket - Priced Individually [ More info ] $2.80 7 in stock.
		18-2823-9 - Gasket 27-32769 2-Pack [ More info ] $5.98 $3.46 2 in stock.
#21	54705	PLATE, FACE - WATER PUMP (1 required per assembly)
		54705 - Face Plate - Priced Individually [ More info ] $2.50 10+ in stock.
		32768 - Face Plate, Water Pump Base to Water Pump Body [ More info ] $3.20 Available to order: Usually ships within 8 days.
		18-3107 - Plate 32768 [ More info ] $2.99 $2.44 4 in stock.
#22	27-32770	GASKET, UPPER - WATER PUMP (1 required per assembly)
		27-32770 - 27-32770 - GASKET O [ More info ] Unavailable Replaced by 27-19551
		27-19551 - Gasket - Priced Individually [ More info ] $1.80 10+ in stock.
		18-2824-9 - Gasket 27-32770 2-Pack [ More info ] $4.98 $2.50 10+ in stock.
#23	47-89983	IMPELLER, WATER PUMP (1 required per assembly)
		47-89983 - 47-89983 - IMPELLER O [ More info ] Unavailable Replaced by 47-89983T
		47-89983T - Impeller [ More info ] $20.42 10+ in stock.
		18-3007 - Impeller 47-89983 [ More info ] $17.99 $13.02 10+ in stock.
#24	28-56662	KEY, IMPELLER DRIVE (1 required per assembly)
		28-56662 - 28-56662 - KEY O [ More info ] Unavailable Replaced by 28-8M0032837
		28-8M0032837 - Key - Priced Individually [ More info ] $4.10 10+ in stock.
#25	46-77822A 1	WATER PUMP BODY ASSEMBLY (1 required per assembly)
		46-77822A 1 - Water Pump Body [ More info ] $25.50 $21.84 Available to order: Usually ships within 8 days.
		18-3118 - Water Pump Housing, 46-77822A1 [ More info ] $22.99 $17.91 3 in stock.
#26	48753	INSERT, WATER PUMP BODY (1 required per assembly)
		48753 - Water Pump Body Insert [ More info ] $5.00 7 in stock.
		18-3115 - Cup, 48753 [ More info ] $4.99 $3.71 1 in stock.
#27	26-38452	SEAL, RUBBER - WATER PUMP (1 required per assembly)
		26-38452 - Seal - Priced Individually [ More info ] $3.20 10+ in stock.
#28	12-38453	WASHER, NYLON - WATER PUMP (1 required per assembly)
		12-38453 - Washer - Priced Individually [ More info ] $0.89 6 in stock.
#29	12-29245	WASHER, WATER PUMP STUDS (3 required per assembly)
		12-29245 - Washer [ More info ] $0.90 10+ in stock.
		18-4275 - SS Washer [ More info ] $1.99 $1.46 4 in stock.
#30	11-20361	NUT, WATER PUMP STUDS (3 required per assembly)
		11-20361 - Nut , Priced Individually [ More info ] $0.60 10+ in stock.
		11-826708 9 - Nut - Priced Individually [ More info ] $1.00 3 in stock.
		18-3722-9 - Lock Nut, 121731, 11-35888 [ More info ] $14.95 $7.67 Available to order: Usually ships within 8 days.
#31	25-20273	RING, RUBBER (DRIVE SHAFT) (1 required per assembly)
		25-20273 - O-Ring - Priced Individually [ More info ] $1.10 10+ in stock.
#32	78654A 1	SEAT ASSEMBLY (1 required per assembly)
		78654A 1 - Seat Assembly [ More info ] $15.00 3 in stock.
#33	86304	SEAL, SPLINED (1 required per assembly)
		86304 - Splined Seal [ More info ] $7.40 6 in stock.
#34	10-79953	SCREW, GREASE FILLER (1 required per assembly)
		10-79953 - 10-79953 - SCREW (.375-16 x O [ More info ] Unavailable Replaced by 10-79953A 2
		10-79953A 2 - 10-79953A 2 - SCREW KIT (.375-1 O [ More info ] Unavailable Replaced by 10-79953Q 2
		10-79953Q 2 - 10-79953Q 2 - SCREW KIT (.375-1 O [ More info ] Unavailable Replaced by 10-79953Q04
		10-79953Q04 - Screw Kit - Priced Individually [ More info ] $5.80 10+ in stock.
		18-2244 - Plug Kit, 10-79953A2 [ More info ] $2.99 $2.07 10+ in stock.
		10-79953K04 - Drain Screw - Priced Individually [ More info ] $5.80 10+ in stock.
#35	22-67892	SCREW, DRAIN (MAGNETIC) (1 required per assembly)
		22-67892 - 22-67892 - SCREW Magnetic O [ More info ] Unavailable Replaced by 22-67892A 1
		22-67892A 1 - 22-67892A 1 - FITTING KIT Magne O [ More info ] Unavailable Replaced by 22-67892A05
		22-67892A05 - 22-67892A05 - PLUG KIT Drain (M O [ More info ] Unavailable Replaced by 22-67892A06
		22-67892A06 - 22-67892A06 - PLUG KIT Drain - O [ More info ] Unavailable Replaced by 22-8M0058389
		22-8M0058389 - Screw Kit - Priced Individually [ More info ] $6.33 10+ in stock.
		18-23751-9 - Drain Screw , Package of 50 - Special Order - No Returns [ More info ] $400.33 $284.06 Available to order: Usually ships within 8 days.
		18-2375 - Plug, 22-67892A1 [ More info ] $6.99 $4.59 3 in stock.
#36	12-20260	WASHER, GREASE FILLER AND DRAIN SCREW (2 required per assembly)
		12-20260 - 12-20260 - WASHER O [ More info ] Unavailable Replaced by 12-19183
		12-19183 - 12-19183 - WASHER Fiber O [ More info ] Unavailable Replaced by 12-19183 2
		12-19183 2 - 12-19183 2 - WASHER O [ More info ] Unavailable Replaced by 12-19183 3
		12-19183 3 - Seal -Blue - Priced Individually [ More info ] $1.00 10+ in stock.
		18-2945-9 - Gasket 12-19183 2-Pack [ More info ] $2.78 $1.52 10+ in stock.
		12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] $5.10 10+ in stock.
		12-19183K02 - Seal, Pack of 4 [ More info ] $5.10 10+ in stock.
#37	88181	SLEEVE, LUBRICATION (1 required per assembly)
		88181 - Lubrication Sleeve [ More info ] $11.50 10+ in stock.
#38	15-92881A 1	SHIM, ROLLER BEARING (.002-3-5-10-20) (AR required per assembly)
		15-92881A 1 - Shim Set [ More info ] $5.20 4 in stock.
#39	31-77420A 1	ROLLER BEARING ASSEMBLY, TAPERED (1 required per assembly)
		31-77420A 1 - Bearing Kit [ More info ] $39.10 $33.48 Available to order: Usually ships within 8 days.
#40	45-88025A 2	DRIVE SHAFT ASSEMBLY (SHORT SHAFT) (1 required per assembly)
		45-88025A 2 - Drive Shaft [ More info ] $360.00 3 in stock.
		45-98179 - Drive Shaft - Short [ More info ] $357.17 1 in stock.
#40	45-88024A 2	DRIVE SHAFT ASSEMBLY (LONG SHAFT) (1 required per assembly)
		45-88024A 2 - 45-88024A 2 - DRIVESHAFT ASSEMB O [ More info ] Unavailable Replaced by 45-98180
		45-98180 - DRIVESHAFT O NLA [ More info ] Unavailable
#41	24-20254	SPRING, COMPRESSION - DRIVE SHAFT (1 required per assembly)
		24-20254 - Spring, NLA [ More info ] $8.50 10+ in stock.
#42	17-30545	PIN, DRIVE SHAFT (1 required per assembly)
		17-30545 - Pin - Priced Individually [ More info ] $4.30 2 in stock.
#43	76063A 1	SHAFT ASSEMBLY, SHIFT - LOWER (1 required per assembly)
		76063A 1 - Shaft Assembly [ More info ] $96.90 1 in stock.
#44	53-29641	CLIP, RETAINING - SHIFT SHAFT (1 required per assembly)
		53-29641 - E Ring - Priced Individually [ More info ] $1.30 10 in stock.
		18-4295-9 - Clip, 53-29461, 2PK [ More info ] $2.98 $1.83 5 in stock.
#45	25-25439	"O" RING, SHIFT SHAFT BUSHING (1 required per assembly)
		25-25439 - O-Ring - Priced Individually [ More info ] $1.50 10+ in stock.
		18-7420-9 - O-Ring (PK5) 25-21836 [ More info ] $9.95 $4.35 10+ in stock.
#46	23-77631A 2	BUSHING ASSEMBLY, SHIFT SHAFT (1 required per assembly)
		23-77631A 2 - Bushing Assembly [ More info ] $25.50 $21.84 3 in stock.
		18-2155 - Bushing, 23-77631A2 [ More info ] $20.99 $16.70 3 in stock.
#47	26-76384	OIL SEAL, SHIFT SHAFT BUSHING (1 required per assembly)
		26-76384 - Seal [ More info ] $5.00 6 in stock.
		26-816464 - 26-816464 - SEAL Oil * [ More info ] Unavailable Replaced by 26-816464 1
		26-816464 1 - Seal [ More info ] $12.20 4 in stock.
		18-8347 - Seal, 26-816464 1 [ More info ] $11.99 Available to order: Usually ships within 8 days.
		18-2054 - Oil Seal Mercury [ More info ] $9.99 $8.09 10+ in stock.
#48	12-77674	WASHER, RUBBER - SHAFT BUSHING (1 required per assembly)
		12-77674 - Washer [ More info ] $1.10 Available to order: Usually ships within 8 days.
		18-2316-9 - Washer, 12-77674, 5PK [ More info ] $7.45 $3.07 3 in stock.
#49	78036	BASE, REVERSE LOCKING (1 required per assembly)
		78036 - Reverse Locking Base - Priced Individually [ More info ] $5.40 10+ in stock.
#50	43308	CAM, REVERSE LOCKING (1 required per assembly)
		43308 - 43308 - CAM O [ More info ] Unavailable Replaced by -43308 1
		43308 1 - 43308 1 - CAM O [ More info ] Unavailable Replaced by -43308T 1
		43308T 1 - Cam [ More info ] $39.58 3 in stock.
#-	46-77177A 3	REPAIR PUMP KIT (1 required per assembly)
		46-77177A 3 - Water Pump Kit [ More info ] $96.42 4 in stock.
		18-3324 - Water Pump Kit 46-77177A3 [ More info ] $84.49 $66.21 10 in stock.
#-	26-79831A 1	REPAIR SEAL KIT (1 required per assembly)
		26-79831A 1 - Seal Kit [ More info ] $92.80 $79.46 In stock
		18-2654 - Seal Kit 26-79831A1 [ More info ] $67.99 $51.97 10+ in stock.
#-	27-88449A32	GASKET SET (1 required per assembly)
		27-88449A32 - Gasket Set [ More info ] $90.42 Available to order: Usually ships within 8 days.
		18-4357 - Gasket Set 27-88449A32 [ More info ] $97.99 $78.81 2 in stock.