Parts for Mercury Marine 50 HP (4 Cylinder) Gear Housing (Propeller Shaft)

Revise Search: All Models > 50 HP (4 Cylinder) > 9248006 & Up (Belgium) > Gear Housing (Propeller Shaft)

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

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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 ]

#-	1643-7406A34	GEAR HOUSING ASSEMBLY (SHORT SHAFT) MERCURY (1 required per assembly)
		1643-7406A34 - 1643-7406A34 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 4
		1643-9539A 4 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#-	1643-7406A35	GEAR HOUSING ASSEMBLY (LONG SHAFT) MERCURY (1 required per assembly)
		1643-7406A35 - 1643-7406A35 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 5
		1643-9539A 5 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#-	1643-7406A43	GEAR HOUSING ASSEMBLY (X-LONG SHAFT) MERCURY (1 required per assembly)
		1643-7406A43 - 1643-7406A43 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A10
		1643-9539A10 - GEAR HOUSING O NLA [ More info ] Unavailable
#-	1643-7406A38	GEAR HOUSING ASSEMBLY (SHORT SHAFT) MARINER (1 required per assembly)
		1643-7406A38 - 1643-7406A38 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 6
		1643-9539A 6 - GEAR HUSING ASSEM O NLA [ More info ] Unavailable
#-	1643-7406A39	GEAR HOUSING ASSEMLBY (LONG SHAFT) MARINER (1 required per assembly)
		1643-7406A39 - 1643-7406A39 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 7
		1643-9539A 7 - 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
#51	76039	SHIFT CAM (1 required per assembly)
		76039 - 76039 - CAM Shift Control O [ More info ] Unavailable Replaced by -76039 4
		76039 4 - Shift Cam - Priced Individually [ More info ] $27.59 5 in stock.
#52	15-38374A 1	SHIM, BEARING CUP TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
		15-38374A 1 - SHIM SET O NLA [ More info ] Unavailable
#53	31-38356A 1	TAPERED ROLLER BEARING ASSEMBLY (1 required per assembly)
		31-38356A 1 - Bearing Set [ More info ] $68.25 Available to order: Usually ships within 8 days.
		18-1162 - Bearing 31-38356A1 [ More info ] $54.67 $43.41 1 in stock.
#54	43-55608A 4	FORWARD GEAR (1 required per assembly)
		43-55608A 4 - 43-55608A 4 - GEAR ASSEMBLY For O [ More info ] Unavailable Replaced by 43-55608T 4
		43-55608T 4 - Forward Gear [ More info ] $343.25 Available to order: Usually ships within 8 days.
#55	31-21739	ROLLER BEARING - FORWARD GEAR (1 required per assembly)
		31-21739 - Bearing [ More info ] $13.50 10+ in stock.
#56	38441	CAM FOLLOWER (1 required per assembly)
		38441 - Cam Follower [ More info ] $41.33 2 in stock.
#57	20843	SLIDE, CROSS PIN (1 required per assembly)
		20843 - Cross Slide [ More info ] $17.34 10+ in stock.
#58	24-38114	SPRING, RETAINING - CROSS PIN (1 required per assembly)
		24-38114 - Spring [ More info ] $3.10 Available to order: Usually ships within 8 days.
#59	52-92911	RATCHET, SLIDING CLUTCH (1 required per assembly)
		52-92911 - 52-92911 - RATCHET O [ More info ] Unavailable Replaced by 52-92911T
		52-92911T - Clutch [ More info ] $111.33 Available to order: Usually ships within 8 days.
#60	17-38113	CROSS PIN - RATCHET TO PROPELLER SHAFT (1 required per assembly)
		17-38113 - Pin -cross - Priced Individually [ More info ] $2.55 10+ in stock.
		17-8M0020942 - Pin -cross - Priced Individually [ More info ] $3.10 1 in stock.
#61	24-39845	SPRING, COMPRESSION - CAM FOLLOWER (1 required per assembly)
		24-39845 - Spring, NLA [ More info ] $9.00 10+ in stock.
#62	44-75365	PROPELLER SHAFT (1 required per assembly)
		44-75365 - Propeller Shaft [ More info ] $315.00 2 in stock.
#63	43-79158	REVERSE GEAR (1 required per assembly)
		43-79158 - GEAR-REVERSE [ More info ] $150.00 2 in stock.
		43-79158T - Reverse Gear [ More info ] $247.17 Available to order: Usually ships within 8 days.
#64	12-32004	WASHER, THRUST - REVERSE GEAR (1 required per assembly)
		12-32004 - Washer, NLA [ More info ] $14.00 10+ in stock.
#65	30-20839	BALL BEARING - REVERSE GEAR (1 required per assembly)
		30-20839 - 30-20839 - BEARING Ball O [ More info ] Unavailable Replaced by 30-20839T
		30-20839T - Ball Bearing [ More info ] $68.70 $58.83 Available to order: Usually ships within 8 days.
		18-1190 - Bearing, 30-20839T [ More info ] $58.70 $47.67 In stock
#66	25-31986	"O" RING, BEARING CARRIER (1 required per assembly)
		25-31986 - O-Ring - Priced Individually [ More info ] $3.20 10+ in stock.
		18-7160-9 O-Ring 25-31986 , 5 Pack [ More info ] $17.45 $10.37 Available to order: Usually ships within 8 days.
#67	69386A 1	BEARING CARRIER ASSEMBLY (1 required per assembly)
		69386A 1 - 69386A 1 - CARRIER ASSEMBLY O [ More info ] Unavailable Replaced by -69386T 1
		69386T 1 - CARRIER ASSY-BRG O NLA [ More info ] Unavailable
#68	31-21700	ROLLER BEARING - BEARING CARRIER (1 required per assembly)
		31-21700 - Bearing [ More info ] $14.10 Available to order: Usually ships within 8 days.
#69	26-69188	OIL SEAL, BEARING CARRIER (1 required per assembly)
		26-69188 - Seal [ More info ] $13.70 10+ in stock.
		18-2051 - Seal, 26-69188 [ More info ] $13.49 $9.07 10+ in stock.
#70	26-69189	OIL SEAL, BEARING CARRIER (1 required per assembly)
		26-69189 - Seal [ More info ] $16.30 $13.96 7 in stock.
		18-2052 - Seal, 26-69189 [ More info ] $14.99 $10.75 10+ in stock.
#71	28-30281	KEY, LOCATING - BEARING CARRIER (1 required per assembly)
		28-30281 - Key - Priced Individually [ More info ] $0.90 10+ in stock.
#72	14-53012	TAB WASHER, GEAR HOUSING COVER (1 required per assembly)
		14-53012 - Tab Washer [ More info ] $14.40 8 in stock.
#73	11-87763	NUT, GEAR HOUSING (1 required per assembly)
		11-87763 - Nut - Priced Individually [ More info ] $8.30 10 in stock.
#74	31640A 1	TRIM TAB ASSEMBLY, GEAR HOUSING (1 required per assembly)
		31640A 1 - 31640A 1 - TRIM TAB ASSEMBLY O [ More info ] Unavailable Replaced by -31640 3
		31640 3 - TRIM TAB [ More info ] $11.00 2 in stock.
		31640 4 - 31640 4 - TRIM TAB O [ More info ] Unavailable Replaced by 97-31640Q 4
		97-31640Q4 - Anode/Trim Tab [ More info ] $14.49 Available to order: Usually ships within 8 days.
		18-6241 - Trim Tab Anode, Magnesium 31640 [ More info ] $13.49 $11.03 10+ in stock.
		18-6011A - Trim Tab Anode, Aluminum [ More info ] $12.99 $10.49 10+ in stock.
		18-6011 - Trim Tab, Zinc, 31640A1 [ More info ] $13.49 $10.15 10+ in stock.
		97-31640T 4 - Trim Tab Anode [ More info ] $14.49 Available to order: Usually ships within 8 days.
#75	10-66024	SCREW, TRIM TAB TO GEAR HOUSING (1 required per assembly)
		10-66024 - Screw - Priced Individually [ More info ] $6.80 10 in stock.
#76	12-45175	WASHER, DRIVE SHAFT HOUSING STUD (3/8") (1 required per assembly)
		12-45175 - Washer - Priced Individually [ More info ] $0.75 2 in stock.
		12-856774 - Washer [ More info ] $1.60 10+ in stock.
#77	11-34863	NUT, DRIVE SHAFT HOUSING STUD (3/8") (1 required per assembly)
		11-34863 - Nut , Priced Individually [ More info ] $2.50 9 in stock.
		11-826709113 - Nut -ss - Priced Individually [ More info ] $5.30 10+ in stock.
#78	12-65791	WASHER, HOUSING TO STUD (7/16") (1 required per assembly)
		12-65791 - WASHER O NLA [ More info ] Unavailable
#79	11-34933	NUT, STUD (7/16") (1 required per assembly)
		11-34933 - Nut - Priced Individually [ More info ] $3.90 10+ in stock.
		18-3721-9 - Lock Nut, 11-34933, 5PK [ More info ] $14.95 $10.17 10+ in stock.
#80	73345A 1	THRUST HUB, FRONT (1 required per assembly)
		73345A 1 - Thrust Washer [ More info ] $12.71 Available to order: Usually ships within 8 days.
		18-4233 - Thrust Washer, 73345A1 [ More info ] $17.09 $13.32 5 in stock.
#81	14-76281	TAB WASHER, PROPELLER NUT (1 required per assembly)
		14-76281 - Tab Washer - Priced Individually [ More info ] $4.23 $3.44 10+ in stock.
		18-3204-9 - Washer, 14-76281, 10PK [ More info ] $16.04 $11.33 10+ in stock.
		14-76281Q - Tab Washer - Priced Individually [ More info ] $4.23 1 in stock.
#82	11-69578A 1	PROPELLER NUT (1 required per assembly)
		11-69578A 1 - 11-69578A 1 - PROP NUT KIT O [ More info ] Unavailable Replaced by 11-69578Q 1
		11-69578Q 1 - Prop Nut Kit - Priced Individually [ More info ] $11.72 3 in stock.
		18-3704 - Nut, 11-69578 [ More info ] $17.39 $13.58 2 in stock.
		18-3702 - Nut Kit, 11-69578Q1 [ More info ] $11.96 $9.94 10 in stock.
		11-69578T 1 - Prop Nut Kit - Priced Individually [ More info ] $11.72 2 in stock.
#-	72486A32	GASKET SET
		27-72486A32 - Gasket Set, NLA [ More info ] $100.00 2 in stock.
		18-4353 - Gasket Set 27-72486A32 [ More info ] $92.99 $73.14 1 in stock.