Logo
Launch the site guide

Parts for MerCruiser II (1.78:1) 1968-1969 Gear Housing Assembly, Complete

# 1625-3503A 3 GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly)
1625-3503A 3 - GEAR HOUSING ASSY  NLA
 

About Mercury Marine

OEM Part

1625-3503A 3 - GEAR Housing, NLA [ More info ]
Unavailable
#1 1625-3503A 1 GEAR HOUSING ASSEMBLY (1 required per assembly)
1625-3503A 1 - GEAR HOUSING ASSY  NLA
 

About Mercury Marine

OEM Part

1625-3503A 1 - GEAR Housing, NLA [ More info ]
Unavailable
#2 31-49920 BEARING, ROLLER-DRIVE SHAFT (1 required per assembly)
BEARING,NLA 31-49920
 

About Mercury Marine

OEM Part

31-49920 - Bearing - Roller [ More info ]

Add to shopping cart $55.00
2 In Stock.

#3 45-49919 DRIVE SHAFT (1 required per assembly)
DRIVE SHAFT,NLA 45-49919
 

About Mercury Marine

OEM Part

45-49919 - Drive Shaft, NLA [ More info ]

Add to shopping cart $90.00
4 In Stock.

#4 43-49672 GEAR, PINION-DRIVE SHAFT (1 required per assembly)
PINION GEAR,NLA 43-49672
 

About Mercury Marine

OEM Part

43-49672 - Gear, Pinion-drive Shaft, NLA [ More info ]

Add to shopping cart $65.00
3 In Stock.

#5 34953 SHIELD, OIL (1 required per assembly)
SHIELD,NLA 34953
 

About Mercury Marine

OEM Part

34953 - Shield, NLA [ More info ]

Add to shopping cart $2.50
10+ In Stock.

#6 11-31538 NUT, PINION GEAR TO DRIVE SHAFT (1 required per assembly)
NUT 11-31538
11-31538

About Mercury Marine

OEM Part

11-31538 - Nut (.750-16)NLA [ More info ]

Add to shopping cart $16.00
10+ In Stock.

#7 15-20928A 1 SHIM, BEARING TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
15-20928A 1 - SHIM SET           NLA
15-20928A 1

About Mercury Marine

OEM Part

15-20928A 1 - Shim Set, NLA [ More info ]
Unavailable
#8 30-32165 BEARING, BALL-DRIVE SHAFT (1 required per assembly)
BALL BEARING    ,NLA 30-32165
 

About Mercury Marine

OEM Part

30-32165 - Ball Bearing , NLA [ More info ]

Add to shopping cart $25.00
10+ In Stock.

#9 53-31539 RING, SNAP-BALL BEARING TO GEAR HOUSING (1 required per assembly)
SNAP RING,NLA 53-31539
 

About Mercury Marine

OEM Part

53-31539 - Snap Ring, NLA [ More info ]

Add to shopping cart $2.00
10 In Stock.

#11 34956 RETAINER, BALL BEARING-DRIVE SHAFT (1 required per assembly)
RETAINER,NLA 34956
 

About Mercury Marine

OEM Part

34956 - Retainer, NLA [ More info ]

Add to shopping cart $4.00
7 In Stock.

#12 10-30225 SCREW, BALL BEARING RETAINER TO HOUSING (1") (4 required per assembly)
SCREW W/LW 10-30225
10-30225

About Mercury Marine

OEM Part

10-30225 - Screw w/ Lw - Priced Individually [ More info ]

Add to shopping cart $0.90
4 In Stock.

#13 26-33613 SEAL, OIL TUBE-BALL BEARING RETAINER (1 required per assembly)
SEAL 26-33613
26-33613

About Mercury Marine

OEM Part

26-33613 - Seal - Priced Individually [ More info ]

Add to shopping cart $4.90
10+ In Stock.

#14 10-28634 SCREW, GEAR HOUSING GREASE FILLER HOLE (1 required per assembly)
10-28634 - SCREW (.375-16)    - Replaced by 10-79953
10-28634

10-28634 - Drain Screw ONLY, Priced Individually [ More info ]
Unavailable
10-79953 - SCREW (.375-16 x   - Replaced by 10-79953A2
10-79953

10-79953 - Drain Screw ONLY, Priced Individually [ More info ]
Unavailable
10-79953A2 - ->79953Q2 - Replaced by -79953Q2
10-79953A2

10-79953A 2 - Drain Screw Kit [ More info ]
Unavailable
10-79953Q2 - ->79953Q04 - Replaced by -79953Q04
10-79953Q2

10-79953Q 2 - Screw Kit - Priced Individually [ More info ]
Unavailable
SCREW-DRAIN 10-79953Q04
10-79953Q04

About Mercury Marine

OEM Part

10-79953Q04 - Screw Kit - Priced Individually [ More info ]

Add to shopping cart $7.20
10+ In Stock.

DRAIN PLUG
18-2244

About Sierra Marine

OEM Match

18-2244 - Plug Kit, 10-79953A2 [ More info ]

Add to shopping cart $3.59
10+ In Stock.

SCREW-DRAIN   10 79953K04
10 79953K04

About Mercury Marine

OEM Part

10-79953K04 - Drain Screw - Priced Individually [ More info ]

Add to shopping cart $7.20
10+ In Stock.

#15 12-20260 WASHER, GEAR HOUSING GREASE FILLER HOLE SCREW (1 required per assembly)
12-20260 - WASHER             - Replaced by 12-19183
12-20260

12-20260 - Sealing Washer [ More info ]
Unavailable
12-19183 - WASHER Fiber       - Replaced by 12-191832
12-19183

12-19183 - Washer (3/8 Inch Screw) [ More info ]
Unavailable
12-191832 - ->191833 - Replaced by -191833
12-191832

12-19183 2 - Washer - Priced Individually [ More info ]
Unavailable
SEAL-BLUE 12-191833
12-191833

About Mercury Marine

OEM Part

12-19183 3 - Seal -Blue - Priced Individually [ More info ]

Add to shopping cart $1.40
10+ In Stock.

DRAIN SCREW GASKET 2
18-2945

About Sierra Marine

OEM Match

18-2945-9 - Gasket 12-19183 2-Pack [ More info ]

Add to shopping cart $2.29
10+ In Stock.

SEAL (4)   12 19183Q02
12 19183Q02

About Mercury Marine

OEM Part

12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ]

Add to shopping cart $6.40
10+ In Stock.

SEAL (4)   12 19183K02
12 19183K02

About Mercury Marine

OEM Part

12-19183K02 - Seal, Pack of 4 [ More info ]

Add to shopping cart $6.40
7 In Stock.

#16 15-38374A 1 SHIM, BEARING CUP TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
15-38374A 1 - SHIM SET           NLA
15-38374A 1

About Mercury Marine

OEM Part

15-38374A 1 - Shim Set [ More info ]
Unavailable
#17 31-38356A 1 TAPERED ROLLER BEARING ASSEMBLY, PROPELLER SHAFT (1 required per assembly)
BEARING SET 31-38356A 1
31-38356A 1

About Mercury Marine

OEM Part

31-38356A 1 - Tapered Roller Bearing [ More info ]

Add to shopping cart $91.83 $78.06
9 In Stock.

#18 31-38357 CUP, TAPERED ROLLER BEARING (1 required per assembly)
BEARING CUP,NLA 31-38357
 

About Mercury Marine

OEM Part

31-38357 - Bearing Cup, NLA [ More info ]

Add to shopping cart $4.00
3 In Stock.

#19 49918 ADAPTOR, TAPERED ROLLER BEARING TO PROPELLER SHAFT (1 required per assembly)
ADAPTOR,NLA 49918
 

About Mercury Marine

OEM Part

49918 - Adaptor, NLA [ More info ]

Add to shopping cart $16.00
2 In Stock.

#20 43-31526 GEAR, PROPELLER-PROPELLER SHAFT (1 required per assembly)
PROPELLER GEAR,NLA 43-31526
 

About Mercury Marine

OEM Part

43-31526 - Propeller Gear [ More info ]

Add to shopping cart $95.20
2 In Stock.

#21 31-30894A 1 TAPERED ROLLER BEARING ASSEMBLY, PROPELLER GEAR (1 required per assembly)
BEARING SET Cup And Con 31-30894A 1
31-30894A 1

About Mercury Marine

OEM Part

31-30894A 1 - Tapered Roller Bearing [ More info ]

Add to shopping cart $58.17
Available to Order: Usually ships within 10 days.

TAPERED ROLLER BEARING
18-1156

About Sierra Marine

OEM Match

18-1156 - Bearing 31-30894A1 [ More info ]

Add to shopping cart $52.99 $47.43
In Stock

#22 31-31092 CUP, TAPERED ROLLER BEARING (1 required per assembly)
BEARING CUP 31-31092
31-31092

About Mercury Marine

OEM Part

31-31092 - Race, NLA [ More info ]

Add to shopping cart $7.33 $6.23
10+ In Stock.

#23 17-31537 PIN, DOWEL-PROPELLER GEAR TO PROPELLER SHAFT (1 required per assembly)
DOWEL PIN,NLA 17-31537
 

About Mercury Marine

OEM Part

17-31537 - Dowel Pin, NLA [ More info ]

Add to shopping cart $2.50
7 In Stock.

#24 44-32245 SHAFT, PROPELLER (1 required per assembly)
PROPELLER SHAFT,NLA 44-32245
 

About Mercury Marine

OEM Part

44-32245 - Propeller Shaft, NLA [ More info ]

Add to shopping cart $108.00
2 In Stock.

#25 15-31535A 1 SHIM, BEARING CARRIER TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
SHIM SET 15-31535A 1
 

About Mercury Marine

OEM Part

15-31535A 1 - Shim Set [ More info ]

Add to shopping cart $5.99 $5.93
10+ In Stock.

#26 34955 CARRIER, BEARING-PROPELLER GEAR ROLLER BEARING (1 required per assembly)
CARRIER,NLA 34955
 

About Mercury Marine

OEM Part

34955 - Carrier, NLA [ More info ]

Add to shopping cart $20.00
6 In Stock.

#27 25-31534 "O" RING, BEARING CARRIER TO GEAR HOUSING COVER (1 required per assembly)
25-31534 - O-RING             - Replaced by -8M0214920
25-31534

25-31534 - O-Ring, Bearing Carrier [ More info ]
Unavailable
O RING 25-8M0214920
25-8M0214920

About Mercury Marine

OEM Part

25-8M0214920 - BELL HOUSING O-RING Note: Priced Individually [ More info ]

Add to shopping cart $6.10
Available to Order: Usually ships within 10 days.

#28 32248 RING, BALL BEARING TO GEAR HOUSING COVER (1 required per assembly)
RING,NLA 32248
 

About Mercury Marine

OEM Part

32248 - Ring, NLA [ More info ]

Add to shopping cart $6.00
6 In Stock.

#29 32244A 1 COVER ASSEMBLY, GEAR HOUSING (1 required per assembly)
DISCONTINUED,NLA 32244A 1
 

About Mercury Marine

OEM Part

32244A 1 - Gear Housing Cover Assembly [ More info ]

Add to shopping cart $55.00
1 In Stock.

#30 26-31554 OIL SEAL, GEAR HOUSING COVER (1 required per assembly)
SEAL ,NLA 26-31554
 

About Mercury Marine

OEM Part

26-31554 - Seal, NLA [ More info ]

Add to shopping cart $8.00
10+ In Stock.

#31 30-20840 BEARING, BALL-GEAR HOUSING COVER (1 required per assembly)
BALL BEARING,NLA 30-20840
30-20840

About Mercury Marine

OEM Part

30-20840 - Ball Bearing, NLA [ More info ]

Add to shopping cart $36.67
10+ In Stock.

#32 12-31536 WASHER, GEAR HOUSING COVER TO RETAINER (1 required per assembly)
WASHER,NLA 12-31536
12-31536

About Mercury Marine

OEM Part

12-31536 - Washer, Gear Housing Cover To Retainer, NLA [ More info ]

Add to shopping cart $4.00
10+ In Stock.

#33 32247 RETAINER, GEAR HOUSING COVER (1 required per assembly)
32247 - RETAINER           NLA
 

About Mercury Marine

OEM Part

32247 - Gear Housing Cover Retainer [ More info ]
Unavailable
#34 31643A 1 THRUST HUB AND WASHER ASSEMBLY, PROPELLER SHAFT (1 required per assembly)
HUB ASSY ,NLA 31643A 1
 

About Mercury Marine

OEM Part

31643A 1 - Hub Assembly, NLA [ More info ]

Add to shopping cart $17.78
10+ In Stock.

#35 12-31642 WASHER, CUPPED-THRUST HUB (1 required per assembly)
12-31642 - THRUST WASHER      NLA
 

About Mercury Marine

OEM Part

12-31642 - Thrust Washer, NLA [ More info ]
Unavailable
#36 14-31644 TAB WASHER, PROPELLER SHAFT (1 required per assembly)
TAB WASHER,NLA 14-31644
 

About Mercury Marine

OEM Part

14-31644 - Tab Washer, NLA [ More info ]

Add to shopping cart $8.89
10+ In Stock.

#37 11-31608 NUT, PROPELLER (1 required per assembly)
PROP NUT,NLA 11-31608
11-31608

About Mercury Marine

OEM Part

11-31608 - Prop Nut, NLA [ More info ]

Add to shopping cart $31.11
10+ In Stock.

#38 31640A 1 TRIM TAB, GEAR HOUSING (1 required per assembly)
31640A 1 - TRIM TAB ASSEMBLY  - Replaced by -31640  3
31640A 1

31640A 1 - Trim Tab [ More info ]
Unavailable
31640  3 - TRIM TAB           - Replaced by -31640  4
31640  3

This part has been superseded.

31640 3 - 31640 3 - TRIM TAB [ More info ]
Unavailable
Replaced by -31640 4
31640  4 - TRIM TAB           - Replaced by 97-31640Q 4
31640  4

31640 4 - Anode/Trim Tab [ More info ]
Unavailable
TRIM TAB(ALUM) 97-31640Q 4
97-31640Q 4

About Mercury Marine

OEM Part

97-31640Q4 - Anode/Trim Tab [ More info ]

Add to shopping cart $17.92
10+ In Stock.

ANODEMAGNESIUM
18-6241

About Sierra Marine

OEM Match

18-6241 - Trim Tab Anode, Magnesium, 31640 [ More info ]

Add to shopping cart $24.39 $22.37
3 In Stock.

ANODE ALUMINUM
18-6011A

About Sierra Marine

OEM Match

18-6011A - Trim Tab Anode, Aluminum [ More info ]

Add to shopping cart $16.59 $14.01
Available to Order: Usually ships within 10 days.

TRIM TAB
18-6011

About Sierra Marine

OEM Match

18-6011 - Trim Tab, Zinc, 31640A1 [ More info ]

Add to shopping cart $18.35
5 In Stock.

TRIM TAB(ALUM)   97 31640T 4
97 31640T 4

About Mercury Marine

OEM Part

97-31640T 4 - Trim Tab Anode [ More info ]

Add to shopping cart $17.92
10+ In Stock.

#39 10-49354 SCREW, TRIM TAB TO GEAR HOUSING (2 1/2") (1 required per assembly)
10-49354 - SCREW              - Replaced by 10-41350
 

10-49354 - Screw [ More info ]
Unavailable
SCREW (.437-14 x 2.50) 10-41350
10-41350

About Mercury Marine

OEM Part

10-41350 - Screw [ More info ]

Add to shopping cart $26.33 $22.38
10+ In Stock.

#40 32209 MAGNET, GEAR HOUSING (1 required per assembly)
MAGNET,NLA 32209
 

About Mercury Marine

OEM Part

32209 - Magnet, NLA [ More info ]

Add to shopping cart $6.00
2 In Stock.

#41 10-24878 SCREW, MAGNET TO GEAR HOUSING (1 1/4") (1 required per assembly)
SCREW,NLA 10-24878
 

About Mercury Marine

OEM Part

10-24878 - Screw, NLA [ More info ]

Add to shopping cart $1.67
4 In Stock.

#42 35-32250 SCREEN, FILTER-GEAR HOUSING (1 required per assembly)
SCREEN,NLA 35-32250
 

About Mercury Marine

OEM Part

35-32250 - Screen, NLA [ More info ]

Add to shopping cart $5.00
8 In Stock.

#43 11-34933 NUT, DRIVE SHAFT HOUSING STUDS (8 required per assembly)
11-34933 - NUT (.437-20) Sta  - Replaced by -8M0204653
11-34933

11-34933 - Nut (7/16-20) [ More info ]
Unavailable
NUT 11-8M0204653
11-8M0204653

About Mercury Marine

OEM Part

11-8M0204653 - Prop Lock Nut 7/16-20 , Priced Individually [ More info ]

Add to shopping cart $5.10
8 In Stock.

STAINLESS STEEL LOCKNUT 5
18-3721

About Sierra Marine

OEM Match

18-3721-9 - Lock Nut, 11-34933, 5PK [ More info ]

Add to shopping cart $19.49 $16.48
Available to Order: Usually ships within 10 days.

#44 10-32470 SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 3/4") (1 required per assembly)
SCREW 10-32470
10-32470

About Mercury Marine

OEM Part

10-32470 - Screw - Priced Individually [ More info ]

Add to shopping cart $4.00
Available to Order: Usually ships within 10 days.

ANODE MOUNTING BOLT
18-6245

About Sierra Marine

OEM Match

18-6245 - Screw, 10-32470 [ More info ]

Add to shopping cart $10.17
2 In Stock.

#45 10-31717 SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING (3 1/8") (1 required per assembly)
SCREW,NLA 10-31717
 

About Mercury Marine

OEM Part

10-31717 - Screw, NLA [ More info ]

Add to shopping cart $1.50
10 In Stock.


This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.