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Parts for Mercury Marine Model 40, 4 HP (Gnat 2 Cylinder) Gear Housing Assembly (Drive Shaft)

# 1648-5559A 2 GEAR HOUSING ASS'Y, COMP. (SHORT SHAFT) (1 required per assembly) SERIAL #9210545 AND BELOW
1648-5559A 2 - GEAR HSG ASY-B    O - Replaced by 1648-5559A10
 

This part has been superseded.

1648-5559A 2 - 1648-5559A 2 - GEAR HSG ASY-B O [ More info ]
Unavailable
Replaced by 1648-5559A10
1648-5559A10 - GEAR HOUSING      O - Replaced by 1648-7811A 5
 

This part has been superseded.

1648-5559A10 - 1648-5559A10 - GEAR HOUSING O [ More info ]
Unavailable
Replaced by 1648-7811A 5
1648-7811A 5 - GEAR HOUSING ASSE O - Replaced by 1648-7811A20
 

This part has been superseded.

1648-7811A 5 - 1648-7811A 5 - GEAR HOUSING ASSE O [ More info ]
Unavailable
Replaced by 1648-7811A20
1648-7811A20 - GEAR HOUSING ASSE O NLA
 

About Mercury Marine

OEM Part

1648-7811A20 - GEAR HOUSING ASSE O NLA [ More info ]
Unavailable
# 1648-5559A 4 GEAR HOUSING ASS'Y, COMP. (LONG SHAFT) (1 required per assembly) SERIAL #9210545 AND BELOW
1648-5559A 4 - GEAR HOUSING ASSY O - Replaced by 1648-5559A11
 

This part has been superseded.

1648-5559A 4 - 1648-5559A 4 - GEAR HOUSING ASSY O [ More info ]
Unavailable
Replaced by 1648-5559A11
1648-5559A11 - GEAR HOUSING      O - Replaced by 1648-7811A 6
 

This part has been superseded.

1648-5559A11 - 1648-5559A11 - GEAR HOUSING O [ More info ]
Unavailable
Replaced by 1648-7811A 6
1648-7811A 6 - GEAR HOUSING ASSE O - Replaced by 1648-7811A21
 

This part has been superseded.

1648-7811A 6 - 1648-7811A 6 - GEAR HOUSING ASSE O [ More info ]
Unavailable
Replaced by 1648-7811A21
1648-7811A21 - GEAR HOUSING ASSE O NLA
 

About Mercury Marine

OEM Part

1648-7811A21 - GEAR HOUSING ASSE O NLA [ More info ]
Unavailable
# 1648-5559A10 GEAR HOUSING ASS'Y, COMP. (SHORT SHAFT) (1 required per assembly) SERIAL #9210546 AND UP
# 1648-5559A11 GEAR HOUSING ASS'Y, COMP. (LONG SHAFT) (1 required per assembly) SERIAL #9210546 AND UP
#1 1648-5559A 3 GEAR HOUSING ASSEMBLY, BASIC (1 required per assembly)
1648-5559A 3 - GEAR HOUSING ASSY O - Replaced by 1648-7381A 1
 

This part has been superseded.

1648-5559A 3 - 1648-5559A 3 - GEAR HOUSING ASSY O [ More info ]
Unavailable
Replaced by 1648-7381A 1
1648-7381A 1 - GEAR HOUSING      O NLA
 

About Mercury Marine

OEM Part

1648-7381A 1 - GEAR HOUSING O NLA [ More info ]
Unavailable
#2 16-68927 STUD, GEAR HOUSING (2 1/8") - SHORT SHAFT (1 required per assembly)
16-68927 - STUD              O NLA
 

About Mercury Marine

OEM Part

16-68927 - STUD O NLA [ More info ]
Unavailable
#2 16-75321 STUD, GEAR HOUSING (7 1/4") - LONG SHAFT (1 required per assembly)
16-75321 - STUD              O NLA
 

About Mercury Marine

OEM Part

16-75321 - STUD O NLA [ More info ]
Unavailable
#3 16-68928 STUD, WATER PUMP (2 1/4') (2 required per assembly)
STUD,NLA 16-68928
 

About Mercury Marine

OEM Part

16-68928 - Stud, NLA [ More info ]

Add to shopping cart $12.50
5 in stock. Explain stock levels

#4 16-70741 STUD, WATER PUMP (1 1/2") (1 required per assembly)
16-70741 - STUD              O NLA
 

About Mercury Marine

OEM Part

16-70741 - STUD O NLA [ More info ]
Unavailable
#5 31-23101 ROLLER BEARING, GEAR HOUSING - LOWER (1 required per assembly)
BEARING ,NLA 31-23101
 

About Mercury Marine

OEM Part

31-23101 - Bearing, NLA [ More info ]

Add to shopping cart $10.00
10+ in stock. Explain stock levels

#6 68978 COUPLING, DRIVE SHAFT/PINION (1 required per assembly)
COUPLING,NLA 68978
 

About Mercury Marine

OEM Part

68978 - Coupling, NLA [ More info ]

Add to shopping cart $30.00
2 in stock. Explain stock levels

#7 31-69496 ROLLER BEARING, GEAR HOUSING - UPPER (1 required per assembly)
31-69496 - ROLLER BEARING-B  O NLA
 

About Mercury Marine

OEM Part

31-69496 - ROLLER BEARING-B O NLA [ More info ]
Unavailable
#8 43-68981 PINION GEAR (1 required per assembly)
PINION,4HP,NLA 43-68981
 

About Mercury Marine

OEM Part

43-68981 - Pinion, 4HP, NLA [ More info ]

Add to shopping cart $50.00
10+ in stock. Explain stock levels

#9 31-68945 THRUST BEARING, PINION GEAR (1 required per assembly)
BEARING,NLA 31-68945
 

About Mercury Marine

OEM Part

31-68945 - Bearing, NLA [ More info ]

Add to shopping cart $10.00
1 in stock. Explain stock levels

#10 12-71557 WASHER, THRUST BEARING (1 required per assembly)
WASHER,NLA 12-71557
 

About Mercury Marine

OEM Part

12-71557 - Washer, NLA [ More info ]

Add to shopping cart $5.50
9 in stock. Explain stock levels

#11 45-68983 DRIVE SHAFT (SHORT SHAFT) (1 required per assembly)
DRIVE SHAFT,NLA 45-68983
 

About Mercury Marine

OEM Part

45-68983 - Drive Shaft, NLA [ More info ]

Add to shopping cart $125.00
1 in stock. Explain stock levels

#11 45-75310 DRIVE SHAFT (LONG SHAFT) (1 required per assembly)
45-75310 - DRIVE SHAFT       O NLA
 

About Mercury Marine

OEM Part

45-75310 - DRIVE SHAFT O NLA [ More info ]
Unavailable
#12 28-56655 KEY, IMPELLER DRIVE (1 required per assembly)
28-56655 - KEY               O - Replaced by 28-8M0032835
 

This part has been superseded.

28-56655 - 28-56655 - KEY O [ More info ]
Unavailable
Replaced by 28-8M0032835
KEY 28-8M0032835
28-8M0032835

About Mercury Marine

OEM Part

28-8M0032835 - Key [ More info ]

Add to shopping cart $4.30
10+ in stock. Explain stock levels

#13 27-68939 GASKET, WATER PUMP - LOWER (1 required per assembly)
27-68939 - GASKET            O NLA
 

About Mercury Marine

OEM Part

27-68939 - GASKET O NLA [ More info ]
Unavailable
#14 46-68986A 1 WATER PUMP HOUSING ASSEMBLY (1 required per assembly)
46-68986A 1 - HOUSING ASSY-B    O - Replaced by 46-90844A 1
 

This part has been superseded.

46-68986A 1 - 46-68986A 1 - HOUSING ASSY-B O [ More info ]
Unavailable
Replaced by 46-90844A 1
46-90844A 1 - HOUSING ASSEMBLY  O NLA
46-90844A 1

About Mercury Marine

OEM Part

46-90844A 1 - HOUSING ASSEMBLY O NLA [ More info ]
Unavailable
#15 26-77066 OIL SEAL, WATER PUMP (1 required per assembly)
2696063 26-77066
 

About Mercury Marine

OEM Part

26-77066 - Seal - Priced Individually [ More info ]

Add to shopping cart $5.90
10+ in stock. Explain stock levels

26897153 26-96063
26-96063

About Mercury Marine

OEM Part

26-96063 - Seal - Priced Individually [ More info ]

Add to shopping cart $9.00
10+ in stock. Explain stock levels

SEAL-OIL Note: must be ordered in multiples of 3 26-897153
26-897153

About Mercury Marine

OEM Part

26-897153 - Oil Seal - Priced Individually [ More info ]

Add to shopping cart $12.30
Available to order: Usually ships within 8 days. Explain stock levels

Oil Seal
18-2010

About Sierra Marine

OEM Match

18-2010 - Seal 26-96063 [ More info ]

Add to shopping cart $11.99 $8.78
4 in stock. Explain stock levels

#16 70977 INSERT, WATER PUMP (1 required per assembly)
70977T 70977
70977

About Mercury Marine

OEM Part

70977 - Insert [ More info ]

Add to shopping cart $6.50
2 in stock. Explain stock levels

INSERT 70977T
70977T

About Mercury Marine

OEM Part

70977T - Insert [ More info ]

Add to shopping cart $8.90
6 in stock. Explain stock levels

Insert Cup
18-3113

About Sierra Marine

OEM Match

18-3113 - Cup 70977 [ More info ]

Add to shopping cart $7.99 $5.84
1 in stock. Explain stock levels

#17 12-56681 WASHER, WATER PUMP (1 required per assembly)
WASHER (.203 x .500 x . 12-56681
 

About Mercury Marine

OEM Part

12-56681 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.40
6 in stock. Explain stock levels

#18 25-74138 QUAD SEAL, WATER PUMP (1 required per assembly)
O RING,NLA 25-74138
 

About Mercury Marine

OEM Part

25-74138 - O-Ring - Priced Individually [ More info ]

Add to shopping cart $15.00
10+ in stock. Explain stock levels

#19 47-68988 IMPELLER (1 required per assembly)
47-68988 - IMPELLER-B @2     O - Replaced by 47-89980
 

This part has been superseded.

47-68988 - 47-68988 - IMPELLER-B @2 O [ More info ]
Unavailable
Replaced by 47-89980
IMPELLER 47-89980
47-89980

About Mercury Marine

OEM Part

47-89980 - Impeller [ More info ]

Add to shopping cart $26.16
6 in stock. Explain stock levels

Impeller
18-3054

About Sierra Marine

OEM Match

18-3054 - Impeller 47-89980 [ More info ]

Add to shopping cart $17.99 $13.25
10+ in stock. Explain stock levels

#20 68955 FACE PLATE, WATER PUMP (1 required per assembly)
FACE PLATE,NLA 68955
68955

About Mercury Marine

OEM Part

68955 - Water Pump Face Plate, NLA [ More info ]

Add to shopping cart $11.50
10+ in stock. Explain stock levels

#21 46-68984A 1 WATER PUMP COVER ASSEMBLY (1 required per assembly)
46-68984A 1 - COVER ASSEMBLY Wa O - Replaced by 46-90846A 1
 

This part has been superseded.

46-68984A 1 - 46-68984A 1 - COVER ASSEMBLY Wa O [ More info ]
Unavailable
Replaced by 46-90846A 1
46-90846A 1 - COVER ASSEMBLY Wa O - Replaced by 46-95965A 2
 

This part has been superseded.

46-90846A 1 - 46-90846A 1 - COVER ASSEMBLY Wa O [ More info ]
Unavailable
Replaced by 46-95965A 2
46-95965A 2 - COVER ASSEMBLY Wa O NLA
46-95965A 2

About Mercury Marine

OEM Part

46-95965A 2 - COVER ASSEMBLY Wa O NLA [ More info ]
Unavailable
#22 26-30913 OIL SEAL, WATER PUMP COVER (1 required per assembly)
SEAL Oil 26-30913
26-30913

About Mercury Marine

OEM Part

26-30913 - Seal - Priced Individually [ More info ]

Add to shopping cart $17.20 $14.73
4 in stock. Explain stock levels

Oil Seal
18-0516

About Sierra Marine

OEM Match

18-0516 - Seal, 26-30913 [ More info ]

Add to shopping cart $9.49 $7.33
3 in stock. Explain stock levels

#23 12-36554 WASHER, WATER TUBE SEAL (1 required per assembly)
12-36554 - WASHER @3         O - Replaced by 23-86214
 

This part has been superseded.

12-36554 - 12-36554 - WASHER @3 O [ More info ]
Unavailable
Replaced by 23-86214
23-86214 - BEARING           O - Replaced by 23-13127
 

This part has been superseded.

23-86214 - 23-86214 - BEARING O [ More info ]
Unavailable
Replaced by 23-13127
SPACER Note: must be ordered in multiples of 2 23-13127
23-13127

About Mercury Marine

OEM Part

23-13127 - Spacer - Priced Individually [ More info ]

Add to shopping cart $3.80
10+ in stock. Explain stock levels

#24 26-36558 SEAL, WATER TUBE (1 required per assembly)
SEAL Note: must be ordered in multiples of 10 26-36558
26-36558

About Mercury Marine

OEM Part

26-36558 - Seal - Priced Individually [ More info ]

Add to shopping cart $4.00
10+ in stock. Explain stock levels

#24A 23-75146 SLEEVE, WATER TUBE GUIDE (1 required per assembly)
23-75146 - SLEEVE-B          O - Replaced by 23-31792
 

This part has been superseded.

23-75146 - 23-75146 - SLEEVE-B O [ More info ]
Unavailable
Replaced by 23-31792
23-31792 - SLEEVE            O - Replaced by 23-31792T
 

This part has been superseded.

23-31792 - 23-31792 - SLEEVE O [ More info ]
Unavailable
Replaced by 23-31792T
SLEEVE Note: must be ordered in multiples of 5 23-31792T
23-31792T

About Mercury Marine

OEM Part

23-31792T - Sleeve - Priced Individually [ More info ]

Add to shopping cart $12.20
10+ in stock. Explain stock levels

#25 25-30526 RING, RUBBER - DRIVE SHAFT (1 required per assembly)
RING 25-30526
25-30526

About Mercury Marine

OEM Part

25-30526 - O-Ring - Priced Individually [ More info ]

Add to shopping cart $1.90
10+ in stock. Explain stock levels

#26 12-30164 WASHER, WATER PUMP STUDS (3 required per assembly)
WASHER (.192 x .375 x . 12-30164
 

About Mercury Marine

OEM Part

12-30164 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.70
10+ in stock. Explain stock levels

#27 11-45812 NUT, WATER PUMP STUDS (3 required per assembly)
11-45812 - NUT (#10-32) Stai O - Replaced by 11-859124
 

This part has been superseded.

11-45812 - 11-45812 - NUT (#10-32) Stai O [ More info ]
Unavailable
Replaced by 11-859124
NUT (#10-32) Stainless 11-859124
 

About Mercury Marine

OEM Part

11-859124 - Nut - Priced Individually [ More info ]

Add to shopping cart $13.25
10 in stock. Explain stock levels

#28 72418 SHIFT SHAFT (SHORT SHAFT) (1 required per assembly)
72418 - SHIFT SHAFT       O - Replaced by -72418T
 

This part has been superseded.

72418 - 72418 - SHIFT SHAFT O [ More info ]
Unavailable
Replaced by -72418T
72418T - SHIFT SHAFT       O NLA
 

About Mercury Marine

OEM Part

72418T - SHIFT SHAFT O NLA [ More info ]
Unavailable
#28 75307 SHIFT SHAFT (LONG SHAFT) (1 required per assembly)
75307 - SHIFT SHAFT       O NLA
 

About Mercury Marine

OEM Part

75307 - SHIFT SHAFT O NLA [ More info ]
Unavailable
#29 10-28653 SCREW, VENT - GEAR HOUSING (1/4") (1 required per assembly)
SCREW (#10-32 x 0.25) 10-28653
10-28653

About Mercury Marine

OEM Part

10-28653 - Screw - Priced Individually [ More info ]

Add to shopping cart $2.00
10+ in stock. Explain stock levels

#30 12-20262 WASHER, VENT SCREW (1 required per assembly)
19643 12-20262
 

About Mercury Marine

OEM Part

12-20262 - Washer, Priced Individually [ More info ]

Add to shopping cart $1.00
4 in stock. Explain stock levels

SEAL Note: must be ordered in multiples of 15 19643
19643

About Mercury Marine

OEM Part

19643 - Seal - Priced Individually [ More info ]

Add to shopping cart $1.00
10+ in stock. Explain stock levels

#31 10-28634 SCREW, GREASE FILLER (1 required per assembly)
10-28634 - SCREW (.375-16)   O - Replaced by 10-79953
10-28634

This part has been superseded.

10-28634 - 10-28634 - SCREW (.375-16) O [ More info ]
Unavailable
Replaced by 10-79953
10-79953 - SCREW (.375-16 x  O - Replaced by 10-79953A 2
10-79953

This part has been superseded.

10-79953 - 10-79953 - SCREW (.375-16 x O [ More info ]
Unavailable
Replaced by 10-79953A 2
10-79953A 2 - SCREW KIT (.375-1 O - Replaced by 10-79953Q 2
10-79953A 2

This part has been superseded.

10-79953A 2 - 10-79953A 2 - SCREW KIT (.375-1 O [ More info ]
Unavailable
Replaced by 10-79953Q 2
10-79953Q 2 - SCREW KIT (.375-1 O - Replaced by 10-79953Q04
10-79953Q 2

This part has been superseded.

10-79953Q 2 - 10-79953Q 2 - SCREW KIT (.375-1 O [ More info ]
Unavailable
Replaced by 10-79953Q04
SCREW KIT Drain 10-79953Q04
10-79953Q04

About Mercury Marine

OEM Part

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

Add to shopping cart $5.80
10+ in stock. Explain stock levels

DRAIN PLUG
18-2244

About Sierra Marine

OEM Match

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

Add to shopping cart $2.99 $2.07
10+ in stock. Explain stock levels

SCREW-DRAIN Note: must be ordered in multiples of 2   10 79953K04
10 79953K04

About Mercury Marine

OEM Part

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

Add to shopping cart $5.80
10+ in stock. Explain stock levels

#32 12-20260 WASHER, GREASE FILLER SCREW (1 required per assembly)
12-20260 - WASHER            O - Replaced by 12-19183
12-20260

This part has been superseded.

12-20260 - 12-20260 - WASHER O [ More info ]
Unavailable
Replaced by 12-19183
12-19183 - WASHER Fiber      O - Replaced by 12-19183  2
12-19183

This part has been superseded.

12-19183 - 12-19183 - WASHER Fiber O [ More info ]
Unavailable
Replaced by 12-19183 2
12-19183  2 - WASHER            O - Replaced by 12-19183  3
12-19183  2

This part has been superseded.

12-19183 2 - 12-19183 2 - WASHER O [ More info ]
Unavailable
Replaced by 12-19183 3
SEAL 12-19183  3
12-19183  3

About Mercury Marine

OEM Part

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

Add to shopping cart $1.00
10+ in stock. Explain stock levels

DRAIN GASKET
18-2945

About Sierra Marine

OEM Match

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

Add to shopping cart $2.78 $1.52
10+ in stock. Explain stock levels

SEAL (4) Note: must be ordered in multiples of 2   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 $5.10
10+ in stock. Explain stock levels

SEAL (4) Note: must be ordered in multiples of 2   12 19183K02
12 19183K02

About Mercury Marine

OEM Part

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

Add to shopping cart $5.10
10+ in stock. Explain stock levels

#- 27-68938A75 GASKET SET
27-68938A75 - GASKET SET        O - Replaced by 27-77586A78
 

This part has been superseded.

27-68938A75 - 27-68938A75 - GASKET SET O [ More info ]
Unavailable
Replaced by 27-77586A78
27-77586A78 - GASKET SET        O NLA
 

About Mercury Marine

OEM Part

27-77586A78 - GASKET SET O NLA [ More info ]
Unavailable