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Parts for MerCruiser Alpha One (Gen. II) 1991-1995 Gear Housing, Driveshaft - Counter Rotation

# 26-816575A 3 SEAL KIT, Gear Housing (1 required per assembly)
SEAL KIT Gear Housing 26-816575A 3
26-816575A 3

About Mercury Marine

OEM Part

26-816575A 3 - Seal Kit [ More info ]

Add to shopping cart $107.92
1 In Stock.

SEAL KIT
18-2646-1

About Sierra Marine

OEM Match

18-2646-1 - Seal Kit, 26-816575A3 [ More info ]

Add to shopping cart $88.58
10+ In Stock.

# 1623-815822A 7 GEAR HOUSING ASSEMBLY, Complete (1 required per assembly)
1623-815822A 7 - GEAR HOUSING ASSE  - Replaced by 1623-815822A33
 

1623-815822A 7 - Gear Housing Assembly [ More info ]
Unavailable
1623-815822A33 - GEAR HOUSING ASSE  - Replaced by 1623-815822A47
 

1623-815822A33 - Gear Housing Assembly [ More info ]
Unavailable
1623-815822A47 - GEAR HOUSING ASSE
1623-815822A47

About Mercury Marine

OEM Part

1623-815822A47 - Gear Housing Assembly [ More info ]
Unavailable
90-118-02 - SE116, COUNTER ROTATING LOWER (Replaces Mercruiser Gen II)
90-118-02

Sterndrive Engineering

90-118-02 - SE116 Lower Unit Mercruiser Alpha One Gen II, Counter Rotation, See Detail Page [ More info ]

Add to shopping cart $1275.00 $1275.00
Available to Order

90-116-02 - SE116, LOWER (Replaces Mercruiser Gen II)
90-116-02

Sterndrive Engineering

90-116-02 - SE116 Lower Unit Mercruiser Alpha One Gen II, Std Rotation, See Detail Page [ More info ]

Add to shopping cart $1075.00 $1075.00
Available to Order

# 817275A 4 REBUILD KIT, Water Pump (1 required per assembly)
817275A 4 - REBUILD KIT Water  - Replaced by -817275Q 4
817275A 4

817275A 4 - Water Pump Rebuild Kit [ More info ]
Unavailable
817275Q 4 - REBUILD KIT-W/P    - Replaced by -817275Q05
817275Q 4

817275Q 4 - Water Pump Rebuild Kit [ More info ]
Unavailable
REBUILD KIT-W/P 817275Q05
817275Q05

About Mercury Marine

OEM Part

817275Q05 - Water Pump Rebuild Kit [ More info ]

Add to shopping cart $190.75
In Stock

WATER PUMP KIT
18-3147

About Sierra Marine

OEM Match

18-3147 - Water Pump Kit 817275T4 and 817275Q4 [ More info ]

Add to shopping cart $158.99 $137.43
10+ In Stock.

REBUILD KIT-W/P 817275K05
817275K05

About Mercury Marine

OEM Part

817275K05 - Water Pump Rebuild Kit [ More info ]

Add to shopping cart $190.75
Available to Order: Usually ships within 10 days.

#1 1623-815822A28 GEAR HOUSING ASSEMBLY (1 required per assembly)
GC GENII CR-BASIC 1623-815822A28
1623-815822A28

About Mercury Marine

OEM Part

1623-815822A28 - Gear Housing Assembly [ More info ]

Add to shopping cart $892.86
Available to Order: Usually ships within 10 days.

#1A 821526 FILLER BLOCK (1 required per assembly)
821526 - FILLER BLOCK       - Replaced by -821526001
 

821526 - Filler Block [ More info ]
Unavailable
FILLER BLOCK 821526001
821526001

About Mercury Marine

OEM Part

821526001 - Filler Block [ More info ]

Add to shopping cart $18.30
In Stock

#2 17-37972 1 PIN (1 required per assembly)
PIN 17-37972  1
 

About Mercury Marine

OEM Part

17-37972 1 - Pin [ More info ]

Add to shopping cart $3.50
Available to Order: Usually ships within 10 days.

#3 16-57984 STUD, (.437-14/.437-20 x 2.380) (1 required per assembly)
STUD (.437-14/.437-20 x 16-57984
 

About Mercury Marine

OEM Part

16-57984 - Stud [ More info ]

Add to shopping cart $18.67
Available to Order: Usually ships within 10 days.

#4 10-14834A 1 SCREW (1 required per assembly)
10-14834A 1 - SCREW              - Replaced by 22-67892
 

10-14834A 1 - Screw [ More info ]
Unavailable
22-67892 - SCREW Magnetic     - Replaced by 22-67892A1
22-67892

22-67892 - Plug - Priced Individually [ More info ]
Unavailable
22-67892A1 - ->67892A05 - Replaced by -67892A05
22-67892A1

22-67892A 1 - Drain Plug [ More info ]
Unavailable
22-67892A05 - PLUG KIT Drain (M  - Replaced by 22-67892A06
22-67892A05

22-67892A05 - Drain Plug Kit [ More info ]
Unavailable
22-67892A06 - PLUG KIT Drain -   - Replaced by 22-8M0058389
22-67892A06

22-67892A06 - Drain Plug Kit [ More info ]
Unavailable
SCREW KIT 22-8M0058389
22-8M0058389

About Mercury Marine

OEM Part

22-8M0058389 - Screw Kit - Priced Individually [ More info ]

Add to shopping cart $10.30
10+ In Stock.

DRAIN SCREW PKG/50
18-23751-9

About Sierra Marine

OEM Match

18-23751-9 - Drain Screw , Package of 50 [ More info ]

Add to shopping cart $338.69 $294.70
In Stock

DRAIN PLUG MAGNETIC
18-2375

About Sierra Marine

OEM Match

18-2375 - Plug, 22-67892A1 [ More info ]

Add to shopping cart $6.99
Available to Order: Usually ships within 10 days.

#5 12-19183 WASHER, Fiber, Optional (1 required per assembly) (Fiber)
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
Available to Order: Usually ships within 10 days.

#5 25-805726 O-RING, Rubber, Optional (1 required per assembly) (Rubber)
25-805726 - O-RING Rubber      - Replaced by -8M0204684
25-805726

25-805726 - O-ring, Rubber [ More info ]
Unavailable
O RING 25-8M0204684
25-8M0204684

About Mercury Marine

OEM Part

25-8M0204684 - O-RING FILL/DRAIN SCREW [ More info ]

Add to shopping cart $2.40
2 In Stock.

#6 26-45577 SEAL (1 required per assembly)
26455771 26-45577
26-45577

About Mercury Marine

OEM Part

26-45577 - Seal - Priced Individually [ More info ]

Add to shopping cart $2.77
2 In Stock.

268M0204680 26-455771
26-455771

About Mercury Marine

OEM Part

26-45577 1 - Seal - Priced Individually [ More info ]

Add to shopping cart $4.10
10+ In Stock.

SEAL 26-8M0204680
26-8M0204680

About Mercury Marine

OEM Part

26-8M0204680 - QUAD RING SEAL, ORANGE, Priced Individually [ More info ]

Add to shopping cart $4.10
Available to Order: Usually ships within 10 days.

SEAL RING GASKET 2
18-2944

About Sierra Marine

OEM Match

18-2944-9 - Gasket 26-45577 2-Pack [ More info ]

Add to shopping cart $5.99
Available to Order: Usually ships within 10 days.

#7 17-43044 PIN, Dowel - Without Hole (.375 x .625) (2 required per assembly)
PIN-DOWEL-SOLID 17-43044
17-43044

About Mercury Marine

OEM Part

17-43044 - Pin -Dowel-solid [ More info ]

Add to shopping cart $2.40
4 In Stock.

#8 31-42647A 1 BEARING ASSEMBLY, Roller (1 required per assembly)
BEARING ASSY 31-42647A 1
31-42647A 1

About Mercury Marine

OEM Part

31-42647A 1 - Roller Bearing - Drive Shaft [ More info ]

Add to shopping cart $63.50
In Stock

BEARING PINION
18-1117

About Sierra Marine

OEM Match

18-1117 - Bearing, 387817, 31-42647A1 [ More info ]

Add to shopping cart $53.99 $48.91
3 In Stock.

#9 11-817618 NUT, (.437-20) (1 required per assembly)
11-817618 - NUT (.437-20)      - Replaced by 11-859135
 

11-817618 - Nut (7/16-20) [ More info ]
Unavailable
NUT 11-859135
11-859135

About Mercury Marine

OEM Part

11-859135 - Nut (7/16-20), Priced Individually [ More info ]

Add to shopping cart $5.90
10+ In Stock.

#10 45-816919 DRIVESHAFT (1 required per assembly)
DRIVESHAFT,NLA 45-816919
45-816919

About Mercury Marine

OEM Part

45-816919 - Drive Shaft [ More info ]

Add to shopping cart $132.00
8 In Stock.

#11 15-42637A 1 SHIM SET (AR required per assembly)
158M0063267 15-42637A 1
15-42637A 1

About Mercury Marine

OEM Part

15-42637A 1 - Shim Set [ More info ]

Add to shopping cart $17.77
10+ In Stock.

#12 31-36387A 1 BEARING, Roller (1 required per assembly)
31-36387A 1 - BEARING ASSEMBLY
31-36387A 1

About Mercury Marine

OEM Part

31-36387A 1 - Tapered Roller Bearing [ More info ]
Unavailable
ALPHA BEARING
18-1143

About Sierra Marine

OEM Match

18-1143 - Bearing 31-36387A1 [ More info ]

Add to shopping cart $49.99 $45.72
1 In Stock.

#13 824519 RETAINER (1 required per assembly)
824519 - RETAINER           - Replaced by -8245191
824519

824519 - Retainer [ More info ]
Unavailable
RETAINER 8245191
8245191

About Mercury Marine

OEM Part

824519 1 - Retainer [ More info ]

Add to shopping cart $6.70
Available to Order: Usually ships within 10 days.

RETAINER BRNG RACE PRELOAD
18-2346

About Sierra Marine

OEM Match

18-2346 - Retainer, 824519 1 [ More info ]

Add to shopping cart $4.99 $4.51
1 In Stock.

#14 43-812975A 5 GEAR SET, Includes Pinion/Forward Gears (1 required per assembly)
43828071A1 43-812975A 5
 

About Mercury Marine

OEM Part

43-812975A 5 - Gear Set [ More info ]

Add to shopping cart $108.00
1 In Stock.

GEAR SET 43-828071A 1
43-828071A 1

About Mercury Marine

OEM Part

43-828071A 1 - Gear Set [ More info ]

Add to shopping cart $299.99
9 In Stock.

#15 12-92721 WASHER (1 required per assembly)
WASHER 12-92721
12-92721

About Mercury Marine

OEM Part

12-92721 - Washer, Pinion Gear [ More info ]

Add to shopping cart $1.40 $0.78
5 In Stock.

NUT SET DRIVE SHAFT
18-2359

About Sierra Marine

OEM Match

18-2359 - Nut Kit [ More info ]

Add to shopping cart $5.19 $2.97
Available to Order: Usually ships within 10 days.

PINION NUT WASHER 2
18-2343

About Sierra Marine

OEM Match

18-2343-9 - Washer, 12-92721, 2PK [ More info ]

Add to shopping cart $1.99
Available to Order: Usually ships within 10 days.

#16 11-35921 NUT, (.625-18) (1 required per assembly)
NUT 11-35921
11-35921

About Mercury Marine

OEM Part

11-35921 - Nut, (.625-18) [ More info ]

Add to shopping cart $7.70
10+ In Stock.

PINION NUT
18-3719

About Sierra Marine

OEM Match

18-3719 - Nut, 11-35921, 314730 [ More info ]

Add to shopping cart $4.99 $4.51
3 In Stock.

#17 817276 FACEPLATE (1 required per assembly)
817276 - FACEPLATE          - Replaced by -8172761
817276

817276 - Face Plate, Water Pump [ More info ]
Unavailable
8172761 - FACEPLATE-W/P          Q=T - Replaced by -8M0204709
8172761

817276 1 - Water Pump Face Plate [ More info ]
Unavailable
FACEPLATE-W/P 8M0204709
8M0204709

About Mercury Marine

OEM Part

8M0204709 - Water Pump Faceplate, Outboard [ More info ]

Add to shopping cart $14.00
Available to Order: Usually ships within 10 days.

#18 821759A 2 CARRIER ASSEMBLY (1 required per assembly)
821759A 2 - CARRIER ASSEMBLY   - Replaced by -807929A 1
821759A 2

821759A 2 - Carrier Assembly [ More info ]
Unavailable
807929A 1 - CARRIER ASSEMBLY
807929A 1

About Mercury Marine

OEM Part

807929A 1 - Carrier Assembly [ More info ]
Unavailable
SEAL CARRIER
18-2354

About Sierra Marine

OEM Match

18-2354 - Carrier, 821759A4 [ More info ]

Add to shopping cart $36.99 $33.07
6 In Stock.

#19 26-16977 SEAL, Oil (1 required per assembly)
SEAL Oil 26-16977
26-16977

About Mercury Marine

OEM Part

26-16977 - Seal [ More info ]

Add to shopping cart $21.01
In Stock

OIL SEAL
18-2026

About Sierra Marine

OEM Match

18-2026 - Seal, 321453 [ More info ]

Add to shopping cart $15.99 $15.95
Available to Order: Usually ships within 10 days.

OIL SEAL
18-2013

About Sierra Marine

OEM Match

18-2013 - Seal, 26-16977 [ More info ]

Add to shopping cart $15.99 $14.42
7 In Stock.

#20 26-89238 SEAL, Oil (1 required per assembly)
SEAL Oil 26-89238
26-89238

About Mercury Marine

OEM Part

26-89238 - Seal [ More info ]

Add to shopping cart $20.33
4 In Stock.

OIL SEAL
18-2014

About Sierra Marine

OEM Match

18-2014 - Seal 26-89238, 26F69430 [ More info ]

Add to shopping cart $17.99 $16.59
1 In Stock.

#21 25-90011 O-RING, (2.175 x .175) (1 required per assembly)
25896523 25-90011
25-90011

About Mercury Marine

OEM Part

25-90011 - Drive Shaft Cover O-Ring [ More info ]

Add to shopping cart $1.39
10+ In Stock.

25-896523 - O-RING (2.175 x .  - Replaced by -8M0142854
25-896523

25-896523 - O-ring, (2.175 X .103) [ More info ]
Unavailable
O RING 25-8M0142854
25-8M0142854

About Mercury Marine

OEM Part

25-8M0142854 - O-Ring [ More info ]

Add to shopping cart $1.10
Available to Order: Usually ships within 10 days.

#22 817275A 1 PUMP ASSEMBLY, Water (1 required per assembly)
HOUSING KIT-W/P 817275A 1
817275A 1

About Mercury Marine

OEM Part

817275A 1 - Housing for Water Pump [ More info ]

Add to shopping cart $98.67
In Stock

WATER PUMP HOUSING KIT UPP
18-3571

About Sierra Marine

OEM Match

18-3571 - Water Pump Kit 817275A1 , See Notes on Detail Page [ More info ]

Add to shopping cart $92.99 $83.99
2 In Stock.

WATER PUMP KIT
18-3570

About Sierra Marine

OEM Match

18-3570 - Water Pump Kit 817275A1, A2 [ More info ]

Add to shopping cart $90.99 $82.22
10+ In Stock.

#23 27-43033 1 GASKET (1 required per assembly)
GASKET 27-43033  1
27-43033  1

About Mercury Marine

OEM Part

27-43033 1 - Face Plate To Cover Gasket [ More info ]

Add to shopping cart $10.70
7 In Stock.

#24 27-817277 GASKET (1 required per assembly)
27-817277 - GASKET             - Replaced by 27-8172771
27-817277

27-817277 - Impeller Housing Gasket [ More info ]
Unavailable
GASKET 27-8172771
27-8172771

About Mercury Marine

OEM Part

27-817277 1 - Gasket -Sold each [ More info ]

Add to shopping cart $5.50
4 In Stock.

IMPELLER GASKET 2
18-2566

About Sierra Marine

OEM Match

18-2566-9 - Gasket 27-817277 2-Pack [ More info ]

Add to shopping cart $7.99
4 In Stock.

#25 26-816575A 2 SEAL KIT (1 required per assembly)
SEAL KIT-OBM 26-816575A 2
26-816575A 2

About Mercury Marine

OEM Part

26-816575A 2 - Seal Kit [ More info ]

Add to shopping cart $10.50
10+ In Stock.

FACE SEAL
18-2599

About Sierra Marine

OEM Match

18-2599 - Seal, 26-816575A 2 [ More info ]

Add to shopping cart $7.59
10+ In Stock.

#26 10-816928 SCREW, (M6 x 16) (4 required per assembly)
SCREW (M6 x 16) 10-816928
10-816928

About Mercury Marine

OEM Part

10-816928 - Screw [ More info ]

Add to shopping cart $2.30
1 In Stock.

#27 47-43026 2 IMPELLER (1 required per assembly)
47-43026  2 - IMPELLER           - Replaced by 47-43026T 2
47-43026  2

47-43026 2 - Water Pump Impeller [ More info ]
Unavailable
IMPELLER 47-43026T 2
47-43026T 2

About Mercury Marine

OEM Part

47-43026T 2 - Water Pump Impeller [ More info ]

Add to shopping cart $37.08
10+ In Stock.

IMPELLER
18-3056

About Sierra Marine

OEM Match

18-3056 - Impeller 47-43026-2 [ More info ]

Add to shopping cart $26.99 $23.03
10+ In Stock.

IMPELLER   47 43026Q02
47 43026Q02

About Mercury Marine

OEM Part

47-43026Q02 - Water Pump Impeller [ More info ]

Add to shopping cart $37.08
Available to Order: Usually ships within 10 days.

#28 28-43037 KEY (1 required per assembly)
28-43037 - KEY                - Replaced by 28-8M0032833
28-43037

28-43037 - Key [ More info ]
Unavailable
288M0204723 28-8M0032833
28-8M0032833

About Mercury Marine

OEM Part

28-8M0032833 - Key [ More info ]

Add to shopping cart $4.67
1 In Stock.

KEY 28-8M0204723
28-8M0204723

About Mercury Marine

OEM Part

288M0204723 - KEY Note: Priced Individually [ More info ]

Add to shopping cart $4.20
5 In Stock.

IMPELLER KEY
18-3293

About Sierra Marine

OEM Match

18-3293 - Key, 28-43037 [ More info ]

Add to shopping cart $5.99 $5.45
3 In Stock.

#29 816597A 1 COUPLING ASSEMBLY (1 required per assembly)
COUPLING ASSY 816597A 1
816597A 1

About Mercury Marine

OEM Part

816597A 1 - Coupling Assembly [ More info ]

Add to shopping cart $20.80
2 In Stock.

Water Tube Coupling (early)
96-116-12K

Sterndrive Engineering

96-116-12K - Water Tube Coupling (Early) [ More info ]

Add to shopping cart $10.50 $10.50
Available to Order

#30 25-21836 O-RING, (.796 x .139) (2 required per assembly)
258M0204645 25-21836
25-21836

About Mercury Marine

OEM Part

25-21836 - O-ring, (.796 X .139) [ More info ]

Add to shopping cart $2.30
1 In Stock.

O RING 25-8M0204645
25-8M0204645

About Mercury Marine

OEM Part

25-8M0204645 - O RING [ More info ]

Add to shopping cart $2.30
6 In Stock.

O-RING 5
18-7153

About Sierra Marine

OEM Match

18-7153-9 - (PK5) O-Ring 25-25439 [ More info ]

Add to shopping cart $8.99
Available to Order: Usually ships within 10 days.

#31 23-816583 SLEEVE (1 required per assembly)
SLEEVE 23-816583
23-816583

About Mercury Marine

OEM Part

23-816583 - Sleeve [ More info ]

Add to shopping cart $10.70
3 In Stock.

GUIDE TUBE FOR GEN II
18-3222

About Sierra Marine

OEM Match

18-3222 - Tube, 23-816583 [ More info ]

Add to shopping cart $9.59 $7.28
8 In Stock.

#32 815919A 1 SHIFT SHAFT, Lower (1 required per assembly)
815919A 1 - SHIFT SHAFT Lower
815919A 1

About Mercury Marine

OEM Part

815919A 1 - Shaft Kit - Shift [ More info ]
Unavailable
#33 53-29641 E RING (1 required per assembly)
E RING 53-29641
53-29641

About Mercury Marine

OEM Part

53-29641 - E Ring - Priced Individually [ More info ]

Add to shopping cart $1.70
6 In Stock.

E CLIP - GEN II
18-4295

About Sierra Marine

OEM Match

18-4295-9 - Clip, 53-29461, 2PK [ More info ]

Add to shopping cart $2.59 $2.17
Available to Order: Usually ships within 10 days.

#34 23-67370 SLEEVE (1 required per assembly)
SLEEVE 23-67370
23-67370

About Mercury Marine

OEM Part

23-67370 - Sleeve [ More info ]

Add to shopping cart $10.90
Available to Order: Usually ships within 10 days.

SLEEVE SHIFT SHAFT/GEN II
18-2349

About Sierra Marine

OEM Match

18-2349 - Sleeve, 23-67370 [ More info ]

Add to shopping cart $7.99 $7.23
1 In Stock.

#35 23-815921A 8 BUSHING ASSEMBLY (1 required per assembly)
23-815921A 8 - BUSHING ASSEMBLY   - Replaced by 23-815921A10
 

23-815921A 8 - BUSHING ASSY [ More info ]
Unavailable
23-815921A10 - BUSHING ASSEMBLY   - Replaced by 23-815921A17
 

23-815921A10 - Bushing Assembly [ More info ]
Unavailable
23-815921A17 - BUSHING ASSY       - Replaced by 23-815921A21
 

23-815921A17 - BUSHING ASSY [ More info ]
Unavailable
BUSHING ASSY 23-815921A21
23-815921A21

About Mercury Marine

OEM Part

23-815921A21 - Bushing Assembly [ More info ]

Add to shopping cart $39.92
2 In Stock.

SHIFT ROD BUSHING ASSY
18-2353

About Sierra Marine

OEM Match

18-2353 - Bushing Assembly, 23-815921A21 [ More info ]

Add to shopping cart $40.99 $34.23
In Stock

#36 26-816464 1 SEAL, Oil (1 required per assembly)
26-816464  1 - SEAL Oil           - Replaced by -8M0204708
26-816464  1

26-816464 1 - Seal [ More info ]
Unavailable
SEAL 26-8M0204708
26-8M0204708

About Mercury Marine

OEM Part

26-8M0204708 - Shift Shaft Oil Seal-O/B [ More info ]

Add to shopping cart $16.30
4 In Stock.

OIL SEAL
18-2054

About Sierra Marine

OEM Match

18-2054 - Oil Seal Mercury [ More info ]

Add to shopping cart $11.99 $10.93
10+ In Stock.

#37 25-36318 O-RING, (.799) (2 required per assembly)
258M0214927 25-36318
25-36318

About Mercury Marine

OEM Part

25-36318 - O-ring, (.799) [ More info ]

Add to shopping cart $1.60
10+ In Stock.

25-8M0214927 - O RING @5
 

About Mercury Marine

OEM Part

25-8M0214927 - O RING @5 [ More info ]
Unavailable
O-RING 2
18-7440-1

About Sierra Marine

OEM Match

18-7440-1-9 - O-Ring (PK2) [ More info ]

Add to shopping cart $3.99 $3.37
Available to Order: Usually ships within 10 days.


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