Logo

Parts for MerCruiser R / MR / Alpha One (Transom Assembly) 1983-1990 Gear Housing, Propeller Shaft - R

#-- 1623-8951A43 GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly)
GC ALPHA 1623-8951A43
1623-8951A43

About Mercury Marine

OEM Part

1623-8951A43 - Gearcase Alpha [ More info ]

Add to shopping cart $2,128.57
Available to order: Usually ships within 8 days. Explain stock levels

Gear Housing Assy
18-2443

About Sierra Marine

OEM Match

18-2443 - Lower Assembly, [ More info ]

Add to shopping cart $2,238.00 $1,806.04
1 in stock. Explain stock levels

90-106-02 - SE106, LOWER (Replaces Mercruiser Alpha One)
90-106-02

Sterndrive Engineering

90-106-02 - SE106 Lower Unit Mercruiser Alpha One, Standard Rotation - Special Order - No Returns [ More info ]

$795.00 $795.00
Call to order Explain stock levels

#1 1623-5356A 4 GEAR HOUSING ASSEMBLY (1 required per assembly)
GEAR HOUSING ASSEMBLY 1623-5356A 4
1623-5356A 4

About Mercury Marine

OEM Part

1623-5356A 4 - Gearcase MC-I - Basic [ More info ]

Add to shopping cart $1,193.36 $148.50
10+ in stock. Explain stock levels

Lower Gear Housing
18-2402

About Sierra Marine

OEM Match

18-2402 - Housing, 1623-5356A4 [ More info ]

Add to shopping cart $1,362.34
2 in stock. Explain stock levels

#53 18-46950 1 COTTER PIN, CLUTCH ACTUATING SHAFT (1 required per assembly)
PIN-COTTER 18-46950  1
 

About Mercury Marine

OEM Part

18-46950 1 - Cotter Pin [ More info ]

Add to shopping cart $3.30
10+ in stock. Explain stock levels

#57 NSS NOT SOLD SEPARATE, COMPRESSION (1 required per assembly) (Replacement Spool Assembly 818349T1)
NSS - NOT SOLD SEPARATE O
 

About Mercury Marine

OEM Part

NSS - NOT SOLD SEPARATE O [ More info ]
Unavailable
#60 76865 CRANK, Shift (1 required per assembly)
8M2009865 76865
76865

About Mercury Marine

OEM Part

76865 - Shifter Crank [ More info ]

Add to shopping cart $40.00
10+ in stock. Explain stock levels

CRANK-SHIFTER 8M2009865
 

About Mercury Marine

OEM Part

8M2009865 - Shifter Crank [ More info ]

Add to shopping cart $83.92
Available to order: Usually ships within 8 days. Explain stock levels

Shift Crank
18-2130

About Sierra Marine

OEM Match

18-2130 - Shift Crank 76865 [ More info ]

Add to shopping cart $82.76 $66.58
1 in stock. Explain stock levels

#61 15-47397A 1 SHIM SET, BEARING OUTER RACE (AR required per assembly)
SHIM SET 15-47397A 1
15-47397A 1

About Mercury Marine

OEM Part

15-47397A 1 - Shim Set [ More info ]

Add to shopping cart $13.50 $9.12
10+ in stock. Explain stock levels

Shims
18-2285

About Sierra Marine

OEM Match

18-2285 - Shim 15-47397A1 [ More info ]

Add to shopping cart $18.12 $12.54
Available to order: Usually ships within 8 days. Explain stock levels

#63 31-30895T BEARING, Needle, FORWARD GEAR (1 required per assembly)
BEARING Needle 31-30895T
31-30895T

About Mercury Marine

OEM Part

31-30895T - Bearing [ More info ]

Add to shopping cart $17.90 $15.33
10 in stock. Explain stock levels

Needle Roller Bearing
18-1157

About Sierra Marine

OEM Match

18-1157 - Bearing 31-30895 [ More info ]

Add to shopping cart $19.84 $15.38
6 in stock. Explain stock levels

#64 31-35928T 1 BEARING ASSEMBLY, Tapered Roller (1 required per assembly)
BEARING SET 31-35928T 1
31-35928T 1

About Mercury Marine

OEM Part

31-35928T 1 - Bearing Set [ More info ]

Add to shopping cart $75.92 $54.66
10+ in stock. Explain stock levels

Tapered Roller Bearing
18-1159

About Sierra Marine

OEM Match

18-1159 - Bearing 31-35928A1 [ More info ]

Add to shopping cart $78.43 $60.96
2 in stock. Explain stock levels

#65 52-853594T CLUTCH, SLIDING (1 required per assembly)
CLUTCH 52-853594T
52-853594T

About Mercury Marine

OEM Part

52-853594T - Clutch [ More info ]

Add to shopping cart $227.33 $152.77
10 in stock. Explain stock levels

Sliding Clutch
18-2202

About Sierra Marine

OEM Match

18-2202 - Clutch, 52-66063, 52-853 [ More info ]

Add to shopping cart $198.34
1 in stock. Explain stock levels

#66 17-30632 PIN, Cross, CLUTCH TO PROPELLER CHAFT (1 required per assembly)
178M0020941 17-30632
17-30632

About Mercury Marine

OEM Part

17-30632 - Pin - Cross - Priced Individually [ More info ]

Add to shopping cart $1.50
10+ in stock. Explain stock levels

178M0084681 17-8M0020941
17-8M0020941

About Mercury Marine

OEM Part

17-8M0020941 - Pin - Priced Individually [ More info ]

Add to shopping cart $2.30
5 in stock. Explain stock levels

17-8M0084681 - PIN Cross         O - Replaced by 17-8M0100263
17-8M0084681

This part has been superseded.

17-8M0084681 - 17-8M0084681 - PIN Cross O [ More info ]
Unavailable
Replaced by 17-8M0100263
PIN Note: must be ordered in multiples of 3 17-8M0100263
17-8M0100263

About Mercury Marine

OEM Part

17-8M0100263 - Pin - Priced Individually [ More info ]

Add to shopping cart $3.30
2 in stock. Explain stock levels

Cross Pin
18-2357

About Sierra Marine

OEM Match

18-2357 - Pin, 17-30632 [ More info ]

Add to shopping cart $3.49 $2.71
1 in stock. Explain stock levels

#67 24-30893 SPRING, RETAINER - CROSS PIN (1 required per assembly)
SPRING Note: must be ordered in multiples of 2 24-30893
24-30893

About Mercury Marine

OEM Part

24-30893 - Spring - Priced Individually [ More info ]

Add to shopping cart $1.90 $1.14
10+ in stock. Explain stock levels

Spring  Clutch Cross Pin
18-2348

About Sierra Marine

OEM Match

18-2348-9 - Spring, 24-30893, 2PK [ More info ]

Add to shopping cart $8.98 $6.46
3 in stock. Explain stock levels

#68 44-824110 PROPELLER SHAFT (1 required per assembly)
448M0140440 44-824110
44-824110

About Mercury Marine

OEM Part

44-824110 - Prop Shaft [ More info ]

Add to shopping cart $589.08 $141.38
10+ in stock. Explain stock levels

Prop Shaft
18-2166

About Sierra Marine

OEM Match

18-2166 - Shaft 44-66060 [ More info ]

Add to shopping cart $639.66 $507.48
3 in stock. Explain stock levels

#69 43-92320T GEAR, Reverse (1 required per assembly)
REVERSE GEAR 43-92320T
43-92320T

About Mercury Marine

OEM Part

43-92320T - Reverse Gear [ More info ]

Add to shopping cart $306.75 $67.50
4 in stock. Explain stock levels

Reverse Gear
18-2409

About Sierra Marine

OEM Match

18-2409 - Gear, 43-92320T [ More info ]

Add to shopping cart $342.38
2 in stock. Explain stock levels

#70 35915 THRUST RING, BEARING CARRIER (1 required per assembly)
THRUST RING 35915
35915

About Mercury Marine

OEM Part

35915 - Thurst Ring [ More info ]

Add to shopping cart $18.00
10+ in stock. Explain stock levels

Thrust Ring Bearing
18-3759

About Sierra Marine

OEM Match

18-3759 - Thrust Ring, 35915 [ More info ]

Add to shopping cart $23.49
1 in stock. Explain stock levels

#71 30-88957T BEARING, Ball, REVERSE GEAR (1 required per assembly)
BEARING-BALL 30-88957T
30-88957T

About Mercury Marine

OEM Part

30-88957T - Ball Bearing [ More info ]

Add to shopping cart $58.20 $23.28
5 in stock. Explain stock levels

Ball Bearing
18-1155

About Sierra Marine

OEM Match

18-1155 - Bearing 30-88957T [ More info ]

Add to shopping cart $50.51 $39.96
2 in stock. Explain stock levels

#72 15-97166 SHIM, THRUST WASHER TO GEAR HOUSING (1 required per assembly)
SHIM 15-97166
 

About Mercury Marine

OEM Part

15-97166 - Shim [ More info ]

Add to shopping cart $6.40
10+ in stock. Explain stock levels

#73 25-31534 O-RING, BEARING CARRIER (1 required per assembly)
O RING Note: must be ordered in multiples of 4 25-31534
25-31534

About Mercury Marine

OEM Part

25-31534 - O-Ring Note: - Priced Individually [ More info ]

Add to shopping cart $4.60 $3.10
10+ in stock. Explain stock levels

O-Ring
18-7159

About Sierra Marine

OEM Match

18-7159-9 - (PK5) O-Ring 25-31534 [ More info ]

Add to shopping cart $20.55 $14.02
10+ in stock. Explain stock levels

#74 73020A14 CARRIER ASSEMBLY, Bearing (1 required per assembly)
CARRIER ASSY 73020A14
73020A14

About Mercury Marine

OEM Part

73020A14 - Bearing Carrier Assembly [ More info ]

Add to shopping cart $90.00
10+ in stock. Explain stock levels

Bearing Carrier
18-2191

About Sierra Marine

OEM Match

18-2191 - Carrier, 73020A14 [ More info ]

Add to shopping cart $117.00 $95.67
In stock Explain stock levels

#75 31-30956T BEARING, Needle, BEARING CARRIER (1 required per assembly)
BEARING Needle 31-30956T
31-30956T

About Mercury Marine

OEM Part

31-30956T - Bearing [ More info ]

Add to shopping cart $17.70 $8.50
10+ in stock. Explain stock levels

Needle Roller Bearing
18-1158

About Sierra Marine

OEM Match

18-1158 - Bearing 31-30956, 387247 [ More info ]

Add to shopping cart $14.16 $10.75
7 in stock. Explain stock levels

#76 26-76868 SEAL, BEARING CARRIER (2 required per assembly)
SEAL Note: must be ordered in multiples of 5 26-76868
26-76868

About Mercury Marine

OEM Part

26-76868 - Seal - Priced Individually [ More info ]

Add to shopping cart $14.70
10+ in stock. Explain stock levels

Oil Seal
18-2002

About Sierra Marine

OEM Match

18-2002 - Seal 26-76868, 320862 [ More info ]

Add to shopping cart $10.99 $8.07
10+ in stock. Explain stock levels

#77 28-30281 KEY, LOCATING - BEARING CARRIER (1 required per assembly)
KEY Note: must be ordered in multiples of 5 28-30281
28-30281

About Mercury Marine

OEM Part

28-30281 - Key - Priced Individually [ More info ]

Add to shopping cart $1.10
10+ in stock. Explain stock levels

#78 14-79447 TAB WASHER, GEAR HOUSING COVER (1 required per assembly)
WASHER-TAB Note: must be ordered in multiples of 2 14-79447
14-79447

About Mercury Marine

OEM Part

14-79447 - Tab Washer - Priced Individually [ More info ]

Add to shopping cart $10.40 $7.02
10+ in stock. Explain stock levels

TAB WASHER
18-2299

About Sierra Marine

OEM Match

18-2299 - Shim 14-79447 [ More info ]

Add to shopping cart $9.99 $7.21
3 in stock. Explain stock levels

#79 79448 RETAINER, GEAR HOUSING (1 required per assembly)
8M2011027 79448
79448

About Mercury Marine

OEM Part

79448 - Retainer [ More info ]

Add to shopping cart $18.00
1 in stock. Explain stock levels

ORD 8M2000347 8M2011027
8M2011027

About Mercury Marine

OEM Part

8M2011027 - Bearing Car Retaining Nut [ More info ]

Add to shopping cart $31.25
2 in stock. Explain stock levels

Spanner Nut
18-3751

About Sierra Marine

OEM Match

18-3751 - Nut, 79448 [ More info ]

Add to shopping cart $24.23 $18.93
4 in stock. Explain stock levels

#80 12-835467 1 THRUST HUB (FOR USE W/ BLACK MAX PROPELLERS) (1 required per assembly)
12835467Q01 12-835467  1
12-835467  1

About Mercury Marine

OEM Part

12-835467 1 - Thrust Washer [ More info ]

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

THRUSTWASHERNote: must be ordered in multiples of 2 12-835467Q01
12-835467Q01

About Mercury Marine

OEM Part

12-835467Q01 - Thrust Washer - Priced Individually [ More info ]

Add to shopping cart $29.41 $19.76
10+ in stock. Explain stock levels

Thrust Washer
18-4220

About Sierra Marine

OEM Match

18-4220 - Washer, 12-835467 1 [ More info ]

Add to shopping cart $29.16 $23.69
10+ in stock. Explain stock levels

THRUSTWASHERNote: must be ordered in multiples of 2   12835467K01
 

About Mercury Marine

OEM Part

12-835467K01 - Thrust Washer - Priced Individually [ More info ]

Add to shopping cart $29.41 $19.76
8 in stock. Explain stock levels

#80 56292A 4 THRUST HUB (FOR USE W/M/C I PROPELLERS) (1 required per assembly)
56292Q04 56292A 4
 

About Mercury Marine

OEM Part

56292A 4 - Thrust Washer Assembly [ More info ]

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

THRUSTWASHERNote: must be ordered in multiples of 2 56292Q04
56292Q04

About Mercury Marine

OEM Part

56292Q04 - Thrust Washer - Priced Individually [ More info ]

Add to shopping cart $71.44
1 in stock. Explain stock levels

#81 12-31211A 3 WASHER, PLINED - PROPELLER SHAFT (1 required per assembly)
12-31211A 3 - WASHER            O - Replaced by 12-31211Q03
12-31211A 3

This part has been superseded.

12-31211A 3 - 12-31211A 3 - WASHER O [ More info ]
Unavailable
Replaced by 12-31211Q03
WASHER Note: must be ordered in multiples of 2 12-31211Q03
12-31211Q03

About Mercury Marine

OEM Part

12-31211Q03 - Washer - Priced Individually [ More info ]

Add to shopping cart $10.49
4 in stock. Explain stock levels

Brass Castle Washer Merc
18-3714

About Sierra Marine

OEM Match

18-3714 - Washer, 12-31211A2 [ More info ]

Add to shopping cart $8.23 $6.70
10+ in stock. Explain stock levels

WASHER Note: must be ordered in multiples of 2   12 31211K03
12 31211K03

About Mercury Marine

OEM Part

12-31211K03 - Washer - Priced Individually [ More info ]

Add to shopping cart $10.49
2 in stock. Explain stock levels

#82 14-816629 TAB WASHER, PROPELLER NUT (1 required per assembly)
14816629Q 14-816629
14-816629

About Mercury Marine

OEM Part

14-816629 - Tab Washer [ More info ]

Add to shopping cart $1.25
10+ in stock. Explain stock levels

TAB WASHER Note: must be ordered in multiples of 2 14-816629Q
14-816629Q

About Mercury Marine

OEM Part

14-816629Q - Tab Washer - Priced Individually [ More info ]

Add to shopping cart $4.17
10+ in stock. Explain stock levels

TABWASHER -  PACK OF 10
18-3200

About Sierra Marine

OEM Match

18-3200-9 - Washer, 14-816629, 10PK [ More info ]

Add to shopping cart $15.40 $12.48
10+ in stock. Explain stock levels

TAB WASHER Note: must be ordered in multiples of 2   14816629K
14816629K

About Mercury Marine

OEM Part

14-816629K - Tab Washer - Priced Individually [ More info ]

Add to shopping cart $4.17
1 in stock. Explain stock levels

#83 11-52707Q 1 PROP NUT KIT, (.750-16), PROPELLER (1 required per assembly)
PROP NUT KITNote: must be ordered in multiples of 2 11-52707Q 1
11-52707Q 1

About Mercury Marine

OEM Part

11-52707Q 1 - Prop Nut Kit - Priced Individually [ More info ]

Add to shopping cart $11.60
10 in stock. Explain stock levels

Prop Nut & Tabwasher Kit
18-3701

About Sierra Marine

OEM Match

18-3701 - Nut Kit, 11-52707A1 [ More info ]

Add to shopping cart $12.88 $9.57
10+ in stock. Explain stock levels

Prop Nut
18-3700

About Sierra Marine

OEM Match

18-3700 - Prop Nut Only, 11-52707 [ More info ]

Add to shopping cart $12.49 $9.80
10+ in stock. Explain stock levels

PROP NUT KITNote: must be ordered in multiples of 2   11 52707T 1
11 52707T 1

About Mercury Marine

OEM Part

11-52707T 1 - Prop Nut Kit - Priced Individually [ More info ]

Add to shopping cart $11.60
1 in stock. Explain stock levels

#84 31640Q 4 TRIM TAB, GEAR HOUSING (2-3/8 inch) (1 required per assembly)
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 $14.82
8 in stock. Explain stock levels

Anode(Magnesium)
18-6241

About Sierra Marine

OEM Match

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

Add to shopping cart $13.91 $13.77
10+ in stock. Explain stock levels

Anode  Aluminum
18-6011A

About Sierra Marine

OEM Match

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

Add to shopping cart $13.12 $10.61
1 in stock. Explain stock levels

Trim Tab
18-6011

About Sierra Marine

OEM Match

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

Add to shopping cart $13.49 $10.15
10+ in stock. Explain stock levels

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 $14.82
3 in stock. Explain stock levels

#84 34127T 2 TRIM TAB ASSEMBLY, GEAR HOUSING (4 inch) (OPT required per assembly) THIS TRIM TAB CANNOT BE USED WITH "BLACK MAX" PROPELLERS
TRIM TAB ASSEMBLY 34127T 2
34127T 2

About Mercury Marine

OEM Part

34127T 2 - Trim Tab [ More info ]

Add to shopping cart $20.17 $13.55
10+ in stock. Explain stock levels

Trim Tab
18-6012

About Sierra Marine

OEM Match

18-6012 - Trim Tab, Zinc 34127A1 [ More info ]

Add to shopping cart $18.99 $18.15
2 in stock. Explain stock levels

#85 10-32470 SCREW, (.437-14 x 1.75), TRIM TAB TO GEAR HOUSING (1 required per assembly)
SCREW Note: must be ordered in multiples of 2 10-32470
10-32470

About Mercury Marine

OEM Part

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

Add to shopping cart $3.20
4 in stock. Explain stock levels

Anode Mounting Bolt
18-6245

About Sierra Marine

OEM Match

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

Add to shopping cart $3.49 $2.93
10+ in stock. Explain stock levels

#86 10-30206 SCREW, (.375-16 x 1.00) Stainless Steel, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 required per assembly)
SCREW Note: must be ordered in multiples of 2 10-30206
10-30206

About Mercury Marine

OEM Part

10-30206 - Screw - Priced Individually [ More info ]

Add to shopping cart $3.20
10+ in stock. Explain stock levels

Screw  L/U Mounting. D1772
18-2361

About Sierra Marine

OEM Match

18-2361-9 - Screw, 10-30206, 2PK [ More info ]

Add to shopping cart $5.98
Available to order: Usually ships within 8 days. Explain stock levels

#87 11-826710 15 NUT, (.437-20) Stainless Steel, DRIVE SHAFT HOUSING STUD (2 required per assembly)
1134933 11-826710 15
11-826710 15

About Mercury Marine

OEM Part

11-826710 15 - Nut , Priced Individually [ More info ]

Add to shopping cart $2.55
10+ in stock. Explain stock levels

NUT Note: must be ordered in multiples of 10 11-34933
11-34933

About Mercury Marine

OEM Part

11-34933 - Nut - Priced Individually [ More info ]

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

S.S. Steel Locknut
18-3721

About Sierra Marine

OEM Match

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

Add to shopping cart $15.10 $10.27
4 in stock. Explain stock levels

#88 13-42351 1 LOCKWASHER, Toothed, PROPELLER SHAFT (1 required per assembly)
WASHER Note: must be ordered in multiples of 2 13-42351  1
13-42351  1

About Mercury Marine

OEM Part

13-42351 1 - Washer - Priced Individually [ More info ]

Add to shopping cart $2.10
10+ in stock. Explain stock levels

#- 43-96084A 2 GEAR REPLACEMENT KIT (1 required per assembly)
GEAR SET INCLUDES:A4 KIT 43-96084A 2
43-96084A 2

About Mercury Marine

OEM Part

43-96084A 2 - Gear Set [ More info ]

Add to shopping cart $125.00
10+ in stock. Explain stock levels

GEAR SET 43-96084A08
 

About Mercury Marine

OEM Part

43-96084A08 - Gear Set [ More info ]

Add to shopping cart $1,279.65 $277.41
Available to order: Usually ships within 8 days. Explain stock levels

#- 26-33144A 2 SEAL KIT (1 required per assembly)
SEAL KIT 26-33144A 2
26-33144A 2

About Mercury Marine

OEM Part

26-33144A 2 - Seal Kit [ More info ]

Add to shopping cart $75.58 $38.12
10+ in stock. Explain stock levels

Lower Gear Housing Seal Kit
18-2652

About Sierra Marine

OEM Match

18-2652 - Seal Kit, 26-33144A2 [ More info ]

Add to shopping cart $63.99 $38.37
10+ in stock. Explain stock levels

#- 43-96084A 4 GEAR SET (1 required per assembly)
GEAR SET CAN SUB 43-96084A2 AT THIS 43-96084A 4
43-96084A 4

About Mercury Marine

OEM Part

43-96084A 4 - Gear Set [ More info ]

Add to shopping cart $743.36 $148.50
10 in stock. Explain stock levels

Lower Unit Gear Set
18-2200

About Sierra Marine

OEM Match

18-2200 - Gear Set 43-96084A4 [ More info ]

Add to shopping cart $663.71 $658.08
1 in stock. Explain stock levels

#- 31-803068T 1 BEARING AND SEAL KIT (1 required per assembly)
REPAIR KT-BEARING 31-803068T 1
31-803068T 1

About Mercury Marine

OEM Part

31-803068T 1 - Bearing Repair Kit [ More info ]

Add to shopping cart $315.58
Available to order: Usually ships within 8 days. Explain stock levels

#- 43-803079T 1 REPAIR KIT, Lower Gear (1 required per assembly)
REPAIR KIT-GEARS 43-803079T 1
43-803079T 1

About Mercury Marine

OEM Part

43-803079T 1 - Gears Repair Kit [ More info ]

Add to shopping cart $974.43
Available to order: Usually ships within 8 days. Explain stock levels

Gear Repair Kit
18-2404

About Sierra Marine

OEM Match

18-2404 - Gear Kit, 43-803079T1 [ More info ]

Add to shopping cart $1,045.98
1 in stock. Explain stock levels

GEAR SET   43 96084A 7
43 96084A 7

About Mercury Marine

OEM Part

43-96084A 7 - Gear Set [ More info ]

Add to shopping cart $490.07 $96.80
10+ in stock. Explain stock levels