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Parts for MerCruiser III 1968-1972 Gear Housing Assembly, Complete

Ref. No. Part No. Description Manufacturer List Price Your Price Order
# 1636-3153A 6 GEAR HOUSING ASSEMBLY, COMPLETE (LEFT HAND ROTATION) (1 required per assembly) SERIAL 00000000-02815891
GEAR HOUSING ASSY O - Replaced by 1636-4354A 5  
1636-3153A 6This part has been superseded. GEAR HOUSING ASSY O - Replaced by 1636-4354A 5
(more info)
    UnavailableUnavailable Parts
GEAR HSG ASSY-LH  O NLA  
1636-4354A 5 GEAR HSG ASSY-LH O NLA
(more info)
    UnavailableUnavailable Parts
# 1636-3153A 5 GEAR HOUSING ASSEMBLY, COMPLETE (RIGHT HAND ROTATION) (1 required per assembly) SERIAL 00000000-02815891
GEAR HOUSING ASSY O - Replaced by 1636-4354A 4  
1636-3153A 5This part has been superseded. GEAR HOUSING ASSY O - Replaced by 1636-4354A 4
(more info)
    UnavailableUnavailable Parts
GEAR HSG ASSY-RH  O NLA  
1636-4354A 4 GEAR HSG ASSY-RH O NLA
(more info)
    UnavailableUnavailable Parts
# 1636-4354A 5 GEAR HOUSING ASSEMBLY, COMPLETE (LEFT HAND ROTATION) (1 required per assembly) SERIAL 02815892-09999999
# 1636-4354A 4 GEAR HOUSING ASSEMBLY, COMPLETE (RIGHT HAND ROTATION) (1 required per assembly) SERIAL 02815892-09999999
#1 1636-3153A 1 GEAR HOUSING ASSEMBLY (1 required per assembly) SERIAL 00000000-02815891
GEAR HOUSING ASSY O - Replaced by 1636-4354A 3  
1636-3153A 1This part has been superseded. GEAR HOUSING ASSY O - Replaced by 1636-4354A 3
(more info)
    UnavailableUnavailable Parts
GEAR HOUSING ASSY O NLA  
1636-4354A 3 GEAR HOUSING ASSY O NLA
(more info)
    UnavailableUnavailable Parts
#1 1636-4354A 3 GEAR HOUSING ASSEMBLY (1 required per assembly) SERIAL 02815892-09999999
#2 16-57982 STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 7/8") (1 required per assembly)
STUD              O - Replaced by 16-8M0041668  
16-57982This part has been superseded. STUD O - Replaced by 16-8M0041668
(more info)
    UnavailableUnavailable Parts
STUD (.437-14/.43 16-8M0041668  
16-8M0041668OEM Part 16-8M0041668 - Stud (more info) About Mercury Marine $10.80 $10.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 16-57986 STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (2 9/16") (1 required per assembly)
STUD              O - Replaced by 16-57985  
16-57986This part has been superseded. STUD O - Replaced by 16-57985
(more info)
    UnavailableUnavailable Parts
STUD 16-57985  
16-57985OEM Part 16-57985 - Stud (more info) About Mercury Marine $24.41 $24.41 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 31-35246 ROLLER BEARING, DRIVE SHAFT (1 required per assembly)
BEARING,NLA 31-35246 31-35246
31-35246OEM Part 31-35246 - Bearing, NLA (more info) About Mercury Marine $90.00 $90.00 Add to shopping cart
10+ in stock. Explain stock levels
Pinion Bearing 18-1120
18-1120OEM Match 18-1120 - Bearing - Special Order - No Returns (more info) About Sierra Marine $120.54 Add to shopping cart
In stock - special order item. Explain stock levels
#5 16-57981 STUD, BEARING RETAINER TO GEAR HOUSING (3") (4 required per assembly)
STUD              O NLA  
16-57981 STUD O NLA
(more info)
    UnavailableUnavailable Parts
#6 34127A 1 TRIM TAB ASSEMBLY, GEAR HOUSING (1 required per assembly)
34127T1 34127A 1 34127A 1
34127A 1OEM Part 34127A 1 - Trim Tab (more info) About Mercury Marine $8.00 $8.00 Add to shopping cart
1 in stock. Explain stock levels
34127T2 34127T 1 34127T 1
34127T 1OEM Part 34127T 1 - Trim Tab (more info) About Mercury Marine $14.90 $14.90 Add to shopping cart
2 in stock. Explain stock levels
TRIM TAB ASSEMBLY 34127T 2 34127T 2
34127T 2OEM Part 34127T 2 - Trim Tab (more info) About Mercury Marine $19.75 $19.75 Add to shopping cart
1 in stock. Explain stock levels
Trim Tab 18-6012
18-6012OEM Match 18-6012 - Trim Tab, Zinc 34127A1 (more info) About Sierra Marine $18.99 $17.01 Add to shopping cart
3 in stock. Explain stock levels
#7 10-49354 SCREW, TRIM TAB TO GEAR HOUSING (2 1/2") (1 required per assembly)
SCREW             O - Replaced by 10-41350  
10-49354This part has been superseded. SCREW O - Replaced by 10-41350
(more info)
    UnavailableUnavailable Parts
SCREW (.437-14 x 10-41350 10-41350
10-41350OEM Part 10-41350 - Screw (more info) About Mercury Marine $19.42 $15.74 Add to shopping cart
10+ in stock. Explain stock levels
#8 15-47295A 1 SHIM ASSEMBLY, ROLLER BEARING TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
SHIM SET,NLA 15-47295A 1  
15-47295A 1OEM Part 15-47295A 1 - Shim Set, NLA (more info) About Mercury Marine $50.00 $50.00 Add to shopping cart
5 in stock. Explain stock levels
#9 31-47484A 1 TAPERED ROLLER BEARING ASSEMBLY, PROPELLER GEAR (1 required per assembly)
BEARING           O NLA  
31-47484A 1 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#10 43-53572A 2 GEAR ASSEMBLY (DRIVE AND PINION) (1 required per assembly)
GEAR SET          O NLA  
43-53572A 2 GEAR SET O NLA
(more info)
    UnavailableUnavailable Parts
#11 23-48016 SPACER, SPLIT - PROPELLER SHAFT (1 required per assembly)
SPACER            O NLA  
23-48016 SPACER O NLA
(more info)
    UnavailableUnavailable Parts
#12 23-48015 SPACER, PROPELLER SHAFT (1 required per assembly)
SPACER,NLA 23-48015  
23-48015OEM Part 23-48015 - Spacer, NLA (more info) About Mercury Marine $24.00 $24.00 Add to shopping cart
1 in stock. Explain stock levels
#13 53515A 1 ADAPTOR ASSEMBLY, TAPERED ROLLER BEARING (1 required per assembly) SERIAL 00000000-02529424
53516 53515A 1  
53515A 1OEM Part 53515A 1 - Adaptor Assembly (more info) About Mercury Marine $42.65 $42.65 Add to shopping cart
5 in stock. Explain stock levels
ADAPTOR,NLA 53516  
53516OEM Part 53516 - Adaptor, NLA (more info) About Mercury Marine $290.00 $290.00 Add to shopping cart
1 in stock. Explain stock levels
#13 53516 ADAPTOR, TAPERED ROLLER BEARING (1 required per assembly) SERIAL 02529425-09999999
#14 23-48011 SLEEVE, TAPERED ROLLER BEARING ADAPTOR (1 required per assembly)
SLEEVE            O NLA  
23-48011 SLEEVE O NLA
(more info)
    UnavailableUnavailable Parts
#15 17-53308 PIN, DOWEL - ADAPTOR SLEEVE (1 required per assembly)
PIN-DOWEL 17-53308  
17-53308OEM Part 17-53308 - Pin -Dowel (more info) About Mercury Marine $1.00 $1.00 Add to shopping cart
10+ in stock. Explain stock levels
#17 15-47297A 1 SHIM ASSEMBLY, ROLLER BEARING TO THRUST RING (.002-3-5-10) (AR required per assembly)
SHIM SET,NLA 15-47297A 1  
15-47297A 1OEM Part 15-47297A 1 - Shim Set, NLA (more info) About Mercury Marine $25.00 $25.00 Add to shopping cart
3 in stock. Explain stock levels
#18 44-47893 PROPELLER SHAFT (1 1/4-7 THREAD) (1 required per assembly)
PROPELLER SHAFT   O - Replaced by 44-53185A 1  
44-47893This part has been superseded. PROPELLER SHAFT O - Replaced by 44-53185A 1
(more info)
    UnavailableUnavailable Parts
PROPSHAFT         O NLA  
44-53185A 1 PROPSHAFT O NLA
(more info)
    UnavailableUnavailable Parts
#18 44-53185A 1 PROPELLER SHAFT ASSEMBLY (1 14-12 THREAD) (1 required per assembly)
#19 47307 RING, THRUST - BEARING CARRIER (1 required per assembly)
RING-THRUST       O NLA  
47307 RING-THRUST O NLA
(more info)
    UnavailableUnavailable Parts
#20 25-47298 "O" RING, BEARING CARRIER (1 required per assembly)
O RING,NLA 25-47298 25-47298
25-47298OEM Part 25-47298 - O-Ring (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
1 in stock. Explain stock levels
#21 47318A 1 BEARING CARRIER ASSEMBLY (1 required per assembly) SERIAL 00000000-02529424
CARRIER ASSY      O - Replaced by -52623A 2  
47318A 1This part has been superseded. CARRIER ASSY O - Replaced by -52623A 2
(more info)
    UnavailableUnavailable Parts
CARRIER ASSY-BRG  O NLA  
52623A 2 CARRIER ASSY-BRG O NLA
(more info)
    UnavailableUnavailable Parts
#21 52623A 2 BEARING CARRIER ASSEMBLY (1 required per assembly) SERIAL 02529425-09999999
#22 31-47946 BEARING, ROLLER - BEARING CARRIER (1 required per assembly)
BEARING           O NLA  
31-47946 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#23 26-48013 OIL SEAL, BEARING CARRIER (2 required per assembly)
OIL SEAL          O - Replaced by 26-19473  
26-48013This part has been superseded. OIL SEAL O - Replaced by 26-19473
(more info)
    UnavailableUnavailable Parts
SEAL 26-19473 26-19473
26-19473OEM Part 26-19473 - Seal (more info) About Mercury Marine $39.09 $39.09 Add to shopping cart
Available to order:
Usually ships
within 8 days
#24 28-30281 KEY, LOCATING - BEARING CARRIER (1 required per assembly)
KEY Note: must be ordered in multiples of 5 28-30281 28-30281
28-30281OEM Part 28-30281 - Key - Priced Individually (more info) About Mercury Marine $0.90 $0.90 Add to shopping cart
9 in stock. Explain stock levels
#25 12-47539 WASHER, THRUST - GEAR HOUSING COVER (1 required per assembly) SERIAL 00000000-02529424
WASHER            O - Replaced by 14-52553  
12-47539This part has been superseded. WASHER O - Replaced by 14-52553
(more info)
    UnavailableUnavailable Parts
WASHER-TAB        O NLA 14-52553
14-52553 WASHER-TAB O NLA
(more info)
    UnavailableUnavailable Parts
#26 47308 COVER, GEAR HOUSING (1 required per assembly) SERIAL 00000000-02529424
RETAINER          O - Replaced by -52622  
47308This part has been superseded. RETAINER O - Replaced by -52622
(more info)
    UnavailableUnavailable Parts
COVER 52622 52622
52622OEM Part 52622 - Cover (more info) About Mercury Marine $103.36 Add to shopping cart
1 in stock. Explain stock levels
#25 14-52553 TAB WASHER, GEAR HOUSING COVER (1 required per assembly) SERIAL 02529425-09999999
#26 52622 COVER, GEAR HOUSING (1 required per assembly) SERIAL 02529425-09999999
#27 10-28634 SCREW, VENT - GEAR HOUSING (1 required per assembly)
SCREW @5          O - Replaced by 10-79953 10-28634
10-28634This part has been superseded. SCREW @5 O - Replaced by 10-79953
(more info)
    UnavailableUnavailable Parts
SCREW @5          O - Replaced by 10-79953A 2 10-79953
10-79953This part has been superseded. SCREW @5 O - Replaced by 10-79953A 2
(more info)
    UnavailableUnavailable Parts
SCREW KIT-DRAIN   O - Replaced by 10-79953Q 2 10-79953A 2
10-79953A 2This part has been superseded. SCREW KIT-DRAIN O - Replaced by 10-79953Q 2
(more info)
    UnavailableUnavailable Parts
SCREW KIT @2      O - Replaced by 10-79953Q04 10-79953Q 2
10-79953Q 2This part has been superseded. SCREW KIT @2 O - Replaced by 10-79953Q04
(more info)
    UnavailableUnavailable Parts
SCREW KIT Drain 10-79953Q04 10-79953Q04
10-79953Q04OEM Part 10-79953Q04 - Screw Kit - Priced Individually (more info) About Mercury Marine $5.70 $5.70 Add to shopping cart
10+ in stock. Explain stock levels
DRAIN PLUG 18-2244
18-2244OEM Match 18-2244 - Plug Kit, 10-79953A2 (more info) About Sierra Marine $2.99 $2.07 Add to shopping cart
10+ in stock. Explain stock levels
SCREW-DRAIN Note: must be ordered in multiples of 2   10 79953K04 10-79953K04
10-79953K04OEM Part 10-79953K04 - Drain Screw - Priced Individually (more info) About Mercury Marine $5.70 $5.70 Add to shopping cart
1 in stock. Explain stock levels
#28 12-20260 WASHER, SEAL - VENT SCREW (1 required per assembly)
WASHER @15        O - Replaced by 12-19183 12-20260
12-20260This part has been superseded. WASHER @15 O - Replaced by 12-19183
(more info)
    UnavailableUnavailable Parts
12191832 12-19183 12-19183
12-19183OEM Part 12-19183 - Washer-BLK - Priced Individually (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
10+ in stock. Explain stock levels
WASHER-ORAN @15   O - Replaced by 12-19183  3 12-19183  2
12-19183 2This part has been superseded. WASHER-ORAN @15 O - Replaced by 12-19183 3
(more info)
    UnavailableUnavailable Parts
SEAL 12-19183  3 12-19183 3
12-19183 3OEM Part 12-19183 3 - Seal -Blue - Priced Individually (more info) About Mercury Marine $1.00 $1.00 Add to shopping cart
10+ in stock. Explain stock levels
DRAIN GASKET 18-2945-9
18-2945-9OEM Match 18-2945-9 - Gasket 12-19183 2-Pack (more info)
Replaces OEM #0307552
About Sierra Marine $2.78 $1.52 Add to shopping cart
10+ in stock. Explain stock levels
SEAL (4) Note: must be ordered in multiples of 2   12 19183Q02 12-19183Q02
12-19183Q02OEM Part 12-19183Q02 - Seals, Pack of 4 (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
SEAL (4) Note: must be ordered in multiples of 2   12 19183K02 12-19183K02
12-19183K02OEM Part 12-19183K02 - Seal, Pack of 4 (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#29 12-32073 WASHER, PINION GEAR TO DRIVE SHAFT (1 required per assembly)
WASHER            O NLA  
12-32073 WASHER O NLA
(more info)
    UnavailableUnavailable Parts
#30 11-56041 NUT, PINION GEAR TO DRIVE SHAFT (1 required per assembly)
NUT @2            O - Replaced by 11-30499  
11-56041This part has been superseded. NUT @2 O - Replaced by 11-30499
(more info)
    UnavailableUnavailable Parts
11858869 11-30499  
11-30499OEM Part 11-30499 - Nut - Priced Individually (more info) About Mercury Marine $1.80 $1.80 Add to shopping cart
10 in stock. Explain stock levels
NUT (.875-14) 11-858869  
11-858869OEM Part 11-858869 - Nut - Priced Individually (more info) About Mercury Marine $3.30 $3.30 Add to shopping cart
10 in stock. Explain stock levels
#31 45-47323 DRIVE SHAFT (1 required per assembly)
DRIVESHAFT,NLA 45-47323  
45-47323OEM Part 45-47323 - Drive Shaft, NLA (more info) About Mercury Marine $466.00 $466.00 Add to shopping cart
1 in stock. Explain stock levels
#32 15-39808A 1 SHIM ASSEMBLY, ROLLER BEARING TO GEAR HOUSING (.002-3-5-10) (AR required per assembly)
SHIM SET,NLA 15-39808A 1 15-39808A 1
15-39808A 1OEM Part 15-39808A 1 - Shim Set, NLA (more info) About Mercury Marine $9.00 $9.00 Add to shopping cart
10+ in stock. Explain stock levels
#33 31-47669A 2 TAPERED ROLLER BEARING ASSEMBLY, COMPLETE (DRIVE SHAFT) (1 required per assembly)
BEARING ,NLA 31-47669A 2  
31-47669A 2OEM Part 31-47669A 2 - Bearing, NLA (more info) About Mercury Marine $90.00 $90.00 Add to shopping cart
3 in stock. Explain stock levels
#34 23-47603 SPACER, TAPERED ROLLER BEARING CUPS (1 required per assembly)
SPACER            O NLA  
23-47603 SPACER O NLA
(more info)
    UnavailableUnavailable Parts
#36 12-56042 WASHER, TAPERED ROLLER BEARING TO DRIVE SHAFT (1 required per assembly)
WASHER 12-56042  
12-56042OEM Part 12-56042 - Washer (more info) About Mercury Marine $13.38 $13.38 Add to shopping cart
1 in stock. Explain stock levels
#37 11-34826 NUT, TAPERED ROLLER BEARING TO DRIVE SHAFT (1 required per assembly)
NUT,NLA 11-34826  
11-34826OEM Part 11-34826 - Nut, NLA (more info) About Mercury Marine $16.50 $16.50 Add to shopping cart
2 in stock. Explain stock levels
#38 25-20081 "O" RING, BEARING RETAINER (LARGE) (1 required per assembly)
O-RING 25-20081 25-20081
25-20081OEM Part 25-20081 - O-Ring - Priced Individually (more info) About Mercury Marine $2.30 $2.30 Add to shopping cart
10+ in stock. Explain stock levels
O-Ring 18-7151-9
18-7151-9OEM Match 18-7151-9 - (PK5) O-Ring Mercury 25-20081 (more info) About Sierra Marine $12.45 $7.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#39 47315 RETAINER, TAPERED ROLLER BEARING (1 required per assembly)
RETAINER          O NLA  
47315 RETAINER O NLA
(more info)
    UnavailableUnavailable Parts
#40 25-45711 "O" RING, BEARING RETAINER (SMALL) (1 required per assembly)
O-RING (.612 x .1 25-45711 25-45711
25-45711OEM Part 25-45711 - O-Ring - Priced Individually (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
10+ in stock. Explain stock levels
O-Ring 18-7174-9
18-7174-9OEM Match 18-7174-9 - O-Ring (PK5) 326649, 25-45711 (more info)
Replaces OEM #0326649
About Sierra Marine $9.95 $4.52 Add to shopping cart
Available to order:
Usually ships
within 8 days
#41 11-34932 NUT, BEARING RETAINER TO GEAR HOUSING STUD (4 required per assembly)
1182671013 11-34932 11-34932
11-34932OEM Part 11-34932 - Nut - Priced Individually (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
NUT (.375-24) Sta 11-826710 13 11-826710 13
11-826710 13OEM Part 11-826710 13 - Nut - Priced Individually (more info) About Mercury Marine $3.20 $3.20 Add to shopping cart
1 in stock. Explain stock levels
S.S. Steel Locknut 18-3720-9
18-3720-9OEM Match 18-3720-9 - Lock Nut, 11-34932, 5PK (more info) About Sierra Marine $14.95 $9.98 Add to shopping cart
Available to order:
Usually ships
within 8 days
#42 27-47317 GASKET, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 required per assembly)
GASKET 27-47317 27-47317
27-47317OEM Part 27-47317 - Gasket (more info) About Mercury Marine $14.25 $14.25 Add to shopping cart
1 in stock. Explain stock levels
#43 11-47302 NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (6 required per assembly)
NUT (.562-18) Sta 11-47302  
11-47302OEM Part 11-47302 - Nut (more info) About Mercury Marine $6.71 $6.71 Add to shopping cart
Available to order:
Usually ships
within 8 days
#44 10-47557 SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 1/2") (1 required per assembly)
SCREW,NLA 10-47557  
10-47557OEM Part 10-47557 - Screw, NLA (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
10+ in stock. Explain stock levels
#45 48018A 1 THRUST HUB AND WASHER ASSEMBLY (1 required per assembly)
THRUST HUB ASSY 48018A 1 48018A 1
48018A 1OEM Part 48018A 1 - Thrust Hub Assembly (more info) About Mercury Marine $115.06 $115.06 Add to shopping cart
10+ in stock. Explain stock levels
#46 12-31642 WASHER, CUPPED - THRUST HUB (1 required per assembly)
THRUST WASHER ,NLA 12-31642  
12-31642OEM Part 12-31642 - Thrust Washer, NLA (more info) About Mercury Marine $5.50 $5.50 Add to shopping cart
2 in stock. Explain stock levels
#47 12-37763 WASHER, THRUST - BEARING CARRIER (1 required per assembly)
WASHER,NLA 12-37763  
12-37763OEM Part 12-37763 - Washer, NLA (more info) About Mercury Marine $6.00 $6.00 Add to shopping cart
10+ in stock. Explain stock levels
#48 12-48014 WASHER, SPLINED - PROPELLER SHAFT (1 required per assembly)
WASHER,NLA 12-48014  
12-48014OEM Part 12-48014 - Washer, NLA (more info) About Mercury Marine $85.00 $85.00 Add to shopping cart
10+ in stock. Explain stock levels
#49 14-48012 TAB WASHER, PROPELLER NUT (1 required per assembly)
WASHER-TAB,NLA 14-48012  
14-48012OEM Part 14-48012 - Tab Washer, NLA (more info) About Mercury Marine $6.00 $6.00 Add to shopping cart
10+ in stock. Explain stock levels
#50 11-52846 NUT, PROPELLER (1 1/4-7 THREAD) (1 required per assembly)
MERC PERF PROD    O NLA  
11-52846 MERC PERF PROD O NLA
(more info)
    UnavailableUnavailable Parts
#50 11-53186 NUT, PROPELLER (1 1/4-12 THREAD) (1 required per assembly) PART OF B-44-53185A1 PROPELLER SHAFT ASSEMBLY
1117844 11-53186  
11-53186OEM Part 11-53186 - Nut (more info) About Mercury Marine $18.15 $18.15 Add to shopping cart
7 in stock. Explain stock levels
NUT,NLA 11-17844  
11-17844OEM Part 11-17844 - Nut, NLA (more info) About Mercury Marine $25.00 $25.00 Add to shopping cart
9 in stock. Explain stock levels