Marine Partsfinders Canada
Marine Engine Parts and Boating Accessories Store
Call us at 888-532-3230 or 604-532-6900 or Fax us at 604-532-6993
 Hours: Mon. - Fri. 8.30am to 4.30pm PST
Online ordering available 24/7. We ship only within Canada 
USA and International Customers Visit Marineparts.com
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Engine Parts Catalog | Hardware & Accessories Catalog
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MERCRUISER  GEARCASES

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MERCRUISER GEARCASES

DRIVE ASSEMBLIES
MERCRUISER COMPLETE DRIVE ASSEMBLIES
PART # HORSEPOWER DESCRIPTION YEAR RATIO & TEETH #
SW-101A 120 thru 140 4 cyl. One drive 1971 thru 79 1.98 / 20-24
SW-101B 120 thru 140 4 cyl. One drive 1980 thru 84 1.98 / 20-24
SW-102A 170 thru 190 4 cyl. One drive 1971 thru 79 1.84 / 17-19
SW-102B 170 thru 190 4 cyl. One drive 1980 thru 84 1.84 / 17-19
SW-103A 165 6 cylinder 1971 thru 79 1.65 / 24-24
SW-103B 165 6 cylinder 1980 thru 84 1.65 / 24-24
SW-104A 188 thru 260 V-8 1971 thru 79 1.5 / 20-22
SW-104B 188 thru 260 V-8 1980 thru 84 1.5 / 20-22
SW-105A 120 & 140 Alpha 4 cylinder 1985 thru 89 1.98 / 20-24
SW-105B 120 & 140 Alpha 4 cyl (New) **1985 thru 89 1.98 / 20-24
SW-106A 170 thru 190 Alpha 4 cylinder 1985 thru 89 1.84 / 17-19
SW-106B 170 thru 190 Alpha 4 cyl (New) **1985 thru 89 1.84 / 17-19
SW-107A 198 Alpha V-8 1985 thru 89 1.65 / 24-24
SW-107B 198 Alpha V-8 (New) **1985 thru 89 1.65 / 24-24
SW-108A 198 thru 260 Alpha V-8 1985 thru 89 1.5 / 20-22
SW-108B 198 thru 260 Alpha V-8 (New) **1985 thru 89 1.5 / 20-22
SW-109A 120 & 140 Gen 2 4 cylinder 1990 thru pr 1.98 / 20-24
SW-109B 175 & 4.3 Gen 2 V-6 1990 thru pr 1.84 / 17-19
SW-109C 198 Alpha V-8 1990 thru pr 1.65 / 24-24
SW-109D 198 thru 260 Gen 2 V-8 1990 thru pr 1.5 / 20-22
SW-BRAVO All engines Special order 1986 thru pr See uppers & lowers
LOWER GEARCASE DRIVES
MERCRUISER LOWER DRIVE ASSEMBLIES
PART # HORSEPOWER DESCRIPTION YEAR DETAILS & NOTES
SW-111A 120 thru 228 One drive 1971 thru 79 Note: 260hp use 113A
SW-112A 120 thru 228 One drive 1980 thru 84 Note: 260hp use 113A
SW-113A 120 thru 260 Alpha drive 1985 thru 89 Standard rotation
SW-113B  120 thru 260 **New Alpha  1985 thru 89 Standard rotation

LOWER GEARCASE DRIVES

MERCRUISER LOWER DRIVE ASSEMBLIES
PART # HORSEPOWER DESCRIPTION YEAR DETAILS & NOTES
SW-113CR 120 thru 260 Alpha drive 1985 thru 89 Counter rotation
SW-114A 120 thru 260 Generation 2 1990 thru pr Standard rotation
SW-114CR 120 thru 260 Generation 2 1990 thru pr Counter rotation
SW-115A All engines Bravo 1 1986 thru 89 Short housing
SW-115B All engines Bravo 1 1990 Long housing
SW-115C All engines Bravo 1 1991 thru pr Long with oil hole
SW-116A All engines Bravo 2 1990 Large drive
SW-117A All engines Bravo 3 1991 thru pr Daul propeller

UPPER GEARCASE DRIVES

MERCRUISER UPPER DRIVE ASSEMBLIES
PART # HORSEPOWER DESCRIPTION YEAR DETAILS & TEETH #
SW-120A All engines Bravo upper 1986 No oil reservoir / 27-32
SW-120B All engines Bravo upper 1987 thru 90 Oil reservoir / 27-29
SW-120C All engines Bravo upper 1991 thru pr Oil transfer hole / 23-30
SW-120D All engines Bravo upper 1986 No oil reservoir / 27-32
SW-120E All engines Bravo upper 1987 thru 90 Oil reservoir / 27-29
SW-120F All engines Bravo upper 1991 thru pr Oil transfer hole / 23-30
SW-120G All engines Bravo upper 1986 No oil reservoir / 27-32
SW-120H All engines Bravo upper 1987 thru 90 Oil reservoir / 27-29
SW-120I All engines Bravo upper 1991 thru pr Oil transfer hole / 23-30
SW-121A 120 & 140 4 cyl. One drive 1971 thru 79 1.98 / 20-24
SW-121B 120 & 140 4 cyl. Pre Alpha 1980 thru 84 1.98 / 20-24
SW-122A 120 & 140 4 cyl. One drive 1971 thru 79 1.84 / 17-19
SW-122B 170 thru 190 4 cyl. Pre Alpha 1980 thru 84 1.84 / 17-19
SW-123A 160 & 165 6 cyl. One drive 1971 thru 79 1.65 / 24-24
SW-123B 160 & 165 6 cyl. Pre Alpha 1980 thru 84 1.65 / 24-24
SW-124A 188 thru 260 V-8 One drive 1971 thru 79 1.5 / 20-22
SW-124B 188 thru 260 V-8 Pre Alpha 1980 thru 84 1.5 / 20-22
UPPER GEARCASE DRIVES
MERCRUISER UPPER DRIVE ASSEMBLIES
PART # HORSEPOWER DESCRIPTION YEAR DETAILS & TEETH #
SW-125A 120 & 140 Alpha 4 cyl 1985 thru 89 1.98 / 20-24
SW-125B 120 & 140 Alpha 4 cyl (New) **1985 thru 89 1.98 / 20-24
SW-126A 170 / 190 Alpha 4 cyl & V-6 1985 thru 89 1.84 / 17-19
SW-126B 170 / 190 Alpha 4 cyl & V-6 (New) **1985 thru 89 1.84 / 17-19
SW-127A 198 Alpha V-8 1985 thru 89 1.65 / 24-24
SW-127B 198 Alpha V-8 (New) **1985 thru 89 1.65 / 24-24
SW-128A 228 / 260 Alpha V-8 1985 thru 89 1.5 / 20-22
SW-128B 228 / 260 Alpha V-8 (New) **1985 thru 89 1.5 / 20-22
SW-129A 120 & 140 Gen 2 4 cyl 1990 thru pr 1.98 / 20-24
SW-129B 175 / 4.3 Gen 2 V-6 1990 thru pr 1.84 / 17-19
SW-129C 198 Gen 2 V-8 1990 thru pr 1.65 / 24-24
SW-129D 228 / 260 Gen 2 V-8 1990 thru pr 1.5 / 20-22

 

 

  POLICY AND PROCEDURES
Call us at 888-532-3230 or 604-532-6900 or Fax us at 604-532-6993
Hours: Mon. - Fri. 8.30am to 4.30pm PST
We ship only within Canada 
USA and International Customers Visit Marineparts.com
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