Mercruiser Upper Unit Gears

8205

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Manufacture	Part Type	Search	Serial Number Range	Model	Cyl	Gear Ratio	Drive Gear Teeth	Driven Gear Teeth	Gear Set	OEM Gear Set	Reapair Kit	OEM Repair Kit	Notes
Mercruiser	Upper Gear Housing Gears	#1,R,MR,Alpha	2791957 & Up	120, 140	4L	Gear Ratio 1.98:1	20	24	18-2205	43-853642A-2	18-2363	43-403118T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	2.5L	4L	Gear Ratio 1.94:1	20	24	18-6352	43-853642A-2	18-6352K	43-803106T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	3.0L	4L	Gear Ratio 1.94:1	20	24	18-6352	43-853642A-2	18-6352K	43-803106T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	3.7L	4L	Gear Ratio 1.84:1	17	19	18-2204	43-75325A-3	18-2365	43-803120T-1	A
Mercruiser	Upper Gear Housing Gears	#1,R,MR,Alpha	K999999 & Below	470, 485	4L	Gear Ratio 1.84:1	17	19	18-2204	43-75325A-3	18-2365	43-803120T-1	A
Mercruiser	Upper Gear Housing Gears	#1,R,MR,Alpha	K999999 & Below	Inline 6 Cyl	6L	Gear Ratio 1.65:1	24	24	18-2203	43-458145A-5	18-2364	43-803119T-1	A
Mercruiser	Upper Gear Housing Gears	#1,R,MR,Alpha	K999999 & Below	V-6	V-6	Gear Ratio 1.84:1	17	19	18-2204	43-75325A-3	18-2365	43-803120T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	4.3L	V-6	Gear Ratio 1.62:1	24	24	18-6350	43-853640A-2	18-6350K	43-803104T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	5.0L /180Hp	V-8	Gear Ratio 1.62:1	24	24	18-6350	43-853640A-2	18-6350K	43-803104T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	5.0L /200Hp +	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	5.7L	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	350 MAG	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Alpha 1	1986 -1990	7.4L	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	K999999 & Below	3.0L	4L	Gear Ratio 1.98:1	20	24	18-2205	43-853642A-2	18-2363	43-403118T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	3.0L	4L	Gear Ratio 1.94:1	20	24	18-6352	43-853642A-2	18-6352K	43-803106T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	1991 - Present	120 & 140	4L	Gear Ratio 1.94:1	20	24	18-6352	43-853642A-2	18-6352K	43-803106T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	1991 - Present	4.3L & 175	V-6	Gear Ratio 1.98:1	20	24	18-2205	43-853642A-2	18-2363	43-403118T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	K999999 & Below	V-6	V-6	Gear Ratio 1.84:1	17	19	18-2204	43-75325A-3	18-2365	43-803120T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	1991 - Present	198	V-6	Gear Ratio 1.62:2	24	24	18-6350	43-853640A-2	18-6350K	43-803104T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	4.3L	V-6	Gear Ratio 1.81:1	19	17	18-6353	43-853643A-2	18-6353K	43803105T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	5.0L	V-6	Gear Ratio 1.62:2	24	24	18-6350	43-853640A-2	18-6350K	43-803104T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	5.0L 205 Hp	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	5.7L	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	1991 - Present	198 -260	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP	350 MAG	V-8	Gear Ratio 1.47:1	20	22	18-6351	43-853641A-2	18-6351K	43-803103T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP			Gear Ratio 2.40:1	20	24	18-6352	43-853642A-2	18-6352K	43-803106T-1	A
Mercruiser	Upper Gear Housing Gears	Gen II	OL1000040 & UP			Gear Ratio 2.00:1	24	24	18-6350	43-853640A-2	18-6350K	43-803104T-1	A

CLEARANCE

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Sierra 18-2201 Gear Set Replaces 43-18411A2

$597.99

$400.49

Sierra 18-2201 Mercruiser 1.5:1 Upper Unit Gear Set Sierra replacement engine parts are designed to meet OEM specifications. 18-2201 Upper Unit Gear Set is for most V8 Drives and Gen II (S/N K999999 & Below). Drive Gear: 22 Teeth Driven Gear: 20...
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Mercruiser 43-853640A-2 Upper Gear Set - 1.62/2.0

$571.49

$496.99

Mercruiser 43-853640A-2 Upper Gear Set - 1.62/2.0 Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) 24-24 Teeth 1.62 & 2.00 Ratio Special Order Item.
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Sierra 18-6352 Upper Gear Kit

$282.99

$197.99

Gen II & Vazer (1.94:1 & 2.40:1 Ratios) Upper Gear Set For Alpha Gen II and Vazer 1.94:1 and 2.40:1 Ratios (20 - 24 Teeth) Used with 18-2411 Drive Shaft Housing Assembly and 18-2419 Complete Upper Gear Case Replaces: Mercury 43-853642A 2 GLM 11244
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Mercury - Mercruiser 43-883479A-2 Gear Set-(30/23)

$1,953.99

$1,699.99

Mercruiser 43-883479A-2 Upper Unit Gear Set - (30/23) Genuine OEM Mercury-Mercruiser part. Replacement upper unit gear set for Mercruiser sterndrives. Fits: Bravo I & Perf. (1.65), II (2.20) & III (2.20 & 2.43) - s/n 0M100001 -...
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CLEARANCE

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Sierra 18-2205 Gear Set Replaces 43-55778A3

$515.99

$345.99

Sierra 18-2205 Mercruiser 1.98:1 Upper Unit Gear Set For 1.98:1 Ratio Drives. Drive Gear = 20 teeth; Driven Gear = 24 teeth. For 120/140 (S/N 2791957 & UP) and Gen II (S/N K999999 & Below) Interchangeable with: GLM 11240 Mercruiser...
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Mercruiser 43-18411A-2 Upper Gear Set - 1.50:1

$727.99

$633.49

Mercruiser 43-18411A-2 Upper Gear Set - 1.50:1 Genuine OEM Mercury-Mercruiser part. Fits: MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1971‑1997) 22-20 Teeth 1.50/1.47 Ratio Special Order Item.
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Mercruiser 43-18411A-4 Upper Gear Set

$1,094.99

$952.49

Mercruiser 43-18411A-4 Upper Gear Set Genuine OEM Mercury-Mercruiser part. For use w/ heavy duty 1.50 gears only. The HD 1.50 drive gear has a stepped bearing surface requiring the use of a special bearing kit having 2 different I.D...
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Mercruiser 43-45814A-5 Upper Gear Set - 1.65:1

$550.99

$479.49

Mercruiser 43-45814A-5 Upper Gear Set - 1.65:1 Genuine OEM Mercury-Mercruiser part. Fits: MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1970‑1997) 24-24 Teeth 1.65/1.62 Ratio Special Order Item.
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Mercruiser 43-55778A-3 Upper Gear Set - 1.98:1

$582.99

$506.99

Mercruiser 43-55778A-3 Upper Gear Set - 1.98:1 Genuine OEM Mercury-Mercruiser part. Fits: MC‑I, R, MR, Alpha One & Gen II (s/n 0K999999 and below) (1970‑1997) 20-24 Teeth 1.98/1.94 & 2.40 Ratio Special Order Item.
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Mercruiser 43-853641A-2 Upper Gear Set - 1.47

$607.99

$528.99

Mercruiser 43-853641A-2 Upper Gear Set - 1.47 Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) 22-20 Teeth 1.47 Ratio Special Order Item.
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Mercruiser 43-853642A-2 Upper Gear Set - 1.94/2.4

$777.49

$676.49

Mercruiser 43-853642A-2 Upper Gear Set - 1.94/2.4 Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) and Vazer drive 20-24 Teeth 1.94 & 2.40 Ratio Alpha One Gen II 2.77 Ratio...
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Mercruiser 43-853643A-2 Upper Gear Set - 1.81

$534.99

$465.49

Mercruiser 43-853643A-2 Upper Gear Set - 1.81 Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) & Vazer drive 17-19 Teeth 1.81 Ratio Alpha One Gen II 2.58 Ratio Vazer Special...
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Mercruiser 43-887906A-1 Upper Gear Set

$2,195.99

$1,910.49

Mercruiser 43-887906A-1 Bravo Upper Gear Set Genuine OEM Mercury-Mercruiser part. Fits: Bravo I X & XZ (1.36), II X (1.50 & 1.81) & III X (1.36 & 1.81) (2000 & newer) 27/29 Teeth Special Order Item.
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Sierra 18-2204 Gear Set Replaces 43-75325A3

$751.99

$526.49

Sierra 18-2204 Mercruiser 1.84:1 Upper Unit Gear Set For 1.84:1 Ratio Drives. Drive Gear = 17 teeth; Driven Gear = 19 teeth. For V6 and 470/485 (4 cyl. etc.) and Gen II (S/N K999999 & Below) Interchangeable with: GLM 11230 Mercruiser...
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