Parts for MerCruiser Alpha One (Gen. II) 1998 & Up Gear Housing (Driveshaft) (Standard Rotation)

Revise Search: All Models > Alpha One (Gen. II) 1998 & Up > 0L100040 & Up > Gear Housing (Driveshaft) (Standard Rotation)

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Each product listed is an OEM or aftermarket equivalent part. [ Example ]

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Engine section

Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

#	1623-815822A45	GEAR HOUSING ASSEMBLY, Standard Rotation (COMPLETE) (1 required per assembly) (2.00:1 AND 2.40:1 RATIO)
		1623-815822A45 - Gear Housing Assembly - Std [ More info ] $3,511.71 2 in stock.
		1623-815822A55 - GC ALPHA GENII [ More info ] Unavailable
		90-116-02H - SE116 HA Lower Unit Mercruiser Alpha One Gen II, Std Rotation, See Detail Page [ More info ] $895.00 $895.00
#	817275A 4	REBUILD KIT, Water Pump (AR required per assembly)
		817275A 4 - 817275A 4 - REBUILD KIT Water [ More info ] Unavailable Replaced by -817275Q 4
		817275Q 4 - 817275Q 4 - REBUILD KIT-W/P [ More info ] Unavailable Replaced by -817275Q05
		817275Q05 - Water Pump Rebuild Kit [ More info ] $161.67 In stock
		18-3147 - Water Pump Kit 817275T4 and 817275Q4 [ More info ] $149.55 $130.19 9 in stock.
		817275K05 - Water Pump Rebuild Kit [ More info ] $161.67 10+ in stock.
#	26-816575A 3	SEAL KIT, Gear Housing (AR required per assembly)
		26-816575A 3 - Seal Kit [ More info ] $90.42 10+ in stock.
		18-2646-1 - Seal Kit, 26-816575A3 [ More info ] $81.49 $41.03 10+ in stock.
#	1623-815822A43	GEAR HOUSING ASSEMBLY, Standard Rotation (COMPLETE) (1 required per assembly) (1.47, 1.62, 1.81, AND 1.94 Ratios)
		1623-815822A43 - 1623-815822A43 - GEAR HOUSING ASSE [ More info ] Unavailable Replaced by 1623-815822A53
		1623-815822A53 - GC ALPHA GENII [ More info ] Unavailable
		90-116-02 - SE116 Lower Unit Mercruiser Alpha One Gen II, Std Rotation, See Detail Page [ More info ] $895.00 $895.00
#	26-88397A 1	SEAL KIT, Driveshaft Housing (AR required per assembly)
		26-88397A 1 - Seal Kit [ More info ] $40.25 In stock
		18-2644 - Seal Kit, 26-88397A1 [ More info ] $33.99 $30.79 10+ in stock.
#1	1623-815822A36	GEAR HOUSING ASSEMBLY (1 required per assembly)
		1623-815822A36 - Gearcase Genii -Basic [ More info ] $1,407.14 Available to order: Usually ships within 10 days.
#2	821526	FILLER BLOCK (1 required per assembly)
		821526 - Filler Block [ More info ] $8.00 6 in stock.
		821526001 - Filler Block [ More info ] $15.00 Available to order: Usually ships within 10 days.
#3	17-37972 1	PIN (1 required per assembly)
		17-37972 1 - Pin [ More info ] $2.80 Available to order: Usually ships within 10 days.
#4	16-57984	STUD, (.437-14/.437-20 x 2.380) (1 required per assembly)
		16-57984 - Stud [ More info ] $18.40 $10.30 2 in stock.
#4	10-806327	SCREW, (.437-14 x 1.750) (1 required per assembly)
		10-806327 - Screw [ More info ] $5.40 5 in stock.
		90-116-03K - Gen II Installation Kit [ More info ] $45.00 $45.00
#5	22-67892A 1	FITTING KIT, Magnetic, Plug Fill/Drain (1 required per assembly)
		22-67892A 1 - 22-67892A 1 - FITTING KIT Magne [ More info ] Unavailable Replaced by 22-67892A05
		22-67892A05 - 22-67892A05 - PLUG KIT Drain (M [ More info ] Unavailable Replaced by 22-67892A06
		22-67892A06 - 22-67892A06 - PLUG KIT Drain - [ More info ] Unavailable Replaced by 22-8M0058389
		22-8M0058389 - Screw Kit - Priced Individually [ More info ] $8.70 10+ in stock.
		18-2375 - Plug, 22-67892A1 [ More info ] $5.99 $5.24 10+ in stock.
#6	12-19183	WASHER, Fiber (1 required per assembly)
		12-19183 - Washer-BLK - Priced Individually [ More info ] $0.99 10+ in stock.
		12-19183 2 - 12-19183 2 - WASHER [ More info ] Unavailable Replaced by 12-19183 3
		12-19183 3 - Seal -Blue - Priced Individually [ More info ] $1.20 10+ in stock.
		18-2945-9 - Gasket 12-19183 2-Pack [ More info ] $2.98 $1.80 10+ in stock.
		12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] $5.40 10+ in stock.
		12-19183K02 - Seal, Pack of 4 [ More info ] $5.40 10+ in stock.
#7	26-45577 1	SEAL (1 required per assembly)
		26-45577 1 - Seal - Priced Individually [ More info ] $3.40 10+ in stock.
		18-2944-9 - Gasket 26-45577 2-Pack [ More info ] $5.94 $4.50 10+ in stock.
#8	17-43044	PIN, Dowel - Without Hole (.375 x .625) (2 required per assembly)
		17-43044 - Pin -Dowel-solid [ More info ] $1.80 7 in stock.
#9	31-42647A 1	BEARING ASSEMBLY, Roller (1 required per assembly)
		31-42647A 1 - Bearing Assembly [ More info ] $52.58 5 in stock.
		18-1117 - Bearing, 387817, 31-42647A1 [ More info ] $46.49 $42.07 4 in stock.
#10	11-817618	NUT, (.437-20) (1 required per assembly)
		11-817618 - 11-817618 - NUT (.437-20) [ More info ] Unavailable Replaced by 11-859135
		11-859135 - Nut - Priced Individually [ More info ] $4.86 10+ in stock.
#11	45-853648	DRIVESHAFT (1 required per assembly) (1.47:1 AND 1.62:1 RATIO)
		45-853648 - DRIVESHAFT [ More info ] Unavailable
#11	45-853647	DRIVESHAFT (1 required per assembly) (1.81:1, 1.94:1, 2.00:1, AND 2.40:1 RATIO)
		45-853647 - 45-853647 - DRIVESHAFT [ More info ] Unavailable Replaced by 45-853648
#12	15-42637A 1	SHIM SET (AR required per assembly)
		15-42637A 1 - Shim Set [ More info ] $12.50 10+ in stock.
		18-2294 - Shim 15-42637A1 [ More info ] $33.99 $28.06 In stock
#13	31-33138A 1	BEARING ASSEMBLY, Tappered Roller (1 required per assembly)
		31-33138A 1 - Bearing Set [ More info ] $58.42 1 in stock.
		18-1193 - Tapered Bearing 31-33138A1 [ More info ] $57.99 $52.47 2 in stock.
#14	853651	RETAINER (1 required per assembly)
		853651 - Bearing Retainer [ More info ] $11.20 Available to order: Usually ships within 10 days.
#15	NSS	NOT SOLD SEPARATE, GEAR-Pinion (1 required per assembly) (PART OF 43-828072A3) (1.47, 1.62, 1.81, AND 1.94 RATIO)
		NSS - NOT SOLD SEPARATE [ More info ] Unavailable
#16	12-92721	WASHER (1 required per assembly)
		12-92721 - Washer - Priced Individually [ More info ] $1.10 10+ in stock.
		18-2359 - Nut Kit [ More info ] $4.60 $2.70 10 in stock.
		18-2343 - Washer, 12-92721 [ More info ] $1.03 $0.76 10+ in stock.
#17	11-35921	NUT, (.625-18) (1 required per assembly)
		11-35921 - Nut - Priced Individually [ More info ] $6.20 10+ in stock.
		18-3719 - Nut, 11-35921, 314730 [ More info ] $5.49 $3.88 3 in stock.
#18	817276 1	FACEPLATE (1 required per assembly)
		817276 1 - Water Pump Face Plate [ More info ] $11.60 Available to order: Usually ships within 10 days.
		18-3122 - Plate, 817276 [ More info ] $10.49 $7.88 10+ in stock.
#19	821759A 4	CARRIER ASSEMBLY (1 required per assembly)
		821759A 4 - 821759A 4 - CARRIER ASSEMBLY [ More info ] Unavailable Replaced by -807929A 1
		807929A 1 - Carrier Assembly [ More info ] $35.25 3 in stock.
		18-2354 - Carrier, 821759A4 [ More info ] $30.99 $28.07 4 in stock.
#20	26-66302	SEAL, Oil (2 required per assembly) SN# 0M400411 & Below
		26-66302 - Seal - Priced Individually [ More info ] $16.10 10+ in stock.
		18-2056 - Seal, 26-96503 1 [ More info ] $14.49 $10.68 10+ in stock.
#20	26-864319	SEAL, Oil (1 required per assembly) SN# 0M400412 & Up
		26-864319 - Seal -double [ More info ] $7.90 10+ in stock.
		18-3289 - Seal, 26-864319 [ More info ] $6.99 $5.16 2 in stock.
#21	25-90011	O-RING, (2.175 x .175) (1 required per assembly)
		25-90011 - 25-90011 - O-RING (2.175 x . [ More info ] Unavailable Replaced by 25-896523
		25-896523 - O-Ring [ More info ] $2.70 10+ in stock.
		18-7176 - O-Ring 25-90011 [ More info ] $2.31 $1.65 10+ in stock.
#22	817275A 1	PUMP ASSEMBLY, Water (1 required per assembly)
		817275A 1 - Housing for Water Pump [ More info ] $81.58 $78.08 6 in stock.
		18-3571 - Water Pump Kit 817275A1 , See Notes on Detail Page [ More info ] $94.99 $85.81 2 in stock.
		18-3570 - Water Pump Kit 817275A1, A2 [ More info ] $65.99 $59.78 10+ in stock.
#23	27-43033 1	GASKET (1 required per assembly)
		27-43033 1 - Gasket [ More info ] $8.90 10+ in stock.
#24	27-817277	GASKET (1 required per assembly)
		27-817277 - 27-817277 - GASKET [ More info ] Unavailable Replaced by 27-817277 1
		27-817277 1 - Gasket [ More info ] $4.50 10+ in stock.
		18-2566-9 - Gasket 27-817277 2-Pack [ More info ] $7.56 $5.71 10+ in stock.
#25	26-816575A 2	SEAL KIT (1 required per assembly)
		26-816575A 2 - Seal Kit [ More info ] $8.50 10+ in stock.
		18-2599 - Seal, 26-816575A 2 [ More info ] $7.99 $5.71 10+ in stock.
#26	10-816928	SCREW, (M6 x 16) (4 required per assembly)
		10-816928 - Screw [ More info ] $1.70 9 in stock.
#27	47-43026 2	IMPELLER (1 required per assembly)
		47-43026 2 - 47-43026 2 - IMPELLER [ More info ] Unavailable Replaced by 47-43026T 2
		47-43026T 2 - Water Pump Impeller [ More info ] $29.58 10+ in stock.
		18-3056 - Impeller 47-43026-2 [ More info ] $24.99 $20.93 10+ in stock.
		47-43026Q02 - Water Pump Impeller [ More info ] $31.00 Available to order: Usually ships within 10 days.
#28	28-43037	KEY (1 required per assembly)
		28-43037 - 28-43037 - KEY [ More info ] Unavailable Replaced by 28-8M0032833
		28-8M0032833 - Key [ More info ] $3.50 4 in stock.
		18-3293 - Key, 28-43037 [ More info ] $3.99 $2.84 7 in stock.
#29	816597A 1	COUPLING ASSEMBLY (1 required per assembly)
		816597A 1 - Coupling Assembly [ More info ] $18.50 Available to order: Usually ships within 10 days.
		96-116-12K - Water Tube Coupling (Early) [ More info ] $10.50 $10.50
#30	25-21836	O-RING, (.796 x .139) (2 required per assembly)
		25-21836 - O-Ring [ More info ] $1.70 10+ in stock.
		18-7153-9 - (PK5) O-Ring 25-25439 [ More info ] $10.80 $8.08 2 in stock.
#31	23-816583	SLEEVE (1 required per assembly)
		23-816583 - Sleeve [ More info ] $8.70 1 in stock.
		18-3222 - Tube, 23-816583 [ More info ] $7.99 $5.92 10+ in stock.
#32	815919A 1	SHIFT SHAFT, Lower (1 required per assembly)
		815919A 1 - SHIFT SHAFT Lower [ More info ] Unavailable
		18-2320 - Shift Shaft [ More info ] $55.49 $50.27 2 in stock.
#33	53-29641	E RING (1 required per assembly)
		53-29641 - E Ring - Priced Individually [ More info ] $1.40 4 in stock.
		18-4295-9 - Clip, 53-29461, 2PK [ More info ] $3.12 $2.05 3 in stock.
#34	12-77674	WASHER (1 required per assembly)
		12-77674 - Washer [ More info ] $1.10 9 in stock.
		18-2316-9 - Washer, 12-77674, 5PK [ More info ] $3.64 2 in stock.
#35	23-815921A13	BUSHING ASSEMBLY (1 required per assembly)
		23-815921A13 - 23-815921A13 - BUSHING ASSEMBLY [ More info ] Unavailable Replaced by 23-815921A20
		23-815921A20 - Bushing Assembly [ More info ] $23.08 In stock
#36	26-89236	SEAL, Oil (1 required per assembly)
		26-89236 - Seal [ More info ] $8.95 10+ in stock.
		26-89236 1 - Seal [ More info ] $13.90 10+ in stock.
		18-2009 - Seal, 26-89236 [ More info ] $12.49 $9.32 10+ in stock.
#37	25-36318	O-RING, (.799) (2 required per assembly)
		25-36318 - O-Ring - Priced Individually [ More info ] $1.30 10+ in stock.
		18-74401 - O-Ring 301967 [ More info ] $2.49 $0.94 Available to order: Usually ships within 10 days.
#38	25-62702	O-RING, (.301 x .070) (1 required per assembly)
		25-62702 - 25-62702 - O-RING (.301 x .0 [ More info ] Unavailable Replaced by 25-62702 1
		25-62702 1 - O-Ring [ More info ] $1.30 10+ in stock.
		18-7413-9 - O-Ring (PK5) 25-62702, 303191 [ More info ] $7.85 $4.23 1 in stock.