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

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

#	1623-815822A52	GEAR HOUSING ASSEMBLY, Counter Rotation (COMPLETE) (1 required per assembly) (2.00:1 RATIO)
		1623-815822A52 - Gear Housing Assembly [ More info ] Unavailable
#	26-816575A 3	SEAL KIT, Gear Housing (AR required per assembly)
		26-816575A 3 - Seal Kit [ More info ] $107.92 In Stock
		18-2646-1 - Seal Kit, 26-816575A3 [ More info ] $88.58 10+ In Stock.
#	817275A 4	REBUILD KIT, Water Pump (AR required per assembly)
		817275A 4 - Water Pump Rebuild Kit [ More info ] Unavailable
		817275Q 4 - Water Pump Rebuild Kit [ More info ] Unavailable
		817275Q05 - Water Pump Rebuild Kit [ More info ] $190.75 In Stock
		18-3147 - Water Pump Kit 817275T4 and 817275Q4 [ More info ] $158.99 $138.27 10+ In Stock.
		817275K05 - Water Pump Rebuild Kit [ More info ] $190.75 1 In Stock.
#	1623-815822A47	GEAR HOUSING ASSEMBLY, Counter Rotation (COMPLETE) (1 required per assembly) (1.47:1 - 1.62:1 - 1.81:1 - 1.94:1 RATIO)
		1623-815822A47 - Gear Housing Assembly [ More info ] Unavailable
		90-118-02 - SE116 Lower Unit Mercruiser Alpha One Gen II, Counter Rotation, See Detail Page [ More info ] $1275.00 $1275.00 Available to Order
		90-116-02 - SE116 Lower Unit Mercruiser Alpha One Gen II, Std Rotation, See Detail Page [ More info ] $1075.00 $1075.00 Available to Order
#	26-88397A 1	SEAL KIT, Driveshaft Housing (AR required per assembly)
		26-88397A 1 - Seal Kit [ More info ] $48.50 In Stock
		18-2644 - Seal Kit, 26-88397A1 [ More info ] $42.99 $39.06 10+ In Stock.
#1	1623-815822A36	GEAR HOUSING ASSEMBLY (1 required per assembly)
		1623-815822A36 - Gear Housing Assembly [ More info ] $1,812.86 Available to Order: Usually ships within 10 days.
#2	821526	FILLER BLOCK (1 required per assembly)
		821526 - Filler Block [ More info ] Unavailable
		821526001 - Filler Block [ More info ] $18.30 In Stock
#3	17-37972 1	PIN (1 required per assembly)
		17-37972 1 - Pin [ More info ] $3.50 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 ] $18.67 Available to Order: Usually ships within 10 days.
#4	10-806327	SCREW, (.437-14 x 1.750) (1 required per assembly)
		10-806327 - Screw [ More info ] Unavailable
		10-8M0204686 - Trim Tab ANODE SCREW O/B ZZ [ More info ] $6.70 Available to Order: Usually ships within 10 days.
#5	22-67892A 1	FITTING KIT, Magnetic, Plug Fill/Drain (1 required per assembly)
		22-67892A 1 - Drain Plug [ More info ] Unavailable
		22-67892A05 - Drain Plug Kit [ More info ] Unavailable
		22-67892A06 - Drain Plug Kit [ More info ] Unavailable
		22-8M0058389 - Screw Kit - Priced Individually [ More info ] $10.30 10+ In Stock.
		18-23751-9 - Drain Screw , Package of 50 [ More info ] $338.69 $294.70 In Stock
		18-2375 - Plug, 22-67892A1 [ More info ] $6.99 $6.69 10+ In Stock.
#6	12-19183	WASHER, Fiber (1 required per assembly)
		12-19183 - Washer (3/8 Inch Screw) [ More info ] Unavailable
		12-19183 2 - Washer - Priced Individually [ More info ] Unavailable
		12-19183 3 - Seal -Blue - Priced Individually [ More info ] $1.40 10+ In Stock.
		18-2945-9 - Gasket 12-19183 2-Pack [ More info ] $2.29 4 In Stock.
		12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] $6.40 10+ In Stock.
		12-19183K02 - Seal, Pack of 4 [ More info ] $6.40 10+ In Stock.
#7	26-45577 1	SEAL (1 required per assembly)
		26-45577 1 - Seal - Priced Individually [ More info ] $4.10 10+ In Stock.
		18-2944-9 - Gasket 26-45577 2-Pack [ More info ] $5.99 $5.50 9 In Stock.
#8	17-43044	PIN, Dowel - Without Hole (.375 x .625) (2 required per assembly)
		17-43044 - Pin -Dowel-solid [ More info ] $2.40 1 In Stock.
#9	31-42647A 1	BEARING ASSEMBLY, Roller (1 required per assembly)
		31-42647A 1 - Roller Bearing - Drive Shaft [ More info ] $65.03 4 In Stock.
		18-1117 - Bearing, 387817, 31-42647A1 [ More info ] $53.99 $48.91 In Stock
#10	11-817618	NUT, (.437-20) (1 required per assembly)
		11-817618 - Nut (7/16-20) [ More info ] Unavailable
		11-859135 - Nut (7/16-20) [ More info ] $5.90 10+ In Stock.
#11	45-853648	DRIVESHAFT (1 required per assembly) (1.47:1 AND 1.62:1 RATIO)
		45-853648 - Drive Shaft [ More info ] Unavailable
		45-8M0140449 - Drive Shaft [ More info ] $713.64 Available to Order: Usually ships within 10 days.
#11	45-853647	DRIVESHAFT (1 required per assembly) (1.81:1 - 1.94:1 AND 2.00:1 RATIO)
		45-853647 - Drive Shaft [ More info ] Unavailable
#12	15-42637A 1	SHIM SET (AR required per assembly)
		15-42637A 1 - Shim Set [ More info ] $17.77 10+ In Stock.
#13	31-33138A 1	BEARING ASSEMBLY, Tappered Roller (1 required per assembly)
		31-33138A 1 - Tapered Roller Bearing [ More info ] $72.36 1 In Stock.
#14	853651	RETAINER (1 required per assembly)
		853651 - Bearing Retainer [ More info ] $13.50 Available to Order: Usually ships within 10 days.
#15	NSS	NOT SOLD SEPARATE, GEAR-Pinion (1 required per assembly) (SEE FORWARD GEAR ASSEMBLY)
		NSS - NOT SOLD SEPARATE [ More info ] Unavailable
#16	12-92721	WASHER (1 required per assembly)
		12-92721 - Washer, Pinion Gear [ More info ] $1.40 $0.78 10+ In Stock.
		18-2359 - Nut Kit [ More info ] $5.19 $2.97 Available to Order: Usually ships within 10 days.
		18-2343-9 - Washer, 12-92721, 2PK [ More info ] $2.79 Available to Order: Usually ships within 10 days.
#17	11-35921	NUT, (.625-18) (1 required per assembly)
		11-35921 - Nut, (.625-18) [ More info ] $7.70 10+ In Stock.
		18-3719 - Nut, 11-35921, 314730 [ More info ] $4.99 $4.51 4 In Stock.
#18	817276 1	FACEPLATE (1 required per assembly)
		817276 1 - Water Pump Face Plate [ More info ] Unavailable
#19	821759A 4	CARRIER ASSEMBLY (1 required per assembly)
		821759A 4 - Carrier Assembly [ More info ] Unavailable
		807929A 1 - Carrier Assembly [ More info ] Unavailable
		18-2354 - Carrier, 821759A4 [ More info ] $36.99 $33.51 10+ In Stock.
#20	26-66302	SEAL, Oil (2 required per assembly) SN# 0M400411 & Below
		26-66302 - Seal - Priced Individually [ More info ] $19.50 10+ In Stock.
		26-8M0214939 - SEAL @3 [ More info ] In Stock
		18-2056 - Seal, 26-96503 1 [ More info ] $14.99 $13.36 3 In Stock.
#20	26-864319	SEAL, Oil (1 required per assembly) SN# 0M400412 & Up
		26-864319 - Seal -double [ More info ] $9.60 10+ In Stock.
		18-3289 - Seal, 26-864319 [ More info ] $6.99 $4.73 Available to Order: Usually ships within 10 days.
#21	25-90011	O-RING, (2.175 x .175) (1 required per assembly)
		25-90011 - Drive Shaft Cover O-Ring [ More info ] $1.39 10+ In Stock.
		25-896523 - O-ring, (2.175 X .103) [ More info ] Unavailable
		25-8M0142854 - O-Ring [ More info ] $1.10 Available to Order: Usually ships within 10 days.
#22	817275A 1	PUMP ASSEMBLY, Water (1 required per assembly)
		817275A 1 - Housing for Water Pump [ More info ] $98.67 In Stock
		18-3570 - Water Pump Kit 817275A1, A2 [ More info ] $90.99 $82.22 10+ In Stock.
#23	27-43033 1	GASKET (1 required per assembly)
		27-43033 1 - Face Plate To Cover Gasket [ More info ] $10.70 10+ In Stock.
#24	27-817277	GASKET (1 required per assembly)
		27-817277 - Impeller Housing Gasket [ More info ] Unavailable
		27-817277 1 - Gasket -Sold each [ More info ] $5.50 9 In Stock.
		18-2566-9 - Gasket 27-817277 2-Pack [ More info ] $7.99 $7.30 10+ In Stock.
#25	26-816575A 2	SEAL KIT (1 required per assembly)
		26-816575A 2 - Seal Kit [ More info ] $10.50 10+ In Stock.
		18-2599 - Seal, 26-816575A 2 [ More info ] $7.59 Available to Order: Usually ships within 10 days.
#26	10-816928	SCREW, (M6 x 16) (4 required per assembly)
		10-816928 - Screw [ More info ] $2.30 1 In Stock.
#27	47-43026 2	IMPELLER (1 required per assembly)
		47-43026 2 - Water Pump Impeller [ More info ] Unavailable
		47-43026T 2 - Water Pump Impeller [ More info ] $37.08 10+ In Stock.
		18-3056 - Impeller 47-43026-2 [ More info ] $26.99 $22.62 10+ In Stock.
		47-43026Q02 - Water Pump Impeller [ More info ] $37.08 Available to Order: Usually ships within 10 days.
#28	28-43037	KEY (1 required per assembly)
		28-43037 - Key [ More info ] Unavailable
		28-8M0032833 - Key [ More info ] Unavailable
		288M0204723 - KEY Note: Priced Individually [ More info ] $4.20 3 In Stock.
		18-3293 - Key, 28-43037 [ More info ] $5.99 $5.45 5 In Stock.
#29	816597A 1	COUPLING ASSEMBLY (1 required per assembly)
		816597A 1 - Coupling Assembly [ More info ] $20.80 In Stock
#30	25-21836	O-RING, (.796 x .139) (2 required per assembly)
		25-21836 - O-ring, (.796 X .139) [ More info ] $2.30 1 In Stock.
		25-8M0204645 - O RING [ More info ] $2.30 9 In Stock.
		18-7153-9 - (PK5) O-Ring 25-25439 [ More info ] $8.99 2 In Stock.
#31	23-816583	SLEEVE (1 required per assembly)
		23-816583 - Sleeve [ More info ] $10.70 2 In Stock.
		18-3222 - Tube, 23-816583 [ More info ] $9.59 6 In Stock.
#32	815919A 1	SHIFT SHAFT, Lower (1 required per assembly)
		815919A 1 - Shaft Kit - Shift [ More info ] Unavailable
		18-2320 - Shift Shaft [ More info ] $65.99 $60.08 1 In Stock.
#33	53-29641	E RING (1 required per assembly)
		53-29641 - E Ring - Priced Individually [ More info ] $1.70 4 In Stock.
		18-4295-9 - Clip, 53-29461, 2PK [ More info ] $2.59 $2.17 4 In Stock.
#34	12-77674	WASHER (1 required per assembly)
		12-77674 - Washer, Rubber [ More info ] $1.70 Available to Order: Usually ships within 10 days.
		18-2316-9 - Washer, 12-77674, 5PK [ More info ] $4.69 $4.23 1 In Stock.
#35	23-815921A13	BUSHING ASSEMBLY (1 required per assembly)
		23-815921A13 - BUSHING ASSY [ More info ] Unavailable
		23-815921A20 - Bushing Assembly [ More info ] $28.00 In Stock
#36	26-89236	SEAL, Oil (1 required per assembly)
		26-89236 - Seal [ More info ] $12.21 10+ In Stock.
		26-89236 1 - Seal [ More info ] $17.00 10+ In Stock.
		18-2009 - Seal, 26-89236 [ More info ] $11.99 $11.31 10+ In Stock.
#37	25-36318	O-RING, (.799) (2 required per assembly)
		25-36318 - O-ring, (.799) [ More info ] $1.60 10+ In Stock.
		25-8M0214927 - O RING @5 [ More info ] Unavailable
		18-7440-1-9 - O-Ring (PK2) [ More info ] $3.99 $3.37 Available to Order: Usually ships within 10 days.
#38	25-62702	O-RING, (.301 x .070) (1 required per assembly)
		25-62702 - O-ring, (.301 X .070) [ More info ] Unavailable
		25-62702 1 - O-Ring [ More info ] $1.60 10+ In Stock.
		18-7413-9 - O-Ring (PK5) 25-62702, 303191 [ More info ] $4.99 $4.73 2 In Stock.