Parts for Mercury Marine 25 HP (2 Cylinder) Gear Housing (Driveshaft) (2.25:1 Gear Ratio)

Revise Search: All Models > 25 HP (2 Cylinder) > 1B000001 & Up (USA) > Gear Housing (Driveshaft) (2.25:1 Gear Ratio)

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• View diagram and parts list below.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

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COMPLETE GEARCASE?
• Aftermarket gearcase may be available for less than $900 USD. 70 HP+ only. Please call.

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 ]

#-	1665-8669T26	GEAR HOUSING ASSEMBLY (Short - Black) (1 required per assembly) (3.30 Inch/130 mm Torpedo Diameter)
		1665-8669T26 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#-	1665-8669T28	GEAR HOUSING ASSEMBLY (Long - Black) (1 required per assembly) (3.30 Inch/130 mm Torpedo Diameter)
		1665-8669T28 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable
#1	1665-8669A21	GEAR HOUSING ASSEMBLY, Basic-Black (Black) (1 required per assembly)
		1665-8669A21 - 1665-8669A21 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1600-8M0083538
		16008M0083538 - Gearcase Basic 25 2S [ More info ] $584.00 Available to order: Usually ships within 8 days.
#2	41121	SLEEVE (1 required per assembly)
		41121 - Sleeve [ More info ] $31.33 Available to order: Usually ships within 8 days.
#3	26-99325	SEAL (2 required per assembly)
		26-99325 - Seal [ More info ] $13.70 4 in stock.
		18-0586 - Seal, 26-99325 [ More info ] $12.49 $9.73 8 in stock.
#4	31-41326	BEARING, Roller (1 required per assembly)
		31-41326 - Bearing [ More info ] $17.20 $14.73 3 in stock.
#5	17-85500	PIN, Dowel (.187 x .530) (2 required per assembly)
		17-85500 - Pin -Dowel [ More info ] $3.00 10+ in stock.
		178M0084726 - Pin - Dowel [ More info ] $3.60 Available to order: Usually ships within 8 days.
#6	10-79953Q 2	SCREW KIT, (.375-16 x .250) Drain (1 required per assembly)
		10-79953Q 2 - 10-79953Q 2 - SCREW KIT (.375-1 O [ More info ] Unavailable Replaced by 10-79953Q04
		10-79953Q04 - Screw Kit - Priced Individually [ More info ] $5.80 10+ in stock.
		18-2244 - Plug Kit, 10-79953A2 [ More info ] $2.99 $2.07 10+ in stock.
		10-79953K04 - Drain Screw - Priced Individually [ More info ] $5.80 3 in stock.
#7	12-19183 3	SEAL (1 required per assembly)
		12-19183 3 - Seal -Blue - Priced Individually [ More info ] $1.00 10+ in stock.
		18-2945-9 - Gasket 12-19183 2-Pack [ More info ] $2.78 $1.52 10+ in stock.
		12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] $5.10 10+ in stock.
		12-19183K02 - Seal, Pack of 4 [ More info ] $5.10 10+ in stock.
#8	35-41133	SCREEN, Water Inlet Port (1 required per assembly)
		35-41133 - Screen [ More info ] $4.80 10+ in stock.
#9	10-40031112	SCREW, (M5 x 40) (1 required per assembly)
		10-40031112 - Screw - Priced Individually [ More info ] $2.20 10+ in stock.
#10	22-67892A05	PLUG KIT, Drain (Magnetic) (1 required per assembly) (Magnetic)
		22-67892A05 - 22-67892A05 - PLUG KIT Drain (M O [ More info ] Unavailable Replaced by 22-67892A06
		22-67892A06 - 22-67892A06 - PLUG KIT Drain - O [ More info ] Unavailable Replaced by 22-8M0058389
		22-8M0058389 - Screw Kit - Priced Individually [ More info ] $6.33 10+ in stock.
		18-23751-9 - Drain Screw , Package of 50 - Special Order - No Returns [ More info ] $400.33 $284.06 Available to order: Usually ships within 8 days.
		18-2375 - Plug, 22-67892A1 [ More info ] $6.99 $4.59 10+ in stock.
#11	12-19183 2	WASHER (1 required per assembly)
		12-19183 2 - 12-19183 2 - WASHER O [ More info ] Unavailable Replaced by 12-19183 3
#12	35-41134	SCREEN (1 required per assembly)
		35-41134 - Screen [ More info ] $4.80 9 in stock.
#13	11-40136 5	NUT, (M5) Stainless Steel (1 required per assembly)
		11-40136 5 - Nut - Priced Individually [ More info ] $3.00 1 in stock.
#14	31-98294A 1	BEARING ASSEMBLY, Roller (1 required per assembly)
		31-98294A 1 - Bearing Kit [ More info ] $28.09 10+ in stock.
#15	NSS	NOT SOLD SEPARATE, Cup (1 required per assembly)
		NSS - NOT SOLD SEPARATE O [ More info ] Unavailable
#16	10-49908	SCREW, (.250-28 x .750) (1 required per assembly)
		10-49908 - Screw - Priced Individually [ More info ] $2.00 10+ in stock.
#17	43-98302	GEAR, Pinion (12 Teeth) (1 required per assembly)
		43-98302 - Pinion Gear [ More info ] $123.50 2 in stock.
#18	27-99326 1	GASKET (1 required per assembly)
		27-99326 1 - Gasket [ More info ] $1.50 3 in stock.
#19	85083	FACE PLATE (1 required per assembly)
		85083 - Face Plate [ More info ] $10.40 Available to order: Usually ships within 8 days.
#20	12-86645 1	WASHER (1 required per assembly)
#21	28-85119	KEY (1 required per assembly)
		28-85119 - 28-85119 - KEY O [ More info ] Unavailable Replaced by 28-8M0032838
		28-8M0032838 - Key - Priced Individually [ More info ] $2.60 10+ in stock.
#22	47-85089 10	IMPELLER (1 required per assembly)
		47-85089 10 - Impeller [ More info ] $22.33 10+ in stock.
		18-3057 - Impeller 47-85089-3 [ More info ] $19.99 $13.58 10+ in stock.
#24	25-69202	O-RING (1 required per assembly)
		25-69202 - O-Ring - Priced Individually [ More info ] $2.90 10+ in stock.
		18-7419-9 - O-Ring (PK5) 25-69202 [ More info ] $14.93 $11.03 Available to order: Usually ships within 8 days.
#25	46-99157A02	PUMP ASSEMBLY, Water (1 required per assembly)
		46-99157A02 - Water Pump Housing [ More info ] $58.80 $50.35 In stock
#27	26-85090001	SEAL (1 required per assembly)
		26-85090001 - Seal - Priced Individually [ More info ] $4.70 10+ in stock.
#28	25-86203	O-RING, Rubber (1 required per assembly)
		25-86203 - O-Ring - Priced Individually [ More info ] $1.10 10+ in stock.
#29	10-824832 4	SCREW, (M6 x 16) (4 required per assembly)
		10-824832 4 - Screw [ More info ] $1.30 10 in stock.
#30	12-29245	WASHER, (.281 x .500 x .060) Stainless Steel (1 required per assembly)
		12-29245 - Washer [ More info ] $0.90 10+ in stock.
		18-4275 - SS Washer [ More info ] $1.99 $1.46 4 in stock.
#31	85126 3	SHIFT SHAFT (1 required per assembly) (Short Shaft)
#31	86293 3	SHIFT SHAFT (1 required per assembly) (Long Shaft)
		86293 3 - SHIFT SHAFT O NLA [ More info ] Unavailable
#32	45-99199	DRIVESHAFT (1 required per assembly) (Short Shaft)
		45-99199 - Drive Shaft [ More info ] $416.67 Available to order: Usually ships within 8 days.
#32	45-99198	DRIVESHAFT (1 required per assembly) (Long Shaft)
		45-99198 - Drive Shaft [ More info ] $332.83 Available to order: Usually ships within 8 days.
#33	85552001	BOOT (1 required per assembly)
		85552001 - Boot [ More info ] $3.60 Available to order: Usually ships within 8 days.
		18-2742 - Boot [ More info ] $3.94 $2.93 2 in stock.
#34	93878	RETAINER (1 required per assembly)
		93878 - Shift Retainer [ More info ] $9.60 Available to order: Usually ships within 8 days.
#35	25-35276	O-RING, (.734 x .139) (1 required per assembly) (.734 x .139)
		25-35276 - O-Ring [ More info ] $1.60 Available to order: Usually ships within 8 days.
		18-7135 - O-Ring 25-35276 [ More info ] $2.49 $1.41 Available to order: Usually ships within 8 days.
#36	25-85594	O-RING, (.239 x .174) (1 required per assembly) (.239 x .174)
		25-85594 - O-Ring - Priced Individually [ More info ] $1.30 10+ in stock.
		18-7100-9 - O-Ring (PK5) 301877 [ More info ] $9.95 $7.10 8 in stock.
#37	12-85091	WASHER (1 required per assembly)
		12-85091 - Washer - Priced Individually [ More info ] $2.60 Available to order: Usually ships within 8 days.
#38	24-93007	SPRING (1 required per assembly)
		24-93007 - Spring [ More info ] $3.40 Available to order: Usually ships within 8 days.
#40	17-85593	PIN, (.078 x .437) (1 required per assembly)
		17-85593 - Pin (.078 x .437) [ More info ] $3.00 Available to order: Usually ships within 8 days.
#41	85562A 2	SHIFT CAM (1 required per assembly)
		85562A 2 - Shift Cam Kit [ More info ] $26.34 Available to order: Usually ships within 8 days.
#42	17-85096	PIN, Drive (1 required per assembly)
		17-85096 - Pin - Drive [ More info ] $3.70 Available to order: Usually ships within 8 days.
#43	23-29804T	SLEEVE (1 required per assembly)
		23-29804T - Sleeve - Priced Individually [ More info ] $6.40 10+ in stock.
		18-3109 - Tube 23-29804 [ More info ] $5.49 $4.16 10+ in stock.
#-	27-41499A88	GASKET SET (1 required per assembly)
		27-41499A88 - Gasket Set [ More info ] $121.70 $104.20 Available to order: Usually ships within 8 days.
		18-4334 - Powerhead Gasket Set [ More info ] $109.49 $88.58 1 in stock.
#-	26-85090A 2	SEAL KIT (1 required per assembly)
		26-85090A 2 - Seal Kit [ More info ] $88.70 $75.95 2 in stock.
		18-2624 - Seal Kit, 26-85090A2 [ More info ] $73.99 $58.12 10+ in stock.
#-	46-99157T 2	PUMP KIT, Water (1 required per assembly)
		46-99157T 2 - Water Pump Kit [ More info ] $84.24 6 in stock.