Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
0	0 8833T33 Gear Housing Assembly Complete (2.60 Inch/102 Mm Torpedo Diameter) (Short - Black)	8833T33	US $1,518.99
0	0 8833T35 Gear Housing Assembly Complete (2.60 Inch/102 Mm Torpedo Diameter) (Long - Black)	8833T35	US $1,965.71
1	1 8833A17 Gear Housing Assembly Basic-Black (Basic - Black)	8833A17	US $647.89
	replacement
1	1 8M0083312 GC BASIC9.9/15 4S (Basic - Black)	8M0083312	US $647.89
2	2 821321A1 Roller bearing	821321A1	US $42.59
3	3 NSS Not Sold Separate O-Ring	NSS	—
4	4 821924A1 Forward gear (13/26)	821924A1	US $306
5	5 41367 Bushing	41367	US $5.76
6	6 813139 New Genuine Part	813139	US $10.08
7	7 821930A1 Clutch Assembly	821930A1	—
8	8 823951 Cross pin	823951	US $4.53
9	9 42204 Spring	42204	US $0.82
10	10 821929 Propeller shaft	821929	US $417.22
11	11 821926T1 Reverse gear (13/26)	821926T1	US $262.56
12	12 42144T3 BEARING CARRIER	42144T3	US $191.06
13	13 33145 O-ring	33145	US $3.93
	replacement
13	13 8M0214923 O-ring	8M0214923	US $3.93
14	14 821927 Bushing	821927	US $9.88
15	15 99325 Seal	99325	US $19.75
16	16 821928 Oil seal	821928	US $22.41
17	17 82407110 Screw	82407110	US $5.92
18	18 8240717 Screw	8240717	US $4.40
19	19 828156A12 Propeller 3х9х9R	828156A12	US $138.41
20	20 40140 Nut	40140	US $3.50
21	21 8219321 New Genuine Part	8219321	US $8.56
22	22 420911 Spacer	420911	—
NI	NI 41365A3 Seal kit	41365A3	US $72.32

Gear Housing Propeller Shaft - 2.00:1 Gear Ratio Diagram Mercury-Mercruiser F9.9 18232758-945645