Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
1	1 815013T12 Cylinder Block Assembly	815013T12	US $844.86
2	2 16119 Pin, dowel	16119	US $6.72
3	3 810755010 Bolt	810755010	US $3.14
	replacement
3	3 850879001 Bolt	850879001	US $3.14
4	4 898101363 Bolt	898101363	US $4.18
5	5 879194338 Washer	879194338	US $2.90
	replacement
5	5 16826 Washer, stainless steel	16826	US $3.40
6	6 896851005 Decal, recommended oil	896851005	—
7	7 898103T43 New Genuine Part	898103T43	US $70.22
8	8 898101323 Gasket, cylinder head cover	898101323	US $10.97
9	9 166954 Bolt	166954	US $3.94
9	9 16832 Bolt	16832	US $3.82
10	10 953921 Washer, stainless steel	953921	US $5.73
11	11 804540 New Genuine Part	804540	US $63.61
12	12 898101278 New Genuine Part	898101278	US $52.22
13	13 898101279 Gasket, thermostat cap	898101279	US $5.57
14	14 803563005 Clamp	803563005	US $4.99
15	15 879194264 Bolt	879194264	US $3.82
16	16 803507 Spark plug, ngk#dcpr6e	803507	US $11.03
17	17 898101296 New Genuine Part	898101296	US $7.18
18	18 898101314 New Genuine Part	898101314	US $31.66
19	19 803563005 Clamp	803563005	US $4.99
20	20 879194263 Bolt	879194263	US $3.36
	replacement
20	20 823042 Bolt	823042	US $3.36
21	21 898101282 Hose, breather	898101282	US $13.10
22	22 952245 Clamp	952245	US $2.78
23	23 898103T44 New Genuine Part	898103T44	US $9.97
24	24 898101280 Gasket, breather chamber cover	898101280	US $5.22
25	25 8248324 Screw	8248324	US $1.80
NI	NI 898103A67 Gasket Set Powerhead	898103A67	US $127.66
NI	NI 823825T08 Short block [0R318096] & Up	823825T08	—

Cylinder Block Non-Epa Models-Serial # 0R448033 And Up Diagram Mercury-Mercruiser F2.5 18231934-945618