Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
1	1 855767T90 Hsg assy-pump	855767T90	US $3,382.86
2	2 878377 Linkage kit-shift	878377	US $274.67
3	3 878382 New Genuine Part	878382	US $80.11
4	4 878380 Gate-reverse	878380	US $596.45
5	5 827490 Hose, lube	827490	US $88.78
6	6 848497 Screw	848497	US $7.65
7	7 855840 Stud	855840	US $7.42
8	8 82670910 Nut, stainless steel	82670910	US $6.14
9	9 85576890 Hsg assy-intake	85576890	US $1,529.12
10	10 855771 New Genuine Part	855771	US $253.10
11	11 85576990 Driveshaft	85576990	US $2,058.64
12	12 8796522 Thrust washer	8796522	US $37.57
13	13 8796531 Bearing, ball	8796531	US $228.78
14	14 8271891 Sleeve	8271891	US $41.82
15	15 8271901 Nut	8271901	US $46.36
16	16 808747 New Genuine Part	808747	US $205.89
17	17 855708115 Impeller	855708115	US $560.24
18	18 36001 Washer, water pump body screw	36001	US $1.15
19	19 801405875 Key	801405875	US $30.04
20	20 801404875 Shim	801404875	US $10.08
21	21 801403875 Tab washer	801403875	US $13.48
22	22 801407 Pin-dowel	801407	US $11.47
23	23 19923062 Screw	19923062	US $4.18
24	24 60411 Screw	60411	US $1.28
25	25 801410 New Genuine Part	801410	US $62.56
26	26 82670910 Nut, stainless steel	82670910	US $6.14
27	27 4010860 Screw, hex flange - stainless steel	4010860	US $9.50
28	28 4010890 Screw, hex flange - stainless steel	4010890	US $26.67
29	29 4010870 Screw, hex flange - stainless steel	4010870	US $25.04
30	30 843575 Screw	843575	US $7.65
31	31 856774 Washer, stainless steel	856774	US $2.09
NI	NI 856143A1 Jet pump	856143A1	—

Jet Pump Assembly Diagram Mercury-Mercruiser 80 18256792-946543