Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
2	2 3610030 Seal, oil(10) 10;	3610030	US $14.42
3	3 7515551 Screw 10;	7515551	US $5.22
4	4 7542404 Nut 10;	7542404	US $5.25
5	5 3514309 Bearing,ball #6205	3514309	US $34.81
6	6 7718406 Ring,retaining 10;	7718406	US $6.14
7	7 1332096 Tightener asm,gearcase	1332096	—
	replacement
7	7 1332213 Tightener,chaincase	1332213	US $103.97
7	7 3553002 Bearing	3553002	US $10.85
7	7 5630122 Block,tightener No Longer Available;	5630122	—
7	7 5630123 Wheel,c/c idler	5630123	US $21.96
7	7 7558702 Washer thrust 10;	7558702	US $2.45
7	7 7662210 Pin,chain tightener	7662210	—
8	8 3221089 Spkt,22t,3/4w,15t spline	3221089	—
	replacement
8	8 2900006 Spkt,cm,22t,3/4w,15t,spl,hyvo	2900006	—
9	9 7571620 Washer, spring 10;	7571620	US $6.69
10	10 7542811 Nut, flexloc	7542811	—
11	11 7661401 Pin,cotter(10) 10;	7661401	US $3.94
12	12 5410277 Gasket-chaincase	5410277	US $11.24
13	13 5630413 Cover, chaincase	5630413	—
	replacement
13	13 5630968 Cover-chaincase,cast,6,625	5630968	US $168.39
14	14 7076764 Decal,caut.spkt/chain	7076764	—
15	15 7512242 Screw(10) 10;	7512242	US $0.79
16	16 7515350 Screw 10;	7515350	—
17	17 7571618 Washer,spring 10;	7571618	US $5.22
18	18 3224070 Chain,68p,3/4w,hyvo	3224070	—
	replacement
18	18 3221112 Chain,hyvo 68 p,3/4w	3221112	US $161.05
19	19 3222095 Spkt,41t,3/4w,15t spl,hyvo	3222095	—
	replacement
19	19 2900014 New Genuine Part	2900014	—
20	20 7542451 Nut, nylok(10) * 10;	7542451	—
21	21 7052115 Plug(10) 10;	7052115	US $94.50
22	22 5131568 Chaincase-w/ratchet mnt	5131568	—
23	23 7515477 Screw, carriage 10;	7515477	US $4.43

Chaincase (0982761) Diagram Polaris Trail General 1559995-151516