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Parts list

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	Description	OEM Part #	Price
1	1 3402-419 Crankshaft assembly Inc. 2-7; 250 inc. 2-6 ;	3402-419	US $1,056.66
2	2 3402-418 Rod 250; connecting	3402-418	US $191.67
3	3 3402-529 Pin Crank	3402-529	US $54.84
4	4 3402-406 Bearing 250	3402-406	US $98.29
5	5 3402-421 Crankshaft 250; left	3402-421	US $466.45
	replacement
5	5 3402-802 Crankshaft Lh	3402-802	US $466.45
6	6 3402-420 Crankshaft	3402-420	—
7	7 3402-423 Piston set +0.5 mm; 250 Oversized 0.50 mm ;	3402-423	US $230.81
7	7 3402-424 Piston set +1.0 mm; 250 Oversized 1.00 mm ;	3402-424	US $201.71
8	8 3402-216 Bearing Right	3402-216	US $43.09
9	9 3402-221 Bearing Middle	3402-221	US $119.99
10	10 3402-180 Bearing Sub transmission	3402-180	US $109.43
	replacement
10	10 3402-055 Bearing set Right	3402-055	US $109.43
11	11 3423-053 O-ring	3423-053	US $5.79
12	12 3402-428 Gear 250; oil pump drive	3402-428	US $70.72
13	13 3423-114 Pin	3423-114	US $4.06
14	14 3402-415 Piston 250	3402-415	US $166.18
15	15 3402-416 Ring set 250; piston	3402-416	US $83.50
15	15 3436-013 Ring set +0.5 mm; 250; piston Oversized 0.50 mm ;	3436-013	US $81.11
15	15 3436-014 Ring set +1.0 mm; 250; piston Oversized 1.00 mm ;	3436-014	US $91.87
16	16 3402-417 Pin 250; piston	3402-417	US $32.54
17	17 3423-366 Circlip 250	3423-366	US $3.28
18	18 3402-227 Seal Oil	3402-227	US $35.92

Crankshaft assembly Diagram Arctic Cat ATV 250/300 250 2X4 Green General 10960358-697068