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Midwest Sports Center
Power sports vehicles and parts
Parts & Accessories
Schematic diagram
Polaris•Schematic assembly
ENGINE, CYLINDER HEAD, CAM and VALVES - A26SEA50B1/B4 (C102228-3)
Product Description
Schematic assembly from the Polaris parts catalog. Vehicle: 2026 SPORTSMAN 450 50S Assembly ID: 253749
Vehicle Compatibility
- 2026 Polaris SPORTSMAN 450 50S
Checkout Note
Please note that 52 parts are out of stock for this assembly and won't be added. You can also add individual parts to your cart using the table below.
Parts in this assembly
Quantity defaults to the amount required per assembly.
| # | Part # | Description | Qty | Price | Stock | |
|---|---|---|---|---|---|---|
| 1 | 3023627 | ASM-CYLINDER HEAD,1CYL,MACH [INCL. HEAD, GUIDES, CARRIER,SCREWS #5] | 1 | $709.99 | In stock | |
| 2 | 1205960 | ASM-CAMSHAFT,2V | 1 | $244.99 | In stock | |
| 3 | 3022703 | VALVE-INTAKE,47MM | 1 | Price TBD | Out of stock | |
| 4 | 3022704 | VALVE-EXHAUST,38MM | 1 | Price TBD | Out of stock | |
| 5 | 7520460 | SCR-HXFL-M6X1.0X35 10.9 P&O | 4 | $5.99 | Out of stock | |
| 6 | 7662273 | DWL-HOL,M8X8 | 2 | Price TBD | Out of stock | |
| 7 | 3024537 | SEAT-W/SEAL,VALVE SPRING | 2 | Price TBD | Out of stock | |
| 8 | 3022759 | KEEPER, VALVE | 4 | Price TBD | Out of stock | |
| 9 | 5139458-322 | TAPPET, VALVE, GRADED, 4.400 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-325 | TAPPET, VALVE, GRADED, 3.250 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-328 | TAPPET, VALVE, GRADED, 3.275 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-330 | TAPPET, VALVE, GRADED, 3.300 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-332 | TAPPET, VALVE, GRADED, 3.325 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-335 | TAPPET, VALVE, GRADED, 3.350 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-338 | TAPPET, VALVE, GRADED, 3.375 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-340 | TAPPET, VALVE, GRADED, 3.400 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-342 | TAPPET, VALVE, GRADED, 3.425 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-345 | TAPPET, VALVE, GRADED, 3.450 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-348 | TAPPET, VALVE, GRADED, 3.475 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-350 | TAPPET, VALVE, GRADED, 3.500 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-352 | TAPPET, VALVE, GRADED, 3.525 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-355 | TAPPET, VALVE, GRADED, 3.550 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-358 | TAPPET, VALVE, GRADED, 3.575 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-360 | TAPPET, VALVE, GRADED, 3.600 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-362 | TAPPET, VALVE, GRADED, 3.625 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-365 | TAPPET, VALVE, GRADED, 3.650 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-368 | TAPPET, VALVE, GRADED, 3.675 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-370 | TAPPET, VALVE, GRADED, 3.700 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-372 | TAPPET, VALVE, GRADED, 3.725 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-375 | TAPPET, VALVE, GRADED, 3.750 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-378 | TAPPET, VALVE, GRADED, 3.775 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-380 | TAPPET, VALVE, GRADED, 3.800 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-382 | TAPPET, VALVE, GRADED, 3.825 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-385 | TAPPET, VALVE, GRADED, 3.850 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-388 | TAPPET, VALVE, GRADED, 3.875 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-390 | TAPPET, VALVE, GRADED, 3.900 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-392 | TAPPET, VALVE, GRADED, 3.925 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-395 | TAPPET, VALVE, GRADED, 3.950 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-398 | TAPPET, VALVE, GRADED, 3.975 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-400 | TAPPET, VALVE, GRADED, 4.000 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-402 | TAPPET, VALVE, GRADED, 4.025 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-405 | TAPPET, VALVE, GRADED, 4.050 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-408 | TAPPET, VALVE, GRADED, 4.075 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-410 | TAPPET, VALVE, GRADED, 4.100 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-412 | TAPPET, VALVE, GRADED, 4.125 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-415 | TAPPET, VALVE, GRADED, 4.150 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-418 | TAPPET, VALVE, GRADED, 4.175 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-420 | TAPPET, VALVE, GRADED, 4.200 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-422 | TAPPET, VALVE, GRADED, 4.225 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-425 | TAPPET, VALVE, GRADED, 4.250 | 0 | Price TBD | Out of stock | |
| 9 | 5139458-428 | TAPPET, VALVE, GRADED, 4.275 | 0 | Price TBD | Out of stock | |
| 10 | 5139720 | RETAINER-VALVE SPRING | 2 | Price TBD | Out of stock | |
| 11 | 7046205 | SPRING-VALVE | 2 | Price TBD | Out of stock | |
| 12 | 7520144 | SCREW-HXFL-M11X1.25X150 SAE4037 | 4 | $16.99 | In stock | |
| 13 | 5814301 | GASKET-CYL HEAD,1 CYL,93MM | 1 | $69.99 | In stock | |
| 14 | 7519153 | SCR-HXFLG,M6X1.0X90 | 2 | Price TBD | Out of stock |