Polaris TRAIL BOSS 250 - W918527 1991
ATV · Polaris · 1991 · OEM parts catalogue with diagrams, OEM part numbers and full parts lists.
- 31 assemblies
- 944 OEM parts
- 60 parts listed here
Open full catalogue & all parts
Assemblies (diagram groups)
- AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A)22 parts
- BODY ASSEMBLY Trail Boss - Update (4919771977001A)68 parts
- CARBURETOR ASSEMBLY Trail Boss - Update (4919771977036A)31 parts
- CLUTCH COVER ASSEMBLY Trail Boss - Update (4919771977020A)28 parts
- CONTROL ASSEMBLY TRAIL BOSS (4919771977013A)42 parts
- CRANKCASE and CYLINDER Trail Boss - Update (4919771977033A)39 parts
- CRANKSHAFT and PISTON Trail Boss - Update (4919771977034A)27 parts
- DRIVE CLUTCH ASSEMBLY Trail Boss - Update (4919771977023A)18 parts
- DRIVEN CLUTCH ASSEMBLY Trail Boss - Update (4919771977024A)13 parts
- ENGINE and MUFFLER MOUNTING Trail Boss - Update (4919771977005A)64 parts
- FAN MOTOR Trail Boss - Update (4919771977041A)5 parts
- FRAME ASSEMBLY with RACKS Trail Boss - Update (4919771977003A)53 parts
- FRONT BRAKE ASSEMBLY Trail Boss - Update (4919771977016A)19 parts
- FRONT WHEEL ASSEMBLY TRAIL BOSS (4919771977015A)20 parts
- FUEL STRAINER Trail Boss - Update (4919771977042A)1 parts
- FUEL TANK ASSEMBLY Trail Boss-Update (4919771977009A)39 parts
- GEARCASE ASSEMBLY TRAIL BOSS (4919771977025A)82 parts
- HEADLIGHT ASSEMBLY TRAIL BOSS (4919771977007A)17 parts
- MAGNETO ASSEMBLY Trail Boss - Update (4919771977038A)19 parts
- OIL PUMP ASSEMBLY Trail Boss - Update (4919771977035A)21 parts
- REAR BRAKE ASSEMBLY Trail Boss - Update (4919771977030A)23 parts
- REAR WHEEL DRIVE ASSEMBLY Trail Boss - Update (4919771977017A)38 parts
- RECOIL STARTER ASSEMBLY Trail Boss - Update (4919771977039A)29 parts
- RH GEARCASE and BRAKE MOUNTING Trail Boss - Update (4919771977029A)11 parts
- SHIFT LINKAGE ASSEMBLY Trail Boss - Update (4919771977031A)19 parts
- STARTING MOTOR ASSEMBLY Trail Boss - Update (4919771977037A)28 parts
- STEERING ASSEMBLY Trail Boss - Update (4919771977011A)55 parts
- STRUT ASSEMBLY TRAIL BOSS (4919771977008A)19 parts
- SWING ARM WELDMENT/REAR SHOCK ASM. Trail Boss - Update (4919771977021A)46 parts
- TOOL KIT ASSEMBLY TRAIL BOSS (4919771977040A)9 parts
- WIRING HARNESS Trail Boss - Update (4919771977027A)39 parts
OEM parts with part numbers
| Assembly | Ref | OEM part number | Description | Qty |
|---|---|---|---|---|
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 1 | 7080413 | CLAMP,BAND,NARROW | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 2 | 5430976 | BOX,AIR SILENCER | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 3 | 5410506 | BOOT, AIR SILENCER | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 4 | 5220980 | RETAINER,COVER | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 5 | 5430884 | COVER,AIR INTAKE | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 6 | 5410510 | SEAL,COVER,AIR | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 7 | 7080140 | CLAMP(10) | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 8 | 7080369 | FILTER, AIR | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 9 | 7512246 | BOLT(10) | 2 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 10 | 7558302 | WASHER,WROUGHT(10) | 2 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 11 | 7670060 | NUT, SPEED(10) | 2 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 12 | 5431124 | BOX, AIR INTAKE | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 13 | 5410549 | VALVE, UMBRELLA | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 14 | 5410529 | BUSHING | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 15 | 7512275 | BOLT-CARRIAGE(10) | 4 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 16 | 7080336 | CLAMP,AIR BOX * | 2 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 17 | 5410462 | BOOT,CARBURETOR | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 18 | 5810310 | TAPE, FOIL | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 19 | 7670061 | NUT, PUSH-ON(10) | 4 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 20 | 7542127 | NUT,WING(10) | 4 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 21 | 5810441 | SEAL, FOAM | 1 |
| AIR BOX ASSEMBLY TRAIL BOSS (4919771977019A) | 22 | 5810444 | FOAM, AIR FILTER (10) | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 1 | 2681512 | SEAT ASM,(ATV) Substituted by 2681724-157 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 2 | 7072786 | DECAL(CPSC),WARN,HVY.LOAD [No Longer Available] | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 3 | 2681513 | COVER,SEAT,(BLUE) Substituted by 2681723-157 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 4 | 1011558 | LATCH,SEAT | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 5 | 7041158 | SPRING, LATCH | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 6 | 5211033 | BRACKET,LEVER RETAINER | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 7 | 7621403 | BLIND RIVET(50) | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 8 | 5410414 | BUMPER, RUBBER | 6 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 10 | 7512232 | BOLT(10) | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 11 | 7558301 | WASHER(10) | 36 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 11 | 7558301 | WASHER(10) | 36 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 11 | 7558301 | WASHER(10) | 36 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 12 | 5430991-152 | CAB,REAR (Fender) | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 13 | 7670060 | NUT, SPEED(10) | 6 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 13 | 7670060 | NUT, SPEED(10) | 6 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 13 | 7670060 | NUT, SPEED(10) | 6 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 14 | 7073085 | DECAL,TRAIL BOSS | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 15 | 7072933 | DECAL(CPSC),AGE WARN. Substituted by 7074827 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 16 | 5431197-157 | COVER,FUELTANK,BON.BLUE | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 17 | 5430973-152 | COVER,H/L.(TAN) | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 18 | 7073147 | DECAL(CPSC),WARNING DISC | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 19 | 7072693 | DECAL,WARNING(CPSC) [No Longer Available] | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 20 | 7621457 | RIVET(50) | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 21 | 5430887 | PLUG, RACK HOLE | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 22 | 5430990-152 | CAB, FRT. Substituted by 2631549-152 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 23 | 7072884 | DECAL, SIDE PANEL [No Longer Available] | 2 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 24 | 7073024 | LABEL, 'U.S.A.' | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 25 | 7072793 | DECAL(CPSC),TIRE PRESS(T.B.) [No Longer Available] | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 26 | 7670052 | CLIP, PUSH-ON(10) | 4 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 27 | 7512282 | BOLT, BLACK(10) | 43 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 28 | 5850082 | MUDFLAP, LH FRONT Substituted by 5850082-070 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 28 | 5850083 | MUDFLAP, RH FRONT Substituted by 5850083-070 | 1 |
| BODY ASSEMBLY Trail Boss - Update (4919771977001A) | 29 | 7542122 | NUT-LOCK(10) | 43 |
Related models
- BIG BOSS 4X6 - W918627 1991
- BIG BOSS 6X6 - W918727 1991
- TRAIL BLAZER - W917221 1991
- TRAIL BOSS 2X4 - W917527 1991
- TRAIL BOSS 350L 2X4 - W917539 1991
Other models of Polaris
- SCRAMBLER - W857027 1985
- TRAIL BOSS - W857527 1985
- SCRAMBLER - W867027 1986
- TRAIL BOSS - W867527 1986
- TRAIL BOSS - W867627 1986
- CYCLONE - W877828 1987
- TRAIL BOSS - W877527 1987
- TRAIL BOSS 4X4 - W878027 1987
- TRAIL BOSS 4X4 - W878127 1987
- TRAIL BOSS 4X4 - W878327 1987
- TRAIL BOSS 250 - X888528 1988
- TRAIL BOSS 250 R/ES - W888528 1988