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Exploded diagrams & genuine Husqvarna parts
Common replacements
Spark plug
SPARK PLUG
531008615
Air filter
AIR FILTER ASSY
574453104
Fuel filter
FUEL FILTER
503443203
Starter rope
STARTER ROPE
505305103
Chain catcher
CHAIN CATCHER
505288501
Sprocket / drum
CLUTCH DRUM
577389701
Gasket kit
GASKET KIT
576666101
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CRANKCASE ASSY | 574618001 | 1 | Buy |
| 2 | RADIAL SEAL | 505394001 | 2 | Buy |
| 3 | ROLLER BEARING | 505394701 | 2 | Buy |
| 5 | BAR BOLT | 505217301 | 1 | Buy |
| 6 | PARALLEL PIN | 720130710 | 2 | Buy |
| 7 | SCREW ITXSCT | 525764601 | 1 | Buy |
| 8 | SCREW ITXSCM | 525824901 | 6 | Buy |
| 9 | SCREW ITXSCM | 505574116 | 1 | Buy |
| 10 | TANK CAP ASSY | 577878601 | 1 | Not stocked |
| 11 | HOLDER | 503578901 | 1 | Buy |
| 12 | SEALING | 505411001 | 1 | Buy |
| 13 | CHAIN CATCHER | 505288501 | 1 | Buy |
| 14 | WASHER | 580250401 | 1 | Buy |
| 15 | SCREW ITXSCFM | 525755101 | 1 | Buy |
| 16 | CHAIN GUIDE PLATE | 505521401 | 1 | Buy |
| 17 | COVER ASSY | 516034501 | 1 | Buy |
| 18 | SCREW CITXPANT | 526222001 | 2 | Buy |
| 19 | GASKET KIT · A=Set of gaskets | 576666101 | 1 | Buy |
| 20 | SCREW ITXSCM | 505574116 | 1 | Buy |
| 21 | CATCH | 505201201 | 1 | Buy |
| 22 | POSITION SPRING | 503436501 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CLUTCH ASSY | 586864001 | 1 | Buy |
| 2 | CLUTCH SPRING | 574718801 | 2 | Buy |
| 3 | CLUTCH DRUM | 577389701 | 1 | Buy |
| 4 | NEEDLE BEARING | 503254601 | 1 | Buy |
| 5 | WORM WHEEL | 504786001 | 1 | Buy |
| 6 | SCREW ITXSCT | 525764601 | 1 | Buy |
| 7 | OIL HOSE | 504736001 | 1 | Buy |
| 8 | OIL PLUMMET | 503967501 | 1 | Buy |
| 9 | OIL PUMP ASSY | 544180103 | 1 | Buy |
| 10 | PUMP PISTON | 537069102 | 1 | Buy |
| 11 | WASHER | 503230060 | 2 | Buy |
| 12 | SPRING | 503891601 | 1 | Buy |
| 13 | GROOVED PIN | 721116430 | 1 | Buy |
| 14 | SPRING | 503891501 | 1 | Buy |
| 15 | ADJUSTER | 537027101 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | FILTER COVER ASSY | 576353601 | 1 | Buy |
| 5 | E-CLIP | 735310820 | 1 | Buy |
| 6 | AIR FILTER ASSY · 80my | 574453104 | 1 | Buy |
| 6 | AIR FILTER ASSY · 52my | 574453103 | 1 | Buy |
| 7 | FILTER HOLDER ASSY | 506948402 | 1 | Not stocked |
| 8 | SEALING | 525619201 | 1 | Buy |
| 9 | CARBURETTOR · Walbro AT-2 | 579193001 | 1 | Buy |
| 10 | DUMMY PART · Download from your local support site | 900000002 | 0 | Not stocked |
| 11 | THROTTLE ASSY | 574437601 | 1 | Buy |
| 12 | SCREW ITXSCT | 525824801 | 3 | Buy |
| 13 | SCREW ITXSCM | 574353502 | 2 | Buy |
| 14 | FUEL HOSE | 523056801 | 1 | Buy |
| 15 | SUCTION HOSE | 516003301 | 1 | Buy |
| 16 | CHOKE CONTROL ASSY | 574366401 | 1 | Buy |
| 17 | PURGE | 503936601 | 1 | Buy |
| 18 | INLET PIPE ASSY | 525396802 | 1 | Buy |
| 20 | HOSE | 577406401 | 1 | Not stocked |
| 21 | CARBURETTOR BRACKET | 522890301 | 1 | Buy |
| 22 | NUT SQUARE | 574620401 | 2 | Buy |
| 23 | SCREW CITXPANT | 526222001 | 1 | Buy |
| 24 | SCREW ITXSCM | 577401202 | 4 | Buy |
| 26 | FOAMING FILTER | 574444502 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CYLINDER COVER ASSY | 516034602 | 1 | Not stocked |
| 2 | SUPPORT | 576884601 | 1 | Buy |
| 3 | SEAL | 575550201 | 1 | Buy |
| 4 | WASHER | 735583000 | 1 | Buy |
| 5 | BELLOWS | 515997301 | 1 | Buy |
| 6 | THREAD INSERT | 578120301 | 2 | Buy |
| 7 | PLATE | 579173101 | 1 | Buy |
| 8 | STRAP | 579733101 | 1 | Buy |
| 9 | SCREW CITXPANT | 526222001 | 1 | Buy |
| 10 | WEDGE | 584952901 | 1 | Buy |
| 11 | HEAT DEFLECTOR | 586691601 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | HAND GUARD ASSY | 577829701 | 1 | Buy |
| 2 | SCREW | 526834501 | 1 | Buy |
| 3 | BUSHING | 537202801 | 1 | Buy |
| 4 | CLUTCH COVER ASSY | 505543102 | 1 | Not stocked |
| 5 | NUT | 501454102 | 1 | Not stocked |
| 6 | WORM SCREW | 537397001 | 1 | Buy |
| 7 | O-RING | 740480702 | 1 | Buy |
| 8 | WASHER | 503230063 | 1 | Buy |
| 9 | WORM WHEEL | 537079402 | 1 | Buy |
| 10 | COVER | 505214501 | 1 | Buy |
| 11 | SCREW CITXPANT | 526222001 | 7 | Buy |
| 12 | KNEE JOINT ASSY | 505199301 | 1 | Buy |
| 13 | BRAKE SPRING | 529279301 | 1 | Buy |
| 14 | BRAKE BAND ASSY | 505566701 | 1 | Buy |
| 15 | COVER | 505543302 | 1 | Not stocked |
| 16 | NUT | 505197301 | 1 | Buy |
| 17 | DECAL | 515996701 | 1 | Not stocked |
| 18 | LABEL | 586249001 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CYLINDER | 586341502 | 1 | Buy |
| 2 | PISTON ASSY | 586446202 | 1 | Not stocked |
| 3 | SNAP RING | 737441000 | 2 | Buy |
| 4 | PISTON RING | 577960501 | 1 | Buy |
| 5 | NEEDLE BEARING | 503255501 | 1 | Buy |
| 6 | GASKET | 505457001 | 1 | Buy |
| 7 | GASKET | 505408301 | 1 | Buy |
| 8 | SCREW ITXSCM | 577401202 | 4 | Buy |
| 9 | SUPPORT · s/n up to -20141899999 | 576355901 | 1 | Not stocked |
| 9 | SUPPORT · s/n from 20141900001- | 576355902 | 1 | Not stocked |
| 10 | SPARK PLUG | 531008615 | 1 | Buy |
| 11 | GASKET KIT · A=Set of gaskets | 576666101 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | LID · Medium | 506499801 | 1 | Buy |
| 1 | LID · Large | 506499901 | 1 | Buy |
| 1 | LID · X-Large | 506519801 | 1 | Not stocked |
| 2 | THROTTLE CONTROL | 506495601 | 1 | Buy |
| 3 | THROTTLE LOCKOUT | 506495701 | 1 | Buy |
| 4 | CABLE COVER | 522620902 | 1 | Not stocked |
| 5 | STOP SWITCH | 522798201 | 1 | Not stocked |
| 6 | FUEL TANK | 588454301 | 1 | Buy |
| 7 | TANK VENT ASSY | 537359501 | 1 | Not stocked |
| 8 | CONNECTION BEND | 503454601 | 1 | Buy |
| 9 | FUEL HOSE | 523055202 | 1 | Not stocked |
| 10 | FUEL HOSE | 544324939 | 1 | Buy |
| 11 | LOOP | 580860002 | 1 | Not stocked |
| 12 | LOOP | 576381301 | 1 | Buy |
| 13 | SCREW ITXSCFM | 522847901 | 1 | Buy |
| 14 | ANTIVIBRATION ELEMENT | 510071101 | 1 | Not stocked |
| 15 | ANTIVIBRATION ELEMENT | 510058401 | 1 | Buy |
| 16 | SCREW CITXPANT | 526222002 | 4 | Buy |
| 17 | TANK CAP ASSY | 577878601 | 1 | Not stocked |
| 18 | HOLDER | 503578901 | 1 | Buy |
| 19 | SEALING | 505411001 | 1 | Buy |
| 20 | HANDLE INSERT | 506499701 | 1 | Buy |
| 21 | SCREW ITXSCFM | 525755105 | 1 | Not stocked |
| 22 | SPRING | 506498901 | 1 | Buy |
| 23 | STRAP | 576949601 | 1 | Buy |
| 24 | SCREW CITXPANT | 525887402 | 1 | Buy |
| 25 | FUEL FILTER · FUEL FILTER KOAXIAL 18-40 µm blue | 503443203 | 1 | Buy |
| 25 | FUEL FILTER · FUEL FILTER KOAXIAL 18-40 µm blue SPARE PART 100pcs of 503443203 | 503443205 | 1 | Not stocked |
| 26 | THROTTLE CABLE ASSY | 506495801 | 1 | Buy |
| 27 | SCREW ITXSCFM | 522751901 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | IGNITION MODULE | 585081001 | 1 | Buy |
| 2 | SPARK PLUG CAP | 578111601 | 1 | Buy |
| 3 | CONTACT SPRING | 501485601 | 1 | Not stocked |
| 4 | SCREW ITXSCFM | 525755203 | 2 | Buy |
| 5 | FLYWHEEL ASSY | 510169801 | 1 | Buy |
| 6 | SPRING | 529271101 | 2 | Buy |
| 7 | STARTER PAWL | 537245601 | 2 | Buy |
| 8 | WASHER | 503230042 | 2 | Buy |
| 9 | SCREW | 506006902 | 2 | Buy |
| 10 | NUT | 503220401 | 1 | Buy |
| 11 | WIRING ASSY | 577070601 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | STARTER ASSY | 506902102 | 1 | Not stocked |
| 2 | STARTER COVER | 506902201 | 1 | Buy |
| 3 | SPRING CASSETTE ASSY | 506910001 | 1 | Buy |
| 4 | SCREW CITXPANT | 525887401 | 2 | Buy |
| 5 | STARTER PULLEY | 506902301 | 1 | Buy |
| 6 | STARTER ROPE | 505305103 | 1 | Buy |
| 7 | SCREW CITXSCT | 525764701 | 1 | Buy |
| 8 | STARTER HANDLE ASSY | 584156201 | 1 | Buy |
| 9 | SLEEVE | 537283201 | 1 | Buy |
| 10 | SCREW CITXPANMO | 525824501 | 4 | Buy |
| 11 | DECAL | 506941901 | 1 | Not stocked |
| 12 | AIR CONDUCTOR | 506607702 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | TOOL | 503558510 | 1 | Buy |
| 2 | GREASE | 503621201 | 1 | Not stocked |
| 3 | GREASE | 501911401 | 1 | Not stocked |
| 4 | COMBINATION WRENCH | 522521102 | 1 | Buy |
| 5 | WRENCH | 575880701 | 1 | Buy |
| 6 | DIAGNOSTIC TOOL KIT | 583897101 | 1 | Not stocked |
| 7 | CABLE ASSY | 576183401 | 1 | Not stocked |
| 8 | WINTER KIT | 579384801 | 1 | Buy |
| 9 | SCREW CCRPANT | 503217016 | 2 | Buy |
| 10 | SPIKE | 515997201 | 1 | Buy |
| 11 | CABLE ASSY | 576952201 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CARBURETTOR · Walbro AT-2 | 579193001 | 1 | Buy |
| 2 | KIT | 577954901 | 1 | Buy |
| 3 | SPRING | 574359401 | 1 | Not stocked |
| 4 | THROTTLE LEVER ASSY | 577753401 | 1 | Not stocked |
| 5 | THROTTLE LEVER ASSY | 577219201 | 1 | Buy |
| 6 | SCREW | 544111501 | 1 | Buy |
| 7 | COVER | 574358101 | 1 | Not stocked |
| 8 | PUMP COVER | 576666801 | 1 | Not stocked |
| 9 | SCREW | 537003101 | 4 | Not stocked |
| 10 | SCREW | 502847101 | 1 | Buy |
| 11 | SCREW | 574359001 | 1 | Buy |
| 13 | KIT | 577955001 | 1 | Buy |
| 14 | SPRING | 574359301 | 1 | Buy |
| 17 | BRACKET | 577170101 | 1 | Buy |
| 18 | REPAIR KIT | 580699901 | 1 | Buy |
| 19 | SCREEN | 501666101 | 1 | Buy |
| 20 | GASKET KIT | 580700001 | 1 | Buy |
| 21 | THROTTLE ASSY | 574437601 | 1 | Buy |
| 22 | LINK | 574521101 | 1 | Buy |
| 23 | SPRING | 576670201 | 1 | Not stocked |
| 24 | SCREW | 544111501 | 1 | Buy |
| 25 | DUMMY PART | 900000002 | 1 | Not stocked |
Other Husqvarna models in the same class as the T540 XP — exploded diagrams with OEM part numbers.
