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Exploded diagrams & genuine Husqvarna parts
Common replacements
Spark plug
SPARK PLUG CAP
578111601
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
580700001
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CARBURETTOR · Walbro AT-14 | 586341402 | 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 · Walbro K2-AT. Repair kit, AT-11 Carburetor | 580699901 | 1 | Buy |
| 19 | SCREEN | 501666101 | 1 | Buy |
| 20 | GASKET KIT · Walbro D2-AT. Set of gaskets, AT-11 Carburetor | 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 · Download from your local support site | 900000002 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CLUTCH ASSY | 586864001 | 1 | Buy |
| 2 | CLUTCH SPRING | 574718801 | 2 | Buy |
| 3 | CLUTCH DRUM · 3/8" - 6T | 577389701 | 1 | Buy |
| 3 | CLUTCH DRUM · 0.325" - 7T | 577389702 | 1 | Not stocked |
| 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 | CYLINDER COVER ASSY | 516034603 | 1 | Buy |
| 2 | SUPPORT | 576884601 | 1 | Buy |
| 3 | SEAL | 575550201 | 1 | Buy |
| 4 | WASHER | 735583000 | 1 | Buy |
| 5 | BELLOWS | 515997301 | 1 | 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 |
| 12 | DEFLECTION LIMITER | 592616502 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | CYLINDER | 586341502 | 1 | Buy |
| 2 | PISTON ASSY | 586446204 | 1 | Not stocked |
| 3 | SNAP RING | 737441000 | 2 | Buy |
| 4 | PISTON RING · - up to s/n 20201400191. | 577960501 | 1 | Buy |
| 4 | PISTON RING · From s/n 20201400192 - | 593644901 | 1 | Not stocked |
| 5 | NEEDLE BEARING | 503255501 | 1 | Buy |
| 6 | GASKET | 505457001 | 1 | Buy |
| 7 | GASKET | 505408301 | 1 | Buy |
| 8 | SCREW ITXSCM | 577401202 | 4 | Buy |
| 9 | SUPPORT | 576355902 | 1 | Not stocked |
| 10 | SPARK PLUG | 574519601 | 1 | Not stocked |
| 11 | GASKET KIT · A=Set of gaskets | 576666101 | 1 | Buy |
| 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 | 505543103 | 1 | Buy |
| 5 | PIN | 588850301 | 1 | Buy |
| 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 | 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 | CRANKCASE ASSY | 574618002 | 1 | Not stocked |
| 2 | RADIAL SEAL | 588139701 | 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 | 577878603 | 1 | Buy |
| 11 | HOLDER | 503578901 | 1 | Buy |
| 12 | GASKET | 589241301 | 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 |
| 23 | SPRING PIN | 501623301 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | FILTER COVER ASSY | 576353601 | 1 | Buy |
| 3 | SPRING | 575487601 | 1 | Not stocked |
| 4 | WASHER | 576049801 | 1 | Not stocked |
| 5 | E-CLIP | 735310820 | 1 | Buy |
| 6 | AIR FILTER ASSY · Non-Woven - Clear | 586092401 | 1 | Not stocked |
| 6 | AIR FILTER ASSY · Nylon Mesh - 80 Micron Rating - Black | 574453104 | 1 | Buy |
| 6 | AIR FILTER ASSY · Nylon Mesh - 52 Micron Rating - Clear | 574453103 | 1 | Buy |
| 7 | FILTER HOLDER ASSY | 506948402 | 1 | Not stocked |
| 8 | SEALING | 525619201 | 1 | Buy |
| 9 | CARBURETTOR · Walbro AT-14 | 586341402 | 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 |
| 27 | PLUG | 537051801 | 1 | Buy |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | IGNITION MODULE | 587306804 | 1 | Not stocked |
| 2 | SPARK PLUG CAP | 578111601 | 1 | Buy |
| 3 | CONTACT SPRING | 501485601 | 1 | Not stocked |
| 4 | SCREW ITXSCFM | 525755203 | 2 | Buy |
| 5 | FLYWHEEL ASSY | 510169802 | 1 | Not stocked |
| 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 | 587892101 | 1 | Not stocked |
| 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 | 522590205 | 1 | Not stocked |
| 7 | TANK VENT ASSY | 501152902 | 1 | Not stocked |
| 9 | FUEL HOSE | 523055202 | 1 | Not stocked |
| 10 | TANK VENT ASSY | 590042601 | 1 | Not stocked |
| 11 | LOOP | 580860002 | 1 | Not stocked |
| 12 | LOOP | 576381301 | 1 | Buy |
| 13 | SCREW ITXSCFM | 522847901 | 1 | Buy |
| 14 | ANTIVIBRATION ELEMENT | 588692201 | 1 | Buy |
| 15 | ANTIVIBRATION ELEMENT | 510058401 | 1 | Buy |
| 16 | SCREW CITXPANT | 526222002 | 4 | Buy |
| 17 | TANK CAP ASSY | 577878603 | 1 | Buy |
| 18 | HOLDER | 503578901 | 1 | Buy |
| 19 | GASKET | 589241301 | 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 |
| 28 | FUEL FILTER ASSY | 589860701 | 1 | Not stocked |
| Ref | Description | OEM Part # | Qty | Bailey's |
|---|---|---|---|---|
| 1 | STARTER ASSY | 506902104 | 1 | Buy |
| 2 | STARTER COVER | 506902201 | 1 | Buy |
| 3 | SPRING CASSETTE ASSY | 506910001 | 1 | Buy |
| 4 | SCREW CITXPANT | 525887401 | 2 | Buy |
| 5 | STARTER PULLEY | 506902302 | 1 | Not stocked |
| 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 |
Other Husqvarna models in the same class as the T540 XP II — exploded diagrams with OEM part numbers.
