Model Image
Manufacturer

Husqvarna

Model Number

257

Description

Chainsaw

Interactive Exploded View

Parts List

Part Number Description
503544003 503544003 AIR CONDUCTOR
501879706 501879706 AIR FILTER
501879703 501879703 AIR FILTER
501864201 501864201 AIR FILTER HOLDER
501879704 501879704 AIR FILTER NON-WOVEN
503542602 503542602 AIR JET
503468401 503468401 AIR JET
501867002 501867002 ANTIVIBE ELEMENT
503508602 503508602 ATTACHMENT PLATE
501468501 501468501 BALL
738220225 738220225 BALL BEARING
503684242 503684242 BAR BOLT
501872401 501872401 BEARING COVER
503704401 503704401 BRAKE BAND
503512101 503512101 BRAKE BAND
503704901 503704901 BRAKE SPRING
501860301 501860301 BUFFER
503723101 503723101 BUSHING
501832901 501832901 BUSHING
503281611 503281611 CARB. HDA-144-1 WALBRO
501872301 501872301 CATCH ADJ.SCREW
501686801 501686801 CHAIN CATCHER
503631002 503631002 CHAIN GUIDE PLATE
501870501 501870501 CHAIN GUIDE PLATE
501517201 501517201 CHAIN PAD
503747072 503747072 CHAINBRAKE
503638201 503638201 CHOKE VALVE
501869002 501869002 CHOKECONTROL
503546701 503546701 CHOKESHAFT ASS'Y
537110502 537110502 CLUTCH
503704301 503704301 CLUTCH COVER
503646603 503646603 CLUTCH DRUM COMP-3/8 X 7
503646604 503646604 CLUTCH DRUM CPL 325X7
501874202 501874202 COVER
501492703 501492703 COVER
503176301 503176301 COVER METERING DIAPHR.
501666201 501666201 COVER PUMP SIDE
501860004 501860004 CRANKCASE
506181972 506181972 CRANKSHAFT COMPLETE
503654902 503654902 CYLINDER COVER USA
503660872 503660872 CYLINDER CPL-DEKO
503987401 503987401 DECAL
503662816 503662816 DECAL
503715301 503715301 DECOMPRESSION VALVE
503704501 503704501 DUST GUARD
501875001 501875001 DUST GUARD
735310820 735310820 E-RING
501879501 501879501 FELLING DOG
501795001 501795001 FELLING DOG
503220001 503220001 FLANGE NUT
503529401 503529401 FLYWHEEL
503540103 503540103 FRONT HANDLE
591375401 591375401 FUEL FILTER
581756205 581756205 FUEL HOSE
501666101 501666101 FUEL INLET SCREEN
580457501 580457501 FUEL TANK BUSHING
501873101 501873101 FUEL TANK VENT.
505520125 505520125 FULCRUM PIN
503704801 503704801 GASKET
501862502 501862502 GASKET
503704802 503704802 GASKET
503544401 503544401 GASKET
501862102 501862102 GASKET
501624301 501624301 GASKET
501667001 501667001 GASKET METERING SIDE
501666901 501666901 GASKET PUMP SIDE
503543802 503543802 GROMMET
503727401 503727401 HANDGUARD
503404701 503404701 HANDLE FILLER
720123351 720123351 HARDENED PIN
503669901 503669901 HIGH SPEED NEEDLE
503578901 503578901 HOLDER
503614801 503614801 IDLE SPEED SCREW
587329502 587329502 IGNITION MODULE
503563401 503563401 INLET NEEDLE
501875304 501875304 KNEE-JOINT
501875301 501875301 KNEE-JOINT
503097904 503097904 LEVER
501668301 501668301 LEVER
501877901 501877901 LEVER FAST IDLE
503493401 503493401 LOCK SPRING
501667301 501667301 METERING DIAPHRAGM
503555504 503555504 MUFFLER
503555503 503555503 MUFFLER
503645701 503645701 MUFFLER/CAT
503082001 503082001 NIPPLE
501452702 501452702 NUT
503221011 503221011 NUT M8X1
740482702 740482702 O-RING
740440500 740440500 O-RING
503263017 503263017 O-RING
501765602 501765602 OIL CAP
501876501 501876501 OIL HOSE
503167301 503167301 OIL PUMP
501544102 501544102 OIL SCREEN
503668401 503668401 OIL TANK VENT
501839302 501839302 OIL TANK VENT
503706301 503706301 OUTLET
720131520 720131520 PARALLEL PIN 5X30
501673201 501673201 PAWL
501454101 501454101 PAWL
720123300 720123300 PIN 3X10
720182520 720182520 PIN 3X25
720124220 720124220 PIN 3X30
720130752 720130752 PIN 5 X 14
503662001 503662001 PISTON ASSEMBLY
503289014 503289014 PISTON RING
503802701 503802701 PIVOT PIN
503520801 503520801 PIVOT SLEEVE L
501768101 501768101 PIVOT SLEEVE L
501768001 501768001 PIVOT SLEEVE R
503543701 503543701 PLATE
503526101 503526101 PLUG
501664901 501664901 PLUG
502254701 502254701 PUMP DIAPHRAGM
501872101 501872101 PUMP PLUNGER
501630203 501630203 RECOIL SPRING
501668401 501668401 REPAIR KIT DIAPHRAGM SET
583954801 583954801 RIGHT HAND EXHAUST PIPE
640200214 640200214 RIM SPROCKET
501515401 501515401 RUBBER BUMPER
640200010 640200010 SAW RIM
503669101 503669101 SCREEN
724128759 724128759 SCREW
503212806 503212806 SCREW
725538755 725538755 SCREW
725533755 725533755 SCREW
724332556 724332556 SCREW
724132755 724132755 SCREW
505316717 505316717 SCREW
503584601 503584601 SCREW
503562301 503562301 SCREW
503496903 503496903 SCREW
503215316 503215316 SCREW
503214972 503214972 SCREW
503214925 503214925 SCREW
503212910 503212910 SCREW
503212906 503212906 SCREW
503212810 503212810 SCREW
503212716 503212716 SCREW
503207450 503207450 SCREW
503205508 503205508 SCREW
503203228 503203228 SCREW
503203219 503203219 SCREW
503202616 503202616 SCREW
503202520 503202520 SCREW
503200712 503200712 SCREW
503166601 503166601 SCREW
501819201 501819201 SCREW
501497601 501497601 SCREW
501468701 501468701 SCREW
503211103 503211103 SCREW CSS B8X10
501819901 501819901 SCREW M5 X 14
725529155 725529155 SCREW MC6S 4X12
725532555 725532555 SCREW MC6S 5 X 10
525824902 525824902 SCREW MC6S 5X20
725533255 725533255 SCREW MC6S 5X22
530035015 530035015 SCREW-THROTTLE VALVE
505275719 505275719 SEAL RING
501799401 501799401 SEALING COLLAR
501839801 501839801 SHORTING LEAD
501862401 501862401 SLEEVE
501630601 501630601 SLEEVE
503696901 503696901 SPACER
501867202 501867202 SPACER
501862002 501862002 SPACER
503235111 503235111 SPARK PLUG
501485402 501485402 SPARK PLUG CONN. KIT
721425250 721425250 SPIRAL PIN 4X12
506164801 506164801 SPRING
503084601 503084601 SPRING
503562401 503562401 SPRING
501875401 501875401 SPRING
501874701 501874701 SPRING
501667801 501667801 SPRING
501667701 501667701 SPRING
501665901 501665901 SPRING
501634801 501634801 SPRING
501615801 501615801 SPRING
501468401 501468401 SPRING
501456101 501456101 SPRING
501879001 501879001 SPRING CHOKE
503541601 503541601 STARTER ASS'Y
503543901 503543901 STARTER HANDLE
503541701 503541701 STARTER HOUSING
503178902 503178902 STARTER PULLEY
505305125 505305125 STARTER ROPE
503619809 503619809 STICKER
503717901 503717901 STOP SWITCH
503546102 503546102 SUPPORT
503253401 503253401 SUPPORT BUSHING
501861801 501861801 SUPPORT BUSHING
501761310 501761310 TANK KPL
501877702 501877702 THROTTLE CATCH
501876201 501876201 THROTTLE RETURN SPRING
501876803 501876803 THROTTLE ROD
501878001 501878001 THROTTLE STOP
503669601 503669601 THROTTLE VALVE
503546501 503546501 THROTTLESHAFT ASS'Y
503081801 503081801 WASHER
819070816 819070816 WASHER
503544501 503544501 WASHER
503230042 503230042 WASHER
503085201 503085201 WASHER
503230035 503230035 WASHER 5.3X15
503230004 503230004 WASHER 6.1X9
503782401 503782401 WASHER DOOR BELLOWS
503574201 503574201 WELCH PLUG
503527701 503527701 WINTER KIT/254/257/262
503642901 503642901 WORM WHEEL
503557801 503557801 WORM WHEEL
737431200 737431200 WRIST PIN CLIP
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