Description
Overview:
This Flywheel Ratchet Washer is a genuine Husqvarna part designed to secure and space the flywheel ratchet assembly for reliable starting and smooth engine operation. Made from durable steel with a dark protective finish, it resists wear in demanding environments. It maintains the correct interface between the flywheel and the ratchet mechanism, helping prevent slippage and premature wear. Suitable for a wide range of Husqvarna chainsaws, brushcutters, hedge trimmers and power cutters, including the K750 and K760, it fits precisely to OEM tolerances for consistent performance. As a genuine component (Husqvarna part number 503 23 00‐42 / 503230042), it is built for long service life and dependable fitment during routine maintenance or repairs.
Key Features:
- Genuine Husqvarna OEM washer for assured compatibility and quality (PN 503 23 00‐42 / 503230042)
- Steel construction with a robust dark finish for wear resistance and longevity
- Accurate fit maintains correct flywheel/ratchet spacing to support reliable starting
- Helps prevent ratchet slippage and reduces wear on adjoining parts
- Stable under vibration and heat typical of forestry and construction use
- Simple to install during standard flywheel or starter service routines
- Broad model coverage across popular saws, brushcutters, hedge trimmers and power cutters
- Suitable for professional, hire fleet and serious DIY maintenance schedules
Typical Applications:
Used when servicing or rebuilding the flywheel and starter drive on Husqvarna machines. Ideal when addressing hard‐starting, damaged or missing washers, or excessive play in the ratchet assembly. Common during clutch, flywheel or starter pawl maintenance on chainsaws and during scheduled servicing of cut‐off saws used in construction and landscaping.
Also known as:
Flywheel washer, starter ratchet washer, flywheel spacer washer, starter clutch washer, pawl washer, drive washer, ratchet spacer.
Fits Models:
135, 135E, 140E, 240, 240F, 240R, 242, 245, 245R, 245RX, 246, 254, 257, 261, 262XP, 265RX, 266, 268, 268K, 272K, 281, 281XP, 288, 288XP, 3120, 3120K, 3120XP, 3122K, 323HE3, 323P, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325P, 326 HDA55 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326P, 327HE4 X-Series, 327P, 327P4, 327P5x, 343F, 343FR, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355FX, 355FXT, 355RX, 356BF, 356BT, 357XP, 359, 362, 362XP, 365, 365 X-Torq, 365H, 371K, 371XP, 372XP, 372XP X-Torq, 375K, 385, 385XP, 390XP, 394XP, 395XP, 40, 42, 435, 435E, 435EII, 435II, 440E, 440EII, 440II, 445, 445E, 445EII, 445II, 45, 450, 450EII, 49, 51, 536LiHD60X, 545, 545F, 545FR, 545FX, 545FXAT, 545FXT, 545FXTAT, 545RX, 545RXT, 545RXTAT, 55, 550XP, 550XPG, 555, 555FRM, 555FX, 555FXT, 555RXT, 556, 560XP, 560XPG, 562XP, 562XPG, 570, 570II, 576XP, 576XP AutoTune, 576XPAutoTune, 61, 66, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1260, K1260 Rail, K1260Rail, K1270, K1270 I, K1270 II, K1270 Rail I, K1270 Rail II, K1270I, K1270II, K1270RailI, K1270RailII, K650 Cut-n-Break, K650Cut-n-Break, K750, K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K760Cut-n-Break, K760Cut-n-BreakII, K760II, K760Rescue, K770, K770 Dry Cut, K770 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC, K950, K950 Chain, K950 Rescue, K950 Ring, K950Chain, K960, K960 Chain, K960 Rescue, K960 Ring, K960Chain, K960Rescue, K960Ring, K970, K970 Chain, K970 Chain III, K970 III, K970 Rescue III, K970 Ring, K970 Ring III, K970Chain, K970ChainIII, K970III, K970RescueIII, K970Ring, K970RingIII, Saw Attachment, T540XP, T540XPII
Alternate Part Numbers:
503230042
Product Specifications
| L&S Part No. | 503 23 00 42 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503230042 |
| Unit of Sale | 1 |
| Applications | 135, 135E, 140E, 240, 240F, 240R, 242, 245, 245R, 245RX, 246, 254, 257, 261, 262XP, 265RX, 266, 268, 268K, 272K, 281, 281XP, 288, 288XP, 3120, 3120K, 3120XP, 3122K, 323HE3, 323P, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325P, 326 HDA55 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326P, 327HE4 X-Series, 327P, 327P4, 327P5x, 343F, 343FR, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355FX, 355FXT, 355RX, 356BF, 356BT, 357XP, 359, 362, 362XP, 365, 365 X-Torq, 365H, 371K, 371XP, 372XP, 372XP X-Torq, 375K, 385, 385XP, 390XP, 394XP, 395XP, 40, 42, 435, 435E, 435EII, 435II, 440E, 440EII, 440II, 445, 445E, 445EII, 445II, 45, 450, 450EII, 49, 51, 536LiHD60X, 545, 545F, 545FR, 545FX, 545FXAT, 545FXT, 545FXTAT, 545RX, 545RXT, 545RXTAT, 55, 550XP, 550XPG, 555, 555FRM, 555FX, 555FXT, 555RXT, 556, 560XP, 560XPG, 562XP, 562XPG, 570, 570II, 576XP, 576XP AutoTune, 576XPAutoTune, 61, 66, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1260, K1260 Rail, K1260Rail, K1270, K1270 I, K1270 II, K1270 Rail I, K1270 Rail II, K1270I, K1270II, K1270RailI, K1270RailII, K650 Cut-n-Break, K650Cut-n-Break, K750, K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K760Cut-n-Break, K760Cut-n-BreakII, K760II, K760Rescue, K770, K770 Dry Cut, K770 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC, K950, K950 Chain, K950 Rescue, K950 Ring, K950Chain, K960, K960 Chain, K960 Rescue, K960 Ring, K960Chain, K960Rescue, K960Ring, K970, K970 Chain, K970 Chain III, K970 III, K970 Rescue III, K970 Ring, K970 Ring III, K970Chain, K970ChainIII, K970III, K970RescueIII, K970Ring, K970RingIII, Saw Attachment, T540XP, T540XPII |
| Machine Type | Chainsaws, Disc Cutters, Hedgetrimmers, Brushcutters |
| Fits Brands | Husqvarna |
| Fits Models | K750 | K950 | K1250 | K760 | 135 | K770 | K1260 | K1270, K1270 | K970 | 323HE3 | 325HDA55 X-SERIES | 325HDA65 X-SERIES | 325HE3 X-SERIES | 325HE4 X-SERIES | 326 HDA55 X-SERIES | 326HE3 X-SERIES | 326HE4 X-SERIES | 327HE4 X-SERIES | 536LiHD60X | 3122K | K1250 Active | K1250 Rail | K1260 Rail | K650 Cut-n-Break | K760 Cut-n-Break | K760 RESCUE | K950 Rescue | K950 Ring | K960 | K960 Rescue | K960 Ring | K970 Ring | 135E | 323P | 140E | 325P | 326P | 327P | 242 | 246 | Saw Attachment | 254 | 257 | 261 | 262XP | 266 | 268 | 281 | 281XP | 288 | 288XP | 3120 | 3120XP | 357XP | 359 | 362 | 362XP | 365 | 365H | 365X-TORQ | 371XP | 372XP | 372XP X-TORQ | 385 | 385XP | 390XP | 394XP | 395XP | 40 | 42 | 435 | 435E | 435EII | 435II | 440E | 440EII | 440II | 445 | 445E | 445EII | 445II | 45 | 450 | 450EII | 49 | 51 | 545 | 55 | 550XP, 550XPG | 555 | 556 | 560XP, 560XPG | 562XP, 562XPG | 570 | 570II | 576XP | 61 | 66 | T540XP | T540XPII | 268K | 272K | 3120K | 371K | 240 | 240F | 240R | 245 | 245R | 245RX | 265RX | 343F | 343FR | 343R | 345FR | 345FX | 345FXT | 345R | 345RX | 355FRM | 355FX | 355FXT | 355RX | 356BF | 356BT | 545FR | 545FX | 545FXAT | 545RX | 545RXT | 545RXTAT | 555FRM | 555FX | 555FXT | 555RXT | 545FXT | 545FXTAT | 576XP AutoTune | K950 Chain | K960 Chain | K970 Chain | K970 Chain III | K970 Chain III (2 Bolt) | K1270 I | K1270 II | K1270 II Smartguard | K1270 Rail I | K1270 Rail II | K760 Cut-n-Break II | K760 II | K770 Dry Cut | K770 OilGuard | K770 Rescue | K770 SmartGuard | K770 VAC | K970 Rescue III | K970 Ring III | K970 SmartGuard | 375K | K970 III | 327P4 | 327P5x | 545F |
