Description
Overview:
This Flywheel Ratchet Spring is a genuine Husqvarna part for the starter/flywheel ratchet mechanism on a wide range of Husqvarna cut-off saws and chainsaws, including the K750 and K950. Made from durable metal, it provides the return force that lets the flywheel ratchet engage and disengage correctly, helping the machine start reliably and run as intended. Use it as a direct replacement when the original spring is worn, fatigued, or broken. Correct spring tension is essential for dependable starting, so replacing a tired spring can restore smooth engagement and prevent further wear to ratchet components. Suitable for routine servicing or repairs in the workshop or on-site, this OEM spring maintains the reliability and lifespan of your Husqvarna equipment.
Key Features:
- Genuine Husqvarna part for assured fit and performance
- Built to OEM specification for consistent tension and durability
- Robust metal construction resists fatigue and deformation
- Maintains smooth engagement of the flywheel ratchet for reliable starting
- Direct replacement - no modification required on listed models
- Helps prevent secondary wear to pawls and flywheel components
- Suitable for proactive maintenance or urgent repair
- Backed by Husqvarna's quality standards
Typical Applications:
Replacement of a worn, broken, or weak ratchet return spring in Husqvarna cut-off saws and chainsaws. Ideal when machines fail to engage the starter properly, intermittently slip on pull-start, or show inconsistent ratchet action. Useful for scheduled servicing, rebuilds, and field repairs to keep equipment ready for demolition cutting, rescue work, rail cutting, landscaping, and forestry tasks.
Also known as:
Starter pawl spring, pawl return spring, recoil starter ratchet spring, flywheel pawl return spring, starter mechanism spring.
Fits Models:
242, 246, 254, 257, 261, 262XP, 266, 268, 268K, 272K, 272XP, 281, 281XP, 288, 288XP, 3120K, 3122K, 371K, 375K, 42, 545, 550XP, 550XPG, 555, 556, 560XP, 560XPG, 562XP, 562XPG, 570, 570II, 576XP, 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, K1270RAIL, 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, 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
Alternate Part Numbers:
501634801
Product Specifications
| L&S Part No. | 501 63 48 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 501634801 |
| Unit of Sale | 1 |
| Applications | 242, 246, 254, 257, 261, 262XP, 266, 268, 268K, 272K, 272XP, 281, 281XP, 288, 288XP, 3120K, 3122K, 371K, 375K, 42, 545, 550XP, 550XPG, 555, 556, 560XP, 560XPG, 562XP, 562XPG, 570, 570II, 576XP, 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, K1270RAIL, 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, 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 |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K750 | K950 | K1250 | K760 | K1260 | K1270, K1270 | K970 | 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 | 242 | 246 | 254 | 257 | 261 | 262XP | 266 | 268 | 281 | 281XP | 288 | 288XP | 42 | 545 | 550XP, 550XPG | 555 | 556 | 560XP, 560XPG | 562XP, 562XPG | 570 | 570II | 576XP | 61 | 66 | 268K | 272K | 3120K | 371K | 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 | K970 Rescue III | K970 Ring III | K970 SmartGuard | 375K | K970 III |
