OEM Husqvarna 372 XP X-TORQ, 576 XP, 576 XP AUTO TUNE Brake Spring
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Genuine Husqvarna Brake Spring
Part #: 503 70 99-02
Fits 372 XP X-TORQ, 576 XP, 576 XP AUTO TUNE, 570 II (Valid only for 967 10 83 -XX), 372 XP, 390XP, 362, 365SP
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Genuine Husqvarna Chain Brake Spring – 503 70 99-02
The Genuine Husqvarna 503709902 Chain Brake Spring is a safety-critical component responsible for the instant engagement of the chain brake band.
High-Tensile Safety Performance
Professional saws generate significant chain inertia. This OEM spring is engineered to deliver precise tension cycles without losing its “memory.” Cheaper aftermarket springs can stretch or snap, potentially delaying the brake engagement during a kickback event.
Model Compatibility:
| Husqvarna | 61, 268, 272 XP 281, 288 XP 362, 365, 365 X-TORQ 371, 372 XP, 372 XP X-TORQ 385 XP, 390 XP 570 II, 575 XP, 576 XP, 576 XP AutoTune |
| Jonsered | CS2163, CS2165, CS2166, CS2171, CS2172, CS2186, CS2188 |
📄 Technical Resources (PDF):
- Husqvarna 362: Workshop Manual | Parts Diagram
- Husqvarna 365: Workshop Manual | Parts Diagram
- Husqvarna 365 X-TORQ: Workshop Manual | Parts Diagram
- Husqvarna 371 XP: Workshop Manual | Parts Diagram
- Husqvarna 372 XP: Workshop Manual | Parts Diagram
- Husqvarna 372 XP X-TORQ: Workshop Manual | Parts Diagram
- Husqvarna 272 XP: Workshop Manual | Parts Diagram
- Husqvarna 288 XP: Workshop Manual | Parts Diagram
- Husqvarna 385 XP: Workshop Manual | Parts Diagram
- Husqvarna 390 XP: Workshop Manual | Parts Diagram
- Husqvarna 575 XP: Workshop Manual | Parts Diagram
- Husqvarna 576 XP / EPA: Workshop Manual | Parts Diagram
- Husqvarna 576 XP AutoTune: Workshop Manual | Parts Diagram
ðŸ› ï¸ Mechanic’s Tip:
Warning: Brake springs are under massive tension. Always wear eye protection during installation. Use a specialized spring pulling tool or a sturdy pair of needle-nose pliers to avoid the spring “launching” during assembly.
Warning: Brake springs are under massive tension. Always wear eye protection during installation. Use a specialized spring pulling tool or a sturdy pair of needle-nose pliers to avoid the spring “launching” during assembly.
| Weight | 0.05625 lbs |
|---|





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