Description
Overview:
This retaining ring is a Genuine Husqvarna OEM part designed to secure components on Husqvarna professional chainsaws, including the 565 and 570II. Manufactured from durable, hardened spring steel, it sits in a machined groove to prevent axial movement, helping keep rotating parts correctly positioned during operation. By maintaining component alignment under vibration and load, it supports smooth running and reduces wear. Suitable for demanding forestry, construction, and grounds maintenance work, this compact metal ring is a dependable service item for routine maintenance and rebuilds. The part is identified as 503 27 21-01 and is engineered for a precise fit on a wide range of Husqvarna saws, ensuring compatibility and long service life when installed and used as intended.
Key Features:
- Genuine Husqvarna part for assured compatibility and reliability across listed models
- Hardened spring steel construction for strength, resilience, and long-term performance
- Precision fit in shaft or housing grooves to resist axial loads and vibration
- Protective finish helps guard against corrosion and everyday workshop handling
- Supports smooth operation by maintaining correct spacing of moving assemblies
- Straightforward installation with standard circlip pliers; aids quick servicing
- Stable retention reduces premature wear of bearings, sprockets, and shafts
- Suitable for heavy-duty use in forestry, arborist, and site conditions
Typical Applications:
Used to retain components that run on or against a shaft or within a bore, such as spacers, washers, sprocket assemblies, and bearing positions inside the chainsaw powerhead. Commonly fitted during clutch, drive, or general overhaul work where secure axial location is required for reliable, smooth cutting performance.
Also known as:
Circlip, snap ring, locking ring, retaining clip, C-clip. These names refer to the same type of spring-steel fastener that fits into a groove to hold components in place against axial movement in high-vibration machinery.
Fits Models:
362, 362XP, 365, 365 X-Torq, 365H, 371XP, 372XP, 372XP X-Torq, 385, 385XP, 390XP, 565, 570, 570II, 572XP, 572XPG, 575XP, 576XP, 576XP AutoTune, 576XPAutoTune, 592 XP, 592XP, K970 Chain III, K970ChainIII
Alternate Part Numbers:
503 27 21-01, 503272101
Product Specifications
| L&S Part No. | 503 27 21 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503272101 |
| Unit of Sale | 1 |
| Applications | 362, 362XP, 365, 365 X-Torq, 365H, 371XP, 372XP, 372XP X-Torq, 385, 385XP, 390XP, 565, 570, 570II, 572XP, 572XPG, 575XP, 576XP, 576XP AutoTune, 576XPAutoTune, 592 XP, 592XP, K970 Chain III, K970ChainIII |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 362 | 362XP | 365 | 365H | 365X-TORQ | 371XP | 372XP | 372XP X-TORQ | 385 | 385XP | 390XP | 565 | 570 | 570II | 572XP, 572XPG | 576XP | 592 XP | 576XP AutoTune | K970 Chain III (2 Bolt) |
