Description
Overview:
This Pin Knee Joint is a genuine Husqvarna component for professional and domestic chainsaws, including the 362 and 545. It is a small, precision‐machined steel pin with a corrosion‐resistant finish, designed to secure and pivot the knee joint within the chain brake linkage. By replacing a worn or damaged pin, you help restore smooth movement of the brake mechanism and maintain reliable stopping performance. The close tolerances ensure a firm seat in the mating parts and consistent operation under vibration. Built for long service life, it is suitable for routine maintenance or a full clutch cover/chain brake overhaul. As an authentic Husqvarna part, it matches the original specification for fit and function, supporting safe, efficient running of your saw in tough conditions.
Key Features:
- Genuine Husqvarna part for correct fit and dependable performance
- Hardened steel construction with corrosion‐resistant finish for durability
- Precision‐engineered to maintain alignment in the knee joint linkage
- Helps restore reliable chain brake engagement and release
- Stable under vibration and repeated on/off braking cycles
- Simple like‐for‐like replacement during service or rebuilds
- Compatible with a wide range of mid‐to‐large Husqvarna models
- Cost‐effective fix for play, sticking or inconsistent brake action
Typical Applications:
Used when servicing or rebuilding the chain brake/clutch cover assembly, especially if the original pin shows wear, bending, corrosion or looseness. Suitable for preventative maintenance, post‐impact repairs, or restoring correct brake function on frequently used saws in forestry, tree surgery, construction, landscaping and farm work.
Also known as:
Knee joint pin, chain brake pin, brake linkage pin, pivot pin, hinge pin, knee link pin, connecting pin for chain brake linkage.
Fits Models:
362, 362XP, 365, 365 X-Torq, 365H, 371K, 371XP, 372XP, 372XP X-Torq, 375K, 385, 385XP, 390XP, 540XP Mark III, 545, 545 Mark II, 545 TrioBrake, 545TrioBrake, 545G Mark II, 550XP, 550XP Mark II, 550XP TrioBrake, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG TrioBrake, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 550XPGTrioBrake, 550XPTrioBrake, 555, 556, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, 562XP, 562XP Mark II, 562XPG, 562XPG Mark II, T540 XP Mark III, T540XPMarkIII
Alternate Part Numbers:
503 75 18-01, 503751801
Product Specifications
| L&S Part No. | 503 75 18 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503751801 |
| Unit of Sale | 1 |
| Applications | 362, 362XP, 365, 365 X-Torq, 365H, 371K, 371XP, 372XP, 372XP X-Torq, 375K, 385, 385XP, 390XP, 540XP Mark III, 545, 545 Mark II, 545 TrioBrake, 545G Mark II, 545TrioBrake, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XP TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 550XPG TrioBrake, 550XPGTrioBrake, 550XPTrioBrake, 555, 556, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, 562XP, 562XP Mark II, 562XPG, 562XPG Mark II, T540 XP Mark III, T540XPMarkIII |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 362 | 362XP | 365 | 365H | 365X-TORQ | 371XP | 372XP | 372XP X-TORQ | 385 | 385XP | 390XP | 545 | 545 TRIOBRAKE | 550XP TRIOBRAKE | 550XP, 550XPG | 555 | 556 | 560XP, 560XPG | 562XP, 562XPG | 371K | 550XP Mark II | T540 XP Mark III | 540XP Mark III | 545 Mark II | 545G Mark II | 550XPG Mark II | 550XPG Mark II Triobrake | 550XPG Triobrake | 550XP Mark II Triobrake | 560XPG Mark II | 560XP Mark II | 562XPG Mark II | 562XP Mark II | 375K |
