Description
Overview:
The Support Cup is a genuine Husqvarna component designed for heavy‐duty brushcutters, providing rigid support beneath the cutting head for stable, consistent operation. Built from pressed steel with a durable finish, it is engineered to withstand impact, abrasion and frequent head changes. The cup helps maintain correct head alignment on the gearbox output, supporting both line trimmer heads and brushcutter blades for reliable cutting in demanding conditions. It is a direct replacement for OEM No. 528 81 81-01 and is suitable for popular machines such as the Husqvarna 143RII and 236R. For users who carry out regular maintenance or repairs, this part offers a straightforward, dependable way to restore factory fit and performance on compatible Husqvarna models.
Key Features:
- Genuine Husqvarna part for assured fit and reliability
- Pressed steel construction for strength and long service life
- Provides stable support to reduce vibration and improve cut quality
- Direct replacement for OEM No. 528 81 81-01
- Compatible with trimmer heads and brushcutter blade setups
- Resistant to knocks, wear and routine cleaning solvents
- Accurate geometry to maintain correct head alignment on the shaft
- Straightforward installation with standard hand tools
- Suitable for professional landscaping and frequent DIY use
- Helps protect surrounding drive components by keeping loads correctly supported
Typical Applications:
Used on Husqvarna brushcutters to support and stabilise the cutting head during grass trimming, weed clearance and brush cutting. Ideal for grounds maintenance, estate and farm work, commercial landscaping, and domestic garden upkeep where dependable head support is required for line heads or metal blades.
Also known as:
Support flange, flange cup, trimmer head cup, cup washer, blade support cup, head support flange, gearbox support cup, thrust cup.
Fits Models:
143RII, 143RS, 143RST, 236R, 243R, 243RJ, 253R, 253RB, 253RJ, 531RS, 541RS, 541RST, 543RBX, 543RS, 553RBX, 553RS
Alternate Part Numbers:
528 81 81-01, 528818101
Product Specifications
| L&S Part No. | 528 81 81 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 528818101 |
| Unit of Sale | 1 |
| Applications | 143RII, 143RS, 143RST, 236R, 243R, 243RJ, 253R, 253RB, 253RJ, 531RS, 541RS, 541RST, 543RBX, 543RS, 553RBX, 553RS |
| Machine Type | Brushcutters |
| Fits Brands | Husqvarna |
| Fits Models | 143RII | 236R | 243R | 243RJ | 253R | 253RJ | 531RS | 541RS | 541RST | 543RBX | 543RS | 553RBX | 553RS | 143RS | 143RST |
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