Description
Overview:
This blade boss/support is a replacement structural spacer for Viking walk‐behind lawn mowers, supplied under Stihl branding with MPN 6105 702 5021. It is made from metal alloy that locates and supports the blade and is sacrificed to protect the engine shaft when the blade hits large objects. By keeping parts aligned and secure, it helps reduce play and vibration and maintains smooth operation. Suitable for various Viking models such as MB 2 R and MB 2 RT, it is designed to replace worn or damaged originals during routine servicing or repair. The part is compact, lightweight, and built for regular use, making it a practical choice for keeping your mower's chassis and related assemblies stable and reliable over time.
Key Features:
- Accurate fit to the listed Viking models for straightforward replacement
- Sacrificial part protects engine shaft against shocks
- Helps maintain alignment and stability, reducing vibration and noise
- Corrosion‐proof material for outdoor use and wet grass conditions
- Lightweight design that does not add strain to the mower chassis
- Metal alloy construction
- Consistent dimensions for repeatable results during servicing
- Suitable for preventative maintenance as well as repairs
Typical Applications:
Used during mower servicing to replace a worn or sacrificed blade boss within the chassis or deck area, to restore correct spacing, alignment, and stability. Helps address symptoms such as looseness, rattle, or uneven operation after long use. Common in routine refurbishments, wheel or deck‐related repairs, and when reassembling components after cleaning or blade work.
Also known as:
Hub spacer, mounting boss, support bush, chassis spacer, mower hub support, locating boss, lawn mower support insert, structural spacer.
Fits Models:
MB 2 R, MB 2 RT, MB 2.0 RC, MB 2.0 RTX, MB 2.1 R, MB 2.2 R, MB 2.2 RC, MB 2.2 RT, MB 253.0, MB 253.0 T, MB 3 R, MB 410, MB 415, MB 443.0, MB 443.0 C, MB 443.0 T, MB 443.0 X, MB 443.1, MB 443.1 T, MB 448.0, MB 448.0 T, MB 448.0 TX, MB 448.1 T, MB 448.1 TC, MB 448.1 TX, MB 460, MB 465, MB 465 C
Product Specifications
| L&S Part No. | 6105 702 5021 |
|---|---|
| Manufacturer | Stihl |
| OEM No. | 61057025021 |
| Unit of Sale | 1 |
| Machine Type | Mowers |
| Fits Brands | Viking |
| Key Features | - Accurate fit for Viking models MB 2 R, MB 2 RT, and more - Tough, wear-resistant material ensures long service life - Reduces vibration and noise by maintaining alignment - Corrosion-proof for outdoor and wet conditions - Lightweight design minimises strain on mower chassis |
| Fits Models | MB 253.0 | MB 253.0 T | MB 443.1 T | MB 448.1 T | MB 448.1 TC | MB 410 | MB 415 | MB 443.0 | MB 443.1 | MB 443.0 C | MB 443.0 T | MB 443.0 X | MB 448.1 TX | MB 448.0 T | MB 448.0 | MB 448.0 TX | MB 460 | MB 465 | MB 465 C | MB 2.2 RT | MB 2 R | MB 2.1 R | MB 2.2 R | MB 2.0 RC | MB 2.2 RC | MB 2.0 RTX | MB 2 RT | MB 3 R |
