Description
Overview:
This is a genuine Stihl compression tester (part number 5910 850 2000) for checking cylinder pressure on small two‐stroke engines used across Stihl handheld machines, including brushcutters and Kombi engines such as the FS 87 and FS 90. Built for workshop and field use, it combines a robust analogue pressure gauge, durable metal fittings and a flexible hose to give consistent readings during diagnostics. By measuring cranking compression through the spark plug hole, it helps confirm engine condition and supports accurate fault‐finding before repairs or parts replacement. Designed by Stihl for compatibility with a wide range of their tools, it offers dependable performance, straightforward operation and long service life, making it a practical addition to any maintenance kit for professionals and DIY users alike.
Key Features:
- Genuine Stihl diagnostic tool for assured fit and reliability (MPN 5910 850 2000)
- Accurate cylinder pressure measurement to support clear engine diagnostics
- Tough, workshop‐ready construction with metal connectors and flexible hose
- Clear analogue gauge for quick readings during cranking tests
- Designed for Stihl two‐stroke engines across brushcutters, blowers, hedge trimmers and Kombi powerheads
- Helps identify issues such as worn piston rings, leaking gaskets or reed/valve problems
- Simple to use: connect at the spark plug port, crank, read, and compare with spec
- Consistent sealing for repeatable results when testing warm or cold engines
- Suitable for routine maintenance, troubleshooting and post‐repair verification
Typical Applications:
Used to confirm engine health during routine servicing, to investigate hard starting, poor idle, loss of power or high fuel use, and to verify top‐end condition after piston, cylinder or gasket work. Useful before investing in further parts, and for regular fleet checks on site or in the workshop.
Also known as:
Compression gauge, engine compression tester, cylinder pressure tester, compression test gauge, small‐engine compression tool, two‐stroke compression tester.
Fits Models:
FS 87, FS 87 R, FS 89, FS 89 R, FS 90, FS 90 R, FS 91, FS 91 R, FS 111, FS 111 R, FS 111 RX, FS 130, FS 130 R, FS 131, FS 131 R, FS 310, FS 311, FR 130 T, FR 131 T, FC 90, FC 95, FC 91, FC 96, FC 100, FC 110, FC 111, HL 90 K, HL 95, HL 95 K, HL 91 K, HL 91 KC, HL 92 C, HL 92 KC, HL 94, HL 94 C, HL 94 K, HL 94 KC, HL 100, HL 100 K, SP 90, SP 90 T, FT 100, KM 90, KM 90 R, KM 91 R, KM 100, KM 100 R, KM 110 R, KM 111 R, KM 130, KM 130 R, KM 131, KM 131 R, BT 130, BR 500, BR 550, BR 600, BR 700, HT 101, HT 102, HT 103, HT 130, HT 131, HT 132, HT 133, FS 100, FS 100 R, FS 100 RX, FS 110, FS 110 R, FS 110 X, FS 110 RX
Alternate Part Numbers:
5910-850-2000, 59108502000
Product Specifications
| L&S Part No. | 5910 850 2000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 59108502000 |
| Unit of Sale | 1 |
| Machine Type | Brushcutters, Backpack Blowers, Pole Pruners, Kombi Engines |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part for reliable fit and function - Measures cylinder pressure for engine diagnostics - Metal fittings and flexible hose for durability - Compatible with Stihl two-stroke engines - Clear analogue gauge for easy reading |
| Fits Models | FS90, FS90R | FS100, FS110 | FS310 | FS91, FS91R | FS111, FS111R, FS111RX | FS131, FS131R | FS311 | FS89, FS89R |

