Description
Overview:
The Ignition Tester suitable for Stihl TS 410 and MS 171 is a genuine Stihl tool designed to quickly confirm spark and diagnose ignition faults on small petrol engines. Built with a durable, impact‐resistant plastic body, insulated rubber boots and metal contacts, it sits inline between the HT lead and the spark plug so you can view the spark without dismantling the ignition system. A clear viewing window makes it easy to see the flash while cranking. Ideal for two‐stroke and Stihl 4‐MIX engines across handheld tools and cut‐off saws, it supports routine servicing and fault finding with accuracy. Manufacturer Part Number (MPN): 5910 850 4520. Compatible with popular machines including the TS 410 cut-off saw and MS 171/MS 181 chainsaws.
Key Features:
- Genuine Stihl part for assured compatibility and performance (MPN 5910 850 4520)
- Robust construction for workshop and site use, with insulated boots for user safety
- Inline design connects between HT lead and plug for fast, repeatable checks
- Clear window shows spark strength and consistency while cranking
- Helps diagnose no-start, weak spark, misfire and intermittent ignition issues
- Suitable for a wide range of Stihl two‐stroke and 4‐MIX engines
- Simple to use for both professionals and DIY users-no special tools required
- Compact, lightweight and easy to keep in a service kit
Typical Applications:
Quick verification of ignition coil output, HT lead and cap integrity, and plug firing on chainsaws, cut‐off saws, hedge trimmers, Kombi engines, sprayers and MultiSystem tools. Useful during routine servicing, after flooding or storage, and when diagnosing starting problems, misfires or poor running under load.
Also known as:
Ignition checker, inline spark tester, spark plug tester, HT lead tester, coil tester, engine spark tester, ignition spark viewer, ignition system tester.
Fits Models:
FT 100, 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 100, HL 100 K, KM 10, KM 55, KM 55 C, KM 55 R, KM 55 RC, KM 56 C, KM 85 R, KM 94 R, KM 94 RC, MM 56, MM 56 MultiSystem, MS 171, MS 181, SP 90, SP 90 T, SP 92 C, SP 92 TC, SR 200, SR 430, SR 440, SR 450, TS 410
Alternate Part Numbers:
5910-850-4520, 59108504520
Product Specifications
| L&S Part No. | 5910 850 4520 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 59108504520 |
| Unit of Sale | 1 |
| Applications | FT 100, FT100, HL 100, HL 100 K, HL 90 K, HL 91 K, HL 91 KC, HL 92 C, HL 92 KC, HL 94, HL 94 C, HL 94 K, HL 95, HL 95 K, HL100, HL100K, HL90K, HL91K, HL91KC, HL92C, HL92KC, HL94, HL94C, HL94K, HL95, HL95K, KM 10, KM 55, KM 55 C, KM 55 R, KM 55 RC, KM 56 C, KM 85 R, KM 94 R, KM 94 RC, KM10, KM55, KM55C, KM55R, KM55RC, KM56C, KM85R, KM94R, KM94RC, MM 56, MM 56 MultiSystem, MM56, MS 171, MS 181, MS171, MS181, SP 90, SP 90 T, SP 92 C, SP 92 TC, SP90, SP90T, SP92C, SP92TC, SR 200, SR 430, SR 440, SR 450, SR200, SR430, SR440, SR450, TS 410, TS410 |
| Machine Type | Disc Cutters, Chainsaws, Long Reach Hedgetrimmers, Mist Blowers, Kombi Engines |
| Fits Brands | Stihl |
| Fits Models | MM 56 MultiSystem |
