STIHL Service Kit 46 for HS 45 Petrol Hedge Trimmer (2‑MIX Engine)

If your HS 45 starts a little harder, feels down on power, or you simply want to keep it running sweet, this STIHL Service Kit 46 lets you handle the basic maintenance yourself in minutes. Swapping the air filter, fuel filter and spark plug keeps the 2‑MIX engine protected, efficient and easy to start—so your hedge trimming stays reliable.

Regular, proactive care prevents dirt and wear from building up in the engine. With the right parts at hand, you avoid avoidable repairs and keep your trimmer ready when the job can’t wait.

Where this kit shines

• Routine tune‑up before the trimming season
• Fixing poor starting or uneven running
• Reducing fuel use with a clean air path
• Protecting the engine when working in dusty hedges

Why it helps

• Fleece air filter blocks fine dust and larger debris
• Spark plug restores clean, reliable ignition
• Fuel filter keeps particles out of the carburettor
• Designed specifically for HS 45 with STIHL 2‑MIX engine

Hands-on use

• Swap the air filter and spark plug using the STIHL combination wrench supplied with your trimmer
• Use the included cardboard hook from the kit to remove and refit the fuel filter—no extra tools needed
• Check your spark plug thread: this kit suits models requiring an M10 plug

What’s inside and key details

• Included parts: fleece air filter, spark plug, fuel filter
• Compatibility: STIHL HS 45 petrol hedge trimmer with STIHL 2‑MIX engine
• Note: Only for HS 45 versions with M10 spark plug thread

Advice from gardenmachineshop.com

After fitting the new parts, run the HS 45 for a few minutes at varying speeds to let the fresh filters and plug bed in before you start trimming.

Returns: as a consumer you can withdraw from your purchase within 14 days of receiving it, without giving a reason – this also applies to parts we order in specially for you. See our Refund & return policy for how to return an item and who pays the return shipping.