Description
Overview:
The Spark Plug CMR7H for Husqvarna handheld machines is a genuine NGK part supplied for Husqvarna equipment. It provides the consistent ignition your engine needs for easy starting and smooth running. Built with a durable metal shell and a high-grade ceramic insulator, it is designed to withstand vibration and high temperatures in professional and domestic use. This plug suits a wide range of Husqvarna two‐stroke tools such as brushcutters, blowers and chainsaws, including the 253R and 360BT. With a 16 mm hex size for straightforward fitting, it replaces Husqvarna part number 521 23 34-01 (521233401). If you are servicing your machine or restoring performance after hard starting or misfiring, this genuine NGK CMR7H is a reliable, long-life choice.
Key Features:
- Genuine Part: NGK spark plug to OEM specification for Husqvarna handheld machines
- Reliable ignition for easy starts, steady idle and dependable performance under load
- Robust construction with a corrosion‐resistant metal shell and ceramic insulator for durability
- 16 mm hex size for quick installation and removal with a standard spark plug spanner
- Helps maintain power output and fuel efficiency by delivering a consistent spark
- Reduces the risk of fouling when the engine is correctly tuned and maintained
- Suitable for common two‐stroke applications across brushcutters, backpack blowers and chainsaws
- Direct replacement for Husqvarna 521 23 34-01 (521233401) on listed models
- Straightforward maintenance item; fitment typically takes only a few minutes
- Supports engine longevity by promoting clean combustion when used with quality fuel and correct oil mix
Typical Applications:
Used during routine servicing or troubleshooting hard starting, rough running or misfiring on Husqvarna handheld machines. Ideal for brushcutting, clearing and landscaping work, backpack leaf blowing, and arborist or ground saw use where reliable, repeatable ignition is essential throughout the working day.
Also known as:
Ignition plug, small engine spark plug, two‐stroke spark plug, garden machinery spark plug, handheld machinery plug.
Fits Models:
253R, 253RJ, 360BT, 540XP Mark III, 543XP, 543XPG, 553RBX, 553RS, 560BFS, 560BTS, 570BFS, 570BTS, 578BTF, 580BFS, 580BFS Mark II, 580BFS Mark III, 580BFSMarkII, 580BFSMarkIII, 580BTS, 580BTS Mark II, 580BTS Mark III, 580BTSMarkII, 580BTSMarkIII, 590BFS, 590BTS, T540 XP Mark III, T540XPMarkIII
Alternate Part Numbers:
521 23 34-01, 521233401
Product Specifications
| L&S Part No. | 521 23 34 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 521233401 |
| Unit of Sale | 1 |
| Applications | 253R, 253RJ, 360BT, 540XP Mark III, 543XP, 543XPG, 553RBX, 553RS, 560BFS, 560BTS, 570BFS, 570BTS, 578BTF, 580BFS, 580BFS Mark II, 580BFS Mark III, 580BFSMarkII, 580BFSMarkIII, 580BTS, 580BTS Mark II, 580BTS Mark III, 580BTSMarkII, 580BTSMarkIII, 590BFS, 590BTS, T540 XP Mark III, T540XPMarkIII |
| Machine Type | Brushcutters, Chainsaws, Backpack Blowers |
| Fits Brands | Husqvarna |
| Fits Models | 543XP | 543XPG | 253R | 253RJ | 360BT | 560BFS | 560BTS | 570BFS | 570BTS | 578BTF | 580BFS | 580BTS | 553RBX | 553RS | T540 XP Mark III | 540XP Mark III | 580BFS Mark II | 580BFS Mark III | 580BTS Mark II | 580BTS Mark III | 590BFS | 590BTS |
