Description
Overview:
The Genuine NGK CMR7A Spark Plug (NGK part number 7543) is a resistor-type spark plug for compact petrol small engines. Built with a robust steel shell and a high-quality ceramic insulator, it delivers a clean, consistent spark to support easy starting, stable idling, and efficient running. It suits many handheld tools used in gardening, landscaping, and light construction, including chainsaws and trimmers such as the PS-32 and PS-351. NGK's dependable design helps reduce misfires and fouling, supporting reliable performance in everyday use. The CMR7A is a practical replacement choice for routine servicing to keep tools running smoothly and within manufacturer recommendations. This is a Genuine NGK Part, supplied individually.
Key Features:
- Genuine NGK part for dependable performance and fit
- Resistor design helps reduce electrical interference for smoother running
- Durable construction for long service life in demanding handheld tools
- Consistent ignition for easier cold starts and steady throttle response
- Helps maintain efficient combustion and reduce plug fouling
- Compatible across many small 2‐stroke and 4‐stroke petrol engines
- Compact body suited to tight engine bays on handheld equipment
- Easy to fit using a standard 5/8 in (16 mm) plug socket
- Corrosion-resistant finish for reliability in outdoor conditions
- Sold individually for straightforward servicing or replacements
Typical Applications:
Used in petrol chainsaws, grass trimmers/strimmers, brushcutters, hedge trimmers, blowers, and multi-tools found in domestic gardens, landscaping, forestry, and grounds maintenance. Ideal for routine tune‐ups, fault finding after hard starting or misfiring, and preventative maintenance on professional and DIY equipment.
Also known as:
Sparkplug, ignition plug, engine plug, resistor spark plug, small engine spark plug, lawn and garden spark plug for handheld equipment.
Fits Models:
51930, 51932, 51934, BCZ2602DL, BH2500, DS 3200, DS3200, EA4300, EXZ2600DL, FC73, FC83, FS73, FS83, G2000T, G230, HB2301, HBZ2600/1, HL73, HT73, Jet DS 2800, JetDS2800, LRTZ2600, PS-32, PS-351, PS-421, PS32, PS351, PS421, PSZ2600, RBC430SBSC, RBC430SESC, SGCZ2600DL/W, SRTZ2600, SRTZ2601F
Alternate Part Numbers:
7543
Product Specifications
| L&S Part No. | CMR7A |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 7543 |
| Unit of Sale | 1 |
| Applications | 51930, 51932, 51934, BCZ2602DL, BH2500, DS 3200, DS3200, EA4300, EXZ2600DL, FC73, FC83, FS73, FS83, G2000T, G230, HB2301, HBZ2600/1, HL73, HT73, Jet DS 2800, JetDS2800, LRTZ2600, PS-32, PS-351, PS-421, PS32, PS351, PS421, PSZ2600, RBC430SBSC, RBC430SESC, SGCZ2600DL/W, SRTZ2600, SRTZ2601F |
| Machine Type | Chainsaws, Trimmers |
