Description
Overview:
This is a Genuine NGK CMR6H spark plug designed for Honda GX25 small four-stroke engines and other compact machinery. It uses a durable metal shell with a white ceramic insulator, and a nickel-alloy, copper-core electrode to deliver dependable ignition and consistent combustion. As a resistor-type plug, it helps reduce radio interference in modern equipment. With an M10 x 1.0 thread and 12.7 mm reach (1/2 in), it suits tight cylinder heads found on handheld tools. Typical uses include brushcutters and blowers, as well as compact chainsaws. Ideal for routine servicing of Honda GX25-powered tools and widely specified across machines such as the Stihl FS94. This is a Genuine Part from NGK for assured quality and fit.
Key Features:
- Genuine NGK OEM spark plug CMR6H for Honda GX25 and many small engines
- Resistor type for effective RFI/EMI suppression in modern ignition systems
- M10 x 1.0 thread, 12.7 mm reach (1/2 in) for compact cylinder heads
- 16 mm hex (5/8 in) for easy removal/installation with a standard plug spanner
- Factory gap 0.7 mm (approx 0.03 in) suited to small-engine ignition systems
- Nickel-alloy electrode with copper core for reliable starting and heat control
- Smooth running, stable idle, and clean combustion when correctly gapped
- Robust construction for long service life under typical outdoor conditions
- Sold individually to match one-cylinder service needs
- Widely used across trimmers, brushcutters, blowers, and compact chainsaws
Typical Applications:
Used during routine servicing or fault-finding to restore reliable starting and smooth operation in handheld outdoor power equipment. Suitable for Honda GX25-powered tools and many trimmers, brushcutters, hedge trimmers, blowers, and compact chainsaws. Ideal when replacing worn or fouled plugs to improve ignition reliability and maintain engine performance.
Also known as:
Ignition plug, engine spark plug, spark igniter, resistor spark plug, small-engine plug, NGK CMR6H plug.
Fits Models:
545FX, 545FXT, 545RX, 545RXT, 550XP, 550XPG, 555, 560XP, 560XPG, BG56, BG66, BG86, BR200, BR500, BR550, BR600, BR700, CS2258, CS2260, CS2260WH, FC100, FC110, FC56, FC70, FC90, FC95, FR130, FR130T, FS100, FS100R, FS100RX, FS110, FS110R, FS110RX, FS110X, FS130, FS130R, FS310, FS40, FS460 C-EM, FS460C, FS460C-EM, FS460RC, FS50, FS56, FS56C, FS56R, FS70, FS70C, FS70R, FS70RC, FS87, FS90, FS90R, FS94, FS94 C, FS94C, FS94R, FS94RC, GX25, HL100, HL100K, HL90, HL90K, HL95, HL95K, HS 46, HS46, HS46 C, HS46 C-E, HS46C, HS46C-E, HS46CE, HS56, HS56 C-E, HS56C-E, HS56CE, HS81, HS86, HT100, HT101, HT130, HT131, KM100, KM100R, KM110, KM110R, KM130, KM130R, KM56, KM56C, KM56RC, KM90, KM90R, MS 201 T, MS 201 TC, MS150 C-E, MS150C, MS150C-E, MS150CE, MS171, MS171C, MS181, MS181 C, MS181C, MS192 C-E, MS192C, MS192C-E, MS192CE, MS192T, MS192TC, MS201, MS201C, MS201T, MS201TC, MS211, MS211 C, MS211C, MS231, MS241 C-M, MS241C, MS241C-M, MS241CM, MS251, SH56, SH86, T2600, T435, T540XP
Alternate Part Numbers:
0000 400 7011, 00004007011, USR7AC
Product Specifications
| L&S Part No. | CMR6H |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 3365 |
| Unit of Sale | 1 |
| Applications | 545FX, 545FXT, 545RX, 545RXT, 550XP, 550XPG, 555, 560XP, 560XPG, BG56, BG66, BG86, BR200, BR500, BR550, BR600, BR700, CS2258, CS2260, CS2260WH, FC100, FC110, FC56, FC70, FC90, FC95, FR130, FR130T, FS100, FS100R, FS100RX, FS110, FS110R, FS110RX, FS110X, FS130, FS130R, FS310, FS40, FS460 C-EM, FS460C, FS460C-EM, FS460RC, FS50, FS56, FS56C, FS56R, FS70, FS70C, FS70R, FS70RC, FS87, FS90, FS90R, FS94, FS94 C, FS94C, FS94R, FS94RC, GX25, HL100, HL100K, HL90, HL90K, HL95, HL95K, HS 46, HS46, HS46 C, HS46 C-E, HS46C, HS46C-E, HS46CE, HS56, HS56 C-E, HS56C-E, HS56CE, HS81, HS86, HT100, HT101, HT130, HT131, KM100, KM100R, KM110, KM110R, KM130, KM130R, KM56, KM56C, KM56RC, KM90, KM90R, MS 201 T, MS 201 TC, MS150 C-E, MS150C, MS150C-E, MS150CE, MS171, MS171C, MS181, MS181 C, MS181C, MS192 C-E, MS192C, MS192C-E, MS192CE, MS192T, MS192TC, MS201, MS201C, MS201T, MS201TC, MS211, MS211 C, MS211C, MS231, MS241 C-M, MS241C, MS241C-M, MS241CM, MS251, SH56, SH86, T2600, T435, T540XP |
| Machine Type | Brushcutters, Chainsaws, Blower/Shredders, Backpack Blowers |
| Fits Models | MS192C, MS192T, MS192TC | MS171, MS171C | MS181, MS181C | MS211, MS211C | MS201, MS201C, MS201T, MS201TC | FS40, FS50 | FS56, FS56C, FS56R | FS90, FS90R | FS100, FS110 | FS130, FS130R | FS310 | FS460C, FS460RC | BG56 | BR500 | HS 46, HS46 C | HS81, HS86 | BG66 | BG86 | BR200 | SH56, SH86 | FS70C, FS70R, FS70RC | MS231, MS251 | MS241C | MS150C | HT100 | HT101 | HT130 | HT131 | KM56C, KM56RC | KM90, KM90R | 550XP, 550XPG | 555 | 560XP, 560XPG | T435 | T540XP | 545FX | 545RX | 545RXT | 545FXT | GX25 (GCAAM) | GX25 (GCABK) | GX25 (GCABM) | HL90K, HL90, HL95K | HL100, HL100K | FR130T | KM100, KM100R, KM110R | KM130, KM130R | FS94, FS94 C, FS94R, FS94RC | BR550 | BR600 | BR700 | HS56 |
