Overview:
The Genuine NGK CMR6H Spark Plug is a precision-engineered ignition component built to deliver consistent performance in small engines. Specifically designed to suit Honda GX25 engines and a wide variety of outdoor power equipment, this plug (OEM No. 3365) ensures reliable starts, efficient combustion, and long-lasting engine health.
Key Features:
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Thread Size: 10mm (3/8″)
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Thread Pitch: 1mm (1/16″)
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Reach: 12.7mm (1/2″)
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Gap: 0.7mm (0.03″)
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Hex Size: 16mm (5/8″)
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Supplied individually for easy, cost-effective replacement
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Genuine NGK construction – trusted by professionals worldwide
Common Uses:
Ideal for use in strimmers, chainsaws, trimmers, hedge cutters, leaf blowers, brushcutters, and other compact power tools, the NGK CMR6H spark plug is engineered for engines where reliability is critical. Its compatibility with Honda GX25 and other models makes it a top choice for both domestic and commercial users.
Also Known As:
This part may also be referred to as a spark igniter, engine spark plug, or ignition plug—key to smooth ignition and consistent power output.
Fits Models Including:
GX25, 545FX, 545FXT, 545RX, 545RXT, 550XP, 550XPG, 555, 560XP, 560XPG, T435, T540XP, CS2258, CS2260, CS2260WH, T2600, BG56, BG66, BG86, SH56, SH86, BR200, BR500, BR550, BR600, BR700, FC56, FC70, FC90, FC95, FC100, FC110, FS40, FS50, FS70, FS56, FS87, FS90, FS100, FS110, FR130, FS130, FS310, FS460 C-EM, MS150 C-E, MS171, MS181, MS181 C, MS192 C-E, MS211, MS211 C, MS231, MS251, MS241 C-M, HT100, HT101, HT130, HT131, KM56, KM90, KM100, KM110, KM130, HL90, HL95, HL100, HS81, HS86, HS46 C-E, HS56 C-E, MS 201 T, MS 201 TC, FR130T, FS100R, FS100RX, FS110R, FS110X, FS110RX, FS130R, FS460C, FS460RC, FS56C, FS56R, FS70C, FS70R, FS70RC, FS90R, FS94, FS94 C, FS94R, FS94RC, GX25 (GCAAM), GX25 (GCABK), GX25 (GCABM), HL100K, HL90K, HL95K, HS 46, HS46 C, HS56, KM100R, KM110R, KM130R, KM56C, KM56RC, KM90R, MS150C, MS171C, MS181C, MS192C, MS192T, MS192TC, MS201, MS201C, MS201T, MS201TC, MS211C, MS241C 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
Whether you’re servicing a strimmer, brushcutter, or compact chainsaw, this spark plug delivers efficient, long-term ignition performance.
Manufacturer: NGK
OEM Part Number: 3365
Alternate Part Numbers: USR7AC, 0000 400 7011, 00004007011
Unit of Sale: 1








