Description:
The Champion Copper Plus Spark Plug 856 (RJ17LM) is a dependable OEM-style replacement designed for consistent ignition performance in a wide range of small engines. Featuring a copper core center electrode, this spark plug provides excellent conductivity and precise heat control to support efficient combustion and extended service life.
Built to resist fouling and corrosion, it helps ensure reliable starting and smooth engine operation in outdoor power equipment. Manufactured to ISO and SAE standards, this plug delivers proven durability and consistent performance for routine maintenance and replacement applications.
Features:
- Copper core center electrode for improved conductivity and heat control
- OE-type replacement for reliable fit and performance
- Resists fouling for consistent ignition reliability
- Nickel center and ground electrodes for durability
- Superior corrosion resistance
- Built to ISO and SAE standards
- J-gap design for stable spark delivery
- Resistor type for reduced electrical interference
- Includes crush washer for proper sealing
- Non-removable terminal nut
Vehicle Fitment
Simplicity
- Base
- 555 ST
- 5/10 C/S
- 755 ST
- 8/14 C/S
- 8/12 C/S
Eskimo
Earthquake (Ardisam)
BlueBird
Landmark
Fradan
Hoffco
- PH1700-A
- PH980
- WW88
- P Series AV250
Craftsman
- Base
- 987.293190
- 247.298760
- 502.255060
- 247.780890
- 247.780891
- 917.242484
- 536.772400
- 247.799640
- 247.795890
- 987.293330
- 247.780892
- 580.741700
- 247.885680
- 917.299642
- 580.327060
- 536.918300
- 917.299230
- 536.772301
- 247.799620
- 247.795940
- 247.775860
- 919.679501
Flymo
MTD
Transitier
Snapper
Little Beaver
Jiffy
Columbia
Tecumseh (Equipment Applications)
Homelite-Jacobsen
Toro
Snow Trac
Murray
Eaton
Turf-Til
Brushking
Husqvarna
- HTV1200
- HVT2000
- HVT52
- HTV1500
- Master 46
- Base
Jollyhoe
Ariens
Onan
Baker
Briggs & Stratton
Garden Star
John Deere
Gilson
Snow King
Flo-Mow
Jacobsen
Engine Fitment
- Tecumseh HS50
- Tecumseh TVM195
- Tecumseh VLV126
- Tecumseh HS40
- Tecumseh AV600
- Tecumseh HM85
- Tecumseh HM80
- Tecumseh H50
- Tecumseh H80
- Tecumseh HM100
- Tecumseh 0.3TL-212R/1A
- Tecumseh TVS600
- Tecumseh H70
- Tecumseh TVO85XA
- Tecumseh H60
- Tecumseh AV520
- Tecumseh HM70
- Tecumseh HM90
- Tecumseh MV100
- Tecumseh TVM220