Description
The Champion Spark Plug 845 (J17LM) is a dependable OE-type replacement spark plug designed for consistent ignition performance and long service life. Its copper core center electrode helps improve conductivity and heat control, supporting reliable starts, reduced fouling, and steady wear across a wide range of compatible outdoor power equipment and small engine applications.
Built to ISO and SAE standards, this Champion Copper Plus plug is designed for standard replacement use in lawn and garden equipment, tillers, snow equipment, blowers, and other small engine applications. The flat-seat design, nickel electrode materials, removable nut terminal, and crush washer configuration help support dependable installation and reliable service in compatible equipment.
Features
- OE-type replacement spark plug
- Champion Copper Plus Small Engine classification
- Dependable performance and durability
- Copper core center electrode for improved conductivity and heat control
- Resists fouling
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
- Plug type: J17LM
- Part description: Spark Plug
- Grade type: Standard Replacement
- Center electrode tip material: Nickel
- Center electrode design: Standard
- Ground electrode quantity: 1
- Ground electrode tip material: Nickel
- Ground electrode core material: Nickel
- Pre-gap size: 0.025 in. / 0.65 mm
- Hex size: 0.813 in. / 20.650 mm
- Manufacturer heat range: 17
- Seat type: Flat
- Reach: 0.375 in.
- Thread diameter: 0.551 in. / 14.000 mm
- Resistor type: No
- Electrical terminal type: Removable Nut
- Hex type: Hex
- Washer included: Yes
- Washer type: Crush
- Indexed: No
- Subject to Prop 65: No
Vehicle Fitment
Agricultural, Industrial, Construction, and Equipment Fitment
Compatible with listed applications including, but not limited to:
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Ariens — 936, 926DLE
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Baker — 8/12 C/S, 8/14 C/S
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BlueBird — Base
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Briggs & Stratton — Base
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Brushking — BK85, BK100
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Columbia — Base
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Craftsman — Base, 247.775860, 247.780890, 247.780891, 247.780892, 247.795890, 247.795940, 247.799620, 247.799640, 247.885680, 502.255060, 536.772301, 536.772400, 580.327060, 580.741700, 917.299642, 919.679501, 987.293190, 987.293330
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Earthquake (Ardisam) — 9000, 9200
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Eaton — Base
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Eskimo — 9000, 9200
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Flo-Mow — Base
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Flymo — Base, GCT21
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Fradan — BB-75 Backpack
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Garden Star — Base
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Gilson — Base
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Hoffco — P Series AV250, PH980, PH1700-A, WW88
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Homelite-Jacobsen — Base, MTC12
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Husqvarna — Base, HTV1200, HTV1500, HTV2000, HVT52, Master 46
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Jacobsen — Base, 321
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Jiffy — Base
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John Deere — 80G, 85G, 314F
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Jollyhoe — Base
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Landmark — Base
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Little Beaver — Base
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MTD — Base
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Murray — Base
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Onan — Base
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Simplicity — Base, 5/10 C/S, 8/12 C/S, 8/14 C/S, 555 ST, 755 ST
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Snapper — Base
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Snow Champ — Base
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Snow King — Base
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Snow Trac — Base
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Tecumseh-powered equipment applications — numerous Base listings
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Toro — Base
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Transitier — All Model(s)
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Turf-Til — Base
Additional Engine and Power Unit Fitment
Also listed for numerous standalone engine and power unit applications, including:
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0.3TL-212R/1A — 1-cylinder application
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AV520 — 1-cylinder application
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AV600 — 1-cylinder application
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H50 — 1-cylinder application
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H60 — 1-cylinder application
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H70 — 1-cylinder application
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H80 — 1-cylinder application
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HM70 — 1-cylinder application
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HM80 — 1-cylinder application
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HM85 — 1-cylinder application
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HM90 — 1-cylinder application
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HM100 — 1-cylinder application
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HS40 — 1-cylinder application
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HS50 — 1-cylinder application
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MV100 — 1-cylinder application
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TVM195 — 1-cylinder application
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TVM220 — 1-cylinder application
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TVO85XA — 1-cylinder application
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TVS600 — 1-cylinder application
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VLV126 — 1-cylinder application
