Champion Small Engine Spark Plug J19LM (861-1)
Champion Small Engine Spark Plug J19LM (861-1)
Low stock: 2 left
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A Champion J19LM small engine plug, a common fit in four stroke mower engines, so a mower that's hard to start or running rough can get a fresh plug and get back on the lawn.
It's a 14mm thread with a 3/8 inch (9.5mm) reach and a 13/16 inch hex, so it takes a standard plug socket. The J19LM is the non-resistor version, and if your engine calls for the other type, the one to look for is the RJ19LM, the resistor version. Check the gap against your engine's manual before you fit it, and start it by hand so you don't cross the thread.
Sold each on a card. Full specs are in the tabs below, and if you're not sure what plug your engine takes, bring the old one in to 34-52 Milnes Rd, Strathalbyn or call us on (08) 8536 4333.

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The details
- Brand: Champion
- Plug: J19LM
- Part number: 861-1
- Thread: 14mm
- Reach: 3/8 inch (9.5mm)
- Hex: 13/16 inch
- Resistor: No
- Use: Small four stroke engines
- Gap: Set to your engine's manual
- Sold: Each, carded
Shipping and Returns
We pack and send your order with care, right here from our Strathalbyn store. Most parcels leave within 1-2 business days, and you'll get tracking as soon as it's on the way. If you're local, you can choose click-and-collect or our delivery service at checkout.
If something arrives damaged or not quite right, let us know within 14 days and we'll sort it quickly. You can return unused items in their original condition for a refund or store credit. For safety reasons, we can't accept returns on gas bottles, cut materials, or custom orders.
We're here to make things easy, so if you ever have a question about your delivery or a return, our team is only a call away.
Why you'll love shopping with us
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Trade-grade, job-tested
This gear is selected for daily use on real job sites, not light-duty or one-off projects.
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Right gear, first time
We help you get the correct product and spec upfront so you’re not redoing work later.
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In and out fast
Call ahead and we'll set your order aside so you spend less time at the counter.