



⚡ Ignite your engine’s potential with Champion’s trusted spark!
The Champion RJ19LM spark plug is a copper-core, vehicle-specific ignition component designed for small engines like lawnmowers and chainsaws. Renowned for delivering OE-level spark performance, it boasts a 4.8-star rating from over 4,000 users and ensures reliable, efficient engine starts with easy installation and proven durability.
| ASIN | B003RJS3HI |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #3,453 in Automotive ( See Top 100 in Automotive ) #8 in Automotive Replacement Spark Plugs |
| Brand | Champion |
| Core Material | Copper |
| Customer Reviews | 4.8 4.8 out of 5 stars (4,055) |
| Date First Available | October 30, 2010 |
| Global Trade Identification Number | 05010874509481 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.76 ounces |
| Item model number | RJ19LM |
| Manufacturer | Champion |
| Manufacturer Part Number | RJ19LM |
| Model | CHAMPION_21030319_5010874509481 |
| Position | Center |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Thread Size | 14x9.5mm |
| Top Material Type | Metal |
| UPC | 802167303853 |
| Vehicle Service Type | Motosierras,Motosierras. |
C**.
Perfect spark.
Good old traditional spark plug made by Champion. Works great, but had to adjust gap for my lawnmower.
B**Z
Reliable Spark Plug for Small Engine Maintenance
This Champion RJ19LM spark plug is the recommended replacement for my Craftsman lawn mower model 917.376651. Installation was simple, and the plug worked as expected. I noticed an immediate improvement in engine performance. This quality spark plug offers great value for keeping a small engine running smoothly.
A**R
High quality. Not made in China.
The right product for the job. My mower runs well again. It's nice to buy a product not made in communist China.
R**S
Genuine Part
Cheap, not cheaply. Delivered on time. Worked the first crank. This is my second reorder.
D**O
The spark plug I needed
I received this as scheduled and it was exactly as described. My lawn mower is running better now, and I am a happy shopper.
T**L
Sparks up.
Works as expected.
J**C
Perfect fit in go cart but having issues now
I have a go cart that’s a little older. It was well cared for and ran on the same plug for a few years. I decide to buy a new one and change oil, etc. the first pull this started right up and I swear it had a little more power. However after we ran it 2 times for around an hour I’m having trouble getting spark. Not sure it is the plugs problem but that’s the only thing I’ve changed. Will likely buy another and see if it’s the plug. Easy to install, good price point. I adjusted the gap but it didn’t seem to matter after I replace this one I will update this review and note if I am having same issue with new plug or if it’s something else.
L**Y
Works
Fits
C**N
Funciona perfectamente en mi cortacésped
C**N
Parfait correspond bien à la description
J**N
Bra tändstift för gräsklippare
B**R
Geht Super für den Rasenmäher
R**1
Spark plug. Exactly as described. Does the job.
Trustpilot
1 day ago
3 weeks ago