Best Spark Plug For Lawn Mower for 2023: Our Top 10 Picks

Sometimes it might be quite difficult to find the best spark plug for lawn mower. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this spark plug for lawn mower buying guide.

Our 10 Best Picks:

Best Spark Plug For Lawn Mower Reviews:

SaleBestseller No. 1
Briggs & Stratton Spark Plug For OHV Engines 5092K
  • Part# 496018s in display packaging
  • Replaces Briggs & Stratton Service Part #496018S
  • For Selected OHV Engines
  • Replaces RC14YC
  • Genuine Briggs & Stratton Part
Bestseller No. 2
RC12YC Spark Plug for RC12YC Compatible with Briggs & Stratton 491055 491055S 491055T 72347GS 72347 805015 M78543 for Kohler 12 132 02, 12 132 02-S, 25 132 12-S (Pack of 10)
  • RC12YC SPARK PLUG REPLACE for champion rc12yc 2829 71-1711, for John Deere M78543

  • Replace for Briggs and Stratton 491055, 491055S, 491055T, 499608, 5066, 72347GS, 792015, 805015, 692051, 694385

  • FIT FOR KOHLER 12 132 02, 12 132 02-S, 12 132 01-S, 25 132 12-A, 25 132 12-S, 24 132 01-S

  • REPLACE FOR ARIENS 21525900, 08811700, 21536800, 21534100, 21531100, 21537800; for Gravely 21531100, 21534100, 21536800; MTD CC 759-3336; for Husqvrana 531308128

  • FUNCTION OF RC12YC SPARK PLUG -- The spark plug adopts copper core electrode. The copper core central electrode can accurately control the thermal range of the spark plug, optimize the performance of the spark plug and prolong the service life of the spark plug. Spark plugs offer reliable performance and durability, superior corrosion resistance and longer service life. Please rest assured to buy!

Bestseller No. 3
Champion RJ19HX Lawn & Garden Equipment Engine Spark Plug Genuine Original Equipment Manufacturer (OEM) part
  • This part is compatible with models including; 125K02-0273-E1,125K02-0500-E1,125K07-0263-E1,126T02-1045-B1,123K02-0481-E1,123K02-0592-E1,124T02-0736-E1,126T02-1024-B1,125K02-0578-E1,124T05-3848-B2,124L05-0975-F1,125K02-0690-E1,124T02-3853-B2,124T02-3847-B2,123K02-0609-E1,126K02-0676-B1,125K02-0253-E1,125K02-0512-E1,126T02-0761-E1,125K02-0370-E1,125K02-0477-E1,124T05-0904-B1,122K02-0169-E1,125K07-0274-E1,125K02-0542-E1,125K02-0303-E3,125K02-0137-E1,125K02-0336-E1,125K05-0345-E1,126T05-1071-E1
  • Spark plug RJ19HX produces the spark that ignites the fuel in the engine
  • Genuine Original Equipment Manufacturer (OEM) part.
  • This spark plug (part number RJ19HX) is for lawn and garden equipment engines
Bestseller No. 4
Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black
  • For engines using part #5066K, 5092K, 496018S, 491055S, 696202, 699496, 71G, CHM71G, 531308128, M78543, 12 132 02-S, 4790 400 700, 21531100, RC12YC, RC14YC, RC12YX. Replaces 7133456
  • Spark Plugs that become worn or built-up with carbon will decrease the engine’s fuel efficiency and power.
  • Tools required: spark plug Wrench
  • Replace the spark plug each season.
Bestseller No. 6
Champion Spark Plug 4 Pack for Craftsman # 71G RC12YC-4pk
  • Genuine, OEM Champion Replacement Part
  • Champion replacement spark plug, part number 71G
SaleBestseller No. 7
E3 Spark Plugs E3.20 Lawn and Garden Spark Plug, Pack of 1
  • FOR OPTIMAL PERFORMANCE: Spark plug that fits a variety of 4-cycle engines, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
  • PATENTED TECHNOLOGY: DiamondFIRE features a unique design with an edge-to-edge spark path, which allows replenishment of the spark zone with a fresh fuel/air charge
  • INCREASED DURABILITY: Near elimination of performance inhibiting carbon deposits, which dramatically extends the life of the spark plug
  • REPLACES: Champion RC12YC, RC14YC; NGK BCP4ES-11, BKR4E, BKR4E-11, BKR5E, BKR5E-11, BKRES, BKR6EKB-11, FR4, FR5
  • Compatible with vehicle type: lawn and garden applications
SaleBestseller No. 8
Hipa 4 Pack 491055S Spark Plug RC12YC Compatible With Briggs 491055 72347GS 594056 491055MA 805015 M78543 KR5TC BCPR6ES Kohler 12-132-02 1213202-S Lawn Mower Tractor MTD 759-3336
  • RC12YC Spark Plug Replaces Old Briggs # 491055s, 491055, 805015, 72347GS , 72347, Compatible with RC12YC, BCPR6ES, Torch KR5TC
  • Replaces Kohler 12 132 02, 12 132 02-S, 12 132 01-S, 25 132 12-A, 25 132 12-S, 24 132 01-S ; Replaces MTD 759-3336
  • Replaces 21525900, 08811700, 21536800, 21534100, 21531100, 21537800; Replaces Gravely 21531100, 21534100, 21536800; Replaces Husquvrana 531308128
  • We have been improved by one level on the basis of the above, the copper core central electrode is opened in U-shaped groove with resistance, the Plating has superior anti-corrosion and anti-seizing properties
  • Compatible with Kohler Engine CH11S CH11 CH12.4 CH13S CH13ST CH13T CH13PS CH13PT CH14 CH14S CH15GS CH20
SaleBestseller No. 9
Briggs and Stratton 796112 Pack of 12 Spark Plugs (RJ19LM)
  • Pack of 12
  • Genuine OEM Briggs and Stratton parts
  • Please note: Consult owner's manual for proper part number identification and proper installation
Bestseller No. 10
BQBS 10 Packs 796112 Spark Plug Fit for RJ19LM RJ17LM RCJ8 J19LM J17LM CJ8 293918 8681 796112S 492167 492167S 802592 802592S 293918 391818 392588 394539 394812 493944 29693
  • Fit models: 796112S 796112 RJ19LM J19LM RJ17LM J17LM RCJ8 CJ8 293918 8681
  • Fit BS 492167 492167S 802592 802592S 293918 391818 392588 394539 394812 493944 29693 5095H 5095D
  • Fit Most L-Head Engines Including 475, 500, 600, 625, 650 & 675 Series Engine; 4VB25, 4VB26, G2757273 and all L head BriggsS Engines
  • Fit Previous Classic, Sprint, Quattro & Quantum Series 3HP - 23HP BriggsS Engines
  • Fit Craftsman, Husq, JDeere, MTD, Poulan, Poulan Pro, Snapper, Toro & Many Others Engines

Last update on 2023-03-21 / Affiliate links / Images from Amazon Product Advertising API

How to find the best spark plug for lawn mower?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best spark plug for lawn mower for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good spark plug for lawn mower recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the spark plug for lawn mower need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for spark plug for lawn mower to find what you’re looking for:


In some cases, the brand of spark plug for lawn mower is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given spark plug for lawn mower are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about spark plug for lawn mower are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare spark plug for lawn mower quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best spark plug for lawn mower can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.