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Your cart is empty.Iridium Xtreme Start Spark Plugs are engineered with an iridium-enhanced fine wire electrode to last twice as long and provide better fuel efficiency than copper plugs. With coverage for more than 95% of popular lawn and garden equipment, you’ll get quicker, more consistent starts with no need for plug changes. From lawn mowers to chain saws, Autolite Iridium Xtreme Start Spark Plugs provide quicker consistent starts versus the average plug and an anti-foul design. The 0.6-millimeter iridium-enhanced fine-wire design offers exceptional fouling resistance, providing reliable starting in any season or weather condition. Iridium Xtreme Start plugs have up to 26 percent quicker engine starts than leading standard plugs, for less battery and starter wear as well as less pull-cord effort required. They also have up to 21 percent less HC emissions than a standard plug, for better fuel efficiency and horsepower. These plugs are specifically designed for each application to meet or exceed OE quality and performance.
Mac n Me Fan
Reviewed in the United States on January 28, 2025
Got my push mower going again. Has lasted all summer and is going strong.
Yankeeman 56
Reviewed in the United States on July 24, 2024
Works great
Tammie Tyson
Reviewed in the United States on June 21, 2024
Did not have to set gap straight in
Customer
Reviewed in the United States on May 25, 2024
I have an old Yardman mower I bought used 5 years ago. Its been used hard- very long grass branches being run over etc. i just replaced the blade and the spark plug. It runs now. I couldnt believe it.
Rocky
Reviewed in Canada on May 2, 2024
It was amazing how much better equipment started and operated after installing these.
signmoney
Reviewed in the United States on March 23, 2024
I put it in my Stihl leaf blower and it now starts on first or second pull. Got it see if one will fit my chainsaws. One of the best buys I have made here
B. C.
Reviewed in the United States on November 25, 2024
I use only Iridium plugs in all my chain saws, blowers, chippers, generators, cars, trucks, motorcycles, and boat engines because they really help start ignition anytime conditions are marginal. Old gas sitting in the carburetor, damp, or cold conditions make starting a pain but Iridium plugs seem to make starting possible, particularly for smaller or 2S engines.
Vincent Pitre
Reviewed in Canada on November 25, 2021
J’ai acheté pour ma souffleuse à neige de marque cubcadet et elle démarre très bien.
Mr. Green Thumb
Reviewed in the United States on May 18, 2014
I've been searching all over and as of today May 17th, 2014, Autolite is the only company that makes Iridium plug for small gas engines. I bought this over a month ago to replace the Champion 5861 in my Toro 6.5HP Personal Pace mulching lawnmower. I've used it twice since then. It runs alot smoother and quieter, or shall I say, not as loud, and the gas lever on the push handle feels lighter. The mower also feels lighter when I push it. It seems like with the extra power, the self-propel mechanism doesn't bog down the engine as much. This is the perfect companion to 20oz of full synthetic valvoline 10w30 motor oil in the mower. I also use Shell 93 octane Super Unleaded gasoline. I let my grass grow to about 12" and with more power, it doesn't bog down as much. This plug model is quite standard and it also replaces J19LM, NGKB4LM, Denso W14LMU. Ditch those copper plugs. They cost more in the local stores than this high tech Iridium plug on Amazon.I took the liberty of copying cross reference numbers from Autolite's website for your convenient:AC-Delco LM46B, S46Beru 14-9 EUOBosch 7538, 7801, 7803, W12E, W9EC0, WR11E0Chanpion 5861, 841, 845, 856, 861, 861EZ, 868, 947, 947, 973,L17LM, L19LM, J7, J7J, J7JM, J8, J8C, J8J, J8JM, QJ19LM, RJ17LM, RJ19HX, RJ19LM, RJ19LM4Denso 6008, 6014, 6033, 6035, 6072, W14, W14LMR-US, W14LM-U, W14LM-US, W14-U, W14-USE3 E3.10Massey-Ferguson 834225-MIMotorcraft A11, A11LM, A11NX, A11X, A7CLM, A7CX, A7LM, A7X, AT10Napa X507NGK 1147, 3110, 3410, 3841, 4133, 4146, 4861, 4864, 5798, 6150, 741, 7931, B2, B2LM, B2LMY, B4LM, B4LMS25, B4LMY, BR2LM, BR4LM, CS1, CS4Prestolite 14-11, 14-7XSears STD361458Splitfire SF45FTecumseh A105-2, A105-33Torch GL4Valley Forge 118
Walt in Pittsburgh
Reviewed in the United States on June 21, 2011
The description on this item a couple of weeks ago included "Pack of 10." Now it says "One Per Card." Amazon shipped me 1 spark plug even though all my correspondence had the Pack of 10 description including the packing slip. The Autolite catalog number is the one for a pack of 10, not a single plug. Amazon agrees with me and has placed another free order. I should receive it in the next few days, but I strongly suspect their fulfillment center will again ship one plug. I will update this review when I receive the next order. The price for 1 plug is ridiculous, and the price for 10 is great.Updated June 22, 2011As expected, the second order from Amazon also included one spark plug. Another complaint/email was sent to Amazon. I now have 2 plugs when 10 were expected. Amazon is being very cooperative so far. I am awaiting a response to my latest email to them. I always have the ability to refuse the charge to my credit card until this is resolved, but I am being patient for now. My billing cycle has a ways to go!Final Comment:Amazon is unable to process this order as originally submitted. They are refunding the full amount without charge for the 2 spark plugs shipped. I am fine with this. I understand their predicament. Keep in mind, the current Amazon description will get you 1 spark plug at the stated price. This is at least 100% higher that the average price on the internet for 1 plug.
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