This is a replacement air filter/AC cartridge for your small engine. The air filter prevents dirt and debris from entering the engine. Over time, the air filter can become clogged or damaged, and this can lead to reduced performance. This air filter is approximately 4 inches wide and approximately 5 inches long. To replace the air filter, locate the air filter cover on the side of the engine, unscrew it, and remove the old filter. Be sure to clear out any dirt, clippings, or other debris that has found its way into the air filter assembly before you insert the new filter. Reattach the air filter cover, and secure it with the screws. This product is sold individually.
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Troubleshooting
This part fixes the following symptoms:
Will Not Start
This part works with the following products:
Engine, Lawn Mower, Pressure Washer, Generator.
This part works with the following products:
Briggs and Stratton, Toro, Lawn Boy, Simplicity.
Part# 491588S replaces these:
491588S
Questions and Answers
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Jack
March 15, 2022
Will part no. 491588S air filter work for model 123K02-0193-E1 B&S engine
For model number 123K02-0193-E1
Hello Jack, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is PartSelect Number PS8987387. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing installation instruction that matched.
Mower was submerged in Hurricane Matthew
Total disassemble, clean out water and any rust. hone cylinder, wire brush where needed,reassemble with new rings,gaskets and seals and lucas oil product. Started on second pull. Mowed lawn. If you have never done this sort of work before, probably should not attempt.
replaced gasket that go's between the air cleaner housing and carb. cleaned housing and reinstalled with new air filter
Also replaced fuel tank , the built in fuel shut off started leaking , had to replace the tank. Ordered a new one Briggs & Stratton original equipment fit perfect . This is a 25 year old Briggs & Stratton lawn mower 3.5 HP, Runs perfect, starts by the 2nd crank every time. First time I ever had to spend money on it since I bought it new in 1991
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★★★★★
★★★★★
Leslie P - October 7, 2019
Verified Purchase
Sticker covered the part
Part is fine but my issue is they put a sticker covering the entire back of the filter with their part number. I couldn't get that sticker off so I do wonder if it is impairing the filter as it is covering the holes. Kind of stupid that they did that.
★★★★★
★★★★★
Johnnie E M - February 25, 2019
Verified Purchase
Right one
It was the part that my motor needed !! Thank You !!
★★★★★
★★★★★
Kathleen W - May 29, 2018
Verified Purchase
The part didn't fit the lawnmower
Even though we looked it up for the make and model of the lawnmower, this air filter didn't fit!
★★★★★
★★★★★
Daniel G - January 31, 2018
Verified Purchase
Troy Bilt Mower Parts
Items were exactly as described and arrived in a timely fashion.
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