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Butom
491588S Air Filter, Pre-Cleaner & Spark Plug Set

Push Mowers · Air filters

Butom 491588S Air Filter, Pre-Cleaner & Spark Plug Set

4.7 out of 5 · 991 reviews

A one-mower tune-up: flat filter, foam pre-cleaner and a fresh plug.

$7.99at last check, Sep 27, 2026

Fits

  • Quantum 3.5–6.5 HP
  • 625e
  • 675ex
  • 725ex
  • Toro walk-behinds
  • Troy-Bilt walk-behinds
  • Craftsman push mowers

Replaces

  • 491588
  • 491588S
  • 399959
  • 4101
  • 493537
  • 271933

About this part

This is the small spring tune-up we would do on our own push mower: a new pleated filter, a foam pre-cleaner to catch the grass dust before it reaches the paper, and a new plug to go with them.

The filter's PU rubber edge squeezes into the air box and seals it, which matters on a mower that spends its life in a cloud of clippings. It fits the Quantum-style engines from 3.5 to 6.5 HP and the 625e to 725ex series.

  • Filter, pre-cleaner and plug in one set
  • Soft PU edge seals the air box
  • Fits Quantum and 625–725 series engines
  • Good for Toro, Troy-Bilt and Craftsman push mowers
In the box
  • Pleated air filter
  • Foam pre-cleaner
  • Spark plug
Specs
SealFlexible PU rubber edge
FiltrationRated 99% dust capture
Before you order

Compare the stamp on your old part with the “Replaces” list, and your engine code with “Fits”. If it still isn't clear, send a photo to the counter and we'll check it for you.

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