laffoonparts 697153 795115 Air Filter Tune-up Kit Replacement for Brigs-Straton 14-17.5HP Engine Lawn Mower John Deere GY20573 LA115 LA105 LA110 LA100 L100 L105 L107 L108 Lawn Mower

What It Is

This is a 3-piece air filter tune-up kit (air filter, pre-cleaner, and spark plug) designed to replace the OEM service parts on Briggs & Stratton 14–17.5 HP single-cylinder engines commonly found in John Deere 100-series lawn tractors (L100, L105, L107, L108, LA100, LA105, LA110, LA115) and similar models like the GY20573.

Fitment & Compatibility

• Engine: Fits Briggs & Stratton 14–17.5 HP engines with model numbers 31C707, 31P777, 31R907, 31R977, 44N877, 44R877, and others using the 697153/795115 air filter and 491588 spark plug.
• Tractor models: John Deere LA105, LA110, LA115, L100, L105, L107, L108, GY20573, and some older LA series. Does not fit zero-turn mowers or 20+ HP engines.
• Check before buying: Verify your engine’s model number (stamped on the blower housing) and confirm the air filter measures ~5.5” x 4” x 2” (flat foam element). The spark plug gap is pre-set at 0.030”, but verify it matches your engine spec.
• OEM cross: Replaces Briggs & Stratton 697153, 795115, 491588, and John Deere GY20573, AM125424.

Key Things to Know

• Quality: User reviews report good fit and filtration comparable to OEM, though the foam pre-cleaner may feel slightly thinner than original.
• Installation: Very easy—swap the air filter and pre-cleaner, then replace the spark plug (use a socket and torque to 20 ft-lbs). No special tools needed.
• Gotcha: The spark plug is a standard J19LM, but some engines require a resistor plug (J19LM-R). If your engine has radio interference, buy a resistor plug separately.
• Value: At $15.99, it’s about half the cost of buying OEM parts individually, but you get a single spark plug—no extra.

Should You Buy It

If you own one of the listed John Deere 100-series tractors with a 14–17.5HP Briggs engine and want a budget-friendly, reliable tune-up kit for annual maintenance, this is a solid pick. It’s not for high-performance or commercial mowers, but for standard lawn cutting, it delivers good value and easy installation.