Lawn Mower Blades Toothed Mulching with 38 inch Decks Fits for 127842 134148 138497 Replacement for Husqvarna LT1238 LT1538 LT19538 LTH1438 LTH1538 LTH18538 LTH2038R, 2 PCS

What It Is

This is a set of two toothed mulching blades designed for 38-inch cutting decks on select Husqvarna lawn tractors. They replace OEM part numbers 127842, 134148, and 138497, and are intended for mulching grass clippings into fine particles to return nutrients to the lawn.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 38 inches wide—measure diagonally across the blade path if unsure. These blades fit Husqvarna models LT1238, LT1538, LT19538, LTH1438, LTH1538, LTH18538, and LTH2038R. They are aftermarket replacements for the listed OEM parts, so cross-check your current blade’s part number or measure the center hole diameter (must be 7/8-inch) and overall length (should be 18.5 inches). Not compatible with 42-inch or larger decks, non-Husqvarna brands, or standard lift blades.

Key Things to Know

• Mulching vs. bagging: These toothed blades are optimized for mulching; they will not throw clippings into a bagger as efficiently as standard blades.
• Installation: Requires a torque wrench—tighten the center bolt to 70–90 ft-lbs. Use thread locker or anti-seize, and ensure the blade is oriented with the cutting edge facing the direction of rotation.
• Balance check: Always balance the blades after mounting (use a blade balancer or nail in a wall). Unbalanced blades cause vibration, poor cut quality, and bearing wear.
• Sharpening: Can be sharpened once or twice, but the toothed edge is harder to maintain than a straight edge. Replace if nicked or bent.

Should You Buy It

Buy these if you have one of the listed Husqvarna 38-inch tractors, primarily mulch your lawn, and want a direct-fit replacement at a lower price than OEM. They’re fine for average residential use but not ideal if you frequently bag or need a heavy-duty blade for tough conditions.