SunBelt XHT Mower Blade for LM1160 Deck

SunBelt XHT Mower Blade for LM1160 Mower Deck

(Aftermarket Blade to replace LS Tractor 40378726)

The KU1038 SunBelt XHT Mower Blade is a high-durability aftermarket replacement blade designed for LM1160 mower decks, delivering long wear life and dependable cutting performance. Built with SunBelt’s XHT (Xtreme Hardness & Toughness) steel blend and advanced heat treatment, this blade is 25%–40% harder than standard mower blades, making it more impact resistant and longer lasting—because changing blades mid-season is nobody’s idea of fun.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: KU1038
• Brand: SunBelt
• Blade Series: XHT (Xtreme Hardness & Toughness)
• Product Type: Mower blade (aftermarket replacement)
• Deck Compatibility: LM1160 mower deck
• Cut Width Requirement: (3) blades required for 60 in cut
• Blade Length: 20.56 in
• Blade Width: 2-1/2 in
• Blade Thickness: 0.250 in
• Lift Type: Medium lift
• Center Hole Diameter: 7/8 in
• Material / Treatment: XHT steel blend, heat treated for increased hardness and toughness
• Replaces:
  • Kubota: K5371-99040
  • LS: 40378726
  • Aftermarket: 40378726

Ideal For

• Replacing worn blades on LM1160 mower decks
• Operators wanting longer blade life and improved impact resistance
• Mowing conditions with debris where blade durability matters
• Maintaining a clean, consistent cut across a 60" deck
• Anyone who prefers blades that outlast the season instead of auditioning for replacement early