Order Includes: 12x Mower Deck Blade Compatible With John Deere: S220 200 Series Tractor 42", S240 Sport Lawn Tractor (880001 - ) 42", Lawn and Garden Tractor 42", X330, X350, X350R, X354, X370, X380, ZTrak Mower 42", Z315E, Z320R, Z335E, Z335M, Z345M, Z345R Part Numbers: M170642 Dimensions: Length: 21.42 in - 544 mm, Width: 2.76 in - 70.1 mm, Thickness: 0.20 in - 5 mm, Mounting Hole Diameter: 0.75 in - 19 mm We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced. Compatible with John Deere:
S220 200 Series Tractor 42"
S240 Sport Lawn Tractor (880001 - ) 42"
Lawn and Garden Tractor 42"
X330, X350, X350R, X354
X370, X380
ZTrak Mower 42"
Z315E, Z320R, Z335E
Z335M, Z345M, Z345R

Part Number:
Deck Blade: M170642

Dimensions:
Length: 543 mm - 21.4 in
Width: 67.3 mm - 2.64 in
Thickness: 5.3 mm - 0.2 in
Hole Diameter: 21.5 mm - 0․84 in
Type: Mulching Blade, Powder Coated
Material: Steel