One New Aftermarket Replacement Mower Deck Rebuild Kit – Blade, Spindle & Belt Combo for John Deere (JD) 425, 445 & 455 Lawn & Garden Tractors – 54″ Deck
This all-in-one mower deck rebuild kit restores the cutting and drive systems on John Deere 54-inch mid-mount mower decks. The kit bundles a primary drive belt, a secondary deck drive belt, large and small flat idler pulleys, three medium-lift mower blades, and three spindle assemblies – everything needed to rebuild a worn 54″ deck back to like-new performance in a single order.
Kit Includes
- (1) Primary Drive Belt – Length: 64.5″, Width: 0.559″, Thickness: 0.536″, Type: Double Cog, Material: Polyester Cord
- (1) Secondary Deck Drive Belt – Length: 120″, Width: 5/8″, Thickness: 0.364″, Type: Wrapped, Material: Aramid Cord
- (1) Large Flat Idler Pulley – O.D.: 5-3/8″, I.D.: 21/32″, Width: 1″
- (1) Small Flat Idler Pulley – O.D.: 4-5/8″, I.D.: 11/16″, Width: 1″
- (3) Mower Blades – Length: 18-5/8″, Width: 2-1/2″, Thickness: 0.197″, Type: Medium Lift, Center Hole: 13/16″ (3 blades required for 54″ cut)
- (3) Spindle Assemblies – Height: 4-1/2″, Pulley O.D.: 6″ (fits 48″ and 54″ decks)
Compatible Models
John Deere (JD) Lawn & Garden Tractors – 54″ Deck: 325, 335, 345, 355D, 425, 445, 455
John Deere GT Series: GT225, GT235, GT235E, GT245
John Deere GX Series: GX255, GX325, GX335, GX345, GX355
John Deere LX Series: LX255, LX266, LX277, LX279, LX280, LX288, LX289
Replaces Part Number(s):
M143019, M118684, M144677, GX21216, M118685, AM106627, AM121602, AUC16698, AM107468, AM35862, AM37249, AM37442, GY20569, M111523, M113518, M114582, M115329, M115496, M135590, M76467, AM115528, AM115720, AM116065, AM121229, AM121342
New aftermarket replacement part – not remanufactured, not used.






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