Description:

Non-Genuine John Deere Flat Idler Pulley with Flange – Steel Construction.

Designed for selected John Deere S100–S130 Series lawn tractors and compatible Sabre and Scotts models.

Heavy-duty steel pulley with integrated flange ensures accurate belt guidance, smooth operation, and long service life.

Precision-manufactured to match OEM standards for fit and performance — ideal for restoring deck efficiency and reliability.

Direct replacement for John Deere OEM GY20110 pulley.

Replaces OEM:

John Deere: GY20110

Pulley Dimensions:
Specification Imperial Metric (mm)
Pulley Diameter (A) 5 1/4″ 133 mm
Flange Diameter (B) 4 1/2″ 114 mm
Centre Hole / Bore (C) 11/16″ 17 mm
Pulley Height (D) 1″ 25.4 mm
Centre Hole Type Round —
Material Heavy-Duty Steel —
Fits Models:
John Deere Lawn Tractors

S100 – S130 Series – 42″ and 48″ cut decks

Sabre Models

14542GS

1642HS

1742HS

1754HS

Scotts Models

L1742

L17542

L2048

L2548

Features:

Heavy-duty steel construction with integrated flange for enhanced stability.

Precision-balanced to reduce belt wear and vibration.

Designed to match OEM fit and performance standards.

Corrosion-resistant finish for long-term outdoor use.

Ideal replacement pulley for John Deere 42″ and 48″ mower decks.

Specifications Summary:
Property Detail
Fits Brand John Deere
Pulley Type Flat Idler with Flange
Material Steel
Diameter 5-1/4″ (133 mm)
Centre Hole 11/16″ (17 mm)
Height 1″ (25.4 mm)
Standard Pack Quantity 1