Hustler Flat Steel Idler Pulley – Suits Selected Dash & Raptor Models – Replaces 126123 / 604219 / 607480

Description:

Non-Genuine BigDog & Hustler Flat Steel Idler Pulley designed for a range of Dash, Dash XD, Raptor, and Raptor XD zero-turn mower decks.

Engineered for precision belt tracking, reduced vibration, and long-lasting durability in demanding mowing conditions.

Replaces OEM part numbers 126123, 604219, and 607480 — suitable for multiple deck sizes from 34” up to 54”.

Replaces OEM:

BigDog: 126123, 604219, 607480

Hustler: 126123, 604219, 607480

Pulley Dimensions:
Specification Imperial Metric (mm)
Outside Diameter (A) 4.877″ 123.90
Flange Diameter (B) 3.937″ 100.00
Centre Hole / Bore (C) 1/2″ 12.70
Pulley Height (D) 1.089″ 27.67
Hub Height (E) 0.767″ 19.50
Material Thickness (T) 0.078″ 2.00
Centre Hole Type Round —
Deck Compatibility:
Deck Size (inches) Deck Size (cm) Deck Size (mm)
34″, 36″, 42″, 48″, 52″, 54″ 86.3 – 137.2 cm 863 – 1372 mm
Fits Models:
BigDog Zero Turn Models:

42″ (1067 mm) cut Alpha – Models: 932897EX (2013), 933416EX (2013–2015), 934489EX (2016–2017), 939140EX (2018)

48″ (1220 mm) cut Alpha MP – Model: 936526EX (2016)

52″ (1320 mm) cut Alpha – Models: 932913EX (2015), 939124EX (2018)

Hustler Zero Turn Models:

34″ (863 mm) Dash XD – Model: 940742EX (2020–2021)

36″ (915 mm) Raptor SD – Models: 935262EX (2016), 938365EX (2018–2020)

42″ (1067 mm) Dash XD – Model: 940759EX (2020)

Raptor / Raptor SD / X / XD – Models: 933465EX, 934679EX, 935270EX, 938332EX, 939819EX (2014–2021)

48″ (1220 mm) Dash XD / Raptor Flip-Up / SD / XD – Models: 932566EX, 935288EX, 936542EX, 938399EX, 940510EX (2014–2021)

52″ (1320 mm) Raptor – Model: 931899EX (2015)

54″ (1372 mm) Raptor X / XD – Models: 940502EX (2020), 939751EX (2020)

Features:

High-strength steel construction for long-lasting durability.

Precision-machined hub and bore to ensure smooth, quiet operation.

Designed to maintain accurate belt alignment and minimize vibration.

Suitable for a wide range of Hustler Dash and Raptor series ZTR mowers.

Easy bolt-on replacement for worn or damaged OEM pulleys.

Specifications Summary:
Property Detail
Material Heavy-Duty Steel
Finish Corrosion-Resistant
Centre Hole 1/2″ (12.7 mm) Round
Pulley Height 1.089″ (27.67 mm)
Outside Diameter 4.877″ (123.9 mm)
Standard Pack Quantity 1

GA SPARES

PUL8621