OEM Part Number: 603988
Product Name: Pulley, Drive – Deck Spindles
Condition: New
Brand: Hustler

This listing is for a new, genuine OEM Hustler drive pulley, designed for deck spindle drive systems on Hustler Raptor and Raptor Limited zero-turn mowers.

The Hustler 603988 pulley is a critical deck component that transfers belt power to the spindle assemblies, ensuring smooth blade rotation, proper belt alignment, and consistent cutting performance. Using a genuine OEM Hustler pulley helps prevent premature belt wear, vibration, and spindle damage commonly caused by aftermarket pulleys.

Key Product Details

• Condition: New

• Brand: Hustler

• OEM Part Number: 603988

• Product Type: Deck Drive Pulley

• Application: Spindle drive pulley on mower deck

• Genuine Hustler OEM part, not aftermarket

Product Features

• Manufactured to Hustler OEM specifications

• Precision-machined for correct belt alignment

• Ensures smooth power transfer to deck spindles

• Durable construction for commercial and residential use

• Helps reduce belt slip and premature wear

Compatible Models and Fitment

Organized by product family, then 9-digit model number, followed by the full model code as required for accurate identification.

Hustler Raptor / Raptor Limited / Raptor EX

52-Inch Deck Models

• 934513US – HTRTRS052KOHKT735U

• 934794 – HTRTRS052KOHKT735M

• 934802 – HTRTLS052KOHKT735M

• 935759 – HTRTRS052KOHKT735A

• 935817 – HTRTRS052KOHKT735M

• 936492 – HTRTLS052KAWFR691VA

• 936500 – HTRTLS052KAWFR691VM

• 937755 – HTRTRS052KOHKT735A

• 937763 – HTRTRS052KAWFR691VA

• 937771 – HTRTLS052KAWFR691VA

• 937813 – HTRTRS052BASPROM44U7M

• 937854 – HTRTRS052KAWFR691VM

• 937862 – HTRTLS052KAWFR691VM

• 938597 – HTRTRL052KOHKT735A

• 938605 – HTRTRL052KAWFR691VA

• 938613 – HTRTLL052KAWFR691VA

• 939116EX – HTRTRL052KAWFR691VE

• 939165 – HTRTRL052BASPROM44U7M

• 939223 – HTRTRL052KAWFR691VM

Fitment Note

This pulley is used on 52-inch Hustler Raptor, Raptor Limited, and Raptor EX mower decks.
Always verify your model number and serial number before ordering to ensure correct compatibility.

Why Choose Genuine Hustler OEM Parts

Hustler OEM pulleys are engineered to exact tolerances for correct belt tracking and deck performance. Using genuine parts helps extend belt life, maintain cutting quality, and protect spindle bearings from excessive load.

Ideal Applications

• Replacing worn or damaged deck drive pulleys

• Resolving belt slippage or vibration issues

• Deck maintenance and spindle system repairs