Spindle Pulley for John Deere 42 Inch 54 Inch Deck S240 190C D170 G110 GX21381

Product Overview

This John Deere spindle pulley is a direct replacement for select riding mower decks, ensuring efficient blade drive and smooth operation. Designed for 42-inch and 54-inch John Deere decks, it fits models including the S240, 190C, D170, and G110. The pulley transfers belt power from the engine to the blades, making it essential for reliable cutting performance.

Key Features & Performance

• Precision-engineered to match OEM specifications for GX21381
• Rust-resistant finish for long service life in outdoor conditions
• Compatible with both 42-inch and 54-inch John Deere decks
• Reinforced steel construction withstands heavy-duty mowing
• Easy bolt-on installation with no modifications needed

Fitment & Compatibility

• John Deere S240
• John Deere 190C
• John Deere D170
• John Deere G110
• John Deere 42-inch and 54-inch mower decks

Common Uses

• Replacing worn or broken spindle pulleys on residential and commercial zero-turn mowers
• Restoring belt alignment and blade speed on John Deere lawn tractors
• Maintaining cutting performance during peak mowing season

Technical Specifications

• Part Number(s): GX21381
• Material: Steel
• Deck Size Compatibility: 42 inch, 54 inch

Frequently Asked Questions

Q: Will this spindle pulley fit my John Deere D170 with a 48-inch deck? A: This pulley is designed for 42-inch and 54-inch decks only; 48-inch decks use a different pulley assembly.

Q: Do I need to replace the belt at the same time? A: It is recommended to inspect the belt for wear and replace if frayed or stretched to ensure proper fit and performance.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.