164090 Idler Flat Pulley for King Kutter RFM Series 4 5 6 ft Lawn Tractor

This Idler Flat Pulley is a replacement idler pulley compatible with King Kutter RFM Series finish mowers and matches OEM Part# 164090.

Product Overview

The Idler Flat Pulley serves as a belt tensioner and guide for the mower deck drive system, maintaining proper belt alignment and tension during operation. Designed for King Kutter RFM Series models, this idler flat pulley ensures smooth power transmission from the PTO to the blades. This heavy-duty idler flat pulley restores reliable cutting performance for 4-foot, 5-foot, and 6-foot rotary cutters.

Key Features & Performance

• Flat idler pulley design maintains consistent belt contact and reduces slippage
• Heavy-gauge steel construction resists bending and wear under high-tension loads
• Pre-lubricated sealed ball bearing extends service life and minimizes friction
• Precisely matched to OEM Part# 164090 for exact fit on King Kutter RFM Series decks
• Grooved rim profile ensures proper belt tracking and alignment
• Zinc-plated finish provides corrosion resistance in outdoor conditions

Fitment & Compatibility

• King Kutter RFM Series 48" (4') Finish Mower
• King Kutter RFM Series 60" (5') Finish Mower
• King Kutter RFM Series 72" (6') Finish Mower

Common Uses

• Replacing a worn or seized idler pulley on King Kutter RFM Series mower decks
• Restoring proper belt tension to prevent slippage and overheating
• Maintaining smooth blade engagement on 4', 5', or 6' rotary cutters
• Preventative maintenance when replacing drive belts
• Fleet and commercial mower repair to reduce downtime

Technical Specifications

• Part Number(s): 164090
• Type: Flat Idler Pulley
• Material: Steel

Frequently Asked Questions

Q: Will this idler pulley fit a King Kutter 5-foot finish mower? A: Yes, this pulley is designed for King Kutter RFM Series mowers including the 60" (5') deck model. Always verify your original part number 164090 before ordering.

Q: Does this pulley include the mounting bolt? A: No, the pulley is sold as the wheel assembly only; mounting hardware must be reused from the original or purchased separately.

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