Caterpillar 255 Rear Idler - 420-9805

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$304.49 $333.99 Save $29.50
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Product introduction

NRP 420-9805 rear idler for Caterpillar 255 compact track loader parts selection. Sold as an individual idler.

Position and function

Guides the track at the rear of the undercarriage and supports track alignment during travel, turning and loading within the machine track-tensioning arrangement.

Reference and sales unit

Reference 420-9805. Sold as an individual idler.

Compatibility and fitment

  • Caterpillar 255: Only the documented single-flange rear-idler configuration matching 420-9805 is supported for Caterpillar 255. Confirm the existing part number, flange profile and mounting; other idler configurations must be checked separately. The supplier flags three idler options for these models.
About Our Brand

Built with Purpose

At NRP, we don’t just sell parts, we build trust. Every product we offer is backed by years of hands-on experience, careful sourcing, and a commitment to quality that keeps your machines running longer and smoother.

We stand behind everything we sell with a 12-month warranty no gimmicks, no fine print. If it doesn't hold up, we make it right.

Whether you're in the field or in the shop, our team is here to support you with reliable parts and real-world knowledge. It's not just what we do, it's who we are.

Compatible With Leading Equipment Brands

Our premium replacement undercarriage parts and rubber tracks are engineered to fit a wide range of construction equipment. We offer reliable, high-performance solutions compatible with the following major brands:

ASV, Bobcat, Boxer, Caterpillar, Daewoo, Ditch Witch, GEHL, Hanix, Hitachi, IHI, JCB, John Deere, Kobelco, Komatsu, Kubota, Morooka, Mustang, New Holland, Nissan, Schaeff, Sumitomo, Takeuchi, Terex, Vermeer, Volvo, Yanmar

*All brand names are used for compatibility and identification purposes only. We are not affiliated with or endorsed by any of the manufacturers listed.