If you are searching for reliable 434-1862 Cat idler roller, Cat 434-1862 guide roller, or aftermarket Caterpillar scraper undercarriage parts, this heavy-duty idler roller is one of the most searched wear parts for global construction equipment repair shops, rental fleet managers, machinery dealers and mini excavator part suppliers. Part number 434-1862 (also written as 4341862) is the original reference guide roller designed for Caterpillar wheel tractor scraper, widely used on earthmoving, road building, quarry and landfill projects.
Many mechanics and buyers look for 434-1862 replacement idler roller to fix scraper track misalignment, track wobble, abnormal track wear and premature failure of the push arm assembly. A damaged Cat idler roller will stop your machine and cause expensive downtime.
Our aftermarket 434-1862 guide roller is built to match OEM specs, direct bolt-on install, no modification required. We use alloy steel, precision machining and deep quenching heat treatment to get high surface hardness, strong impact resistance and long wear life. It adopts heavy floating seal system, anti-mud, anti-water, anti-leakage, perfect for wet, muddy, dusty job sites.
Fit Caterpillar Scraper Models
621E, 621F, 621H, 623H, 627E, 627F, 627H, 631G, 637G, 637K
It is a must-have spare part for Cat scraper maintenance and overhaul.
We are a factory supplier specialized in mini excavator undercarriage parts, compact track loader undercarriage parts and Cat heavy equipment wear parts. Except for 434-1862 Cat idler roller, we supply full range OEM aftermarket parts for Takeuchi, JCB, Case, Bobcat, Kubota, Yanmar, John Deere, XCMG mini excavators and CTLs:
carrier roller
idler wheel
drive sprocket
rubber track
track adjuster
We keep large stock of 434-1862 idler roller, support small order and mixed container loading. 12-month quality warranty, competitive factory price, fast delivery. If you need price, stock check or catalog for 434-1862 Cat idler roller, send inquiry now.
Post time: Nov-12-2026