Bobcat T66

Browse aftermarket replacement parts for the Bobcat T66 compact track loader. The T66 is the mid-frame model in the current R-Series CTL lineup, sharing the redesigned R-Series cab and control platform with its R-Series siblings.

Use filters or search by OEM part number to find the right part. Compatibility details are listed on each product page.

Parts Compatible with the Bobcat T66 Compact Track Loader

The Bobcat T66 sits in the mid-frame size class of the current R-Series compact track loader lineup, alongside the larger T76 and T86. R-Series machines use a redesigned cab platform with new front door glass, updated door seals, and revised control geometry that is different from the M-Series T630, T650, and T740 they replaced. The T66 shares most cab and electrical components with the rest of the R-Series, both track and wheeled, so a part that fits a T76 or an S66 will typically fit the T66.

When ordering parts, verify your serial number on the product page. Some service items such as track tensioners and undercarriage parts are size-class specific even within the R-Series.

Common Replacement Parts for the Bobcat T66

The ignition and door key (6693241) is the most-ordered T66 part in our catalog and is a universal fit across most Bobcat equipment built after 2006. The detent ball (6592105) and grease fittings (10H25 and 7311865) are routine service items that move steadily across the R-Series. The front door glass (7435779) is the R-Series cab door glass and is shared with every other R-Series machine including the T76, T86, S66, and S76.

The compression springs (6578253 and 7221255) and relay (6679820) are common cab and electrical replacements. Most T66 service work overlaps with the rest of the R-Series fleet, which is why we group parts by R-Series cab family rather than by individual model where the same component fits multiple machines.