EXCAVATOR UNDERCARRIAGE & WEAR PARTS

CAT 239D tracks are listed in two sizes, 320 x 86 x 49B and 400 x 86 x 49B: 320 mm (12.6 in) or 400 mm (15.7 in) wide, with an 86 mm pitch and 49 links, in C-lug or Z-lug tread. How to measure them, confirm the fit and check the sprockets and undercarriage.

John Deere 317G tracks are listed in two sizes, 320 x 86 x 50B and 400 x 86 x 50B: 320 mm (12.6 in) or 400 mm (15.7 in) wide, with an 86 mm pitch and 50 links. How to measure them, confirm the fit and check the undercarriage parts around them.

The Kubota SVL65-2 is listed with two track sizes, 320 x 86 x 52B and 400 x 86 x 52B (86 mm pitch, 52 links), in a C-lug or Z-lug tread, and the SVL65-2C track is listed at 400 x 86 x 52B. This guide covers how to confirm the fit, the signs of wear and the SVL65-2 sprockets and bottom rollers to check.