Komatsu PC50MR-2 Carrier Roller | Part #9239529

This top roller is listed for the Komatsu PC50MR-2 and matches OEM Part #9239529. Before ordering, compare your machine make, model, serial number, and existing part number to confirm the correct undercarriage position and fitment.

Matching drive sprocket options for the Komatsu PC50MR-2 include Komatsu PC50MR-2 Sprocket | Part #2054978. When installing new rubber tracks, inspect sprockets for hooked, sharp, or uneven teeth because worn sprockets can shorten track life and damage the drive lugs.

Matching bottom roller or track roller options for the Komatsu PC50MR-2 include Komatsu PC50MR-2 Track Roller | Part #9239528. Replacing worn rollers before installing new rubber tracks helps keep the undercarriage aligned and reduces uneven wear across the track carcass.

Matching front idler options for the Komatsu PC50MR-2 include Komatsu PC50MR-2 Front Idler | Part #9237507. Front idlers guide the track and help maintain proper tension, so inspect the flange, bearing condition, and wear surface before installing new tracks.

Yes. Sprockets, idlers, rollers, and rubber tracks wear together as a system. Before replacing this part for the Komatsu PC50MR-2, inspect the full undercarriage for uneven wear, bearing play, hooked sprocket teeth, and track tension issues.

Confirm fitment by checking your machine make, model, serial number, and existing track size or OEM part number. For rubber tracks, verify width, pitch, and link count. For undercarriage parts, compare the part number, bolt pattern, tooth count, and machine position. You can also use the TrackTECH Track Finder or call (850) 816-7898 before ordering.

TrackTECH ships rubber tracks and undercarriage parts quickly across the Lower 48. Heavy items typically ship by freight, while smaller undercarriage parts may ship by parcel depending on warehouse availability. Review TrackTECH shipping information or contact us before ordering if you need priority freight options.

Check the size stamp molded into your existing track (format: Width x Pitch x Links, e.g., 450x86x60) or use our Track Finder tool to confirm the correct size for your your machine.

All your machine replacement rubber tracks include a 24-month warranty covering defects in materials and workmanship under normal operating conditions. This applies to contractor-grade use on properly maintained undercarriage systems.

Multiple tread patterns are available including C-Block (hard surfaces), Zig-Zag (all-terrain), and Multi-Bar (turf-friendly). Select based on your primary work environment.

Orders placed before 12 PM CT ship same day from our Georgia warehouse. Standard delivery is 1-3 business days nationwide. Tracks ship on pallets with free curbside delivery to commercial addresses.

Three ways to verify fitment: (1) Check the size stamp on your current track. (2) Use our Track Finder tool with your serial number. (3) Call (850) 816-7898 and we will confirm compatibility before you order.