CAT 279D Sprocket | Part #304-1916

This drive sprocket is listed for the Cat 279D and matches OEM Part #304-1916. Before ordering, compare your machine make, model, serial number, and existing part number to confirm the correct undercarriage position and fitment.

Matching bottom roller or track roller options for the Cat 279D include <a href="/products/cat-279d-track-roller">CAT 279D Track Roller | Part #304-1890</a>. 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 Cat 279D include <a href="/products/cat-279d-front-idler">CAT 279D Front Idler | Part #304-1878</a>. Front idlers guide the track and help maintain proper tension, so inspect the flange, bearing condition, and wear surface before installing new tracks.

Matching rear idler options for the Cat 279D include <a href="/products/cat-279d-rear-idler">CAT 279D Rear Idler | Part #304-1894</a>. A worn rear idler can contribute to poor track alignment, derailment, and premature edge wear, especially after new rubber tracks are installed.

Matching rubber track options connected to this Cat 279D undercarriage setup include <a href="/products/cat-279d-rubber-tracks">CAT 279D3 Rubber Tracks | 450x86x56 (Part #450X86BX56)</a>. If you are replacing this part, inspect the full undercarriage so the new component and rubber tracks wear evenly together.

Yes. Sprockets, idlers, rollers, and rubber tracks wear together as a system. Before replacing this part for the Cat 279D, 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 <a href="/pages/rubber-track-finder">TrackTECH Track Finder</a> or call <a href="tel:8508167898">(850) 816-7898</a> 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 <a href="/pages/shipping">TrackTECH shipping information</a> or contact us before ordering if you need priority freight options.