Technical Dimensions
| Part # | 304-1870 |
|---|---|
| Tooth Count | 15 |
| Bolt Hole Count | 12 |
| Auxiliary Holes | |
| Outside Diameter | |
| Inside Diameter | |
| Dish Depth | |
| Flange Diameter | |
| Drive Configuration | |
| Mount Configuration | |
| Stamped Part # | |
| Pitch | |
| Weight | 36.52 lbs |
CAT 239D Sprocket | Part #304-1870
Regular Price
$280.00
x 1
PRODUCT SPECIFICATIONS
Construction & Features
| Durability | Heavy duty only |
|---|---|
| Fitment | OEM-reference match |
| Construction | Drop forged steel |
| Finish | Heat-treated hardening |
Frequently Asked Questions
Fitment, availability, fulfillment, and support for this product
What drive sprocket fits the Cat 239D?
This drive sprocket is listed for the Cat 239D and matches OEM Part #304-1870. Before ordering, compare your machine make, model, serial number, and existing part number to confirm the correct undercarriage position and fitment.
What bottom rollers fit the Cat 239D?
Matching bottom roller or track roller options for the Cat 239D include CAT 239D Track Roller | Part #420-9801. Replacing worn rollers before installing new rubber tracks helps keep the undercarriage aligned and reduces uneven wear across the track carcass.
What front idler fits the Cat 239D?
Matching front idler options for the Cat 239D include CAT 239D Front Idler | Part #420-9803. Front idlers guide the track and help maintain proper tension, so inspect the flange, bearing condition, and wear surface before installing new tracks.
What rubber tracks pair with this drive sprockets?
Matching rubber track options connected to this Cat 239D undercarriage setup include CAT 239D Rubber Tracks (Part #320X86BX49). If you are replacing this part, inspect the full undercarriage so the new component and rubber tracks wear evenly together.
Should I inspect the full undercarriage before replacing this Cat 239D part?
Yes. Sprockets, idlers, rollers, and rubber tracks wear together as a system. Before replacing this part for the Cat 239D, inspect the full undercarriage for uneven wear, bearing play, hooked sprocket teeth, and track tension issues.
How do I confirm this product fits the Cat 239D?
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.
How fast does TrackTECH ship Cat 239D parts?
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.
What machines is this sprocket listed for?
Current compatible equipment listed in the TrackTECH catalog includes CAT 239D.
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