Overview
When the sprocket teeth wear down and the drum bore enlarges from heat and friction, it is time to replace the clutch drum and sprocket kit. This aftermarket kit matches original-equipment dimensions and material specs, providing a reliable fix at a lower cost than going through the dealer. Keeping this component in good shape extends the life of your chain and bar.
Key specifications
- Material: hardened steel
- Type: aftermarket replacement
Compatibility
Built to fit DeWalt DW734 DW735 DW735X and other models sharing the same drivetrain layout. Always confirm your specific model and year against the compatibility list, because sprocket dimensions can differ even between closely related saws.
Installation notes
Pull off the side cover and bar assembly. Use a piston stop to lock the crank, then remove the clutch mechanism. Swap the drum, sprocket, and bearing as a set for best results. Reassemble in reverse order, set chain tension so the chain lifts slightly off the bar underside, and run a short idle test to check for vibration or noise.
Common questions
Q: Will these 5140010-81 sprockets fit both the DeWalt DW734 and DW735X, or are they only for the DW735?
Yes, these sprockets are listed for the DeWalt DW734, DW735, and DW735X. Since the DW735X is the same planer platform as the DW735 with accessory differences, the sprocket fitment is the same for this part number.
Q: Does this 2-piece 5140010-81 set replace both chain sprockets in my DW735 thickness planer, or would I still need another matching sprocket?
This listing includes 2 sprockets, which is helpful if you’re replacing a worn pair at the same time. Before installation, compare the tooth count, bore, and overall size to your original 5140010-81 parts and inspect the chain for stretching, since a worn chain can shorten the life of new sprockets.
Q: Any installation tips when replacing the 5140010-81 sprockets on a DeWalt DW734 or DW735?
Unplug the planer first, then remove the side cover so you can access the chain drive and note the original sprocket orientation before disassembly. It’s a good idea to clean out packed dust, check chain alignment and tension during reassembly, and rotate the mechanism by hand before powering the unit back on.
