Determining Correct Replacement Oil Bath Hub For 2003 Mastercraft Single Axle Trailer

Question:

Outer bearing number LM67048 Inner bearing 25580 Inner seal 21334TC Axle measurements 1.250” 1.750” 2.125” Six lug hub 5.5” spread between posts current hub number H 1206

asked by: Wayne

Expert Reply:

Assuming you are meaning replacing the entire hub, you will first need to remove the oil bath cap to access the spindle nut. There will be a cotter key holding the nut on, or a clip which will need to be removed next. After that remove the nut and slide off the hub.

If you have not already found the correct replacement hub then while the hub is off look for the bearing numbers stamped in the face of both the inner and outer bearings as shown in the included picture of the # L44649.

If the bearings are worn to the point that you cannot read the bearing numbers then you will need to use digital calipers # PTW80157 to precisely measure your spindle in the locations shown in the included diagram.

With the above information I would be happy to recommend the correct replacement hub for your 2003 Mastercraft Trailer.

expert reply by: Samuel C

Bearing Number Stamped On Face Of Bearing
(click to enlarge)

Where To Measure Spindle To Determine Inner and Outer Bearings
(click to enlarge)

Wayne

8/31/2021

Outer bearing number LM67048 Inner bearing 25580 Inner seal 21334TC Axle measurements 1.250” 1.750” 2.125” Six lug hub 5.5” spread between posts current hub number H 1206

Samuel C.

8/31/2021

Thanks for the information! For a replacement hub you will need the Dexter Trailer Hub and Drum # K08-201-98 which includes new inner bearing # 25580, new outer bearing # LM67048, new races, new grease cap, and new lug nuts. You will need to purchase grease seals # RG06-090 as the ones included with the hub are designed for grease and have a different inside diameter than your existing seal. Lastly for new oil you will need # XLPROLUBE. I included videos of the products mentioned for you to take a look at.