Replacement Grease Seal For A Dexter D1012 Trailer Axle
Updated 12/22/2025 | Published 09/28/2024
Products Featured in This Question
Question:
I have a Dexter axle d1012 with a 395s bearing and 394 race the other Bering is a 382a what hub seal do I need
asked by: Ron H
Expert Reply:
Hey Ron,
Dexter lists the bearings and races for the D1012 as:
Inner bearing # 387A
Inner race # 382A
Outer bearing # 25580
Outer race # 25520
They unfortunately don't list the seal and since there's going to be differing seals that could fit that spindle so you'll really want to to use a caliper # PTW80157 to measure point B from the diagram to get the inner diameter of the seal and then measure the bore hole of the hub to get the outer diameter. If you can tell me those measurements I'd be happy to look for the correct replacement seal.
(click to enlarge)
Product Page this Question was Asked From
Dexter Nev-R-Adjust Electric Trailer Brakes - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- Self Adjust
- 12-1/4 x 3-3/8 Inch Drum
- 9000 lbs Axle
- 10000 lbs Axle
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- Dexter
more information >
Continue Researching
- Q&A: Are Pacbrake Alpha HD Air Bags Compatible With Turnoverball On 2024 Ford F-250
- Q&A: Replacement Trailer Jack for Viking Legend Pop-Up Camper
- Q&A: Replacement Brake Assemblies for Dexter 10k Axles on Gatormade Trailer
- Q&A: Troubleshooting Red Flashing Light on the Curt Venturer Trailer Brake Controller # C74VV
- Q&A: Replacement 12 Inch Brake Assemblies for Redline EB01-140 and EB01-145 From Dexter Axle
- Q&A: I Am Looking For A Replacement Door Latch For My Furrion Everchill 12v Refriderator
- Q&A: Recommended 12,000 lbs Capacity Weld On Square Jack w/a 28-3/4" Lift
- Article: Brake Controller Installation: Starting from Scratch
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Trailer Wiring Diagrams
- Article: Most Popular Wheel Bearings
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
Jameson C.
12/22/2025
Hey Ron, were you able to measure the spindle and hub bore with the caliper to find the right hub seal for your Dexter axle? Once you had those numbers, did you land on a seal that fit well? Your results could help others sorting out the same axle setup.