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  1. Trailer Brakes
  2. Dexter
  3. Disc Brakes
  4. 8000 lbs Axle
  5. Hub and Rotor
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
Dexter Disc Brake Kit - 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 - E-Coat - 8,000 lbs
Dexter

Dexter Disc Brake Kit - 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 - E-Coat - 8,000 lbs

Part Number: K71-635-91
In Stock
$1,826.57
Trailer Brakes
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Two brakes fit 8K axles with 16" to 17" wheels. E-coat finish on hubs, rotors, calipers, and mounting brackets resists corrosion. 9/16" Wheel studs, inner bearings (25580), outer bearings (02475), races, seals, and caps included. Great Prices for the best trailer brakes from Dexter. Dexter Disc Brake Kit - 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 - E-Coat - 8,000 lbs part number K71-635-91 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Dexter Trailer Brakes - K71-635-91

  • Disc Brakes
  • 8000 lbs Axle
  • Hub and Rotor
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • Standard Grade
  • 8 on 6-1/2 Inch
  • Dexter
  • 9/16 Inch Studs

Two brakes fit 8K axles with 16" to 17" wheels. E-coat finish on hubs, rotors, calipers, and mounting brackets resists corrosion. 9/16" Wheel studs, inner bearings (25580), outer bearings (02475), races, seals, and caps included.


Features:

  • Trailer brake assemblies make it easy to upgrade from drum brakes to disc brakes for better performance
    • More consistent stopping, even at highway speeds
    • Dramatically shorter stopping distance
    • Easier and less expensive to maintain
  • E-coat finish provides corrosion resistance for freshwater and limited saltwater use
  • Vented rotors help to regulate temperature to prevent overheating
  • Included hubs replace your existing hubs
  • Self-adjusting calipers ensure maximum surface contact for smooth, equal braking
  • Semi-metallic brake pads resist heat and provide excellent grip
  • Ductile iron mounting brackets provide strength and durability
    • Weld-on flanges sold separately
  • Kit includes 2 full brake assemblies for 1 axle
    • 2 E-coated rotors
    • 2 E-coated hubs with bolts pressed in
    • 2 E-coated ductile iron calipers
    • 4 Semi-metallic brake pads
    • 2 E-coated caliper mounting brackets with bolts and nuts
    • Bearings, races, oil seals, and oil caps
    • Thread sealant
  • Hydraulic brake actuator and lines (sold separately) are required for brakes to be activated
    • Requires psi rating of at least 1,600
  • Made in the USA


Specs:

  • Fits:
    • Axle capacity: 8,000 lbs
    • Wheel size: 16", 16-1/2", and 17"
  • Bolt pattern: 8 on 6-1/2"
  • Wheel bolt diameter: 9/16"
  • Rotor diameter: 12-1/4"
  • Brake flange configuration: 4 bolt
  • 5-Year limited warranty


Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 02475 (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 02420
  • Oil seal (included): 10-63
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"


K71-635-00 Dexter Axle Disc Brake Assembly - 12-1/4" Rotor - 8 on 6-1/2 - E-Coat - 8,000 lbs

K08-399-91 Dexter Axle Trailer Hub - Oil - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs





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See what our Experts say about this Dexter Trailer Brakes

  • Dexter Disc Brake Kits For Dexter 8,000LB Trailer Axles
    We have the following Dexter Disc Brake Kits depending of if you want a oil, grease or Nev-R-Lube hub. 12-1/4" Hub/Rotor - Grease - 8 on 6-1/2 -5/8" Stud # K71-635-92 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 -5/8" Stud # K71-635-93 12-1/4" Hub/Rotor - Nev-R-Lube - 8 on 6-1/2 -5/8" Stud # K71-646-2-91 12-1/4" Hub/Rotor - Grease - 8 on 6-1/2 -9/16" Stud # K71-635-90 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 -9/16" Stud # K71-635-91 12-1/4" Hub/Rotor - Nev-R-Lube - 8 on 6-1/2 -9/16" Stud # K71-646-2-90 These...
    view full answer...
  • Will A Dexter 8,000 Pound Disc Brake Kit Fit A Dexter 7,000 Pound Axle?
    Typically, a 7,000 pound and 8,000 pound axle will not only use different bearing combinations, but the bolt pattern for the backing plate or caliper bracket will also be different. The 8,000 pound Dexter Disc Brake Kit # K71-635-91 will us a # 25580 inner bearing, a # 02475 outer bearing, and uses a 4 bolt pattern. If your axle doesn't match this, you will need to go with a 7,000 pound kit. If it does match, you are good to go. If you end up needing a 7,000 pound kit, I recommend the...
    view full answer...
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  • Best Braking Setup to Replace Drum Brakes on 40 Foot Gooseneck Trailer 8k Drum Brakes
    Based on the dimensions and bolt pattern you listed the correct disc brake kit is the Dexter Kit part # K71-635-91. This matches the 4 bolt mounting bracket pattern you have, the bearings, and is an oil bath setup. This will bolt right up to what you have now and will give you much better braking performance. This is definitely your best option. Then for a kit that includes the best and most reliable actuator, the brake lines, and a breakaway kit you'd want the HydraStar kit part #...
    view full answer...
  • Recommended Conversion from Hubs with Drum to Oil Bath Disc Brakes on 8,000 lb Axle
    If you have a Dexter 8,000 lb axle then you can easily convert from drum brakes to disc brakes with the oil bath. I recommend the Dexter Disc Brake Kit - 12-1/4" Hub/Rotor - Oil - 8 on 6-1/2 - E-Coat - 8,000 lbs # K71-635-91 which comes with the bearings and oil seal you need. Then I recommend the Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle # XLPROLUBE. If you currently have hydraulic drum brakes, then updating the master cylinder to the disc brake version is all that...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Written by:
Brian T

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