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  1. Trailer Brakes
  2. Dexter
  3. Disc Brakes
  4. 6000 lbs Axle
  5. Hub and Rotor
  6. 15 Inch Wheel
  7. 16 Inch Wheel
  8. 16-1/2 Inch Wheel
Dexter Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs

Dexter Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs

Item # K71-638-639
Our Price: $1,647.99
Trailer Brakes
Shipping Weight: 111 lbs
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Two brakes fit 6,000-lb E-Z Lube axles with 15" to 16-1/2" wheels. E-coat finish on hubs, rotors, calipers, and brackets resists corrosion. Inner bearings (25580), outer bearings (15123), races, grease seals, and grease caps included. Great Prices for the best trailer brakes from Dexter. Dexter Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs part number K71-638-639 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Dexter Trailer Brakes - K71-638-639

  • Disc Brakes
  • 6000 lbs Axle
  • Hub and Rotor
  • 15 Inch Wheel
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • Standard Grade
  • 6 on 5-1/2 Inch
  • Dexter
  • 1/2 Inch Studs

Two brakes fit 6,000-lb E-Z Lube axles with 15" to 16-1/2" wheels. E-coat finish on hubs, rotors, calipers, and brackets resists corrosion. Inner bearings (25580), outer bearings (15123), races, grease seals, and grease 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
  • Grease caps feature removable plugs for easy access to grease zerks on E-Z Lube axle
  • 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, grease seals, and E-Z Lube grease 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: 6,000 lbs
    • Wheel size: 15", 16", and 16-1/2"
  • Bolt pattern: 6 on 5-1/2"
  • Wheel bolt diameter: 1/2"
  • Rotor diameter: 12"
  • Brake flange configuration: 5 bolt
  • 5-Year limited warranty


Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 15123 (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 15245
  • Grease seal (included): GS-2250DL
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"


K71-638-00 Dexter Axle Disc Brake Assembly - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs - Left Hand

K71-639-00 Dexter Axle Disc Brake Assembly - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs - Right Hand





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See what our Experts say about this Dexter Trailer Brakes

  • How Many Brake Sets Come with 6K Dexter Disc Brake Kit
    Yes, the picture for the Dexter Disc Brake Kit # K71-638-639 is correct - it comes with one set of brakes. This is how we sell our brake sets so users can purchase them per axle. Since you need 2 sets you'll need to change the quantity to 2 prior to ordering.
    view full answer...
  • Disc Brake Conversion Kit Parts for a 2018 Highland Ridge Open Range Travel Trailer
    To add disc brakes to your 2018 Highland Ridge Open Range Travel Trailer you'll need the following: - Hydrastar Electric Over Hydraulic Actuator # HBA16 - Kodiak Hydraulic Brake Line Kit # 20TA-BLKIT - Dexter Disc Brake Kit # K71-638-639 (standard 25580 inner and 15123 outer bearings) OR - Dexter Disc Brake Kit # K71-647-648 (42 mm Dexter Nev-R-Lube spindle) The Hydrastar actuator is the most reliable we have to offer and when you combine it with the Kodiak flexible brake lines and...
    view full answer...
  • 6,000 lb Disc Brake Kit with 6 Lug Bolt Pattern for Converting Raptor Toy Hauler to Disc Brakes
    The bearing difference doesn't mean too much since the spindles are the same so regardless of which axle you decide to put the brake kit on you'll need a 6k rated disc brake kit with an 6 lug bolt pattern. So for that we have the Kodiak brake kit part # K2HR526D which is a fit for your spindles. This kit does require the bearings part number # 25580 and # 15123 and seal part # RG06-070 which are sold separately. Or if instead you were wanting a kit that uses an idler hub and a slip-on...
    view full answer...
  • Recommended Hubs and Brakes for Building Trailer With 5,200 Pound Axle
    There are a few things going on here that I will attempt to address regarding your axles. The first being that you do not have a brake flange like the # 4-44-1 on these axles. In order to use any type of brakes they will need a brake flange. Based on the condition of the axles I wouldn't recommend welding a brake flange on but if you do you will need to have that done by someone with the right tools and skills to make sure it is correctly aligned. As for the capacity, it does sound right...
    view full answer...
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  • Fit of Dexter Disc Brake Kit for 6,000 lb Axles with Torsion Axle
    The Dexter Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - E-Coat - 6,000 lbs # K71-638-639 is compatible with certain straight and torsion axle trailers. It simply requires a 5 bolt brake flange and spindles with a 1.75 inch inner bearing diameter as well as a 1.25 inch outer bearing diameter. This is common on a Dexter 6,000 lb capacity axles whether straight or torsion. This kit is compatible with 15, 16, and 16-1/2 inch wheels only that have the 6 on 5-1/2 inch bolt pattern. If you...
    view full answer...
  • Will Replacement Disc Brake Piston K71-630 for Dexter Axle 8K Caliper Fit 6K Caliper
    I reached out to my contact at Dexter Axle and confirmed that the 1-7/8 inch diameter Replacement Disc Brake Piston # 054-093-00 is in fact used on both the 8,000 lb Dexter calipers # K71-630 as well as the 6,000 lb Dexter calipers # K71-636-00, so this will work well to replace the pistons on your Dexter Disc Brake Kit # K71-647-648 (Nev-R-Lube) or # K71-638-639 (standard). If you also need to replace the piston seals, you can use part # K71-670-00, which also includes the dust boots,...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Written by:
Brian T

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