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Replacement Rotors and Calipers Needed for a 2003 Mastercraft Single Axle Boat Trailer  

Question:

need to replace original rotors and calipers. Can you cross reference to see what i need in the Kodiak model? I know it has 6 lugs.

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Expert Reply:

To determine the correct Hub and Rotor for your 2003 Mastercraft single axle boat trailer you will need to determine what the inner and outer bearing part numbers are inside the hub, the brake mounting flange bolt pattern and the correct bolt pattern for your wheels.

In my experience the Mastercraft boat trailers have an integrated hub and rotor that utilizes oil bath seals and caps. The integrated hub and rotor would need to be removed and a new hub and rotor would be needed to replace it. The new hub and rotor would need to be compatible with the original bearings, brake mounting flange and with the bolt pattern for your wheels.

If you find that your single axle trailer has a 5 bolt brake mounting flange pattern, 6 on 5-1/2 bolt pattern wheel. inner bearing, # 25580, and outer bearing, # 15123, and uses a 10-36 seal, # RG06-070, then you could use the Kodiak Disc Brake Kit, # K2HR526D, along with the # BK3-100, bearing kit. You would also need a grease cap, # F001520 or a bearing buddy set like part # BB2441SS.

I have a friend who owns a dual axle Mastercraft trailer and it has 6 bolt wheels and oil bath hub/rotors. In his case he has had to go back to the Mastercraft dealer to get replacement brake parts because the bearings are for a 3500 lb axle, # L44649 and # L68149, and there is not an aftermarket hub/rotor available with a 6 lug pattern that can be matched to the bearing part numbers.

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Bob G
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