Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Welcome to Jetboaters.net!
We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!
Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)
Guest, we are pleased to announce that Hydrophase Ridesteady is offering an extra $100 off for JETBOATERS.NET members on any Ridesteady for Yamaha Speed Control system purchased through March 7th, 2025. Ridesteady is a speed control system (“cruise control”) that uses GPS satellites or engine RPM to keep your boat at the set speed you choose. On twin engine boats, it will also automatically synchronize your engines.
There are 2 size races available for the inter bearing L 68149. One has an OD 2.327 and the other is OD 2.361. Does anyone one know which one is correct for the 2010 MFI trailer?
Thanks for the reply Speedling. I was trying to avoid taking any race out unless necessary. I always like to have bearings and races on hand in case in case of a problem. I usually replace the bearings and seals every 3 years. I thought maybe someone would have taken out the inter race and remember the size.
There are 2 size races available for the inter bearing L 68149. One has an OD 2.327 and the other is OD 2.361. Does anyone one know which one is correct for the 2010 MFI trailer?
I remember having this same question years ago when I bought spare bearings just in case I broke down somewhere. If I remember correctly, I just bought both races and threw them in my boat parts because they were so cheap and figured that I'd hopefully never figure out which ones were needed. (Crossing fingers, knocking on wood
Thanks for the reply @istdgm. I will probably do the same. Years ago I had a Chaparral boat and trailer and the bearings were the same. At that time, the bearings I got came from and auto parts store with a race which fit right in. I was never aware that their were 2 races available for the L 68149. Your philosophy is wise. ( If you have it, then you will probably never have to use it.)
I hate to say it, but you might have to dive into it to determine which race is correct for you. Everything else should be standard, but that inner race could be one of two. One is standard, the other is a less common, but my trailer came from the factory with the less common, but one hub was replaced, and used the common one.
These are the notes I made when I worked on my 2010 MFI trailer for a AR240.
I hope it helps you check amd cross reference some. I remember I did alot if cross searching and checking and these were my final notes.
Please verify information For your self.
.......
Brakes are GDC
Boat trailer hubs and bearings
Seals 2.56OD 1.68iD
dexter part 010-172-00 (168255TB)
Or
Ultra-Tow bearing kit #57124713, inner 1-3/8, outer 1-1/16, seal 1-23/32
Or
Trailer mfi DB35 brake calipers and 1.98" bearing buddies
I rebuild the starboard side of trailer. Everything looked good and I don't think it really needed to be done.
- I remember the caliper and disk did not line up the way I liked and thought it should and I used a washer as a shim while assembling it.
- I have the parts for the port side, maybe next year.
Only after rebuilding the rear hubs and installed new brake calipers do I see a warped disk. Back to the drawing board. This morning I ordered new rear hubs on Amazon. They will be in on Wednesday. Doing it twice is all so nice. NOT.