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Discussion Starter #1 (Edited)
I just purchased an 1991 4x4 Fourtrax ATV that needs work on the brake system. I am basically replacing most of the parts inside the brake assembly. I was looking for the wheel cylinders specifically and found them for sale at Cheap Cycle Parts.

My question is this... I was looking at the provided images for the 1993 TRX300FW model and the 1991 one, and the wheel cylinders -seem- to be interchangeable and about 1/3rd the price of the 1991 ones. Is there anyone that knows if they are, or where i could find more information on interchangeable parts between models?

Edit: The OEM part numbers I'm comparing are 1993 wheel cylinder B, left and right 45350-HC5-971 and 45370-HC5-971. The 1991 wheel cylinder B, left and right are 45350-HC5-006 and 45370-HC5-006.
 

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I just purchased an 1991 4x4 Fourtrax ATV that needs work on the brake system. I am basically replacing most of the parts inside the brake assembly. I was looking for the wheel cylinders specifically and found them for sale at Cheap Cycle Parts.

My question is this... I was looking at the provided images for the 1993 TRX300FW model and the 1991 one, and the wheel cylinders -seem- to be interchangeable and about 1/3rd the price of the 1991 ones. Is there anyone that knows if they are, or where i could find more information on interchangeable parts between models?

Edit: The OEM part numbers I'm comparing are 1993 wheel cylinder B, left and right 45350-HC5-971 and 45370-HC5-971. The 1991 wheel cylinder B, left and right are 45350-HC5-006 and 45370-HC5-006.
are you comparing them from a micro fich ?...i don't think they are the same..but if you compare the year's on micro fich..and the part numbers match..then go for it..me myself..i try to get the right ones for my year,,,may i ask if you are rebuilding them for what reason ?..are they shot ?..can they be rebuilt ?..if they can be rebuilt..it's a heck of alot cheaper just to buy new seals and plungers for them. thats what i did on mine..with my dremal and the small wire brush..it cleaned them up really well. if your having trouble getting the plunger's out...take a grease gun...with the same size fitting that will screw into the line..the grease gun will pop the plungers out very easy...sorry i couldn't answer your question more direct..but..i try to save as much money as i can...thats why i'm a shadetree machanic..lmao.
 

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shadetree, that greasegun trick is great advice. I have used it before.
thanks tom..yeah..i learned how easy it makes that little sucker pop right out..lol.
 

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An air hose might also work. I've used air to blow the piston out of automotive brake calipers before.
 
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