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Old 05-21-2013, 04:54 PM   #1
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Correct Part # Brake Master Cylider 2008 Alpine?

Hi,

We have a 2008 Alpine Limited 40' MDTS with the low roof line. I am about to have the brake system flushed per the recommendations on this forum and am considering replacing the master cylinder at the same time so I won't have to duplicate Labor costs later. I have spent a lot of time attempting to determine from the forum what new master cylinder (brand and part number) I need to order and take to the truck shop when I take the coach in. Is there anyone that has actually replaced theirs on this model Alpine that would have a part number? We have about 60,000 highway miles on it and have not had brake problems, but it seems others have and I would like to get the correct part and just do it once if possible. Any information / part numbers would be appreciated. Also, is there a great increase in braking power after the change over? Would you advise doing the master cylinder at the same time as the flush if it is not leaking or failing? Thanks in advance for your input.
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Old 05-21-2013, 08:23 PM   #2
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You should read this old thread Meritor Braking Improvement
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Old 05-21-2013, 10:44 PM   #3
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Do it, you'll love it. Part# is down deep in the thread Algoma linked.
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Old 06-02-2013, 04:01 AM   #4
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I bought the Wagner MC131759 Master Cylinder Assembly on Amason for $190 and free shipping. Had it installed by David at Accu Tract in Tucson with full brake bleed (all wheels off) for 5 1/2 hour labor and a gallon of Dot 3. Old time shop but he does great work and friendly service. I buy my parts, oil and filters and take them to him to install, or he'll take care of everything. Another Alpiner recommended him to me and I strongly recommend him. He also installed EM streering bracket stiffener for me.
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Old 06-02-2013, 09:03 AM   #5
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So, inquiring minds want to know--did your braking capacity improve?????
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Old 06-02-2013, 06:16 PM   #6
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About 30% or better improvement in braking efficency with a lot less pedal force required after the Redlands installed master cylinder along with a complete flush, fill, and bleed. I would never consider reinstalling the OEM unit supplied by WRV; however it does make a great paperweight or wheel chock.

However, if you are satisfied with your current braking capabilities, and apparently there are variations in model year braking efficiency, keep what you have. I was never a fan of what I considered less than acceptable braking in our 2006 with the adjustable pedals. Apparently the geometry of pedal travel had a big effect braking capability, or lack thereof.
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Old 06-02-2013, 06:24 PM   #7
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I can't say the brake capacity increased but the leg effort to apply the brakes definitely decreased. I didn't think my wife would be able to fully engage the brake before. Now the brake petal stroke is a little longer taking advantage of more leverage. Even easier to hold the brake at a red light.

If your going to do a brake fluid flush anyway it's a cheap simple upgrade that I think was worth it.
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