RareSI

I am looking to compile (as complete as I can) a list of Honda/Acura master cylinder sizes with part numbers to show what is interchangable.

Here is what I have built so far. I would appreciate anyone throwing in information that I have missing and/or incorrect.


listed in order of smallest to largest

13/16th

<u>46100-S04-A02</u>
- 96-97 Civic DX/HX (2-DR)
- 96 Civic CX/DX (3-DR)
- 97 Civic DX/LX (4-DR)

<u>46100-S04-A04</u>
- 97-00 Civic CX/DX (3-DR)
- 97-00 Civic DX (4-DR)
- 98-00 Civic GX/LX (4-DR)
- 97-00 Civic DX/HX (2-DR)

7/8th
<u>46100-SR3-913</u>
- 88-91 Civic Wagon 4WD 1600 (5-DR)
- 90-91 CRX Si
- 93-95 Civic EX (Non-ABS) (2-DR)
- 94 del Sol VTEC


15/16th

<u>46100-S04-A14</u>
- 97-00 Civic EX (2-DR)
- 99-00 Civic HX/Si (2-DR)

<u>46100-SH4-A11</u>
- 90-91 Civic EX (4-DR)

<u>46100-SM4-J04</u>
- 89 Accord LXi/SEi (All)
- 89-91 Prelude 2.0Si

<u>46100-SR3-043</u>
- 88-91 CRX DX/HF
- 88-89 CRX Si
- 88-91 Civic DX/STD (3-DR)
- 89-91 Civic Si (3-DR)
- 88-91 Civic DX/LX (4-DR)
- 88-89 Civic Wagovan (5-DR)
- 88-91 Civic Wagon DX (5-DR)
- 93-97 del Sol S/Si
- 92-95 Civic CX/DX/Si/VX (3-DR)
- 92-95 Civic DX/LX (4-DR)
- 93-95 Civic DX (2-DR)

<u>46100-ST7-013</u>
- 90-93 Integra RS/LS (All Non-ABS)
- 94-97 Integra RS

<u>46100-ST7-A52</u>
- 94-97 Integra GSR
- 94-01 Integra LS/RS (Non-ABS)


1"

<u>46100-SM4-G54</u>
- 91-93 Accord EX/SE (All)
- 94 Accord DX (2-Door ABS)
- 94 Accord LX (Wagon)
- 94-95 Accord DX (4-Door ABS)
- 94-96 Accord LX (2-Door ABS)
- 94-97 Accord LX (4-Door ABS)
- 94-97 Accord EX (All)
- 95-97 Accord LX V6 (4-Door)
- 95-97 Odyssey

<u>46100-SR3-833</u>
- 92-95 Civic EX ABS (4-DR)
- 94-95 Civic EX ABS (2-DR)
- 94 Civic Si ABS (3-DR)
- 94-95 Civic LX ABS (4-DR)
- 95-97 del Sol ABS

<u>46100-ST7-L51</u>
- 98-01 Integra LS/GSR/Type-R (All)

<u>46100-SW5-A11</u>
- 97 Integra Type-R
- 97-98 TL


Unconfirmed Sizes

<u>Unknown Part Number</u> - Belived to be a 1" unit.
- 96-00 Civic Type-R (3-DR)

<u>46100-S04-A12</u>
- 96-97 Civic EX (2-DR)

<u>46100-S04-A54</u>
- 96 Civic LX ABS (4-DR)
- 98 Civic GX ABS (4-DR)

<u>46100-S04-A72</u>
- 99-00 Civic GX ABS (4-DR)

<u>46100-S04-L52</u>
- 96-97 Civic EX ABS (2-DR)
- 96 Civic LX ABS (4-DR)
- 96-97 Civic EX (4-DR)

<u>46100-S04-L71</u> - Believed to be 15/16th but not confirmed
- 99-00 Civic EX ABS (2-DR)
- 99-00 Civic EX (4-DR)

<u>46100-S30-A01</u> - Believed to be 15/16th but not confirmed
- 98-99 Integra RS

<u>46100-SK7-A53</u> - Katman belives this is a 1" unit
- 90-93 Integra GS (All ABS)

<u>46100-SM4-A04</u>
- 90-93 Accord DX/LX/EX (2-Door)
- 91 Accord LX/EX (Wagon)
- 92-93 Accord LX (Wagon)
- 94 Accord DX/LX (2-Door)
- 94-97 Accord DX/LX (4-Door)
- 95 Accord LX V6 (4-Door Non-ABS)
- 95-97 Accord LX (2-Door)
- 97 Accord SE (2/4-Door)
- 92-95 Prelude S


Modified by RareSI at 12:48 PM 7/9/2005

Katman

94-95 EX coupe w/ABS has a 1" mc/booster

94-01 integra GSR & ITR ABS & NON ABS all have a 1" mc/booster

94-01 integra LS (non abs) 15/16 mc/booster

90-93 Integra's all have 15/16 mc/booster's if I'm not mistaken. I assume ABS models would have a 1" MC/booster.

btw any 90-01 integra MC/booster bolts up to any 88-00 civic, with the exception of hardline modifications when necessary.

mmuller

great info

Built Beast

I have a MC from a 97 Integra LS(with ABS) and I am wondering if that MC is an upgrade from my 98 Civic Ex(without ABS). I ordered the Prop Valve from an Si because the one from the Integra deff. wasn't gonna work. I also have another question, I heard that ABS rotors are bigger. Should I get some rotors for ABS even though my civic doesn't have it?

Sliced Beard

man where was this thread a year ago...I had to figure all of this stuff out on my own through trial and error. This would have saved me a lot of time

kudos to you

RareSI

Updated the list some guys.

N1 Andy

my 93 si w/rear disc factory, has a 13/16ths in it and as far as I know it has never been replaced.

PrettyLude

it would be great if they had a master cylinder that was a 1'' for a direct fit into an eg booster, without bending the lines.

great info man, need to add this to the faqs, i had a lot of trouble with this when i was doing the 5 lug conversion on an eg

Player_One

Dude, you struck gold! I was looking for the 15/16" upgrade for my non-ABS Del Sol and I came across your page. Never knew it existed! Subscribed!

I always thought I had a 13/16" though. I'm not at home so I can't check. If this info is correct, I already have a 15/16" MC.

Now I wonder if I can use the ABS Del Sol's 1" MC ABS on my non-ABS Del Sol...


Modified by Player_One at 11:48 AM 7/7/2007

Player_One

Hey RareSI,

If you're still checking this thread out, I was wondering where you're from. I wasn't able to pull up 46100-SH4-A11 from here in Canada. Most of the posts I've seen on the MC upgrade mentioned this part number.

I was able to have someone at the dealership pull up 46100-SR3-043 (also a 15/16" MC) though. I couldn't find this part number on any American Honda parts sources.

I kinda wish I had a Canadian Del Sol Si now... Both my USDM Del Sols have the 13/16" MC. I've got one from Pennsylvania and another from Illinois. Looks like it's time to put them up for sale (for more reasons than just the master cylinder of course...). I might pick up a CDM Del Sol. One with daytime running lights and so on.

Do you also know the orientation of the ears for the master cylinders? Like either \. / or -? I don't think I've ever seen |.

95vxtealhatch

I know the vx's are 13/16's. I thought the CX's were 13/16's as well.

egsleepercivic

some info is wrong

92 si definetly has 13/16th not 15/16th

Player_One

He might not be. It may depend on what country he's from or what country he's getting the info from.

For example, I cannot order 46100-SH4-A11 (90-91 Civic EX (4-DR)) from Canada... However, he does list 46100-SR3-043 as 15/16 which I can't pull up on any American Honda sites.

I'm going to check out a CDM Del Sol to confirm if I get time.

949

bump for any updates. this is gold!!!

emice

46100-ST7-A52

This is the part # for ABS equipped Integras from 94-97 which originally shipped with 15/16" brake master cylinders, but NTP(Nissin)/Adler is shipping 1" replacement cylinders. I received a new JDM NTP(Nissin)/Adler 1" BMC 46100-ST7-A52 through eBay. I suspect that 1" was stock for all ABS equipped 94+ Integras in Japan, so it is unclear whether US Honda dealers are carrying the 1" or factory shipped 5/16".

Katman in this thread in 2004 stated that all 94+ ABS Integra have 1" BMC but I am about to remove a 15/16" unit from an ABS equipped 1997 Integra LS, and I see posts that say it shipped with that size. If the dealerships have long switched to 1", and maybe a lot of cars have had their's switched out at this point, that could give the impression that the 1" was there all along.

It is important to know a drop in 1" replacement is available because a few postings give the impression the ITR cylinder/booster combo is needed to move to 1", which also requires relocating the brake hard lines. All 98+ Integras also came with 1" cylinders but they look identical to the 97 ITR model, with the studs from the booster horizontal to one another vs. at a diagonal for the 46100-ST7-A52. The last difference I noticed is that the reservoir on the 46100-ST7-A52 is round and feeds the two channels differently, with the rearward channel being fed through a longer narrow path vs. the ITR/98+ design.

Honda-tech says I can't post attachments so I've posted an album at the link below.

Integra 1" Brake Master Cylinder 46100-ST7-A52

The hump along the top, from the reservoir back, is an internal passage the feeds the rearward channel on this model. On ITR/98+ models the reservoir has a longer shape and the fluid leaves through two separate exits, dropping more directly into the rearward channel.

chi town brat

Thank you for this thread.