XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Replacement brake accumulator

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Old Mar 14, 2019 | 12:19 PM
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Default Replacement brake accumulator

I couldn't find the original part for my 1994 XJS 4.0, at a reasonable price, so thought I would look at alternatives. Ordered a Bosch unit as fitted to AMG Mercs and Maybachs. It is a little smaller but screwed straight in. Took 32 seconds to charge initially and takes 23 brake pumps to empty it so I think it will work just fine. $85 Ebay.


 

Last edited by kansanbrit; Mar 14, 2019 at 12:21 PM. Reason: Added info.
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Old Mar 14, 2019 | 03:23 PM
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Cool, Keep us posted. I just replaced one on my xj40 and it cost me 200 or so from Welsch Ent
 
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Old Mar 14, 2019 | 10:43 PM
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I have a vacuum booster system. Wgat year was the accumulator done away with. You say yours is a 94. My 95 has vacuum booster.
 
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Old Mar 15, 2019 | 06:13 AM
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Default ABS

Originally Posted by carsnplanes
I have a vacuum booster system. Wgat year was the accumulator done away with. You say yours is a 94. My 95 has vacuum booster.
Does your 95 have ABS?
 
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Old Mar 15, 2019 | 11:23 AM
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kansanbrit,

Thanks for the info. It's always useful to know of alternative parts.

carsnplanes,

The brake system changed to a traditional servo type at VIN 198335, around November 1994.

Cheers

Paul
 
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Old Mar 15, 2019 | 11:59 AM
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Originally Posted by kansanbrit
Does your 95 have ABS?
Yes it does. Just common vacuum boosted brake system on 95 and prob 96
 
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Old Mar 15, 2019 | 12:00 PM
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Originally Posted by ptjs1
kansanbrit,

Thanks for the info. It's always useful to know of alternative parts.

carsnplanes,

The brake system changed to a traditional servo type at VIN 198335, around November 1994.

Cheers

Paul
Ah, good to know and as I thought. My VIN is 199XXX
 
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Old Mar 27, 2019 | 06:37 PM
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Default Update

Still working fine. Amazingly no bleeding was necessary.
 
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Old Mar 28, 2019 | 03:09 PM
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Hi Kansanbrit

What sort of Tool did you use to unscrew the Accumulator, as I am going to put a new one on my Car 'Cherry Blossom'
How much of a problem was it to unscrew?
 
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Old Mar 29, 2019 | 09:45 AM
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I used an allen key socket with ratchet and held the assembly from twisting by using a G clamp. Once it's held solid it just needs a bit of force to break it loose.
 
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Old Mar 29, 2019 | 11:19 AM
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Hi Kansanbrit

Many Thanks

I did my Car Today but getting the Ball unscrewed was a bit of a Nightmare!
 
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Old Oct 30, 2022 | 05:37 PM
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Care to weigh in with any longer-term issues with this accumulator? My 1994 XJS V12 is in need of a new one and finding a less expensive alternative would be nice.
 
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Old Oct 30, 2022 | 06:19 PM
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you could also use this

from a 98 to 03 Cadillac. Goes the other way, next size up, but still fits and under a 100 bucks.

I have found that they are all over the agri machine business, combines and harversters and such. If you can find a decent industrial hydraulic supply house, they either have or could order one direct from the manufacturer.
 
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Old Oct 31, 2022 | 06:45 AM
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Originally Posted by 71 MKIV
you could also use this

from a 98 to 03 Cadillac. Goes the other way, next size up, but still fits and under a 100 bucks.

I have found that they are all over the agri machine business, combines and harversters and such. If you can find a decent industrial hydraulic supply house, they either have or could order one direct from the manufacturer.
I installed that GM part a couple of years ago on my '94 V12 and it's been working fine (touch wood, of course&#128513.
 
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Old Oct 31, 2022 | 06:50 AM
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Good to know. I am always a bit apprehensive about using an alternative part unless others can say for certain that it fits and works properly.
 
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Old Oct 31, 2022 | 08:46 AM
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Originally Posted by MSGGrunt
Care to weigh in with any longer-term issues with this accumulator? My 1994 XJS V12 is in need of a new one and finding a less expensive alternative would be nice.
It worked perfectly. I eventually exported the car to Paris, France, was working fine when it left me.
 
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Old Oct 31, 2022 | 09:10 AM
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Nothing ventured nothing gained. I just ordered the GM 25676065 accumulator.

Total price with shipping was $107.00
 
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Old Oct 31, 2022 | 10:33 AM
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I currently have one in my 94 XJS and 94 XJ40
 
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Old Oct 31, 2022 | 08:25 PM
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My 93 works great with the cheaper accumulator. Hasnt missed a beat in 3 yrs i think? Time slips by lol
 
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