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RWD - Mid-Year 1995 940 Brake Booster

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Mid-Year 1995 940 Brake Booster 900

What is the difference between brake boosters mid-year 1995 from chassis# 203141 and the ones before this chassis number for all other 940s. I'd sure like to use an earlier chassis# brake booster on a mid-year 1995 940.
Thanks
--
Mine:4-940s running, 2-740, 1-940 parts, dtrs:4-940s





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Mid-Year 1995 940 Brake Booster 900

Be aware that online and local parts houses default to Cardone 53-5996 booster for 1993 940 ABS, but the master cylinder push rod is too long. Cardone 53-995 (for non-ABS cars)fits in my ABS 940.

FCPeuro no longer sells boosters for the 93 940 line.





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Mid-Year 1995 940 Brake Booster 900

Dear jd620,

Hope you're well. The earlier part (#3516094) and the later part (#9157699) differ in appearance (see photos on fcpeuro website, e.g., https://www.fcpeuro.com/products/volvo-power-brake-booster-940-960-s90-v90 ). These photos suggest - but certainly do not prove - that the mounting formats of each part are the same.

The earlier part no longer is supplied by Volvo. The later part is supplied by Volvo. FCPEuro supplies a re-built item for the earlier part, but a new, Bosch item for the later part.

The same master cylinder (#6819771) is specified for 1994-1998 cars (940s and 960s). Tha suggests that both booster units' "output" is the same, i.e., that they will interchange insofar as boost capacity is concerned.

Because the master cylinder part number did not change (as between earlier and later 1995 940s), I suspect that the booster part number change was driven by a change in supplier of the booster unit. A parts database shows that the earlier part cost about $770 (from a dealer, when Volvo supplied it) while the later part costs about $570. I'd guess that the price difference likely drove the supplier switch.

In short, if I had to bet, I'd bet that the two parts interchange seamlessly. The proof - or disproof - of this statement can only come from someone, who put an earlier booster into a late-model-year 1995. If you're lucky - these boosters don't seem to fail very often - a fellow board-member has done this.

Hope this helps.

Yours faithfully,

Spook





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Mid-Year 1995 940 Brake Booster 900

Thanks Spook, I'm considering adding to my family fleet of 8 running 940s and 3 parts cars a 1995 940 I'm thinking will take the later booster. The possible new addition needs a brake booster. I have 3 good boosters from the parts cars. I may just take a chance and try to replace the booster with one of the old ones. If it doesn't replace, I'll know the procedure well for the junkyard stripping of a booster.
--
Mine:4-940s running, 2-740, 1-940 parts, dtrs:4-940s





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Mid-Year 1995 940 Brake Booster 900

I remanufactured brake boosters for 9 years. Sold the company in 1999. As long as the bolt pattern is the same they are interchangeable. I have used a 960 booster on my 940 works just fine.





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Mid-Year 1995 940 Brake Booster 900

Thank you PA24, the latest late model 1995 940 with the different P/N brake booster is coming home today. I have 3 parts cars so the good news is I have 3 brake boosters even for the late model.
--
Mine:4-940s running, 2-740, 1-940 parts, dtrs:4-940s





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Mid-Year 1995 940 Brake Booster Replaced w/ 1991 740 w/o ABS Brake Booster-Okay! 900

I replaced the brake booster w/ one from my parts car, a 1991 740 w/o ABS, and it worked just fine.
FCP EURO says "Will it fit my car" it should work but doesn't say one from a 1991 740 w/ABS will work but I'm thinking it will work.

Now, if I could only figure out Moonroofs!
--
Mine:4-940s running, 2-740, 1-940 parts, dtrs:4-940s





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Mid-Year 1995 940 Brake Booster 900

Dear PA24 driver,

Hope you're well. Thank you, for confirming what I suspected, i.e., that 960 and 940 brake boosters indeed will interchange!!!

Your insight should go into this site's FAQs.

Yours faithfully,

Spook





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