456 / 550 / 575 Cross Reference, Interchangeable Parts Source Thread

Grant, that turbine style pump will "probably" work for the 456M, 550 and probably even the 575M, but it won't work for the early 456's as they use a different style/size roller cell pump from Bosch.

I say it will "probably" work, only because its output vs pressure hasn't been verified against an OEM pump.

So we can tentatively say it will interchange with the newer 173891 pump, but it will not interchange with the older 155592 pump for the 456 GT.

I'm sure an enterprising owner/tech could probably make the newer style pump fit into the older fuel basket assembly, using a new style rubber cushion/gasket, and he'd have a setup that is both quieter and consumes less power than the old style.

 

This is the little pump that lives in the right front wheel well behind the inner fender cover on the 550. It's used on nearly every Ferrari model from the mid-90's onward.

My 550's pump is a Bosch 0 392 020 064, and currently costs around $835, but there are many varieties of this pump on eBay and elsewhere, as Mercedes, Volvo, BMW, etc. all use them too.

The connections on the pump are 19mm nipples, and the hoses were fairly loose, and no doubt were a source of air leaks. One or the other simply pulled off the pump with no loosening of the hose clamp needed...... The electrical connection is a Bosch EV-1, the standard injector type connector.

I opted to replace my pump with a Johnson CM30-P7 pump from SPX - a Swedish outfit. This seems to be a popular retrofit for the Mercedes crowd and that's where I learned about these. The Johnson pump is the same OD as the Bosch, but is a little longer, which isn't a problem in the 550 wheel well, but may be for other models. The Johnson pump has 20mm nipples, so the hoses fit a bit tighter - I replaced my suction hose with a new one, and lopped the end off the discharge hose as it was swollen and looking dodgy, but I reused the rest of the hose.
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Nick, that may be so. I simply provided the Bosch P/N as it was shown on one of my regulators, but haven't tried fitting one to see if it works. However, Amazon sell them here: Amazon.com: Bosch 0280160564 Fuel Pressure Regulator: Automotive for $115, and they're eligible for Prime, so it's a no risk deal to try one then return it if it doesn't fit. Unfortunately, although it's shown as Prime, it also says 4-5 week delivery, which is odd.

Be a hero and try it for us and let us know if it fits

 

550/575 Steering Rack, Ferrari P/N: 170858

ZF P/N: 7832 993 108

Hydraulic Spool Valve, not available separately from Ferrari, but ZF P/N: 7039 442 102
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Whenever I've come to the 456/550/575 section the last day or two, I noticed this Interchangeable Parts thread has been on top, but there's been no new posts. Then it finally hit me (I'm a little slow sometimes), we finally achieved STICKY status!! Woohoo; now I can ditch the shortcut I kept on my desktop to the thread

Thanks to the kind soul who answered all the requests to make it a sticky, and thanks to everyone who is participating in it.

But back to interchangeable parts:

Brake Duct: Ferrari P/N: 174155. This is 80mm or 3.25" duct. 3" nominal duct is too small, so beware of the stuff advertised as 3".

McMaster P/N: 5499k247 is close, (McMaster-Carr High Temp 3.25" Blo-R-Vac Duct) but does not have the white stripe that the OEM duct has. It's 2 ply so arguably better quality than the OEM product. (I'm using this on my 550 and it's fitting fine so far)

Aircraft Spruce P/N: 05-30513 (CEET AIRCRAFT DUCTING from Aircraft Spruce) is even closer as it's also 2 ply, plus has the white stripe. (Konadog is using this on his 575)

The ends need to be bonded to the naca ducts, and we're still searching for a product to do that. The wide variety of Gorilla Tape looks to be a winner, as Moorfan used it to patch his duct two years ago and it's still holding up.

 

Well done Nick & thanks for the confirmation. BTW, I seem to recall there are some little rubber seals that go between the FPR's and the rails? Did the new FPR's come with those?

Thanks Taz, yea that's a given with the 575's returnless system.