Fuel Pump Recommendations

[M20F-1968]

There are two high pressure fuel pumps listed as applicable to my airplane with IO360.  One is R00253-501 and the other is LW15473.  What is the functional difference between these and which one is preferred and for what reason?

 

Any comments would be appreciated.

 

Thanks,

John Breda

[N601RX]

LW15473 is the standard fuel pump that lycoming supplies with the io360 engine. The other number looks like a mooney number.

The 473 was recently superceeded.

http://www.lycoming.com/Portals/0/techpublications/serviceletters/SL%20L255%20(04-26-2013)/Approved%20Diaphragm-type%20fuel%20pumps.pdf

[Wakeup]

Side note on this topic... My breaker has popped twice on my fuel pump. It hasn't happened again?? Is this a precursor to a failing pump? Thanks. Troy

[MB65E]

The -3 lyc pump is engine driven for the fuel injection engines. The -2 pump is for carbed engines and the pressure is different...long story with a Great Lakes.

All accessory shops I've talked with highly recommend the factory LYC pump vs Tempest or other aftermarkets available.

Troy- could be the beaker. Is it the type that has the switch on it or is it a separate CB? On My switches, a few of them appear to be getting "soft" the electric dukes pump has a 10yr service life. Much debate here on Weldon and Dukes F. Pumps. Until my Dukes quits I'll be happy with it.

-Matt