I suppose I am the 1st person to kill the new FRC-10.
First off I killed it by removing all pre-screens and filters. They were plugging up with dead bugs before I knew what I was dealing with. The pump is 1 year and 6 months old with 10,000 miles on it. It was taken apart and cleaned out. However, it never had the same flow due to internal leakage/higher friction from the scoring and was noisy - rattling. I removed it from service after a new prefilter setup caused a vacuum in the system and stalled out the engine. There are no rebuild parts available at this time for this model. Some parts like the screens, o-rings, and gasket will interchange with other models. I also had a fishbite going on prior to the new filter setup that was cured with a higher flow new lift pump. Again this one was not performing to specs anymore.
I rebuilt the other FRB-5 I have with a new armature that Walbro sent me. It suffered the same bad fuel, however, the rebuild fixed it and it continues to do well. Moral of the story is the screen is easy to clean and the factory tank sock can bypass letting dirt through. So leave the screen in. (Duh! But think of how fast buggy fuel plugs a filter and screen - real quick. Here for what went through em.)
The spring and armature are different between the pumps. It is possible the coil locations etc. may be different as well.
The FRC-10 as well as the FRB-5 have a lot more to offer than a stock pump. The built in screen allows tank sock removal without adding other prefilters. It has a magnet in the bottom screw. (The magnet has zero effect on diesel bugs no matter what snake-X devices claim.) You can take it apart and clean it out. The valves are better material with dedicated springs vs. rubber flappers.
The spring and armature are different between the FRC-10 and FRB-5. Note the armature scoring and metal on the end that killed this pump. The white thing in the armature is part of the second valve.

This part could be replaced to renew this pump:


I'll add this to the dead lift pump pile with a note of lasting the longest so far of anything I have used. If they sold rebuild parts this could be put back in service. Other than cleaning the screens from bad fuel I have not had to replace a lift pump in well over a year for a change.
Plugged socks contributed to short life I am sure. Towing and running hard did the rest as I was at high fuel flow RPM most of the time.
The pile has factory lift pumps, including one that was leaking fuel through the power wires. Most failed from biodiesel eating the valves.
I have a Carter rotory vane fuel cooled motor that biodiesel ruined the brushes - it now runs in reverse after a few hammer taps as a transfer pump.
You don't want to know how many Autozone lift pumps I have gone through under their warranty.
First off I killed it by removing all pre-screens and filters. They were plugging up with dead bugs before I knew what I was dealing with. The pump is 1 year and 6 months old with 10,000 miles on it. It was taken apart and cleaned out. However, it never had the same flow due to internal leakage/higher friction from the scoring and was noisy - rattling. I removed it from service after a new prefilter setup caused a vacuum in the system and stalled out the engine. There are no rebuild parts available at this time for this model. Some parts like the screens, o-rings, and gasket will interchange with other models. I also had a fishbite going on prior to the new filter setup that was cured with a higher flow new lift pump. Again this one was not performing to specs anymore.
I rebuilt the other FRB-5 I have with a new armature that Walbro sent me. It suffered the same bad fuel, however, the rebuild fixed it and it continues to do well. Moral of the story is the screen is easy to clean and the factory tank sock can bypass letting dirt through. So leave the screen in. (Duh! But think of how fast buggy fuel plugs a filter and screen - real quick. Here for what went through em.)
The spring and armature are different between the pumps. It is possible the coil locations etc. may be different as well.
The FRC-10 as well as the FRB-5 have a lot more to offer than a stock pump. The built in screen allows tank sock removal without adding other prefilters. It has a magnet in the bottom screw. (The magnet has zero effect on diesel bugs no matter what snake-X devices claim.) You can take it apart and clean it out. The valves are better material with dedicated springs vs. rubber flappers.
The spring and armature are different between the FRC-10 and FRB-5. Note the armature scoring and metal on the end that killed this pump. The white thing in the armature is part of the second valve.

This part could be replaced to renew this pump:


I'll add this to the dead lift pump pile with a note of lasting the longest so far of anything I have used. If they sold rebuild parts this could be put back in service. Other than cleaning the screens from bad fuel I have not had to replace a lift pump in well over a year for a change.
Plugged socks contributed to short life I am sure. Towing and running hard did the rest as I was at high fuel flow RPM most of the time.
The pile has factory lift pumps, including one that was leaking fuel through the power wires. Most failed from biodiesel eating the valves.
I have a Carter rotory vane fuel cooled motor that biodiesel ruined the brushes - it now runs in reverse after a few hammer taps as a transfer pump.
You don't want to know how many Autozone lift pumps I have gone through under their warranty.