Couger1968
Dazed and Confused
I was wondering what the proper fuel sending unit for a syclone is. Some have wire code VPX listed for them and I am not sure what a syclone would have. I run a Walbro pump
Proper fuel sending unit
- Thread starter Couger1968
- Start date
Aeroking
e.i.
Re: Proper fuel sending unit
I believe the VPX refers to the fuel line fittings for high pressure fuel injection. The pictures on Napa show the VPX threaded fittings, which should be what you want. I believe the standard is a slip fit and hose clamp for low pressure systems. But don't quote me on that.
The VPX should be the one you want.
And your Walbro should plug straight into the sender.
I believe the VPX refers to the fuel line fittings for high pressure fuel injection. The pictures on Napa show the VPX threaded fittings, which should be what you want. I believe the standard is a slip fit and hose clamp for low pressure systems. But don't quote me on that.
The VPX should be the one you want.
And your Walbro should plug straight into the sender.
Couger1968
Dazed and Confused
Re: Proper fuel sending unit
I think the vpx is slightly later to 95.The regular just goes to 1987-1991 the vpx is 1991 -1995. I don't know if they maybe had heavier wire or something. I ordered both and am going to compare.
I think the vpx is slightly later to 95.The regular just goes to 1987-1991 the vpx is 1991 -1995. I don't know if they maybe had heavier wire or something. I ordered both and am going to compare.
Last edited:
DaveP
Active member
Re: Proper fuel sending unit
The "VPX" or "SEM" and there are several other are Broadcast Code or SPO Code. These codes identify the part's configuration so the assembly line worker selects the correct part for the particular vehicle.
For Syclone, the differences are the line fittings and DIAMETER. The high pressure sender has nut and o-ring fittings, and is 5/16" diameter. This Sender was first used on Syclone in 1991, but was also used for the L35 beginning in 1992. The low pressure sender used for TBI has slip-on fittings, and a 3/8" diameter feed line.
Same deal for Typhoon, 2 different senders, but they are different configurations because the Utilitiy body fuel tank is different than the pick-up's. (Disclaimer: I don't recall from memory whether the 13 gal pick-up tank sender is different from the 20 gallon. Doesn't concern too many peeps anyway.)
So 4 different senders for the SyTy years' 20 gal tanks.
There was a good thread a few years ago that had Spectra P/N's, pics and descriptions of the different senders. And the different SPO codes for the same sender.
The "VPX" or "SEM" and there are several other are Broadcast Code or SPO Code. These codes identify the part's configuration so the assembly line worker selects the correct part for the particular vehicle.
For Syclone, the differences are the line fittings and DIAMETER. The high pressure sender has nut and o-ring fittings, and is 5/16" diameter. This Sender was first used on Syclone in 1991, but was also used for the L35 beginning in 1992. The low pressure sender used for TBI has slip-on fittings, and a 3/8" diameter feed line.
Same deal for Typhoon, 2 different senders, but they are different configurations because the Utilitiy body fuel tank is different than the pick-up's. (Disclaimer: I don't recall from memory whether the 13 gal pick-up tank sender is different from the 20 gallon. Doesn't concern too many peeps anyway.)
So 4 different senders for the SyTy years' 20 gal tanks.
There was a good thread a few years ago that had Spectra P/N's, pics and descriptions of the different senders. And the different SPO codes for the same sender.
Couger1968
Dazed and Confused
Re: Proper fuel sending unit
Thank you, so it is probably the FG06A it looks like it fits your description. I hope this is my problem
Thank you, so it is probably the FG06A it looks like it fits your description. I hope this is my problem
Couger1968
Dazed and Confused
Re: Proper fuel sending unit
So I swapped the unit and it was the FG06A . The FG06B was indeed just push on fittings. Just a note if swapping unit from a walbro, the sock that comes with it is different from Walbro and I tore mine trying to switch it. I found one at a parts store that would work
So I swapped the unit and it was the FG06A . The FG06B was indeed just push on fittings. Just a note if swapping unit from a walbro, the sock that comes with it is different from Walbro and I tore mine trying to switch it. I found one at a parts store that would work