Complete Fuel Bowl Seal Kit for Ford 7.3L (99-03) - GZ-7-003
11 Viton o-rings and 4 Parker® fuel sleeves. 2 Fluorosilicone o-rings for the 7.3 yellow fuel drain valve core to fix your 7.3L Fuel Leak.
- 1 o-ring for the drain valve stem
- 2 o-rings for the drain valve to bowl seals
- 2 o-rings for the Water-in-Fuel sensor/Fuel Heater
- 1 o-ring for the Fuel Pressure Regulator housing
- 1 o-ring for the regulator piston bushing
- 2 o-rings for the fuel back check piston assembly
- 2 o-rings for bowl plugs
- 2 - 1/4" sleeves for the fuel lines feeding the cylinder heads
- 1 - 5/16" sleeve for the fuel return line
- 1 - 3/8" sleeve for the fuel feed line.
Order of 1 is a set of 11 o-rings and 4 sleeves.
NOTE: This kit does not contain the REGULATOR POPPET SEAT. This is a separate kit only available as a FORD kit. The Regulator Rebuild kit can be purchased separately as F81Z9B249BB on our website.
NOTE: If you remove the fuel rail lines from the cylinder heads, this kit contains the fuel sleeves for the filter bowl ends only. It is recommended to also replace the sleeves on the cylinder head end of the fuel rail lines once they have been removed as they will no longer seal properly. Order part GZ-7-004 to supplement this kit.
O-ring Identification Chart - Click Here
146 Reviews Hide Reviews Show Reviews
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O ring a lings
Killer kit. Don’t bother with Dorman o rings. This kit has everything you need!
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Fixed 2 leaks I had from drain valve and return line
Fixed 2 leaks I had from drain valve and return line
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sleeves are a perfect fit!
I ordered two other sets from different suppliers and the sleeves didn't fit. The sleeves that come in this set are a perfect fit!
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Fuel bowl o rings
Great product. Kit well documented.
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Early 99 7.3 Stroker
Very easy to follow diagram. Bought a brand new fuel bowl and upgraded the o-rings right out of the box. Also installed the FRX as well.
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Fuel bowl seal kit
Great
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Awesome set
Very nicely packaged. Shipping was quick. Great quality materials. Riffraff is my go to when it comes to my ford. They never disappoint.
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Outstanding
Great product at a great price. Came with all needed O-Rings to seal the fuel bowl and stop those pesky leaks.
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Great product
This was on time and very easy to put in.






