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Riffraff Diesel Performance Inc, Engines - Supplies, Equipment & Parts, Eagle Point, OR


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Complete Fuel Bowl Seal Kit 99-03

  • Complete Kit
  • Fluorosilicone Drain Valve Orings
  • Viton Drain Valve Orings
Part Number:

Complete Fuel Bowl Seal Kit for Ford 7.3L (99-03) - GZ-7-003

11 Viton o-rings and 4 Parker® fuel sleeves. 3 Viton (type A) or 3 Viton (type B) or or 3 Fluorosilicone o-rings for the 7.3 yellow fuel drain valve core

  1. 1 o-ring for the drain valve stem
  2. 2 o-rings for the drain valve to bowl seals
  3. 2 o-rings for the Water-in-Fuel sensor/Fuel Heater
  4. 1 o-ring for the Fuel Pressure Regulator housing
  5. 1 o-ring for the regulator piston bushing
  6. 2 o-rings for the fuel back check piston assembly
  7. 2 o-rings for bowl plugs
  8. 2 - 1/4" sleeves for the fuel lines feeding the cylinder heads
  9. 1 - 5/16" sleeve for the fuel return line
  10. 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

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Product Reviews

Showing reviews 1-10 of 39 | Next

  1. Very simple 5 Star Review

    Posted by on Apr 24th 2018

    Very easy to tell where every thing goes by the paper that comes with the kit can't go wrong with this.

  2. Quality items 5 Star Review

    Posted by on Feb 13th 2018

    The only way it could get better is if they would pay me to take their great products!

  3. Worked great 5 Star Review

    Posted by on Feb 10th 2018

    Tore apart my fuel bowl to find out every single seal was bad. Truck loped at start and was getting air in the system. Ordered a pressure relief valve and new drain valve as well. Diesel ORings and Motocraft parts very happy with my purchase

  4. 7.3 fuel bowl rebuild kit 5 Star Review

    Posted by on Jan 31st 2018

    Worked great had no problems what so ever.

  5. Fuel bowl o-rings 5 Star Review

    Posted by on Jan 27th 2018

    Great fit no leaks

  6. Fuel bowl rebuild 5 Star Review

    Posted by on Jan 25th 2018

    A very easy and economical fix for a leaking fuel bowl. Very clear and concise instructions included.

  7. The right stuff the frist time 5 Star Review

    Posted by on Dec 7th 2017

    Resealed the fuel bowl as promised

  8. Everything you need 5 Star Review

    Posted by on Nov 27th 2017

    I suffered from a fuel leak on my drain valve. Bought this with the regulator spring kit. Install took half the time I thought it would. 4 threaded fuel line fasteners, 1 electrical connector, 2 bolts, and 1 slip on hose for the drain valve, and out it comes. The new seals take no time to replace. Check everything for rust, then check it again!

  9. Exactly what was needed. 5 Star Review

    Posted by on Nov 9th 2017

    My engine was leaking diesel only when it was cold. This worked perfectly to correct the issue and get the truck running right again. RiffRaff was helpful in determining what was needed by using their chat feature. I’ve been using RiffRaff for all my truck needs since I found them.

  10. Just what I needed 5 Star Review

    Posted by on Oct 25th 2017

    Had a leak at the fuel drain on my fuel bowl. Just went ahead and rebuilt it with this kit. Everything I need to fix and install it. Thanks!

Showing reviews 1-10 of 39 | Next