Item #: GG-FHBO
  • About This Product
  • Reviews
  • Install And Tech Information
  • Videos


If the fuel heater top in your '98.5-'99 Dodge Cummins Diesel is leaking and you've searched for a replacement, you've learned that it has been discontinued. Your remaining option is to replace your filter canister or remove the thermostat/wiring harness and seal it off. The fuel heater block off allows you to eliminate the leaky fuel heater from the discontinued fuel filter top on '98.5-'99 Dodge Cummins trucks.

Plug includes (2) viton rubber O-rings and installation instructions.


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Leaky fuel heater
Nov 13, 2018  |  By Neal Spurgeon
I have a 1998.5 Cummins and this fixed my leaky fuel heater. The instructions and how to video were excellent. Geno's got the part to me expediently as well. The customer service is the best in the country.

Fuel heater block off
Feb 6, 2018  |  By Anthony rullo
Works great stopped the leak n got a free catalog sticker and popcorn you guys are awesome i will tell all my freinds about you guys thx again

Great product
Nov 22, 2017  |  By Derek Kuda
Excellent option to replacing the whole housing

Shop owner
Nov 9, 2017  |  By Brian Brunet
Perfect fit, perfect fix

7.3 fuel heater delete plug
Jun 22, 2017  |  By Patrick Fawson
Quick and easy install. No more leak !!!

Jun 18, 2017  |  By Rick
Worked great simple to install

Jun 2, 2017  |  By Kevin Johnson
Great product and performed excellent. Easy to do and fixed my issue

Fuel heater bypass plug
Mar 22, 2017  |  By Luke Mcclain
The part fit and works great. No leaks. The tech support answered all my questions and helped alot also. Couldnt find this part in my town.

Install and Tech Information

Download Fuel Block Off Plug Instructions.pdf