Looking for a Harbor Freight Pump Gas Cap

   #1  

Travelover

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I've got a 3" gas water pump from Harbor Freight. Unfortunately, the gas cap vibrated off and landed on the engine. I arrived to find a melted plastic pancake. An email to HF was met with a "Sorry, parts no longer available" message.

The OD of the threads on the gas tank are about 2 1/4". A generic 2 1/8" cap sold at places like Home Depot is too small.

Any bright ideas on where to look for a cap or ideas to make one out of common materials? :confused3:
 
   #4  

kc5dlo

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I recently purchased a 3" trash pump and it also has a threaded cap and a separate tank vent with a hose going to the carb or air cleaner. Must be EPA mandated. Not sure if mine has male or female threads.

I was looking for a replacement cap to modify like they do to get extended run times on Honda generators. This pump does have a fuel pump so I might just slip a fuel line into a gas jug and bypass the built in tank. Might be a temp option for you.
 
   #7  

oldpilgrim

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iu
 
   #8  

bcp

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That works, but they flare up, and taste bad when cooked, after you find your cap.

Bruce
 
   #9  

Bansil

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maybe a 2-1/4 npt black iron pipe fitting ? or plastic/pvc npt fitting?
511scWK5x1L._SX342_.jpg

or even brass my bus uses one about 2-3" in dia
 
  
  • Thread Starter
#10  
OP
T

Travelover

Elite Member
Joined
Sep 9, 2002
Messages
3,462
Location
Washington
Tractor
B7100
I recently purchased a 3" trash pump and it also has a threaded cap and a separate tank vent with a hose going to the carb or air cleaner. Must be EPA mandated. Not sure if mine has male or female threads. I was looking for a replacement cap to modify like they do to get extended run times on Honda generators. This pump does have a fuel pump so I might just slip a fuel line into a gas jug and bypass the built in tank. Might be a temp option for you.
This pump had a similar system and the pump would die unless I left the cap a little loose. That was why it vibrated loose and melted.
 
 
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