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Tillotson High Volume (Double Stack, Alky) Fuel Pump Diaphragm
237-154 Tillotson Alky (Methanol) Fuel Pump Diaphragm
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Tillotson High Volume (Double Stack, Alky) Fuel Pump Diaphragm

Part Number: 237-154
Online Price: $2.72
Fuel Pump Diaphragm Alky Methanol
Availability: In Stock.

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Description

237-154 Tillotson High Volume(Double Stack, Alky) Fuel Pump Diaphragm is the actual diaphragm that is pumping fuel for the carburetor. 

The High Volume, or what is known as a double-stack, has its fuel pump diaphragm separate from the fuel inlet/check valve diaphragm. The design is the reason for the additional plate and different designs. 


This diaphragm is what you will hear us call the "snakeskin" diaphragm as it resembles a snake's skin is actually a Polytetrafluoroethylene(PTFE, Teflon®) material. This material of most stock Tillotson Carburetors offers Clear Polyethylene Terephthalate(PET, Mylar®) used on many of our built carburetors. 


It is common for carburetor builders to convert gas carburetors into running methanol, which usually means changing the carburetor's pump stacks. We highly recommend buying a complete EC Pro Gasket or Rebuild when converting. This pump is also required to make the conversion to use the high-volume pump plates. 


Tillotson High Volume(Double Stack, Alky) Fuel Pump Diaphragm fits HL-304WX,WXA, HL-314F&G,HL-334WXA, HL-339A,HL-341A,HL-342A,HL-348A,B,C,D,E, HL-355A,B,C,D,E, HL-360B,C, HL-380A,B HR-181B, HR-184A, HR190A, HR-191C, HR-191G, HR-196A and other High Volume(Double Stack, Alky) Tillotson Carburetor

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