They prove to be far superior to almost all aftermarket kits and individual pieces. To ensure the performance and longevity of your carburetor, use Tillotson OE Rebuild Kits or our EC Pro Kits that use many Tillotson OE parts and components suitable for racing conditions and performance.

Kit Includes:

- Main Diaphragm

- Diaphragm Gasket

- Fuel Pump Diaphragm

- Fuel pump Diaphragm Gasket

- Inlet Valve Diaphragm

- Inlet Valve Diaphragm Gasket

The DG4-HLR Tillotson Diaphragm Gasket Kit can replace the gaskets and diaphragms in any Tillotson High Volume(DoubleStack, Alky) Carburetor including HL-304WX, HL-348A,B,C,D,E,F, HL-355A,B,C,D,E, HL-360B+C, HL-380A+B, HR-181, HR-191, HR-196. For a more complete, high-performance kit, use our EC Pro Kits. The P6-MRK EC Pro-Kit is an alternative replacement offering more performance advantages. Check your carburetor listing and if racing your rule book before ordering.

Tillotson STD Bore Piston (dished top)