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Tillotson DG4-HLR OEM Gasket & Diaphragm Kit
DG-4HLR OEM Tillotson Double Stack Gasket Kit
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Tillotson DG4-HLR OEM Gasket & Diaphragm Kit

Part Number: DG4-HLR
Online Price: $11.99
Tillotson DG4-HLR OEM Gasket & Diaphragm Kit for High Volume Carburetors
Availability: In Stock.

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Description

Tillotson DG4-HLR OEM Gasket & Diaphragm Kit – High Volume Pump Stack Carburetors


The Tillotson DG4-HLR OEM Gasket and Diaphragm Kit is an original, factory-made service kit for Tillotson high-volume fuel pump stack carburetors. Designed to restore peak performance without a full rebuild, this kit is essential for regular maintenance and ideal to keep on hand for kart racing events, especially weekend-long races.


This kit is specifically engineered for high-volume "pump stack" diaphragm carburetors—commonly known as double-stack, double pumper, or alky plates—which feature a 3-plate aluminum stack (instead of the standard 2-plate design). These setups are popular for methanol-fueled and high-performance 2-cycle & 4-cycle racing engines due to their increased fuel delivery capacity.


Key Features:

  • 100% Genuine Tillotson OEM components
  • Ideal for methanol-tuned carburetors and high RPM performance
  • Essential replacement for worn, brittle, or leaking gaskets and diaphragms
  • A must-have for racing teams and pit toolboxes


What’s Included:

  • Main Diaphragm
  • Diaphragm Gasket
  • Fuel Pump Diaphragm
  • Fuel Pump Gasket
  • Inlet Valve Diaphragm
  • Inlet Valve Gasket


Compatible With These Carburetors:

  • Tillotson HL Series:
    HL-304WX, HL-348A/B/C/D/E/F, HL-355A/B/C/D/E, HL-360B/C, HL-380A/B
  • Tillotson HR Series:
    HR-181, HR-191, HR-196

These carburetors typically feature 3-plate high-volume stacks and are widely used in competitive karting and small-engine racing applications.


Looking for a Performance Upgrade?

For racers seeking enhanced performance or longer durability under high-demand conditions, consider our EC Pro P6-MDG Diaphragm & Gasket Kit. It’s built with premium-grade materials and includes several Tillotson OEM parts, specifically selected for competitive racing use. Always check your carburetor model and sanctioning body rulebook before ordering.


Why Choose OEM?

While aftermarket kits exist, Tillotson OEM parts deliver unmatched consistency, performance, and sealing capability, reducing the risk of failure and tuning issues during critical race events.

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