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Tillotson .020 Thick Fuel Pump Gasket
16B-223 Tillotson .020" Fuel Pump Gasket
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Tillotson .020 Thick Fuel Pump Gasket

Part Number: 16B-223
Online Price: $0.89
16B-223 Tillotson .020" Fuel Pump Gasket for Standard Volume Carburetors
Availability: In Stock.

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Description

16B-223 Tillotson .020" Fuel Pump Gasket – Standard Volume (Single Stack, Gas)


The 16B-223 Fuel Pump Gasket is a genuine OEM Tillotson component designed for use with standard volume (single stack) fuel pump plates commonly found in gasoline-powered carburetors. It installs beneath the fuel pump diaphragm, creating the necessary seal to maintain proper fuel pressure and consistent carburetor performance.


Important: This gasket is not compatible with high-volume (double stack, alky) pump stacks. Installing it incorrectly (e.g., above the diaphragm) can lead to fuel delivery issues, poor tuning response, and premature wear.


Key Features:

  • OEM part: Tillotson 16B-223
  • Designed for standard volume single-stack fuel pump assemblies
  • .020” thick — standard spec for most rulebook-governed applications
  • Prevents fuel leaks and pulse irregularities
  • Made from high-quality, fuel-resistant material
  • Compatible with gasoline applications; not for methanol (alky) setups


Performance Tip:

Tillotson offers two common fuel pump gasket thicknesses:

  • .020" (16B-223) – Stock thickness, typically rulebook compliant
  • .040" (219) – Thicker option for increased fuel volume and tuning flexibility

Before upgrading, verify your class rules and carburetor tuning needs.


Fitment Includes (but not limited to):

  • Tillotson HL-series:
    HL-1A, HL-129E, HL-132H, HL-166B, HL-166C, HL-189F, HL-227A, HL-227E, HL-229A, HL-321E, HL-232A, HL-232E, HL-250A-E, HL-274E, HL-292G, HL-293A/F, HL-299E, HL-334A/AA/AB/B, HL-WX, WXA, WXG
    HL-357A/B, HL-360A, HL-383A, HL-384A/B, HL-385A, HL-388A, HL-395A
  • Other HL carburetors using single stack (gas) pump plates


Installation Notes:

  • Always install below the diaphragm (closest to the fuel pump body)
  • Ensure surfaces are clean and dry for a tight seal
  • Replace gasket during rebuilds or after 3–5 race intervals
  • Lightly lubricate with mineral oil to prevent sticking or tearing


Part Number:

  • Tillotson OEM #: 16B-223
  • Thickness: .020"

FAQ

Q1: What is the 16B-223 Tillotson gasket used for?

A: The 16B-223 is a .020” fuel pump gasket designed for standard volume (single stack) gas carburetor pump plates in Tillotson HL-series carburetors.


Q2: Can I use this gasket with methanol (alky) fuel systems?

A: No. The 16B-223 is specifically designed for gas carburetors. For methanol (alky) applications, you’ll need a high-volume (double stack) setup and the correct gaskets.


Q3: Where does this gasket go in the fuel pump stack?

A: The 16B-223 gasket is installed below the fuel pump diaphragm, directly against the pump plate. Installing it incorrectly can cause tuning and performance issues.


Q4: Is this gasket legal for competition use?

A: Yes. The .020" thickness is typically spec-legal in most sanctioned racing series, but always check your specific rulebook for confirmation.


Q5: What’s the difference between the 16B-223 and 219 gaskets?

A: The 16B-223 is .020" thick (standard), while the 219 gasket is .040" thick and allows for higher fuel volume — useful for performance tuning when rules allow.

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