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Tillotson 1.00 Throttle Shutter
14-407 Tillotson 1.000" Throttle Shutter
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Tillotson 1.00 Throttle Shutter

Part Number: 14-407
Online Price: $2.99
14-407 OEM Tillotson Brass Throttle Shutter – Fits 1.00" Bore HL Carburetors
Availability: In Stock.

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Description

14-407 OEM Tillotson Brass Throttle Shutter – Fits 1.00" Bore HL Series Carburetors


Restore performance and throttle precision with the 14-407 OEM Tillotson Brass Throttle Shutter, engineered for 1.00" bore carburetors, commonly found in Tillotson HL-Series models. Manufactured from high-quality brass, this genuine OEM component ensures proper airflow, reliable engine response, and long-term durability.


Perfect for small engine rebuilds, performance tuning, or restoring vintage equipment, this throttle shutter is a direct-fit replacement for a wide range of HL carburetors.


Fits a Wide Range of Tillotson HL Carburetors:

Designed specifically for 1.00-inch bore carburetors, including (but not limited to):

HL-227A, HL-229A, HL-232A, HL-250 Series (A–E), HL-274E, HL-293A/F, HL-304 Series (E, WX, WXA, WXG), HL-306A, HL-314E/F/G, HL-324A, HL-334 Series (A, AA, B, AB, WX, WXA, WXG), HL-339A, HL-341A, HL-342A, HL-348 Series (A–E), HL-365A/B, HL-368A, HL-374A, HL-383A, HL-384A/B, HL-385A, HL-388A, and many more.


Key Features:

  • OEM Part #14-407 – Guaranteed Tillotson fit and quality
  • Precision-machined brass – Durable and corrosion-resistant
  • 1.00" bore compatibility – For common HL carburetors
  • Improves throttle response and fuel-air mix control
  • Ideal for chainsaws, race karts, and small engine applications


Whether you're repairing a classic saw or building a high-performance small engine, this brass throttle shutter delivers factory-spec functionality and lasting performance.

FAQ

What carburetors does the Tillotson 14-407 throttle shutter fit?

The 14-407 OEM throttle shutter fits most Tillotson HL-Series carburetors with a 1.00" bore, including HL-227A, HL-250 Series, HL-334 Series, HL-348 Series, HL-388A, and many others. Always verify bore size and part compatibility before ordering.


Is this an original Tillotson part or an aftermarket product?

This is a genuine OEM Tillotson part (Part #14-407), manufactured to original factory specifications for proper fit and performance.


What is the shutter made from?

The 14-407 throttle shutter is machined from high-quality brass, offering superior corrosion resistance, durability, and smooth airflow control.


How do I know if my throttle shutter needs to be replaced?

Common signs include erratic engine idle, throttle sticking, reduced power, or visual damage to the shutter. Replacing it can restore throttle response and engine performance.


Can this be used for racing or high-performance engines?

Yes. OEM Tillotson parts like the 14-407 throttle shutter are used in both standard and high-performance small engines, including race kart and chainsaw applications.

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