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Tillotson Blue Fuel Inlet Cap/Strainer Cover
91A-351 Tillotson Blue Fuel Inlet/Strainer Cover
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Tillotson Blue Fuel Inlet Cap/Strainer Cover

Part Number: 91A-351
Online Price: $3.99
91A-351 Tillotson Blue Fuel Inlet Cap – OEM Methanol-Compatible
Availability: In Stock.

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Description

91A-351 Tillotson Blue Fuel Inlet Cap / Strainer Cover | OEM Methanol-Compatible Fuel Cap


The 91A-351 Tillotson Blue Fuel Inlet Cap / Strainer Cover is a genuine OEM replacement part designed for use with Tillotson HL, HW, HR, HB, HM, and HX series carburetors. The blue color is used for identification purposes, often indicating compatibility with high-volume fuel systems, such as double-stack or alcohol (alky) pump plates.


This cap is constructed from fuel- and chemical-resistant material, making it ideal for both gasoline and methanol applications. It comes standard on many high-performance Tillotson carburetors and is a minimum recommended component for most racing setups.


While the OEM blue cap offers good performance, if your rules allow, EC Carburetors recommends upgrading to their Red Hi-Flow Fuel Cap for improved fuel flow and greater durability. For maximum strength and longevity, especially in harsh environments, EC’s Billet Aluminum Fuel Cap is also available as a shatterproof alternative.

Note: Always check your rulebook and carburetor model compatibility before ordering aftermarket or replacement parts.


Key Features:

  • OEM Tillotson part #91A-351
  • Factory fuel inlet cap for high-volume carburetors
  • Fuel- and chemical-resistant plastic construction
  • Blue color for tech identification (not cosmetic)
  • Compatible with gasoline and methanol fuels
  • Works with HL, HW, HR, HB, HM, and HX Tillotson carbs


Compatible With:

  • Tillotson HL Series
  • Tillotson HW Series
  • Tillotson HR Series
  • Tillotson HB Series
  • Tillotson HM Series
  • Tillotson HX Series

FAQ

Q1: Is the 91A-351 blue fuel cap an original Tillotson part?
A: Yes, this is a genuine OEM Tillotson part, designed to fit a wide range of Tillotson carburetors and used on many factory configurations.


Q2: Why is the cap blue?
A: The blue color is for identification purposes, often indicating high-volume fuel systems like double-stack or methanol (alky) pump plate carburetors. It is not cosmetic.


Q3: Can I use this fuel cap with methanol?
A: Yes. The blue fuel cap is resistant to fuel and chemicals, making it fully compatible with both methanol and gasoline.


Q4: Which carburetors is the 91A-351 cap compatible with?
A: It has universal fitment for Tillotson HL, HW, HR, HB, HM, and HX series carburetors.


Q5: Is there a better option than the blue OEM cap?
A: While the blue cap performs well, EC Carburetors’ Red Hi-Flow Cap offers improved fuel flow and durability. For ultimate strength, the EC Billet Fuel Cap is also available.


Q6: Is this cap required by racing rules?
A: Some racing organizations may require OEM caps like this one. Always check your class rules before upgrading to aftermarket options like the red or billet caps.

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