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EC Hi-Flow Red Fuel Inlet Cap/Strainer Cover
91A-351R EC HI-Flow Red Fuel Inlet/Strainer Cover
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EC Hi-Flow Red Fuel Inlet Cap/Strainer Cover

Part Number: 91A-351R
Online Price: $3.01
91A-351R EC Hi-Flow Red Fuel Inlet Cap – High-Performance Tillotson Upgrade
Availability: In Stock.

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Description

91A-351R EC Hi-Flow Red Fuel Inlet Cap / Strainer Cover | High-Performance Replacement for Tillotson Carburetors


The 91A-351R EC Hi-Flow Red Fuel Inlet Cap / Strainer Cover is a high-performance aftermarket upgrade designed by EC Carburetors for use with Tillotson carburetors. Unlike OEM Tillotson caps, this custom-engineered fuel cap offers improved fuel flow, enhanced durability, and easier tech identification.


While red in color for identification purposes, the cap’s true value lies in its upgraded internal flow design, which supports both gasoline and methanol applications. The 91A-351R cap comes standard on EC's Dominator and Intimidator Series carburetors—trusted in high-performance racing environments—unless rules require OEM alternatives.


If rules allow, we highly recommend replacing your stock fuel cap with the EC Red Hi-Flow version for maximum fuel delivery and reliability. For applications where extreme durability is needed, EC also offers a shatterproof billet aluminum fuel cap (sold separately).


Note: Always consult your class rules and carburetor compatibility listing before purchasing or installing aftermarket components.


Key Features:

  • High-flow design for optimized fuel delivery
  • Durable aftermarket construction – stronger than OEM plastic caps
  • Color-coded (red) for quick tech inspection identification
  • Designed by EC Carburetors – not a Tillotson OE part
  • Compatible with both gasoline and methanol fuel systems
  • Standard equipment on EC’s Dominator and Intimidator carburetors


Compatible With:

Universal fit for Tillotson carburetor models, including:

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

FAQ

Q1: Is the EC 91A-351R Red Cap an original Tillotson part?
A: No, this is an aftermarket part designed by EC Carburetors, not an OEM Tillotson product. It is engineered for better flow and durability than the stock cap.


Q2: What makes this red cap different from the OEM fuel inlet cap?
A: The EC Red Cap features a high-flow internal design and stronger construction than standard Tillotson caps. It is also color-coded for easier tech inspection.


Q3: Can I use this fuel cap with methanol?
A: Yes. The 91A-351R is compatible with both gasoline and methanol fuel systems, making it ideal for performance and racing applications.


Q4: Which carburetors does the 91A-351R cap fit?
A: It has universal fitment for most Tillotson HL, HW, HR, HB, HM, HD, and HX model carburetors.


Q5: Do EC’s Dominator and Intimidator Series come with this red cap?
A: Yes, all EC Dominator and Intimidator carburetors include this red cap by default, unless restricted by class rules.


Q6: Are there other options for even more durability?
A: Yes. EC also offers a Billet Aluminum Fuel Inlet Cap, which is shatterproof and ideal for harsh racing environments.

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