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EC P2-DG Pro Rebuild Kit for Standard Volume(Single Stack, Gas) Carburetors
P2-DG EC Pro Rebuild Kit for Single Stack Gas Tillotson
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EC P2-DG Pro Rebuild Kit for Standard Volume(Single Stack, Gas) Carburetors

Part Number: P2-DG
Online Price: $8.99
EC P2-DG Pro Rebuild Kit for Standard Volume Tillotson Carburetors
Availability: In Stock.

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Description

EC P2-DG Pro Rebuild Kit for Standard Volume (Single Stack, Gas) Tillotson Carburetors


The EC P2-DG Pro Rebuild Kit is purpose-built for professionals and competitive racers working with standard volume (single stack, gas) Tillotson-style carburetors. Designed with performance in mind, this kit offers a complete and race-ready solution that goes well beyond typical OE or aftermarket options.


At EC Carburetors, we engineer our Pro Gasket Kits using either genuine OE components or premium aftermarket upgrades that are proven to perform in demanding small engine racing environments. Unlike budget kits that prioritize cost, we focus on durability, throttle response, and precision fuel delivery under high-RPM conditions.


Complete and Competitive Kit for Serious Racers

The EC P2-DG Kit includes often-overlooked but critical components like the brass fuel strainer screen and fuel strainer cork gasket—both of which are typically omitted in OE Tillotson and most aftermarket kits. These additions ensure a more complete rebuild that supports long-term reliability.


To help with assembly, every kit comes with an exclusive parts diagram, detailing the full layout and individual components of the Tillotson carburetor. This makes it easy for both professionals and DIY racers to reassemble with confidence.


High-Performance Diaphragms for Precision Tuning

At the heart of the kit is our Fast Action Main Diaphragm, a custom-engineered upgrade that delivers faster throttle response and better metering accuracy. With its “wagon wheel” design and consistent dowel height, this diaphragm ensures precise fulcrum arm adjustments and a smoother metal finish compared to OE versions.

The included 0.040” high-volume pump diaphragm gasket is a kart racing favorite. It increases the volume of fuel pumped through the stack—ideal for high-performance gas engines.


Optimized for Small Engines & Qualifying Setups

What sets the P2-DG apart from the P1-DG is the use of a thinner .004” fuel pump diaphragm, designed for:

  • Engines under 60cc (for better response and suction)
  • Qualifying runs on engines above 60cc (where response is prioritized over longevity)

Note: The thinner diaphragm delivers quicker fuel draw and sharper throttle response but may wear faster on larger engines. Always check your class rules and engine specs before ordering.


Kit Contents

  • Fast Action Main Diaphragm
  • 0.040” High-Volume Fuel Pump Diaphragm Gasket
  • 0.004” Fuel Pump Diaphragm
  • Brass Fuel Strainer Screen
  • Fuel Strainer Cork Gasket
  • Exclusive Tillotson Carburetor Assembly Diagram


Fitment & Compatibility

The EC P2-DG Pro Rebuild Kit is compatible with any standard volume (single stack, gas) fuel pump Tillotson carburetor, including popular racing models such as:

  • HL-129E
  • HL-166B
  • HL-352A
  • HL-357A / HL-357B
  • HL-383A

This kit is an ideal choice for kart racers, mini-bike builders, and small engine tuners looking for a competitive edge in both response and reliability.

FAQ

Q1: What carburetors is the EC P2-DG kit compatible with?

A: The EC P2-DG kit fits standard volume (single stack, gas) Tillotson-style carburetors, including popular models like HL-129E, HL-166B, HL-352A, HL-357A/B, and HL-383A.


Q2: What’s the difference between the P2-DG and P1-DG kits?

A: The P2-DG uses a thinner .004” fuel pump diaphragm, which offers quicker fuel draw and throttle response, especially in small engines or qualifying runs. The P1-DG includes a thicker .006” diaphragm for longer durability on larger engines.


Q3: Is the P2-DG kit suitable for larger engines over 60cc?

A: Yes, but it’s best used in qualifying or short-duration race conditions. The .004” diaphragm improves response but may wear faster on larger engines. For durability, consider the P1-DG for extended use.


Q4: Does the kit include all parts for a full rebuild?

A: Yes. The P2-DG kit includes essential gaskets, a Fast Action Main Diaphragm, high-volume fuel pump gasket, fuel strainer screen, cork gasket, and a carburetor diagram for easy reassembly.


Q5: What is the “Fast Action” Main Diaphragm?

A: It’s an EC-exclusive upgrade to OE metering diaphragms, designed to deliver faster throttle response, consistent fulcrum arm height, and better wear resistance, thanks to improved materials and smoother finish.


Q6: Is the included diagram useful for DIY rebuilds?

A: Absolutely. The included Tillotson carburetor diagram provides a detailed breakdown of components and assembly, making the kit ideal for both pros and DIY racers.

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