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EC LK-125B Tillotson HL Double Stack Up-Pull Linkage Kit
LK-125B EC HL Double Stack Up-Pull Linkage Kit
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EC LK-125B Tillotson HL Double Stack Up-Pull Linkage Kit

Part Number: LK-125B
Online Price: $10.95
LK-125B Up-Pull Linkage Kit for Tillotson HL Double Stack Carburetors
Availability: In Stock.

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Description

LK-125B Up-Pull Linkage Kit for Tillotson HL Double Stack Carburetors


Optimize throttle response in your high-performance kart engine with the EC LK-125B Up-Pull Linkage Kit—precision-engineered for Tillotson HL Double Stack (Three-Plate) diaphragm carburetors featuring an up-pull throttle shaft. This configuration is ideal when the fuel inlet is positioned on top of the carburetor, as commonly found in competitive kart racing and small engine performance applications.


Race-Ready Design, Built to Last

The LK-125B kit delivers smooth, direct throttle control and clean routing for 3/16" throttle cable housing (nylon or brake line-style). All components are CNC-machined from high-quality billet aluminum for long-lasting durability and precision fitment—even under the harshest racing conditions.


Key Features & Benefits

  • Designed for Tillotson HL Double Stack (Three-Plate) carburetors with up-pull throttle shafts
  • Compatible with 3/16” throttle cable housing for smooth, professional-grade routing
  • Billet aluminum construction – strong, lightweight, and CNC-machined for a perfect fit
  • Includes all necessary mounting hardware for easy installation
  • Trusted by professional tuners and racers for competitive engine performance


Kit Includes

  • 68A-3A Straight Compression Fitting
    Securely connects your 3/16" throttle cable housing (EC part #300) for smooth routing in tight engine bays.
  • EC-139 Billet Throttle Bracket
    Mounts directly to the pump stack of compatible Tillotson HL carburetors, anchoring your throttle cable cleanly.
  • (2) 6-32 x 1.5” Socket Cap Screws
    Replaces two OEM pump stack bolts. Requires a 7/64" Allen wrench (not included).


LK-125A vs. LK-125B – Which Kit Do You Need?

  • LK-125A: Fits Single Stack (Two-Plate) HL carburetors
  • LK-125B: Fits Double Stack (Three-Plate) HL carburetors
    The only difference is the length of the included mounting screws.


Compatible Carburetors

The LK-125B is compatible with any Tillotson HL High Volume (Double Stack, Alky) carburetor that uses an up-pull throttle shaft, including:

  • Tillotson HL-334WX
  • Tillotson HL-334WXA
  • Tillotson HL-304WXA
  • Other HL-series carburetors with single pump stacks and up-pull shaft setups


Ideal For

  • Kart racing engines
  • Small engine performance builds
  • Custom throttle setups requiring up-pull linkage


Boost your throttle response and simplify cable routing with the EC LK-125B Up-Pull Linkage Kit—a must-have for serious builders and racers using Tillotson HL Double Stack carburetors.

FAQ

What is the LK-125B Up-Pull Linkage Kit used for?

The LK-125B is used to connect a 3/16” throttle cable to Tillotson HL Double Stack (Three-Plate) carburetors with an up-pull throttle shaft. It's ideal for kart racing engines and high-performance small engines.


What carburetors are compatible with the LK-125B?

It fits most HL-series Tillotson carburetors with a single pump stack and up-pull throttle shaft, including HL-334WX, HL-334WXA, and HL-304WXA.


What’s the difference between the LK-125A and LK-125B kits?

The only difference is the screw length:

  • LK-125A is for Single Stack (Two-Plate) HL carburetors
  • LK-125B is for Double Stack (Three-Plate) HL carburetors


What’s included in the LK-125B kit?

The kit includes a billet throttle bracket, a straight compression fitting for 3/16” cable housing, and two mounting screws.

 

Can I use this with brake line-style throttle cable housing?

Yes! The LK-125B is fully compatible with 3/16” brake line-style or nylon throttle cable housings.a

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