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3.303
138190012 Tillotson Clone 3.303 Stock Length Connecting Rod
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3.303" Stock-Length Connecting Rod for Honda GX200/Clone Engines

Part Number: 138190012
Online Price: $7.99
3.303" Stock-Length Cast Aluminum Connecting Rod for Honda GX200 & Clone Engines
Availability: In Stock.

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Description

3.303" Stock-Length Cast Aluminum Connecting Rod for Honda GX200 & Clone Engines


The 138190012 cast aluminum connecting rod is a stock-length 3.303” (84mm) replacement designed for use in Honda GX200 and 196cc clone engines. Engineered for durability and precision, this rod meets the minimum weight and dimensional requirements for most kart racing classes, making it ideal for both performance builds and race-legal applications.


Key Specifications:

  • Length: 3.303" (84mm) – OEM Stock Length
  • Material: Cast Aluminum – Lightweight yet strong
  • Weight: Approx. 137g – Above the 133g minimum for AKRA/NKA legality
  • Small End (Wrist Pin) Journal: ~0.709"
  • Big End (Crank Pin) Journal: ~1.1825"
  • Big End Oil Clearance: 0.002" – 0.005"


Engine Compatibility:

This rod fits most small-block 196cc GX200 clone-style engines, including:

  • Honda GX200 / Clone (196cc)
  • Box Stock Project 196
  • Ducar 196
  • Speed Kart 196
  • Tillotson 196R / 196RS / 212R
  • Wildcat 223 / 240

Fitment Tip: Always confirm your crank pin and wrist pin dimensions before installation.


Not Compatible With:

This connecting rod is not a direct fit for engines with different crank or wrist pin specs:

  • Predator 212 (Hemi & Non-Hemi) – Uses 1.188" crank pin
  • Predator 224 – Uses non-standard wrist pin
  • Tillotson 212E / Ghost 212 – Uses 0.716" wrist pin
  • Tillotson 225R/RS / 228–268cc – Uses 13mm wrist pin


Rulebook Compliance:

AKRA 2020 Rules for Connecting Rod:

Stock Box Stock Rod Only. Stock Rod Bolts only. Length of from the top of the journal to bottom of wrist pin hole 2.375" max and 2.350 min. Honing of journal end and wrist pin hole permitted, those surfaces must remain flat. Oil Hole Size .179", .0180" No Go. Minimum weight of rod assembly 133 grams. New stock performance CAST rod allowed.



NKA 2020 Rules for Connecting Rod

40.4.33: Rod

40.4.33.1: Billet rods are prohibited.

40.4.33.2: Honing is allowed but must maintain a factory-defined edge.

40.4.33.3: Oil Hole Size is Non-Tech

40.4.34: Rod Dimensions

40.4.34.1: Rod length: 2.350"-2.375"

40.4.34.2: Rod Minimum Weight: 133g with cap and bolts


This 3.303" cast aluminum connecting rod is a reliable, race-legal upgrade or replacement for Honda GX200 and 196cc clone engines. With a factory stock length and build, it meets AKRA and NKA technical guidelines while providing durability and consistent performance. Perfect for engine builders seeking a competitive edge without violating rulebook specs.

FAQ

1. What engines does this 3.303" connecting rod fit?

This rod fits most small-block clone engines, including:

  • Honda GX200
  • Box Stock Project 196
  • Ducar 196
  • Tillotson 196R / 212R
  • Wildcat 223 / 240
    Always verify crank pin and wrist pin specs before installation.


2. Is this rod legal for AKRA and NKA kart racing?

Yes. It meets all key requirements for:

  • AKRA: Rod length between 2.350"–2.375", cast material, 133g minimum
  • NKA: Cast only, no billet rods, 2.350" length, 133g minimum weight
    Honing is permitted if factory specs and surfaces are maintained.


3. Will this rod fit a Predator 212 or Predator 224?

No. This rod does not fit:

  • Predator 212 Hemi/Non-Hemi – Uses a 1.188" crank pin
  • Predator 224 – Uses a different wrist pin size
    Use engine-specific rods for those models.


4. What are the rod’s technical specs?

  • Length: 3.303" (84mm)
  • Material: Cast aluminum
  • Weight: ~137 grams
  • Wrist Pin Journal: ~0.709"
  • Crank Pin Journal: ~1.1825"
  • Oil Clearance: 0.002"–0.005"


5. Why choose a stock-length rod over a longer one?

A stock-length rod like this maintains factory geometry and simplifies compatibility with stock pistons and cams. It's ideal for classes that require OEM-style setups or builders seeking reliability and compliance.

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