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Stock Crankcase / Side Cover Dowel Pins for Honda GX200/Clone Engines
138190016 Tillotson Clone Hollow Dowel Pins
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Stock Crankcase / Side Cover Dowel Pins for Honda GX200/Clone Engines

Part Number: 138190016
Online Price: $1.00
Stock Hollow Crankcase / Side Cover Dowel Pins for Honda GX200/GX390 & Clone Engines
Availability: In Stock.

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Description

Stock Hollow Crankcase / Side Cover Dowel Pins for Honda GX200, GX390 & Clone Engines


Maintain precise crankcase alignment and sealing with stock-style hollow crankcase dowel pins designed for Honda GX200, GX390, and popular small block and big block clone engines. These precision-machined dowels ensure accurate positioning of the side cover and gasket relative to the crankcase, helping preserve proper crankshaft alignment, gasket integrity, and overall engine reliability.


Ideal for OEM replacement or high-performance kart engines, these dowel pins improve side cover rigidity and reduce the risk of gasket failure or misalignment under load—critical for engines operating at sustained high RPM.


Key Features & Benefits

  • Precision Alignment – Accurately locates the crankcase side cover and gasket to the engine block
  • Improved Side Cover Rigidity – Enhances structural stability under load
  • Reliable Sealing – Helps prevent oil leaks and gasket movement during operation
  • Direct OEM Replacement – Matches factory dimensions for GX200- and GX390-style engines
  • Race Legal – Complies with AKRA and NKA side cover dowel pin rules


Dowel Pin Specifications

  • Length: 0.545"
  • Outer Diameter (O.D.): 0.314"
  • Inner Diameter (I.D.): 0.260"
  • Style: Stock hollow dowel pin


Fitment Compatibility

Small Block Engines

  • Honda GX200 / Clone (196cc)
  • Box Stock Project 196
  • Tillotson 196 / 212 / 225
  • Ducar 196 / 212 / 224
  • Predator 212 Hemi only
  • Predator 224 Non-Hemi
  • Ghost 212
  • Wildcat 223 / 240


Fitment Note:
Not compatible with Predator 212 Non-Hemi engines (uses a different dowel pin size).


Big Block Engines

  • Honda GX390
  • Predator 420
  • Wildcat 460


Race Legal – Rulebook Compliance:

AKRA 2020 Rules on Side Cover Dowel Pins:

Solid Dowel pin replacement for the side cover block .317" maximum diameter allowed (factory stock dowel pin is 8mm or .315") Dowel Pin Must remain in the factory position


NKA 2020 Rules on Side Cover Dowel Pins:

Solid dowel pins allowed.


Whether you're rebuilding your kart engine or fine-tuning for competition, these hollow dowel pins for GX200 and clone engines deliver the strength, reliability, and alignment you need.

FAQ

What do crankcase dowel pins do in a GX200 or clone engine?

Dowel pins align the crankcase side cover and gasket to the engine block, ensuring precise positioning and maintaining a strong seal. This prevents crankshaft misalignment and reduces the risk of gasket leaks under stress.


Are these dowel pins race legal?

Yes. These dowel pins are race legal under AKRA and NKA rules when installed in the factory location and within the allowed diameter limits.

  • AKRA: Allows dowel pin replacement up to .317" diameter (factory size is ~.315")
  • NKA: Allows solid dowel pins
  • These dowels remain within factory dimensions and placement requirements

Always confirm with your specific class rules.


Will these fit Predator 212 Non-Hemi engines?

? No. Predator 212 Non-Hemi engines use a different dowel pin size and are not compatible with this dowel pin.

? Predator 212 Hemi engines are compatible.


Why are crankcase dowel pins important?

Crankcase dowel pins:

  • Precisely locate the side cover and gasket
  • Help maintain crankshaft alignment
  • Reduce the risk of gasket failure and oil leaks
  • Improve side cover rigidity under high RPM and load

Improper or damaged dowel pins can lead to misalignment, bearing wear, and sealing issues.


Should dowel pins be replaced during an engine rebuild?

Yes. Dowel pins should be inspected during every rebuild and replaced if bent, worn, loose, or damaged. Fresh dowel pins help ensure proper alignment and sealing when reassembling the crankcase.


Do these dowel pins affect crankshaft end play?

Indirectly, yes. While dowel pins do not set end play, proper side cover alignment is critical for maintaining correct bearing positioning, which directly impacts crankshaft end play and longevity.


Are these OEM Honda dowel pins?

These are OEM-spec replacement dowel pins, manufactured to match factory dimensions and fitment for Honda GX200, GX390, and compatible clone engines.





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