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EC Briggs V-Twin 90° 2-Barrel Billet Adaptor
4040 EC 90° Two Barrel Billet Adaptor
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EC Briggs V-Twin 90° 2-Barrel Billet Adaptor

Part Number: 4040
Online Price: $60.00
4040 EC 90° Billet Adapter for Briggs Intek V-Twin
Availability: In Stock.

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Description

4040 EC Briggs V-Twin 90° 2-Barrel Billet Aluminum Adapter | Horizontal Air Filter Conversion for Intek V-Twins


Upgrade your Briggs & Stratton Intek V-Twin engine with the 4040 EC 90° 2-Barrel Billet Aluminum Adapter, precision-engineered to improve airflow positioning and maximize performance. This 90-degree adapter repositions your air cleaner/filter from a vertical to a horizontal orientation, providing critical clearance from the engine and enabling the use of larger, more efficient air filters.


Designed specifically for vertical shaft Briggs & Stratton Intek V-Twin engines, this billet aluminum adapter is ideal for racing or performance applications where space and airflow optimization matter.


To complete the setup, the 4040 adapter requires the EC FCRP-4056 filter adapter for compatibility with our high-performance X-1 or X-2 Air Filters (sold separately).


Key Features:

  • 90° Airflow Repositioning: Turns air inlet from vertical to horizontal for better clearance and intake routing
  • Precision CNC Machined: Made from high-quality billet aluminum for strength, durability, and a perfect fit
  • Optimized for Performance: Allows for improved airflow with EC’s X-Series air filters
  • Custom Fit for Intek V-Twin Engines: Fits only Briggs & Stratton Intek V-Twin (vertical shaft) engines
  • Installation Note: May require modification of the plastic flywheel shield/housing to ensure proper fitment


Fitment Notes:

  • Fits: Briggs & Stratton Intek V-Twin (vertical shaft only)
  • Does NOT fit: Other V-Twin or horizontal shaft engines
  • Requires: EC FCRP-4056 filter adapter for X-1 or X-2 air filter compatibility
  • Modification Needed: Plastic flywheel shield may require trimming for clearance


Why Choose EC’s 4040 90° Adapter?

This adapter is the ideal solution for racers, builders, and performance tuners looking to maximize space and airflow on Intek V-Twin builds. Whether you're dealing with space limitations or optimizing your intake setup, this billet aluminum adapter delivers a clean, durable, and functional solution.

FAQ

1. What does the 4040 EC adapter do?

It converts the air inlet on a vertical shaft Briggs Intek V-Twin engine from vertical to horizontal or 90°, allowing for better air filter clearance and performance airflow routing.


2. What engines is the 4040 adapter compatible with?

This adapter is specifically designed for Briggs & Stratton Intek V-Twin engines with vertical shafts. It is not compatible with horizontal shaft or non-Intek V-Twin models.


3. Do I need any additional parts to use this adapter?

Yes, you will need the EC FCRP-4056 filter adapter to install EC’s X-1 or X-2 high-performance air filters. These parts are sold separately.


4. Will it fit without any modifications?

Some installations may require modifying the plastic flywheel shield/housing to accommodate the adapter’s fitment. This is typically only necessary on Intek V-Twin models.


5. Is this made from plastic or metal?

The adapter is CNC machined from billet 6061 aluminum, offering superior durability, precision fit, and a professional-grade appearance.


6. Is this adapter legal for racing use?

In most racing classes where air filter repositioning is allowed, this adapter can be used. Always check your class rulebook before installing for competitive use.

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