For Predator 301cc 420cc 389cc 13hp 15hp Upgrade Air Filter Adapter Jet Kit

Air Filter Adapter Jet Kit for Predator 301cc 420cc 389cc Engines

This air filter adapter and jet kit lets you fit a high-flow air filter and rejet the carburetor on Predator 301cc, 389cc, and 420cc 13hp and 15hp engines so the fuel curve matches the extra airflow.

Overview

This air filter adapter and jet kit is made for Predator 301cc, 389cc, and 420cc 13hp and 15hp engines, giving the carburetor more airflow and the fuel delivery to match it. The adapter bolts to the carburetor intake so a cone or clamp-on filter can be installed. The included jets let you tune the mixture so the engine runs clean instead of lean after the filter swap.

Built For Performance

• Adapter plate bolts to the carburetor intake for a clamp-on filter
• Includes main jets in multiple sizes for carburetor tuning
• Aluminum adapter construction resists heat and warping
• Compatible with common cone and clamp-on style air filters
• Gaskets and mounting hardware included for a direct install

Fits These Machines

• for Predator 301cc engines
• for Predator 389cc engines
• for Predator 420cc engines
• for 13hp and 15hp Predator engine applications

On-The-Job Use

• Go-karts and buggies running Predator 420cc or 301cc engines
• Pressure washers and generators needing a serviceable air filter
• Mini bikes and yard karts with carburetor rejetting
• Shop builds where the stock air box gets in the way

Specs At A Glance

Good To Know

Q: Do I need to rejet after fitting the adapter and filter? A: Yes, adding airflow without matching fuel will make the engine run lean and hot, which is why jets are included. Start with the larger jet and step down until the plug reads correctly.

Q: Will the adapter fit my specific Predator model? A: It is listed for 301cc, 389cc, and 420cc Predator engines, but carburetor styles can vary between production runs. Check your engine model and serial number before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.