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Insulator Gasket for Honda GX390 Insulator Gasket for Honda GX390

Insulator gasket for Honda GX390 engines.

Our Price: $3.25
Copper Exhaust Header Gasket for Honda GX390 Copper Exhaust Header Gasket for Honda GX390

Bullfrog Performance Products copper exhaust header gasket for Honda GX240, GX270, GX340, GX390, GX610, GX620 and GX690.  Will also fit Predator 420cc engines and many other big block clone engines.

Our Price: $5.00
Fuel Filter, 90 Degree 1/4" OD Barbs Fuel Filter, 90 Degree 1/4" OD Barbs

Fuel Filter, 90 Degree 1/4" OD Barbs. Fits 1/4" ID fuel line

Our Price: $6.10
Foam Air Pre-Filter 3.5" ID x 5" Length Foam Air Pre-Filter 3.5" ID x 5" Length

Foam pre-filter that fits our 500-1100 performance air filter.

Our Price: $6.58
Foam Air Pre-Filter for Mikuni 38mm SBN Foam Air Pre-Filter for Mikuni 38mm SBN

Foam air pre-filter for our Mikuni 38mm Super BN air filter.

Our Price: $8.00
Main Jet Performance Upgrade Kit For GX390 and Predator 420cc Main Jet Performance Upgrade Kit For GX390 and Predator 420cc

Our main jet kit is a must for the Honda GX390, Predator 420cc engines that have had the performance K&N style air filter setup installed on the engine. Maximizes the engine for best performance and air fuel ratio.

Our Price: $8.14
Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Red Color

Our Price: $8.30
Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Green Color

Our Price: $8.30
Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Blue Color

Our Price: $8.30
Insulator with Pulse Fitting for Honda GX390 Insulator with Pulse Fitting for Honda GX390

Insulator with pulse fitting for Honda GX390 engines.

Our Price: $8.95
Air Pre-Filter Outerwears 3 1/2" ID Air Pre-Filter Outerwears 3 1/2" ID

Outerwears air pre-filter for our 500-1100 performance air filter.

Our Price: $11.95
Fuel Filter, 90 Degree 1/4" OD Barbs (Pack of 3) Fuel Filter, 90 Degree 1/4" OD Barbs (Pack of 3)

Fuel Filter, 90 Degree 1/4" OD Barbs. Fits 1/4" ID fuel line. Pack of 3 filters!

Our Price: $12.95
Outerwears Air Pre-Filter for Mikuni 38mm SBN Outerwears Air Pre-Filter for Mikuni 38mm SBN

Outerwears air pre-filter for our Mikuni 38mm Super BN air filter.

Our Price: $14.00
Air Filter, Angled 4" Long x 2 7/16" ID Air Filter, Angled 4" Long x 2 7/16" ID

Small engine racing air filter for use in many applications including go karts, mini bikes and many other off road applications.

Our Price: $14.95
Gasket Set, Honda GX390 Gasket Set, Honda GX390

Gasket set for Honda GX390 engines.

Our Price: $15.00
Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color (2 Pack) Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color (2 Pack)

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Red Color (sold as a pair)
Save $$$'s with this 2 pack vs. buying in singles!

Our Price: $15.95
Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color (2 Pack) Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color (2 Pack)

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Green Color

Pack of 2 fuel filters!

Save $$$'s with our 2 pack vs. buying individually!

Our Price: $15.95
Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color 2 Pack Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color 2 Pack

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Blue Color

Pack of 2 filters!

Save $$$'s with our pack of 2 filters vs. buying individually!

Our Price: $15.95
Air Filter, 15 Degree Angled 6" Length x 2 7/16" ID Air Filter, 15 Degree Angled 6" Length x 2 7/16" ID

Performance air filter that fits Predator 212cc, Clone and Big Block applications with an air filter adapter with 2 7/16" diameter adapter.

Our Price: $16.95
Air Filter, 10 Degree Angled 4" Length x 2 3/4" ID Air Filter, 10 Degree Angled 4" Length x 2 3/4" ID

Small engine racing air filter for use in many applications including go karts, mini bikes and many other off road applications.  Will fit our 38mm Super BN air filter adapter for the big block Honda GX390.

Our Price: $17.50
Aftermarket Fuel Pump Round Walbro Style Aftermarket Fuel Pump Round Walbro Style

Aftermarket Walbro Round style fuel pump.  This is a pulse type fuel pump.  Has one inlet and one outlet.  Use this fuel pump on the Briggs & Stratton Animal, Predator 212cc, Clone 196cc and big block applications.

Our Price: $18.95
K&N Pre-Filter for 4" Tall Racing Style Air Filter K&N Pre-Filter for 4" Tall Racing Style Air Filter

K&N Pre-Filter for 4" Tall Racing Style Air Filter

Our Price: $23.95
K&N Pre-Filter for 6" Tall Racing Air Filters K&N Pre-Filter for 6" Tall Racing Air Filters

K&N Pre-Filter for 6" Tall Racing Air Filters

Our Price: $25.00
Air Filter Adapter for Mikuni 38mm Super BN Carburetor Air Filter Adapter for Mikuni 38mm Super BN Carburetor

Bullfrog Performance Products air filter adapter for Mikuni 38mm Super BN carburetor.

Your Price $27.50
Fuel Pump, Mikuni OEM Single Outlet Fuel Pump, Mikuni OEM Single Outlet

Mikuni OEM single outlet fuel pump.  Fits 1/4" id fuel line.

Our Price: $29.95
Air Filter Adapter Kit Honda GX390 Air Filter Adapter Kit Honda GX390

This air filter adapter will fit the Honda GX340, GX390, clone GX390 and Predator 420cc engines. This adapter will fit the racing air filters with 2 7/16" ID. Adapter comes with the mounting gasket, nuts and long carburetor studs to fit any of the Honda GX390 or 390cc clone engines.

Our Price: $29.95
Intake Manifold, Billet Aluminum Intake for Honda GX390 Intake Manifold, Billet Aluminum Intake for Honda GX390

Bullfrog Performance Products billet aluminum intake manifold adapts the Mikuni 32mm, 33mm Pumper and 34mm carburetors to your Honda GX390 big block and 390cc big block clone engine.

Our Price: $30.00
Header Kit, GX390 Mud Motor Header w/Muffler Straight Header Kit, GX390 Mud Motor Header w/Muffler Straight

Mud Boat header kit that fits the big block Honda GX240, GX270, GX340, GX390, Predator 420cc and 460cc engines. Our header kit features 1 1/4" O.D. header tube and is TIG welded for best durability. Our header kit includes the following components:

  • Straight header tube to fit mud motor specifically
  • Our custom TIG welded header flange
  • Screw on muffler

Our Price: $36.00