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.
Crankshaft Oil Seal for Honda GX390
Crankshaft oil seal fits Honda GX340, GX390, 420cc and 460cc engines. Use this seal on both the PTO or Flywheel side. Engine requires two per engine so order a quantity of two per engine.
Copper Head Gasket, Honda GX390, 460cc, 500cc Big Block
Copper head gasket available in a variety of bore and thickness ranges for the big block Honda GX390, 460cc, 500cc engines. Select the gasket below that fits your build:
Our Price: $18.00
Sale Price: $12.00
Head Gasket GX390 MLS
Multi Layer Steel head gasket that fits the Honda GX390 engine. Gasket has 89mm bore to fit the stock bore size on the Honda GX390.
Magnetic Oil Drain Plug, Honda GX390
Bullfrog Performance Products magnetic oil drain plug for Honda GX390 and big block clones. Billet aluminum drain plug includes the copper gasket. Our plug is a nice upgrade to catch any signs of engine trouble by catching the magnetic particles that may be in your engine oil.
Crankcase Cover Gasket and ARP Bolt Kit Honda GX340, GX390
Crankcase cover gasket and ARP side cover bolt fastener kit for the Honda GX340 and GX390 side cover. Changing out a cam or making internal repairs or just plain building a new engine from scratch then you will need our kit to get maximum seal and clamp load your side cover needs to hold the bottom end together.