K&S Technologies 52-207 is a top end gasket set for Honda TRX250X and TRX300EX engines, used during top end engine rebuilds to replace the gaskets, washers, O-rings and seals disturbed during cylinder head, cylinder and valve train service.

Features

• Supplied for top end engine rebuild work


• Includes gaskets, washers, O-rings and valve stem seals


• Includes model-specific exhaust pipe gaskets for TRX250 and TRX300 applications

Kit Contents

• 1 x Cylinder head gasket


• 1 x Cylinder base gasket with silicone line coating


• 2 x Tappet cover gaskets


• 1 x Cam chain tensioner hole gasket


• 4 x Valve stem seals


• 1 x Exhaust pipe gasket for TRX250 applications only


• 1 x Exhaust pipe gasket for TRX300 applications only


• 4 x Valve guide O-rings


• 1 x Cylinder head O-ring


• 2 x Camshaft O-rings


• 1 x Cylinder O-ring


• 5 x Cylinder head sealing washers


• 3 x Cylinder head washers


• 1 x Cam chain gasket for 1987-1988 TRX250X applications only


• 1 x Cam chain sealing washer for all applications except 1987-1988 TRX250X

Specifications

• Valve guide O-ring size: 10 x 1.6 mm


• Cylinder head O-ring size: 35.4 x 2.9 mm


• Camshaft O-ring size: 7.7 x 2.5 mm


• Cylinder O-ring size: 78.3 x 2 mm


• Cylinder head sealing washer size: 6 mm


• Cylinder head washer size: 8 mm


• Cam chain sealing washer size: 6 mm


• Total pieces: 29

Cross-Reference OEM Part Numbers

• 
  

  Athena P400210600265

  
  

Vehicle Fitments

• Honda TRX250X: 1987-1988, 1991-1992


• Honda TRX300EX: 1993-2008