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This Intake Exhaust Valve Seal Spring Kit Compatible with the following models:
1999 Sportrax 400 TRX400EX 2x4
2000 Sportrax 400 TRX400EX 2x4
2001 Sportrax 400 TRX400EX 2x4
2002 Sportrax 400 TRX400EX 2x4
2003 Sportrax 400 TRX400EX 2x4
2004 Sportrax 400 TRX400EX 2x4
2005 Sportrax 400 TRX400EX 2x4
2006 Sportrax 400 TRX400EX 2x4
2007 Sportrax 400 TRX400EX 2x4
2008 Sportrax 400 TRX400EX 2x4
2009 TRX400X 2x4
2012 TRX400X 2x4
2013 TRX400X 2x4
2014 TRX400X 2x4
1996 Dirt Bike XR400R
1997 Dirt Bike XR400R
1998 Dirt Bike XR400R
1999 Dirt Bike XR400R
2000 Dirt Bike XR400R
2001 Dirt Bike XR400R
2002 Dirt Bike XR400R
2003 Dirt Bike XR400R
2004 Dirt Bike XR400R
OEM Part Number:
14721-KCY-670
Package:
Intake Valves *2
Exhaust Valves*2
Inner Springs *4
Outer Springs *4
Valve Spring Seats *4
Valve Cotters*8
Valve oil seal *4
Emily Laan
Reviewed in the United States on March 6, 2025
The springs seemed stiff when I installed them. It ran but after a hour of running the new cam’s lobes were worn down and the rocker arms were scored and had to be replaced. I swapped back to original valve springs.
Oscar Vogel Puga
Reviewed in the United States on September 3, 2024
Todo tal cual en la descripción del producto, la caja venía con todos sus componentes.
Liberty Rose
Reviewed in the United States on September 29, 2024
Probably less than 10 hours. Started smoking again. Thought it was piston rings again but come to find out the valve springs broke and l chewed up the valve seals. Crossing fingers that none of the parts got into the bottom end and at least get picked up in the filter. Grrrr.
Juan Manuel
Reviewed in Mexico on September 23, 2024
Compatible con Vento Lucky 7Buena calidad y le quedo perfectamente a mi moto, totalmente recomendable
Lonzo S.
Reviewed in the United States on March 20, 2024
So I purchased these because I was doing a top end rebuild on my 2007 Honda Trx400ex. I have replaced everything as I should've and boom, my problems with blueish white smoke from the exhaust problems has come to an end. This kit here is a life saver and a game changer. Thanks for such great products!
Jordan H
Reviewed in the United States on October 15, 2024
Engine hasn't even ran a full hour. The coating thats on them is flaking off. Wouldn't waste your money spend the money for oem or kibblewhite. Not even a month old they leak and smoke also. The valve springs are too big and rub the side of the case. These are a total joke dont buy!
Conner Strickrodt
Reviewed in the United States on January 4, 2023
Exactly what I needed
Chris F
Reviewed in the United States on August 8, 2022
So unfortunately I got 3 intake and 1 exhaust valve. I was able to refurbish one of my old exhaust valves just take a look before you pull apart like me.
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