Valve Guide 993 - Exhaust - 1st Oversize - 8 x 13.26 mm![OEM Supplier OEM Supplier](/adbimage/120701/w320/oem-supplierpng.jpg)
As valve guides age, they lose their ability to locate the valve to the valve seat. That can create a loss of performance due to the ineffective seal of the combustion chamber. Be sure to replace ...
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