Вставное седло выпускного клапана, увеличенный размер Caterpillar 1490246

An Oversize Exhaust Valve Seat Insert provides a compatible seating surface for different types of exhaust valve materials. It withstands high temperatures generated by the combustion process. It resists heat transfer and helps dissipate heat away from the valve, preventing overheating and potential valve failure. It can withstand the repeated impact and friction caused by the valve opening and closing, reducing wear.Attributes:• Provide a larger bore diameter than the original guide of 0.508mm for the air gap• Helps maintain proper valve clearance and valve timingApplications:An Oversize Exhaust Valve Seat Insert forms a tight seal with the exhaust valve, preventing the escape of combustion gases from the combustion chamber. This seal ensures optimal engine performance and helps maintain the correct compression ratio.