VITON valve stem seal for all G60 and G40 engines. These valve stem seals offer the following advantages: -High temperature resistance -Improved sliding properties -Longer service life If new valves are used, the guides must also be replaced! Price for 8 pcs. Both 8mm and 7mm valves are available for G40 engines. Please measure beforehand. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com