Notes: 135783 COMPRESSION SPRING 1.8-16.1-27 is original CARRARO product. 135783 COMPRESSION SPRING 1.8-16.1-275 is commonly used in transmissions/axles/engines 138094, 138628, 138670, 138670, 138628, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849