Notes: 716019 TEFLON SEAL RING PUSH ROD (142923) Ø55 is original CARRARO product. 716019 TEFLON SEAL RING PUSH ROD (142923) Ø552 is commonly used in transmissions/axles/engines 643171, 643171, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849