Notes: 144942 COUNTERPLATE Diff. locking Female SP. 1. is original CARRARO product. 144942 COUNTERPLATE Diff. locking Female SP. 1.5 is commonly used in transmissions/axles/engines 641372, 641373, 641374, 641391, 641392, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849