This Caterham throttle cable has been specially made to match the original part. The plastic square fitting will clip into the throttle body holder. The pedal box end has a 3D printed part that clips into the pedal box. The nipple on both ends match the original part. The short type cable is typically used on Rover RHD models. The longer cable is typically used on Duratec and Sigma models
 
There has been a further update to new stock with these cables. The inner wire has been increased in diameter to make it stronger than the original. The 3D printed end is now produced in an alternative plastic which has greater heat resistance to under bonnet temperatures.
 
Additionally, the longer cable is now available with a protective heat sleeve. This is fitted during production enabling a close fit superior to retrofitted Velcro type heat insulation. The sleeve is capable of resisting a short max temp of 250 ℃. Use this option if your model routes the cable near the exhaust manifold.