Honda Civic Si 2012-2015 2.4L Engine and Transmission Mount Kit

The K24 in the ninth-generation Civic Si and the ILX 2.4 makes its torque high in the rev range, and it leans hard on the mounts when you load it in second and third gear. Worn mounts on these cars show up as a clunk on a quick shift, a thump when you get on and off the throttle, and a buzz through the shifter and floor at idle. A torn transmission mount is a common cause of notchy, imprecise shifting complaints on the 6-speed that get blamed on the synchros.

This kit replaces the left front engine mount, the solid front upper and front lower engine shock mounts, and the transmission mount. It fits the 2012-2015 Honda Civic 2.4L (Si) and the 2013-2015 Acura ILX 2.4L. Cross references include 50820-TR7-A01, 50850-TR7-A01, 50880-TR7-A01, 50890-TR7-A01, A65043, A65047, A65083, A65084, EM7168, EM7169, EM7177, EM7258, 9743, 9744, 9810, 9841.

Support the engine with a jack and a block of wood under the oil pan, then change one mount at a time so the drivetrain stays located. Snug the bolts, let the car down on its wheels, then torque everything so the mounts settle in their natural position. Check the shift feel and the throttle on-off clunk on the test drive.