Honda Accord 2003-2007 2.4L Auto Trans Mount Kit 4-Piece

A four-piece mount set for the 2003-2007 Honda Accord with the 2.4L four-cylinder and the 5-speed automatic. It includes the front right engine mount, the rear engine mount, and the rear and upper automatic transmission mounts, both supplied with brackets. It crosses to A4509, A4516, A4517 and A4542 and replaces Honda numbers including 50810-SDA-A02, 50820-SDA-A01, 50860-SDA-A02 and 50870-SDA-A02.

On this Accord the rear engine mount and the upper transmission mount carry most of the torque reaction. When they wear out you get a clunk into drive and reverse, vibration at a stop in gear, and a knock when you get on and off the throttle. That clunk is often mistaken for a bad transmission or a worn axle. With the brackets already on the transmission mounts, the swap goes quicker than pressing old brackets over.

2.4L with automatic transmission only. The V6 and the manual cars use different mounts.

On the job: support the engine from above or with a jack and a block of wood under the oil pan before any mount comes out. Change one mount at a time, leave the through-bolts snug until every mount in the set is in, then let the drivetrain settle at rest and torque everything. Tightening a mount while the engine is jacked sideways preloads the rubber, and a preloaded mount tears early.