Hasport CL9RR Rear Motor Mount, 03-07 Accord / 04-08 TSX

Hasport CL9RR Rear Motor Mount, 03-07 Accord / 04-08 TSX

On the CL9 TSX and the 03-07 Accord (CM chassis), the rear mount is the one that gives up first. The factory rear mount is fluid filled, and when it tears you feel it: a clunk on clutch engagement, the whole K24 rocking under throttle, wheel hop on hard launches. The Hasport CL9RR rear motor mount replaces that failure-prone stock unit with a welded steel bracket and a polyurethane bushing that will not tear, in your choice of four urethane durometers plus a solid billet option.

What It Is and Why It Works

This is a direct replacement for the stock rear engine mount on manual transmission K24 cars: the 04-08 Acura TSX (K24A2) and the 03-07 Honda Accord four cylinder with the manual gearbox. It bolts into the factory location. Because the bushing is urethane instead of a fluid-filled rubber damper, the engine stops rotating under load. Less rotation means more of your power actually reaches the pavement, shifts feel more direct, and the wheel hop that hammers axles on hard launches settles down. Hasport also gave the CL9RR a low profile design that opens up clearance under the engine, which matters if you are running or planning a turbo setup on your K24.

One honest note: this covers the rear position only. If the rest of your mounts are original with well over 100k miles on them, inspect the front and side mounts while you are under the car. The rear takes the most abuse on these chassis, though, and replacing it alone transforms how a tired car drives.

Specs

Available Options

Fitment

Automatic cars and the V6 Accord use different rear mounts and are not covered by this part.

What to Know Before You Buy

Pick the durometer for the car you actually drive. 62A is the right call for a daily driven TSX or Accord: after break-in it is barely noticeable, mostly a light buzz at idle with the A/C on. 70A adds real vibration, and owners who daily it report buzzing interior trim and a shaky rear-view mirror at idle. Save 88A and 94A for track cars and the solid 6061 for race cars, full stop. Expect any urethane mount to feel harsh for the first 1,200 to 1,500 miles while the bushing seats; that is normal, not a defect. And if your current rear mount is torn, do not wait on it. Every hard launch with a dead rear mount beats on the remaining mounts, the exhaust hangers, and the axles.