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Focus ST Rear motor mount

Your Focus ST

Pick your year to see what fits.

Every US Focus ST (2013–2018) is a hatchback with a 6-speed manual and the same 2.0L EcoBoost engine, so the same parts fit every year.

Less wheel hop
Medium$190–$2001–1.5 hrs
All Focus ST mods

Why do it

The stock rear mount is soft, so the engine rocks and the front tires hop when you launch. A stiffer mount fixes it with only a little more vibration.

Tools you'll need

Parts to buy

Double-check fitment before buying.

Before you start

  • The COBB mount fits every 2013–2018 Focus ST.
  • Expect a little more vibration at idle. That's normal with a stiffer mount.

Video guide

Focus ST COBB rear motor mount install
by CJ Pony Parts on YouTube

The exact COBB mount we list, on a 2015 Focus ST.

Watch the whole video

Steps

  1. Raise the front

    • Raise the front and support it on jack stands, or use a lift.
    Watch this step (1:11–1:30)

  2. Remove the under-cover

    • Remove the plastic cover under the engine to reach the mount. It sits low, toward the back of the engine.
    Watch this step (1:27–2:04)

  3. Remove the brackets in the way

    • To reach the mount, remove the downpipe bracket and the extra bracket next to it. Start with the rear nut.
    • Keep track of every nut and bolt. They all go back.
    Watch this step (2:04–3:21)

  4. Unbolt the mount's front arm

    • Remove the bolt at the front, the one at the back, and the bolt under the stud.
    • Then remove the cross bolt.
    Watch this step (3:21–4:15)

  5. Remove the stock mount

    • Tilt the engine slightly by hand to reach the last bolt at the back.
    • Remove the main mount bolt and pull the stock mount out.
    Watch this step (3:57–4:40)

  6. Fit the new mount

    • Clean the area where the mount sits.
    • The new mount is a tighter fit. Work it in until the bolt hole lines up and start the bolt by hand.
    Watch this step (4:38–5:28)

  7. Reinstall the bracket and torque the bolts

    • Refit the bracket with its bolts and two studs. The video torques these to 45 ft-lb.
    • Thread in the cross bolt straight by hand and torque it (75 ft-lb in the video), then the back bolt (70 ft-lb). Check COBB's instructions for your exact specs.
    Watch this step (5:11–6:55)

  8. Refit the downpipe brackets and cover

    • Put both downpipe brackets and their six nuts on loosely first. Tighten the two main ones, then the other four.
    • Refit the under-cover.
    Watch this step (6:39–8:30)

How to know it worked

Did this guide work for you?

Safety first

  • Park on flat ground, set the parking brake and chock the wheels.
  • Never get under a car held up only by a jack. Use jack stands.
  • Let the engine and exhaust cool first.
  • Disconnect the battery before unplugging electrical parts.
  • Wear safety glasses.
  • If something doesn't match your car, stop and ask a shop.

Follow your part's instructions and your service manual's torque specs.