Parts for your 2017 Toyota Mark x-Exhaust mount

2017 Toyota Mark X Exhaust Mounts

Exhaust-mounts (also called exhaust hangers or “insulators, exhaust pipe support”) are fitted to the 2017 Toyota Mark X. This isn’t a part that’s omitted on the GRX130/GRX133 series, the Toyota Electronic Parts Catalogue lists several rubber support insulators along the system, and the Toyota Repair Manual includes removal/installation steps for these supports in the Exhaust Pipe section. Those technical sources make it clear the Mark X relies on multiple exhaust-mounts to suspend and isolate the exhaust from the body.

On the 2017 Mark X, the exhaust-mount’s job is simple but vital: hold the pipes and mufflers at the right height, keep them from knocking the floor or subframes, and soak up vibration so the cabin stays quiet. The rubber insulators also let the system move a touch as it heats and cools, protecting welds, flanges, and the catalytic converter from stress. When they’re healthy, you won’t notice them, when they’re tired, you’ll hear clunks over bumps and feel extra buzz through the cabin.

Because they live right beside hot pipes, exhaust-mounts cop heat, road grime, oil mist, and ozone. Over time the rubber can harden, crack, or stretch. Typical signs on a Mark X include a droopy tailpipe, rattles on start-up, or a thunk on take-off as the system shifts. It’s worth giving them a look at each service (about every 12 months or 15,000 km). Check for splits, perished rubber, or elongated holes. Also eyeball the brackets and hangers on the chassis and mufflers for bent tabs or corrosion.

Replacement is straightforward. Support the exhaust with a jack and a block of wood, swap the insulators one at a time, and use a dab of silicone spray to slide the new mounts on. After fitting, confirm there’s even clearance around the rear bumper, crossmember, driveshaft area, and heat shields. If you’ve fitted an aftermarket system, consider heavy‑duty or polyurethane mounts to control movement, for a daily driver, quality OEM‑style rubber maintains comfort. Avoid solid mounts on road cars as they can transmit noise and vibration into the cabin.

If an exhaust joint keeps leaking or a hanger keeps failing, it’s a hint the system is misaligned—loosen the joints, realign with all mounts seated squarely, then re‑tighten. Fresh hardware and secure heat shields finish the job nicely.

• Service tip: inspect mounts whenever the car’s on a hoist—easy win for NVH and exhaust longevity.
• Best practice: replace mounts in pairs/sets if several look the same age.

Popular questions about 2017 Toyota Mark X exhaust-mounts

How do you know the exhaust-mounts need replacing on a 2017 Mark X?
Look for sagging or off‑centre tailpipes, knocks over bumps, or new vibrations at idle. Underneath, perished rubber, cracks, or stretched holes in the insulators are clear signs. If the exhaust taps a heat shield or crossmember, the mounts are likely tired or the system’s misaligned.

Rubber or polyurethane mounts—what’s better for a Mark X?
OEM‑style rubber keeps factory refinement and is spot on for daily use. Polyurethane is firmer and can reduce movement on performance setups, but it can pass a bit more vibration into the cabin. For most road cars, go quality rubber, for spirited driving or aftermarket exhausts, consider a firmer option.

Can a home mechanic replace the mounts?
Yes—support the exhaust, work safely on stands, and swap one insulator at a time. Silicone spray helps. If the system is heavy, seized, or misaligned, a workshop hoist and a tech’s eye can save time and prevent stress on joints and sensors.