Parts for your 2011 Holden Colorado-Exhaust mount

2011 Holden Colorado Exhaust Mount

Exhaust mounts (rubber hangers/insulators) are absolutely used on the 2011 Holden Colorado. Technical sources that document this include the Holden Colorado RC Service Manual (2008–2012) under Exhaust System, which illustrates the muffler and tailpipe supported by rubber insulators, the Isuzu D‑Max TFR/TFS Workshop Manual for the same platform and years, listing “exhaust pipe support insulator” and hanger brackets, and the Holden Electronic Parts Catalogue (EPC) for RC Colorado, which catalogues “insulator, exhaust system” components at multiple points along the system. Together, these sources confirm the part is relevant and fitted on the 2011 model Colorado.

On a 2011 Colorado, the exhaust mount’s job is simple but critical: it suspends the exhaust system from the chassis while soaking up vibration. That keeps the pipework aligned, quiet and clear of the body, driveline and suspension. Good mounts protect welds and flanges from stress, prevent clunks and rattles over bumps, and help stop heat and fumes from creeping where they shouldn’t.

As part of regular servicing, it’s smart to eyeball the mounts every 10,000–15,000 km (or each service interval). The rubber can harden, crack or stretch with age, off‑road use, towing or coastal exposure. Replacing tired mounts is quick and inexpensive compared to the cost of repairing a cracked pipe or broken hanger bracket.

• Signs a mount needs attention: exhaust knocking the chassis or towbar, sagging tailpipe, extra cabin vibration at idle, visible cracks or perished rubber, or fresh rub marks on the pipe or body.
• Replacement tips: support the exhaust with a stand, spray silicone on the pins to slip the old insulators off, and fit like‑for‑like heat‑rated rubber or quality polyurethane. Reuseable metal hangers should be checked for bends or corrosion.
• After fitting: confirm clearances to the body, leaf springs, spare wheel and towbar, ensure the system sits neutral (not in a bind) and that all clamps and brackets meet workshop torque specs.

Many Colorados will have several mounts—from the front pipe area, around the muffler, and near the tail section—so consider doing them as a set. For hard‑working utes that tow or see corrugations, upgrading to heavy‑duty mounts can add durability while still keeping NVH in check.

Popular questions

How many exhaust mounts does a 2011 Holden Colorado have?
Most RC Colorados run three to five rubber mounts depending on cab, tray/tub, engine and exhaust layout. You’ll typically find one forward of the muffler, one near or on the muffler, and one or two at the tail section. Always confirm against the vehicle and the EPC for your VIN.

What’s the easiest way to spot a bad exhaust mount?
Listen for a clunk over bumps or a buzz at idle, then look for a droopy tailpipe and cracked or perished rubber. Fresh scrape marks on the pipe or body are another giveaway that the exhaust is touching where it shouldn’t.

Can polyurethane exhaust mounts be used on a 2011 Colorado?
Yes, quality polyurethane mounts can be a good option if the ute tows or sees off‑road use. They’re generally firmer and more durable than standard rubber. Just match the size and style to the original, and be mindful that very stiff mounts can marginally increase NVH.