Parts for your 2005 Toyota Highlander-Exhaust mount

2005 Toyota Highlander exhaust-mount

Yes, the 2005 Toyota Highlander uses exhaust mounts (also called exhaust hangers or insulators). Technical sources confirm this fitment, including the Toyota Repair Manual via Toyota Technical Information System (TIS) under the Exhaust Pipe Removal/Installation procedures, the Toyota Electronic Parts Catalog (EPC) listing “Insulator, Exhaust Pipe Support (No.1/No.2)” for 2005 Highlander variants, and general workshop references such as the Haynes manual covering Highlander/RX exhaust servicing. These references describe rubber insulators and brackets that suspend the exhaust from the underbody.

On a 2005 Highlander, the exhaust mounts support the weight of the front pipe, centre section/resonator and rear muffler while isolating vibration so the cabin stays quiet. They keep the system aligned, maintain clearance from the body and heat shields, and allow for thermal expansion so welds and joints aren’t stressed. When the insulators perish or tear, the system can sag, rattle over bumps, or knock against the subframe—none of which is ideal for a long-distance family SUV.

Owners can expect three to five mounts along the system, depending on engine and drivetrain. The insulators are simple rubber loops that slide over metal pegs, brackets and hooks are bolted to the body and exhaust sections.

For servicing, it’s smart to check the mounts at every routine service interval (around 10,000–15,000 km):

• Look for cracked, perished or torn rubber, elongated holes, or a visibly low tailpipe.
• Check for rusted or bent hangers and loose brackets.
• Listen for thuds or rattles at idle or over corrugations.

Replacement is straightforward with the exhaust fully cool and the vehicle safely supported. Support the muffler with a stand, then lubricate the insulators with soapy water or silicone spray and lever them off the pegs. Dedicated exhaust-hanger pliers make light work of it. Fit new OEM or high-quality aftermarket insulators, re-seat the system so there’s even clearance to heat shields, and tighten any bracket fasteners to the specifications in the Toyota manual. It’s often worth replacing mounts as a set—if one has failed, the others are usually not far behind.

Keeping the exhaust properly mounted prevents stress fractures, protects the catalytic converter and O2 sensor wiring from strain, and keeps the Highlander quiet and compliant on Aussie and Kiwi roads.

• Avoid petroleum grease on rubber, silicone-based products are fine.
• After replacement, road-test for knocks and re-check clearances.

Popular questions

How many exhaust mounts does a 2005 Highlander have and where are they?
Most 2005 Highlanders have three to five mounts: typically one near the front pipe, one or two around the centre/resonator area, and one or two at the rear muffler/tailpipe. Exact count varies with engine and AWD/2WD layouts.

What are the signs an exhaust mount needs replacing?
Common signs include a drooping tailpipe, rattles or knocks over bumps, excessive vibration at idle, and visible cracks or tears in the rubber insulators. If a mount fails completely, the exhaust can shift and contact the body or heat shields.

Is it safe to drive with a broken exhaust mount?
Short distances may be possible, but it’s not recommended. A loose exhaust can stress joints, damage the catalytic converter, melt nearby components, or create fumes entering the cabin. Best practice is to secure it and replace the faulty mount promptly.