Parts for your 2008 Nissan Maxima-Exhaust mount

2008 Nissan Maxima exhaust-mount: what it does and how to keep it sorted

Yes, the 2008 Nissan Maxima is fitted with exhaust mounts (also called exhaust hangers or insulators). Technical references confirm this: the Nissan Maxima 2004–2008 Factory Service Manual (EX section) illustrates rubber insulators supporting the exhaust system, and Nissan’s FAST/parts catalogue (Group 20 – Exhaust) lists Insulator–Exhaust under the 20651 part code family for this model. These rubber mounts suspend the exhaust from the underbody, keep the pipework centred, and prevent metal-to-body contact.

On the Maxima, the exhaust mounts do a simple but vital job. They isolate vibration and absorb movement as the engine twists under load and the vehicle flexes over bumps. By holding the system at the correct height and angle, they protect flanges, the flex joint, and oxygen sensors from undue stress. They also help keep the tailpipe tucked neatly away from the bumper so there’s no annoying rattles or melted plastic after a long summer run up the motorway.

Because they live under the car, these rubber insulators cop heat, road grime, salt spray, and the odd oil mist. Over time they harden, crack, or stretch. As part of regular servicing, they’re worth a look every 10,000–20,000 kilometres or annually—more often if the car tows, sees corrugated roads, or has an aftermarket exhaust.

• Common signs the mounts need attention:
  • Thumps or clunks from the rear over bumps
  • Extra vibration in the cabin at idle
  • Exhaust sitting crooked or too close to the bumper
  • Visible splits, perishing, or elongated holes in the rubber

Replacement is straightforward for a competent technician. Support the exhaust with a jack and timber block, then swap the insulators one by one so the system stays aligned. A shot of silicone spray helps the pegs slide out and in. It’s smart practice to replace mounts in sets along a section, not just the worst single piece, to keep the load even. Refit any brackets and tighten fasteners to the Factory Service Manual guidance, then check clearances around heat shields and the bumper before the road test.

Popular questions

How many exhaust mounts does a 2008 Nissan Maxima have?
Most cars in this generation use several mounts spaced along the mid-pipe and rear muffler area—typically three to five pieces. The exact count can vary with market spec and whether the car has a single or dual-outlet rear section. A quick look at the underbody or the Nissan parts catalogue will confirm the exact number on a given vehicle.

Can universal hangers be used on a 2008 Maxima?
Universal rubber hangers can work if the hole spacing, thickness, and rubber hardness (durometer) closely match the original. However, OEM-spec insulators usually fit cleaner, last longer, and keep the exhaust sitting at the correct height and angle—handy for preventing bumper contact and flex-joint strain.

Is it safe to drive with a broken exhaust mount?
It’s not ideal. A failed mount lets the system sag and swing, which can crack flanges, stress the flex joint, or rub on the body and heat shields. Noise will go up and, in worst cases, the tailpipe can heat the bumper. It’s best to sort a failed mount promptly to avoid larger repairs.