Parts for your 1990 Nissan Primera-Exhaust mount

1990 Nissan Primera exhaust-mount: what it does and when to replace it

The 1990 Nissan Primera (P10) absolutely uses exhaust mounts (also called exhaust hangers or insulators). This is documented across technical sources including the Nissan Primera P10 Factory Service Manual (section EX – Exhaust System), the Nissan FAST electronic parts catalogue for P10 models, the Haynes Nissan Primera 1990–2002 workshop manual, and aftermarket catalogues from exhaust suppliers that list dedicated rubber hangers for the P10. On this car, the exhaust system is suspended from the body by several rubber insulators and brackets to control height, alignment, and vibration.

On a 1990 Primera, the exhaust mounts are simple but critical bits of kit. They’re the rubber insulators and associated brackets that hold the front pipe, centre section, and rear muffler in place while soaking up engine and road vibrations. By letting the system move a touch, they stop knocks and drumming inside the cabin, keep the pipework clear of the subframe and bodywork, and help protect welds and flanges from stress. Most P10s run three to five rubber mounts depending on engine (GA16 or SR20) and body style, plus a front pipe support bracket.

As part of regular servicing, it pays to eyeball the exhaust mounts every 10,000–15,000 kilometres or at each oil change. Look for perishing, splits, elongation of the holes, or a droopy tailpipe. If the exhaust is clunking over bumps, rattling at idle, or sitting off-centre in the bumper cut-out, chances are one or more mounts have given up.

Replacement is straightforward with the car safely on stands. Support the exhaust, then pop the old rubbers off the pegs, a dab of silicone spray helps. Fit quality OEM-style insulators or reputable aftermarket equivalents. It’s smart to replace mounts in pairs or as a set so the system sits level. Avoid stretching a single new mount against a bunch of tired ones, as that can preload the system and bring back knocks.

After fitting, make sure there’s consistent clearance around the pipe—heat shields, crossmembers, and the rear beam should have at least a finger’s gap. Tighten any associated brackets to the manufacturer’s spec and recheck after a few heat cycles. If the car runs firmer suspension or sits lower, consider heavy‑duty rubber mounts rather than hard polyurethane, which can transmit more vibration into the cabin.

Any time the Primera gets a new muffler, centre section, or catalytic converter, plan on fresh mounts. They’re inexpensive insurance against annoying noises, cracked welds, and exhaust leaks.

• Typical signs to act: clunks on start-up, exhaust tapping the floor, visible cracks or sagging rubbers, or the tailpipe sitting crooked.
• Handy tip: keep a couple of spare insulators in the boot for road trips—old rubbers can let go after a long, hot run.

Popular questions about 1990 Nissan Primera exhaust-mount

How many exhaust mounts does a 1990 Primera have?
Most P10s use three to five rubber insulators: one near the front/centre section and two around the rear muffler, with variations for engine and body style. There’s also a front pipe support bracket. A quick look under the car will confirm what’s fitted.

How often should the exhaust mounts be replaced?
There’s no fixed interval, but inspection every service is wise. In Aussie and Kiwi conditions, mounts commonly last years, though age, heat, and road grime can hasten cracking. Replace at the first sign of perishing, sagging, or if you’re installing new exhaust sections.

Can worn mounts cause vibration or knocking?
Yes. Perished or stretched mounts let the exhaust swing and touch the body or suspension, causing knocks over bumps or a buzz at certain revs. Fresh, correctly sized mounts usually restore proper clearance and tame the noise.