Parts for your 2011 Nissan Navara-Exhaust mount

2011 Nissan Navara Exhaust Mount — What It Does and When to Replace It

Yes, the 2011 Nissan Navara (D40) uses exhaust mounts. Technical sources including the Nissan Navara D40 Service Manual (EX — Exhaust System), the Nissan Electronic Parts Catalogue (listing “insulator, exhaust”/hangers for D40), and common workshop references such as Haynes and Ellery manuals all show multiple rubber exhaust insulators fitted along the system. Aftermarket catalogues for the D40 (e.g., Mackay Rubber and Febest) also list direct-fit exhaust mount rubbers for 2011 models, confirming they’re standard equipment and service items.

The exhaust mounts on a 2011 Navara keep the exhaust suspended under the ute, isolating vibration and stopping the pipework and muffler from knocking the chassis, towbar, or leaf springs. They also keep the system aligned so flanges and flex joints aren’t stressed. On Aussie and Kiwi roads — corrugations, beach runs, towing the boat — those little rubber insulators do a lot of quiet heavy lifting.

As part of routine servicing, they’re worth a look every 10,000–15,000 km or at each oil change. Signs they’re due include perished or cracked rubber, elongated holes, a droopy tailpipe, thunking over bumps, or a new buzz at idle. If one’s cactus, replacing the set in that area keeps the height and stiffness even. A mist of silicone spray or rubber grease helps slip new ones on, supporting the exhaust with a jack stand makes the job easier.

• Common symptoms: knocks over bumps, sagging tailpipe, rattles at idle, exhaust kissing the towbar or crossmember, exhaust fumes sneaking forward.
• Quick tips: check bracket bolts for torque, ensure 10–20 mm clearance around the system, and avoid pre-loading the exhaust when tightening clamps.

For vehicles that tow or run an aftermarket larger-diameter system, consider higher-temp rubber or polyurethane mounts — just note that stiffer mounts can transmit a touch more vibration into the cabin. Don’t mix wildly different hardness mounts along one system, and make sure DPF-equipped variants keep the correct number and position of hangers to support the extra mass. If mounts keep failing, check engine and transmission mounts, as well as the condition of the flex joint and any misaligned brackets.

Genuine-style rubber “insulator, exhaust” hangers are a safe pick for daily use, while quality aftermarket options suit heavier duty work. Either way, a fresh set of mounts is cheap insurance for the turbo, cat/DPF, and the rest of the pipework on a hardworking Navara.

Popular questions

How many exhaust mounts does a 2011 Navara D40 have?
The D40 typically uses several rubber insulators from the front pipe to the tail section — commonly two to four around the muffler/rear section and additional supports up front. Exact count varies with body style, engine, and whether it’s DPF-equipped. A quick visual under the ute or a check against a parts diagram will confirm the set for that VIN.

Are polyurethane exhaust mounts a good idea for towing?
Yes, they can help control movement on heavy loads or corrugations thanks to higher stiffness and heat resistance. Expect a slight increase in vibration compared to soft OE rubber. Many owners pair poly rears with quality rubber up front to balance support and comfort.

Why do my D40 exhaust mounts keep failing?
Repeated failures often point to underlying issues: a misaligned aftermarket exhaust, a fatigued flex joint, tired engine/gearbox mounts, or the system touching the towbar or crossmember. Fix the root cause, then fit fresh, quality insulators of matching hardness across the affected section.