Parts for your 2004 Honda Stream-Exhaust mount

2004 Honda Stream exhaust-mount: what it does and how to look after it

Exhaust mounts (often called exhaust hangers) are absolutely used on the 2004 Honda Stream. Technical references including the Honda Stream (RN1–RN5, 2001–2005) workshop manual’s Exhaust System section and the Honda Electronic Parts Catalogue for RN3/RN4 list multiple rubber hangers and steel brackets supporting the front pipe, centre resonator, and rear muffler. These components isolate vibration, keep the system aligned, and prevent metal-on-body contact.

On a 2004 Stream, the exhaust-mounts are simple, hard-wearing rubber isolators that slide over pegs on the chassis and exhaust. Their job is to let the exhaust move a touch as the engine rocks and the car flexes, without transferring droning or knocks into the cabin. If they perish or stretch, the system can droop, rattle over bumps, or thump the rear beam or underbody.

As part of regular servicing, it’s worth giving the mounts a once-over every 10,000–20,000 km, or at each oil service. Anyone chasing a WOF or roadworthy will know inspectors look for a secure, well-supported exhaust with adequate clearance—tired mounts are a common reason for a fail.

Practical tips for replacement and care:

• Look for cracks, splits, and shiny rub marks on the exhaust—signs it’s been touching the body or suspension.
• Support the exhaust with a jack and a block of wood before pulling mounts off, and never work on a hot system.
• A spritz of silicone spray makes stubborn rubber hangers slide on and off much easier, avoid petroleum-based lubricants that can swell rubber.
• Replace any mount that’s torn or noticeably stretched, and consider doing them in pairs near the same section for even support.
• Stick with quality OEM-equivalent rubber hangers, heavy-duty options can be useful if towing or if the vehicle has an aftermarket exhaust, but too-stiff mounts can transmit more vibration.
• Check adjacent brackets and heat shields for corrosion or loose fasteners, tighten bracket bolts to the factory spec from the Honda manual.

Done right, fresh exhaust-mounts restore the Stream’s quiet, rattle-free feel and keep the pipework sitting where Honda intended, which helps longevity and comfort on Aussie and Kiwi roads alike.

Popular questions about 2004 Honda Stream exhaust-mounts

How many exhaust-mounts does a 2004 Honda Stream have?
Most 2004 Streams have three to five mounting points depending on engine and trim: typically one near the front pipe, one around the centre section, and two at the rear muffler. Variations exist with different muffler designs, so a quick under-car look is best.

What symptoms point to worn exhaust-mounts on a Stream?
Common giveaways include a metallic rattle at idle, clunks over speed humps, the tailpipe sitting off-centre in the bumper cut-out, or fresh scuff marks on the muffler where it’s kissed the underbody. A strong exhaust smell or leak is usually a separate issue, but loose mounts can contribute by stressing joints.

Can universal hangers be used, or should owners stick to OEM?
Universal hangers can work if the hole spacing and thickness match, but fit and longevity vary. For a stock 2004 Stream, OEM or a trusted aftermarket equivalent is the safest bet. If the car tows or runs a heavier aftermarket system, consider a slightly firmer hanger—just avoid going so stiff that it adds cabin drone.