Mercury MerCruiser Quicksilver Exhaust Shutter Grommet 807167
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Mercury MerCruiser Quicksilver 25-807167 is an OEM-style exhaust shutter grommet used in select MerCruiser exhaust system assemblies. It is commonly used with the exhaust water shutter / flapper assembly to support the shutter pin in the Y-pipe or exhaust passage, helping the shutter move correctly while reducing metal-to-metal wear at the mounting point. Mercury parts references show 25-807167 / 807167 superseding to the current replacement 25-8M0204688 / 8M0204688.
Key Features
- Genuine Mercury / Quicksilver-style exhaust shutter grommet reference
- Used with select MerCruiser exhaust shutter / water shutter assemblies
- Supports the shutter pin and helps maintain proper shutter movement
- Original Mercury reference: 25-807167 / 807167
- Current replacement reference: 25-8M0204688 / 8M0204688
- Sold individually in common catalog references
- GTIN / UPC reference: 745061286177
Engine Compatibility
This grommet is commonly associated with select MerCruiser Alpha and Bravo stern drive exhaust systems, including many 4.3L V6, 5.0L / 5.7L small-block V8, 6.2L, 7.4L / 454, 8.1L / 496, and 8.2L applications depending on serial number and exhaust assembly. Additional exhaust shutter references show the related shutter and grommet arrangement used on some 4.3L, 5.0L, 5.7L, 7.4L, and 8.1L engines with matching Y-pipe / water shutter assemblies.
Serial Number Fitment Notice
Exhaust shutter grommet fitment depends on the exact engine model, exhaust Y-pipe, water shutter style, transom/exhaust configuration, and serial number range. Always confirm compatibility using the MerCruiser engine or drive serial number before ordering, especially where older 25-807167 has been replaced by 25-8M0204688.
When This Part Needs Replacement
Replace this grommet when servicing the exhaust shutter, or if the original grommet is hardened, cracked, missing, swollen, burned, loose, or damaged during removal. A worn shutter grommet can allow poor shutter support, rattling, binding, or improper exhaust shutter movement.
Installation Notes
Inspect the exhaust shutter / flapper, cross pin, grommet holes, and Y-pipe mounting area during service. Install the grommet fully seated in the correct location and confirm the shutter moves freely without binding before reassembly. Exhaust shutters and grommets are often serviced together when the shutter is worn, heat-damaged, or no longer operating smoothly.
Alternate / Superseded Part Numbers
- 25-807167
- 807167
- 25-8M0204688
- 8M0204688
- Related exhaust shutter references: 807166A1 / 807166A2 ā confirm exact assembly by serial number before substituting related parts.
Parts Desk Insight
This grommet is small, but it matters because the exhaust shutter needs to pivot freely and stay properly supported. When replacing a water shutter, checking the grommets at the same time usually prevents repeat work inside the exhaust Y-pipe.
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