Answer
Mar 02, 2026 - 02:44 PM
It will not fit the 2011 LML. This Sinister Diesel Coolant Reservoir (Degas) is specifically designed for the 2013-2015 GM Duramax 6.6L LML. It is not compatible with earlier model years, such as the 2011 LML.
Will this fit a 2011 HD3500 LML Sinister Diesel Coolant Reservoir (Degas) for 2013-2015 GM Duramax 6.6L LML
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Open Mar 02, 2026 - 02:44 PM
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Sinister Diesel Coolant Reservoir (Degas) for 2013-2015 GM Duramax 6.6L LML
Patent Pending Replace that cracked, leaky and boring factory coolant reservoir with this stylish and high-strength all-aluminum coolant reservoir from Sinister Diesel. This 2013-15 Duramax 6.6L coolant reservoir is made from 6061 aircraft-grade aluminum that is TIG welded and pressure tested for ma...
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