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603-125
Over time coolant reservoirs become susceptible to heat and engine vibration and eventually crack and leak. Dorman Coolant Reservoirs are manufactured with premium plastic to withstand the effects of stress generated within the engine compartment.
Our coolant reservoirs are thoroughly tested to ensure a trouble-free performance and long-lasting quality year after year.
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Features
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Videos
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Instructions
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Vehicle Fitment
- Direct replacement for a proper fit every time
- Comes with reservoir cap
- Level sensor included (where applicable)
- Quality tested to ensure trouble-free installation and performance
- GM OE Part# 15085725, 15808714
- Non-Direct Cross GM Part# 15075118
Year
Make
Engine
2001 - 2004
GM Duramax
6.6L LB7
2004.5 - 2005
GM Duramax
6.6L LLY
2006- 2007
GM Duramax
6.6L LLY / LBZ