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Precision Raceworks BMW Auxiliary Coolant Reservoir Cap
The Precision Raceworks Auxiliary Coolant Reservoir Cap is a billet aluminum replacement that adds a clean, performance-focused touch to any BMW engine bay. It replaces the factory cap rather than covering it, and incorporates the OEM pressure relief internals so the cooling system keeps its original function.
Available in Blue, Black, and Silver finishes, each cap requires swapping the pressure relief valve from the original cap during installation. Durable billet aluminum construction provides long-lasting protection and dependability.
Key Features
| Brand | Precision Raceworks |
| Product Type | Auxiliary Coolant Reservoir Cap |
| Material | Billet Aluminum |
| Vehicle Compatibility | BMW |
| Color Options | Blue, Black, Silver |
| Installation | Requires swapping the pressure relief valve from the original cap |
| Pressure Relief | Incorporates OEM internals |
Highlights
- Billet aluminum construction
- Replaces the factory cap instead of covering it
- Incorporates OEM pressure relief internals
- Available in Blue, Black, and Silver
- Requires swapping the pressure relief valve from the original cap
Videos
Compatibility
Fits BMW vehicles. Confirm the auxiliary coolant reservoir cap application for your specific model and year before ordering.
How to use
Product Note:
Assembly is required, including the transfer of pressure relief valves from the original caps to the new billet caps.
Frequently asked questions
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