PRORONRA 603-334 Engine Coolant Reservoir Tank with Cap — Replacement for BMW 1 & 3 Series
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Description
xMeet your BMW cooling system’s reliable counterpart: the PRORONRA 603-334 Engine Coolant Reservoir Tank with Cap. Designed as a high-quality replacement, it aims to restore clear, steady operation across a broad spectrum of 1 Series and 3 Series models, spanning production years from mid-2000s to the mid-2010s. The tank’s structure blends practical engineering with attention to the details drivers notice on daily use—the feel of a secure cap, the crisp resistance of a sturdy plastic body, and the reassurance of a component built to handle routine temperature swings.
Build and design you can trust
- Compatibility: A broad replacement option for BMW models, including 1 Series M (2011), 118i (2012-2015), 120i (2005-2012, and 2016), 125i, 128i, 130i, 135i, 323i, 325i/xi, 328i/xDrive, 330i, 335i/335is, and X1 (2012-2015).
- Part numbers: Replaces 603-334 and multiple OEM references such as 17137567462, 17137519368, 17137640514, 17137543026, and 17137607482.
- Durable construction: Crafted from premium plastic to resist impact and withstand weather exposure during daily climates and road trips.
- Cooling efficiency: Engineered with stable heat transfer characteristics to help dissipate heat more effectively, supporting the engine’s operating temperatures.
- Longevity and installation: Designed for long service life with straightforward installation for a confident, do-it-yourself replacement.
In real-world use, this reservoir aims to integrate into a familiar driving routine—from morning commutes to weekend getaways. The cap locks securely, the body feels solid in hand, and the overall fit is intended to align with factory connections. While results can vary with vehicle condition and driving style, the parts-focused design keeps the focus on dependable operation rather than dramatic claims.
What to expect and how it helps
- Stability: Consistent cooling system behavior under typical driving conditions.
- Reliability: A long-lasting component designed to resist daily wear and weather exposure.
- Installation convenience: A replacement that aims for a smooth, tool-simple swap for compatible BMW models.
We’re glad to assist with any questions about fitment or installation. Your requirements are welcome, and we’re ready to help you find the right match.
FAQ
Q: What cars is this reservoir compatible with?
A: Fits multiple BMW 1 Series and 3 Series models listed in the notes; check the part numbers 603-334 or 17137567462 to confirm compatibility.
Q: What benefits can I expect from this reservoir?
A: The design aims for stable heat dissipation, long service life, and easy installation, potentially supporting engine temperature regulation and consistent performance in daily driving.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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