BTKUSA G8X/X3M/X4M S58 Billet Waterpump fittings
Pairs well with
Description
BTKUSA BILLET WATER PUMP FITTINGS
The factory S58 water pump adapters are one of those small parts that can turn into an expensive problem. From the factory, these adapters are plastic, and when they crack, break, or fail, BMW does not offer them as a simple standalone replacement. In most cases, the only option is replacing the entire water pump assembly, which can cost several hundred dollars just to fix a small adapter.
BTKUSA developed our billet S58 water pump adapters to solve that problem the right way. Instead of replacing the whole water pump with another unit that uses the same plastic pieces, our adapters allow you to replace the weak point directly.
Machined from 6061-T6 aluminum, these adapters are designed as direct replacements for the OEM pieces while offering a stronger, longer-lasting solution. Each adapter is made for simple plug-and-play installation and includes Viton O-rings for a proper seal.
This is a simple, affordable upgrade for anyone who has broken a factory adapter, wants to avoid replacing the entire water pump, or just wants extra peace of mind with a more durable billet solution.
BTKUSA G8X/X3M/X4M S58 Billet Waterpump fittings
FAQs
Answers to our most common questions below.
How Long Does Shipping Take?
All Rvng items ship within 1-3 days, if an item is out of stock the customer will be notified with the choice of a refund or an estimated timeline of delivery.
Do You Have Exhaust Parts For My Car?
We make a range of downpipes and exhaust systems for almost all BMW's. We choose to specialize in that market so we can always insure we are selling the best product possible for your Beamer!
Do You Offer In Person Pick-Up & Installs In Cali?
Yes, We are located in Garden Grove in Orange County, California. We invite any of our customers to pick-up in stock items and for any install or car related work.
Will Installing These Parts Void My Factory Warranty?
Aftermarket performance parts can affect your factory warranty on related components under the Magnuson-Moss Warranty Act — a dealer must prove the part caused the failure to deny a claim. We recommend speaking with your dealer or tuner. Our parts are precision-engineered to factory tolerances and we stand behind every product with our own Lifetime Warranty against defects and fitment issues.
Do These Parts Require a Tune?
Some parts — particularly downpipes, intake kits, and fuel system upgrades — will require or strongly benefit from an ECU tune to see full performance gains and to prevent check engine lights. Parts like heat exchangers, oil coolers, and hardware do not require a tune. We recommend reaching out to us or your local tuner before purchasing if you're unsure.
What Is Your Return Policy?
We accept returns within 30 days of delivery on unused, uninstalled, and undamaged items in original packaging. Custom or made-to-order parts are non-returnable. To start a return, contact us at rvngperformance@yahoo.com with your order number. Return shipping is the customer's responsibility unless the item arrived damaged or incorrect.
Are Your Catless Downpipes Street Legal?
Catless downpipes are intended for off-road and track use only. They are not emissions compliant and will trigger a check engine light without an appropriate tune or O2 spacers. If you need a street-legal option, contact us — we can discuss catted alternatives depending on your platform.
How Do I Know This Will Fit My Car?
Every RVNG product is developed and validated on the specific platforms listed. If your exact build year, model, or configuration isn't listed, contact us before ordering — we'll confirm fitment. We stand behind every part with our Fitment Guarantee: if it doesn't fit as described, we'll make it right.
If you have any questions, we're always welcome to help. We'll get back to you within 24 hours on weekdays.
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Shipping Information
All orders ship within 1-3 business days from our Garden Grove, CA facility.
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Customer Support
We're here to help. Reach out anytime and we'll get back to you within 24 hours on weekdays.
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FAQ's
Check out our FAQ section below for answers to our most common questions.
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Contact Us
Located in Garden Grove, CA. Stop by for pickup or install appointments — we'd love to meet you.