Goldenwrench Blackline Performance BMW M Car G-Chassis Washer Fluid Cap

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$47.00
$47.00
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The Goldenwrench Blackline Performance BMW M Car G-Chassis Washer Fluid Cap is a full-replacement billet upgrade designed to address one of the more overlooked details in the M vehicle engine bay. Built as a complete swap for the factory plastic reservoir cap, this unit pairs no-spill seal technology with precision CNC construction — correcting a known OEM seepage issue while delivering a clean, finished appearance consistent with the Blackline Performance product line.

Each cap is machined from T6 aluminum and finished in a race-inspired anodized finish, with all branding and logos permanently machined using 3D milling — no adhesive graphics, no decals. The finish is integral to the surface, ensuring it holds up to heat cycling, repeated cleaning, and long-term engine bay exposure.

Installation is entirely tool-free. The billet cap replaces the factory unit directly, threading into the existing reservoir mount and seating cleanly with the integrated seal. The process takes only minutes.

Product Details

  • Full replacement billet washer fluid cap — OEM unit removed entirely
  • CNC-machined from T6 aluminum
  • Integrated no-spill seal technology to prevent reservoir leakage
  • 3D-milled branding — no decals or surface treatments
  • Tool-free installation, direct OEM fitment
Goldenwrench Blackline Performance BMW M Car G-Chassis Washer Fluid Cap

$47.00

Does it come with a warranty?

Parts are covered by the manufacturer's warranty where one is offered. If something goes wrong, contact us and we'll help you with the claim.

What happens if I don't like it?

New, uninstalled parts in their original packaging can be returned within 30 days of delivery. Suspension components (coilovers, springs and dampers), wheel spacers and batteries can't be returned, and a restocking fee applies to approved returns. See our refund policy for details.

How fast is shipping?

In-stock orders usually ship within 1–3 business days. Many parts ship directly from the manufacturer or distributor. Orders over $200 ship free with standard shipping, and faster UPS and USPS options are available at checkout. See our shipping policy.

What's the returns policy?

You have 30 days after receiving your item to request a return. Parts must be new, uninstalled and in their original packaging. Contact us first to start a return. Full details are in our refund policy.

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