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This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Brake Proportioning Valve
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Quick reference
Verify casting marks for long-term reliability and compatibility
Check for any mid-cycle changes in part numbers or specifications
Inspect the condition of the valve before installation for any signs of wear or damage
Context
When searching for a brake proportioning valve for your 2011 BMW 528i, start by sourcing the OEM part number 34217711923. This component is critical for maintaining proper brake distribution and is often found near the master cylinder. Ensure that you verify the casting mark, such as BOSCH, to confirm compatibility with your vehicle. If you're considering an aftermarket part, also check the interchange list; part number 34217711901 could be used in various BMW models, including certain 3 Series and X3 models, but verify mounting bracket differences and connector compatibility. Inspecting the valve for any signs of corrosion or damage is crucial before installation. Remember to bleed the brakes after installing a new proportioning valve to ensure optimal performance.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2011 | BMW | 528i | 3L I6 Naturally Aspirated N52B30 (240hp) | 80% |
Available parts

Seller: Marketplace seller
$34
Asking
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