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💡 This page improves over time as the community adds casting photos and confirms fitment
Rear Left Seat Belt Retractor
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
Wiki page
3L I6 Naturally Aspirated N52B30 (240hp).
Quick reference
Verify compatibility with specific interior configurations before purchase.
Check for any mid-cycle changes that might affect fitment.
Context
For the 2011 BMW 528i, the rear left seat belt retractor is crucial for passenger safety. The OEM part number 72127151440 is recommended for replacements. When sourcing this component from a junkyard, look for compatible models within the 2011-2016 5 Series (F10) range. Inspect the retractor for any signs of wear or mechanical failure, such as a jammed belt or faulty locking mechanism. Installation typically involves removing the rear seat cushion to access the mounting bolts. Ensure that the replacement retractor is free from rust or damage. Common failures include the retractor mechanism failing to lock, which can lead to safety hazards during sudden stops.
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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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