2018-2023 BMW M550i xDrive Coil Spring Front, Left, Right 31336879729
OEM Part #: 31-33-6-879-729 (31336879729)
Actual photo
The exact part you’ll receive — not a stock photo.
$46.99
Side: Front, Left, Right
Used
Donor2020 BMW M550i xDrive · 4.4L · 68k miles
✓ Free Same Day Shipping on orders by noon CT
Only 2 in stock — no guaranteed restock
Genuine OEM Used
SKU: 555303
Donor Vehicle: 2020 BMW M550i xDrive · 4.4L · 68k miles
$46.99
30-Day Returns
Genuine OEM Used
SKU: 664160
Donor Vehicle: 2020 BMW M550i xDrive · 4.4L · 49k miles
$58.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
This used OEM BMW coil spring, part number 6879729 (also replaces 6866395 and 6866396), is genuine from a donor vehicle. Designed for the front left or right position on the 4.4L V8 engine, it supports weight and absorbs road impacts. A failing coil spring often causes sagging ride height, clunking noises, or uneven tire wear.
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2018-2023.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 6 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2023 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2022 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2020 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2019 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2018 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo |