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TrakMotive BM-8129 CV Axle Shaft - Front Left
| Brand | TrakMotive BM-8129 |
|---|---|
| Position | Front Left |
| Abs Tone Ring Included | No |
| Axle Bolt Hex Size (mm) | 17 |
| Axle Bolt Length (mm) | 83.5 |
| Axle Bolt Thread Size | M16*1.5 |
| Axle Nut Included | No |
| Boot Material | Neoprene |
| Inboard Joint Type | Male |
| Inboard Shaft Connection Style | Spline |
| New Or Remanufactured | New |
| Number Of Bolt Holes | 1 |
| Number Of Inboard Splines | 27 |
| Number Of Outboard Joint Bolt Holes | 1 |
| Number Of Outboard Shaft Bolts | 1 |
| Number Of Outboard Splines | 37 |
| Outboard Joint Type | Audi Style Spline Bolt |
| Outboard Shaft Connection Style | Spline |
| Overall Compressed Length (in) | 22.09 |
| Overall Compressed Length (mm) | 561 |
| Product line | AAR CV Axle Shaft |
| Fits | BMW · 31 vehicles |
New AAR CV axle shaft. A direct replacement for a worn driveline component.
Neoprene boot material. Helps resist wear and keep the joint protected.
ISO 9001 and TS 16949 certified. Built by a company with recognized quality standards.
Cross-references TrakMotive BM-8129, 31607593043 and 31607618681 for the same application. See all 4.
BMW Front Left CV Axle Shaft
TrakMotive BM-8129 is a new front left CV axle shaft for select BMW xDrive applications. It is built with an Audi-style spline bolt outboard joint, neoprene boot material, and OE-style spline connections to support precise driveline fitment on BMW 528i xDrive, 535i xDrive, 550i xDrive, 640i xDrive, and 650i xDrive models.
Key Features
- Brand: TrakMotive AAR CV Axle Shaft
- Part number: BM-8129
- New CV axle shaft, not remanufactured
- Front left position
- Inboard joint type: male
- Inboard shaft connection style: spline
- Outboard joint type: Audi-style spline bolt
- Outboard shaft connection style: spline
- Boot material: neoprene
- Overall compressed length: 22.09 in. (561 mm)
- Axle bolt thread size: M16 x 1.5
- Axle bolt hex size: 17 mm
- Axle bolt length: 83.5 mm
- ABS tone ring included: No
- Axle nut included: No
Product Details
The TrakMotive AAR CV Axle Shaft line is built for OE-style driveline service on BMW front-wheel drive and xDrive layouts that require accurate spline engagement and correct compressed length. BM-8129 matches updated-design front left applications and also covers OE AAR design listings for 2019 BMW 640i Gran Coupe and 2019 BMW 650i Gran Coupe. This part cross-references BMW 31607593043 and 31607618681 for the same application.
Common Problems This Part Addresses
- Clicking or popping during turns from a worn CV joint
- Vibration under acceleration from a damaged axle shaft
- Torn boot conditions that allow grease loss and contamination
- Excessive driveline play from worn spline engagement
- Front left axle failure on BMW xDrive vehicles
Installation Notes
Verify axle bolt thread size, bolt hex size, and overall compressed length before installation. Confirm front left fitment against the vehicle’s build details, especially on BMW 528i xDrive, 535i xDrive, 550i xDrive, 640i xDrive, and 650i xDrive applications. ABS axles fit non-ABS applications unless otherwise noted. The axle nut is not included, and the ABS tone ring is not included.
Quality Assurance
TrakMotive states that this CV axle shaft is backed by a limited lifetime warranty and produced by an ISO 9001:1007 and TS 16949:2009 certified company.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2019 | BMW | 640i Gran Coupe | — | Front Left | OE AAR design; AAR CV Axle Shaft |
| 2019 | BMW | 650i Gran Coupe | — | Front Left | OE AAR design; AAR CV Axle Shaft |
| 2018 | BMW | 640i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2018 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2017 | BMW | 640i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2017 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | BMW | 528i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | BMW | 640i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2016 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2015 | BMW | 528i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2015 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2015 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2015 | BMW | 640i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2015 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2014 | BMW | 528i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2014 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2014 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2014 | BMW | 640i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2014 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2013 | BMW | 528i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2013 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2013 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2013 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2012 | BMW | 528i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2012 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2012 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2012 | BMW | 650i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2011 | BMW | 535i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
| 2011 | BMW | 550i xDrive | AWD | Front Left | Updated Design; AAR CV Axle Shaft |
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