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Dorman 520-831 Lateral Arm - Rear Left Upper Forward
| Brand | Dorman 520-831 |
|---|---|
| Position | Rear Left Upper Forward |
| Material | Acero |
| Material | Steel |
| Bushing Color | Black |
| Bushing Color | Negro |
| Bushing Color | Noir |
| Length | 237 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Bushings Included | Oui |
| Bushings Included | Sí |
| Bushings Included | Yes |
| Ball Joint Included | Oui |
| Ball Joint Included | Sí |
| Ball Joint Included | Yes |
| Mounting Hardware Included | Oui |
| Mounting Hardware Included | Sí |
| Mounting Hardware Included | Yes |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Adjustable | No |
| Adjustable | Non |
| Bushing Material | Acero |
| Bushing Material | Steel |
| Mounting Hole Diameter | 12.3 |
| Articulación de rótula instalada | Sí |
| Ball Joint Installed | Oui |
| Ball Joint Installed | Yes |
| Ball Joint Stud Type | Roscado |
| Ball Joint Stud Type | Threaded |
| Fits | BMW · 167 vehicles |
Standard replacement. Direct-fit lateral arm for a reliable OE-style replacement.
Steel construction. Built with steel for strength and dependable suspension support.
Ball joint included. Comes with a preinstalled ball joint and mounting hardware.
Cross-references Beck/Arnley 102-8370, Delphi TC4538 and Suspensia X05LA0397 for the same application. See all 4.
$159.39Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dorman 520-831 Rear Left Upper Forward Lateral Arm
Dorman 520-831 is a steel lateral arm built for rear suspension service on select BMW applications. It is precision-engineered and tested as a direct replacement for the original equipment part, with a black finish, included bushings, and an installed ball joint for a complete suspension repair.
Key Features
- Steel construction for suspension strength and durability
- Standard replacement grade for OE-style service
- Ball joint installed with threaded stud design
- Bushings included for a more complete repair
- Mounting hardware included
- Black arm and black bushings
- Non-adjustable design
- Part number: 520-831
Vehicle Fitment
- Fits 2020-2024 BMW 840i, rear left upper forward.
- Fits 2020-2024 BMW 840i Gran Coupe, rear left upper forward.
- Fits 2020-2024 BMW 840i xDrive, rear left upper forward.
- Fits 2020-2024 BMW 840i xDrive Gran Coupe, rear left upper forward.
- Fits 2022-2024 BMW Alpina B8 Gran Coupe, rear left upper forward.
- Fits 2022-2024 BMW M8, rear left upper forward.
- Fits 2020 BMW M8, rear left upper forward.
- Fits 2020-2024 BMW M8 Gran Coupe, rear left upper forward.
- Fits 2019-2024 BMW M850i xDrive, rear left upper forward.
- Fits 2020-2024 BMW M850i xDrive Gran Coupe, rear left upper forward.
- Fits 2018-2023 BMW 530e, rear left upper forward.
- Fits 2018-2023 BMW 530e xDrive, rear left upper forward.
- Fits 2017-2023 BMW 530i, rear left upper forward.
- Fits 2017-2023 BMW 530i xDrive, rear left upper forward.
- Fits 2017-2023 BMW 540i, rear left upper forward.
- Fits 2017-2023 BMW 540i xDrive, rear left upper forward.
- Fits 2018-2023 BMW M5, rear left upper forward.
- Fits 2018-2023 BMW M550i xDrive, rear left upper forward.
- Fits 2016-2022 BMW 740i, rear left upper forward.
- Fits 2017-2022 BMW 740i xDrive, rear left upper forward.
- Fits 2020-2022 BMW 745e, rear left upper forward.
- Fits 2020-2022 BMW 745e xDrive, rear left upper forward.
- Fits 2020-2022 BMW 745Le xDrive, rear left upper forward.
- Fits 2016-2022 BMW 750i xDrive, rear left upper forward.
- Fits 2016-2022 BMW 750Li xDrive, rear left upper forward.
- Fits 2017-2022 BMW M760i xDrive, rear left upper forward.
- Fits 2017-2022 BMW M760Li xDrive, rear left upper forward.
- Fits 2018-2020 BMW 520i, rear left upper forward.
- Fits 2018-2019 BMW 640i xDrive Gran Turismo, rear left upper forward.
- Fits 2017-2019 BMW 740e xDrive, rear left upper forward.
- Fits 2016-2019 BMW 750i, rear left upper forward.
- Fits 2016-2019 BMW 750Li, rear left upper forward.
- Fits 2018 BMW 540d xDrive, rear left upper forward.
- Fits 2017 BMW 740Le xDrive, rear left upper forward.
What It Helps Repair
- Rear suspension looseness or instability
- Clunking or knocking from the rear suspension area
- Uneven tire wear caused by worn suspension geometry
- Excessive rear-end movement over bumps or during cornering
- Failed or worn lateral arm bushings and ball joint wear
Installation Notes
Verify the rear left upper forward position before installation and compare the original arm length, mounting points, and ball joint style to the replacement part. This Dorman 520-831 uses a threaded ball joint stud and a single mounting hole configuration, so confirm the vehicle’s suspension layout and fastener fitment during service. A professional alignment is recommended after suspension component replacement.
Quality Assurance
Dorman engineers this lateral arm as a direct OE-style replacement and subjects it to testing for reliable service on the listed BMW applications. This part cross-references Beck/Arnley 102-8370 and Delphi TC4538 for the same application.
This part fits 167 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2024 | BMW | 840i | Rear Left Upper Forward | — |
| 2024 | BMW | 840i Gran Coupe | Rear Left Upper Forward | — |
| 2024 | BMW | 840i xDrive | Rear Left Upper Forward | — |
| 2024 | BMW | 840i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2024 | BMW | Alpina B8 Gran Coupe | Rear Left Upper Forward | — |
| 2024 | BMW | M8 | Rear Left Upper Forward | — |
| 2024 | BMW | M8 Gran Coupe | Rear Left Upper Forward | — |
| 2024 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2024 | BMW | M850i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2023 | BMW | 530e | Rear Left Upper Forward | — |
| 2023 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | 530i | Rear Left Upper Forward | — |
| 2023 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | 540i | Rear Left Upper Forward | — |
| 2023 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | 840i | Rear Left Upper Forward | — |
| 2023 | BMW | 840i Gran Coupe | Rear Left Upper Forward | — |
| 2023 | BMW | 840i xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | 840i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2023 | BMW | Alpina B8 Gran Coupe | Rear Left Upper Forward | — |
| 2023 | BMW | M5 | Rear Left Upper Forward | — |
| 2023 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | M8 | Rear Left Upper Forward | — |
| 2023 | BMW | M8 Gran Coupe | Rear Left Upper Forward | — |
| 2023 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2023 | BMW | M850i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2022 | BMW | 530e | Rear Left Upper Forward | — |
| 2022 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 530i | Rear Left Upper Forward | — |
| 2022 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 540i | Rear Left Upper Forward | — |
| 2022 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 740i | Rear Left Upper Forward | — |
| 2022 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 745e | Rear Left Upper Forward | — |
| 2022 | BMW | 745e xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 745Le xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 840i | Rear Left Upper Forward | — |
| 2022 | BMW | 840i Gran Coupe | Rear Left Upper Forward | — |
| 2022 | BMW | 840i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | 840i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2022 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2022 | BMW | Alpina B8 Gran Coupe | Rear Left Upper Forward | — |
| 2022 | BMW | M5 | Rear Left Upper Forward | — |
| 2022 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | M8 | Rear Left Upper Forward | — |
| 2022 | BMW | M8 Gran Coupe | Rear Left Upper Forward | — |
| 2022 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2022 | BMW | M850i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2021 | BMW | 530e | Rear Left Upper Forward | — |
| 2021 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 530i | Rear Left Upper Forward | — |
| 2021 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 540i | Rear Left Upper Forward | — |
| 2021 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 740i | Rear Left Upper Forward | — |
| 2021 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 745e | Rear Left Upper Forward | — |
| 2021 | BMW | 745e xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 745Le xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 840i | Rear Left Upper Forward | — |
| 2021 | BMW | 840i Gran Coupe | Rear Left Upper Forward | — |
| 2021 | BMW | 840i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | 840i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2021 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2021 | BMW | M5 | Rear Left Upper Forward | — |
| 2021 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | M8 Gran Coupe | Rear Left Upper Forward | — |
| 2021 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2021 | BMW | M850i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2020 | BMW | 520i | Rear Left Upper Forward | — |
| 2020 | BMW | 530e | Rear Left Upper Forward | — |
| 2020 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 530i | Rear Left Upper Forward | — |
| 2020 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 540i | Rear Left Upper Forward | — |
| 2020 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 740i | Rear Left Upper Forward | — |
| 2020 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 745e | Rear Left Upper Forward | — |
| 2020 | BMW | 745e xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 745Le xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 840i | Rear Left Upper Forward | — |
| 2020 | BMW | 840i Gran Coupe | Rear Left Upper Forward | — |
| 2020 | BMW | 840i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | 840i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2020 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2020 | BMW | M5 | Rear Left Upper Forward | — |
| 2020 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | M8 | Rear Left Upper Forward | — |
| 2020 | BMW | M8 Gran Coupe | Rear Left Upper Forward | — |
| 2020 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2020 | BMW | M850i xDrive Gran Coupe | Rear Left Upper Forward | — |
| 2019 | BMW | 520i | Rear Left Upper Forward | — |
| 2019 | BMW | 530e | Rear Left Upper Forward | — |
| 2019 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 530i | Rear Left Upper Forward | — |
| 2019 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 540i | Rear Left Upper Forward | — |
| 2019 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 640i xDrive Gran Turismo | Rear Left Upper Forward | — |
| 2019 | BMW | 740e xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 740i | Rear Left Upper Forward | — |
| 2019 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 750i | Rear Left Upper Forward | — |
| 2019 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | 750Li | Rear Left Upper Forward | — |
| 2019 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2019 | BMW | M5 | Rear Left Upper Forward | — |
| 2019 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2019 | BMW | M850i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 520i | Rear Left Upper Forward | — |
| 2018 | BMW | 530e | Rear Left Upper Forward | — |
| 2018 | BMW | 530e xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 530i | Rear Left Upper Forward | — |
| 2018 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 540d xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 540i | Rear Left Upper Forward | — |
| 2018 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 640i xDrive Gran Turismo | Rear Left Upper Forward | — |
| 2018 | BMW | 740e xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 740i | Rear Left Upper Forward | — |
| 2018 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 750i | Rear Left Upper Forward | — |
| 2018 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | 750Li | Rear Left Upper Forward | — |
| 2018 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2018 | BMW | M5 | Rear Left Upper Forward | — |
| 2018 | BMW | M550i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2018 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 530i | Rear Left Upper Forward | — |
| 2017 | BMW | 530i xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 540i | Rear Left Upper Forward | — |
| 2017 | BMW | 540i xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 740e xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 740i | Rear Left Upper Forward | — |
| 2017 | BMW | 740i xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 740Le xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 750i | Rear Left Upper Forward | — |
| 2017 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | 750Li | Rear Left Upper Forward | — |
| 2017 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | Alpina B7 | Rear Left Upper Forward | — |
| 2017 | BMW | M760i xDrive | Rear Left Upper Forward | — |
| 2017 | BMW | M760Li xDrive | Rear Left Upper Forward | — |
| 2016 | BMW | 740i | Rear Left Upper Forward | — |
| 2016 | BMW | 750i | Rear Left Upper Forward | — |
| 2016 | BMW | 750i xDrive | Rear Left Upper Forward | — |
| 2016 | BMW | 750Li | Rear Left Upper Forward | — |
| 2016 | BMW | 750Li xDrive | Rear Left Upper Forward | — |
| No rows match your filter. | ||||
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Beck/Arnley — 102-8370Delphi — TC4538Suspensia — X05LA039733326867537