About This Rear Left Axle Assembly with Locking Differential
This OEM rear left axle assembly restores factory-grade driveline performance only for vehicles equipped with a locking differential and torque vectoring, ensuring optimal power transfer to the rear wheels in demanding conditions.
Part #LR161703, supersedes LR073345 (engineering casting number CPLA-4K138-AD). Fits 2013-2022 Range Rover, 2014-2022 Range Rover Sport, 2017-2023 Discovery, and 2020-2023 Defender 90/110/130 with a locking differential. Includes both inner and outer CV joints, cleaned, tested, and ready to install — a cost-effective, OEM-grade solution for replacing worn or damaged drivetrain components.
What's Included & Features
Every part is inspected before it leaves our facility.
Here's what you get with this listing:
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Genuine OEM Part — not aftermarket, sourced from original Land Rover equipment.
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Part Number: LR161703 — supersedes LR073345.
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Engineering Casting Number: CPLA-4K138-AD — stamped on the original unit for identification.
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Includes Inner & Outer CV Joints — complete assembly ready to install.
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Locking Differential Models Only — confirm your vehicle's configuration before ordering.
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Direct OEM Replacement — matches factory fit and finish. No modification required.
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OEM Used & Refurbished — Inspected — professionally reconditioned and quality-checked before shipping.
Part Specifications
| Part # | LR161703 / 447-11838 |
| Replaces | LR073345 |
| Engineering Casting # | CPLA-4K138-AD |
| Part Type | Axle Assembly — Rear Left, Includes Inner & Outer CV Joints, Locking Differential / Torque Vectoring Models |
| Position | Rear Left (Driver Side) |
| Compatible Models | Land Rover Range Rover (2013-2022) / Range Rover Sport (2014-2022) / Discovery (2017-2023) / Defender 90 (2021-2023) / Defender 110 (2020-2023) / Defender 130 (2023) — for vehicles equipped with a locking differential and torque vectoring |
| Part Condition | OEM Used & Refurbished — Inspected |
Vehicle Fitment
| Year | Make | Model | Trim | Engine |
| Range Rover | ||||
| 2013-2022 (L405) | Land Rover | Range Rover | Autobiography, Base, HSE, Supercharged, Westminster Edition | Fits All Engines |
| Range Rover Sport | ||||
| 2014-2022 | Land Rover | Range Rover Sport | Autobiography, HSE, HSE Dynamic, HSE PHEV, HSE Silver Edition, HST, SE, SVR, SVR Carbon Edition, SVR Ultimate Edition, Supercharged, Supercharged Dynamic | Fits All Engines |
| Discovery | ||||
| 2017-2021 | Land Rover | Discovery | First Edition, HSE, HSE Luxury, Landmark Edition, R-Dynamic HSE, R-Dynamic S, S, SE | Fits All Engines |
| Defender | ||||
| 2020-2023 | Land Rover | Defender 90, 110, 130 | 30th Anniversary Edition, Base, First Edition, HSE, S, SE, V8, V8 Carpathian Edition, X, X-Dynamic HSE, X-Dynamic S, X-Dynamic SE, XS Edition | Fits All Engines |
⚠ Always verify part number LR161703 (supersedes LR073345) matches your original unit before purchasing. Call us if unsure — (877) 443-9246.