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Please ensure the part matches the photos and your vehicle before purchasing. OEM numbers are for reference only—this is an aftermarket part, not made or approved by the original vehicle manufacturer.
  • BMW 3 Series (F30, F34) & 4 Series (F32, F33, F36) Upper Trailing Arm Left (31126855741). RSK Motor Spares. Fast South Africa delivery.
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BMW 3 Series & 4 Series (2011-2020) - Upper Trailing Arm Front Left

BMW 3 Series & 4 Series (2011-2020) - Upper Trailing Arm Front Left

R 1,299.99
R 0.00 R 1,299.99
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Description

This direct-replacement Front Upper Control Arm (Front Left Position / Upper Thrust Strut Tension Strut) is engineered specifically for BMW 3 Series (F30 Sedan, F31 Touring, F34 Gran Turismo) and 4 Series (F32 Coupe, F33 Convertible, F36 Gran Coupe) models equipped with rear-wheel drive (RWD) sold in South Africa. Precision-forged from high-strength aluminum alloy and pre-fitted with a heavy-duty hydraulic rubber bushing (hydro-bushing) and outer ball joint, it forms the critical upper front suspension tracking link. Over time, original front upper control arms experience hydraulic fluid leakage from the main rubber bushing, outer ball joint play, and metal fatigue, resulting in front-end steering shudder under braking, vehicle pulling, uneven tire edge wear, and clunking noises over bumps. Built to exact original equipment tolerances, it restores crisp steering feedback, directional stability, and factory ride refinement.

Simplified Vehicle Compatibility List

BMW 3 Series Sedan (F30) (2011–2019) — 316i, 318i, 320i, 328i, 330i, 335i, 340i (B38 / N20 / B48 / N55 / B58 Engines)

BMW 3 Series Sedan (F30) (2011–2019) — 316d, 318d, 320d, 325d, 330d, 335d (N47 / B47 / N57 Engines)

BMW 3 Series Touring (F31) (2012–2019) — 316i, 318i, 320i, 328i, 330i, 335i, 340i, 316d, 318d, 320d, 330d

BMW 3 Series Gran Turismo (F34) (2013–2020) — 320i, 328i, 330i, 335i, 340i, 318d, 320d, 325d, 330d, 335d

BMW 4 Series Coupe / Convertible / Gran Coupe (F32 / F33 / F36) (2013–2020) — 420i, 428i, 430i, 435i, 440i, 420d, 425d, 430d, 435d

Application Note: Direct bolt-on front axle upper control arm fitted on the left-hand (LH / Passenger Side) front suspension. Fits Rear-Wheel Drive (RWD / sDrive) models only; excludes xDrive 4WD models. Always replace front suspension control arms in pairs (LH & RH simultaneously). Important: Final tightening of the inner rubber bushing bolt must be performed with the vehicle lowered on its wheels at normal ride height to avoid pre-loading and tearing the internal hydro-bushing. A 4-wheel alignment check is recommended post-installation.

Specifications

Part Type: Front Upper Control Arm / Upper Tension Strut / Thrust Arm

Fitting Position: Front Axle (Left-Hand Side / Upper Front Position)

Part Supplier Code: AR1025

OEM Reference Numbers: 31 12 6 855 741 / 31126855741 / 31 12 6 791 925 / 31126791925 / 31 12 6 852 991 / 31126852991 / 31 12 6 791 927 / 31126791927

Cross-Reference Part Numbers: LEMFÖRDER 36207 01 / FEBI Bilstein 39281 / SWAG 20 93 9281 / DELPHI TC2687 / MEYLE 316 050 0043/HD / MOOG BM-TC-13673 / SIDEM 21476 / TRW JTC1558

Construction Material: High-Strength Forged Aluminum Alloy with Integrated Heavy-Duty Hydro-Bushing & Ball Joint

Assembly Inclusions: Upper Control Arm Unit with Pre-Installed Hydraulic Rubber Bushing & Sealed Outer Ball Joint

Fast and reliable delivery available across South Africa.
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