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BMW

Genuine BMW Valvetronic Eccentric Shaft Actuator 11377603979 - OEM Valvetronic Motor for N20/N55/S55 | E82 E90 F10 F20 F30 (Fits M135i, 328i, 335i, 535i, 640i, 740i, X3/X5/X6, Z4)

Genuine BMW Valvetronic Eccentric Shaft Actuator 11377603979 - OEM Valvetronic Motor for N20/N55/S55 | E82 E90 F10 F20 F30 (Fits M135i, 328i, 335i, 535i, 640i, 740i, X3/X5/X6, Z4)

£353.34
£364.00 £353.34
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Original BMW Intake Lift Actuator 11 37 7 603 979 for E8x E9x Fxx Platforms

Bring back smooth idle quality, crisp response and consistent power delivery with the factory intake valve lift drive unit, part number 11377603979. This OE electric drive and position sensor assembly controls the eccentric shaft for BMW’s variable valve lift system, ensuring accurate lift adjustment, stable running and dependable performance on turbocharged and naturally aspirated applications using the N20, N55 and S55 engines.

Ideal fix for symptoms such as fluctuating idle, hesitation, reduced power, limp-home behaviour and efficiency loss often attributed to a tired lift motor or position feedback fault. Direct-fit, plug-and-play and built by BMW for exact alignment and correct calibration.

Why buy this BMW valve lift drive unit

  • Genuine BMW component for precise control and OE-grade reliability
  • Direct replacement for the eccentric shaft drive and integral position sensor
  • Restores accurate intake lift modulation for a clean idle and strong mid-range
  • Used in-house by MJ Modifications on customer cars with excellent results
  • Perfect preventative maintenance on performance models and daily drivers alike

Part number

11377603979 | also written as 11 37 7 603 979

Compatibility

Suits a wide range of BMW chassis running N20, N55 and S55 engines across 1 Series, 2 Series, 3 Series, 4 Series, 5 Series, 6 Series, 7 Series, X models and Z4. Popular fitments include:

  • 1 Series: E82 E88 135i | F20 F21 125i M135i xDrive
  • 2 Series: F22 F23 220i 228i xDrive M235i xDrive | F87 M2
  • 3 Series: E90 E91 E92 E93 335i xDrive | F30 F31 F34 320i 328i xDrive 335i xDrive Hybrid 3 | F80 M3
  • 4 Series: F32 F33 F36 420i 428i xDrive 435i xDrive | F82 F83 M4
  • 5 Series: F07 GT 535i xDrive | F10 F11 520i 528i xDrive 535i xDrive Hybrid 5
  • 6 Series: F06 Gran Coupé 640i xDrive | F12 F13 640i xDrive
  • 7 Series: F01 F02 740i 740Li xDrive Hybrid 7
  • X models: E84 X1 16i 20i 28i xDrive 35i xDrive | F25 X3 18i 20i 28i xDrive 35i xDrive | F26 X4 20i xDrive 28i xDrive 35i xDrive M40i xDrive | E70 X5 35i xDrive 40i xDrive | F15 X5 28i xDrive 35i 35i xDrive 40e xDrive | E71 X6 35i xDrive 40i xDrive | F16 X6 28i xDrive 35i 35i xDrive
  • Z4: E89 sDrive18i sDrive20i sDrive28i

Common model references include M135i, 320i, 328i, 335i, 535i, 640i, 740i, X3 35i, X5 35i, X6 35i and Z4 20i 28i among many others.

What you may want to replace at the same time

To help ensure a leak-free refit and a tidy job, many owners choose to refresh surrounding hardware while the unit is accessible. Commonly paired items include:

  • Valve cover gasket set for the relevant N20 or N55 S55 application
  • Spark plug tube seals
  • Torx screws for the actuator mounting and cover fixings
  • Injector seals and injector decouplers where applicable

Quantities and exact references vary by engine and chassis, so please contact us if you would like a tailored parts list.

Installation and support

Professional fitting is recommended due to the need to correctly align the drive and initialise the system. For expert installation, choose MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Fitment check before dispatch

We will verify compatibility before shipping. Add your UK registration number or the last 7 of your VIN at checkout and we will confirm this actuator suits your specific vehicle.

Manufactured by

BMW

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided at checkout on compatible vehicles.

Search terms our customers use

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