Description
Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.
The Cylinder Head Cover (also known as the rocker or valve cover) with OEM part number 11128575408 / 8575408 is a vital engine component for specific BMW diesel models — especially those fitted with the B57 engine. It seals the top of the engine’s cylinder head, housing the camshafts and valves while helping contain oil and protect internal valvetrain parts from dirt, debris and fluid loss. When the original cover becomes warped, cracked or brittle due to age and heat cycles, it can cause oil leaks, rough running and low oil pressure — issues that this high-quality replacement is engineered to address.
Compatible models include late-model BMW 5 Series (G30/G31) M550dX, 7 Series (G11/G12) 750dX/750LdX, and SUVs like X5 (G05) M50dX, X6 (G06) M50dX and X7 (G07) M50dX from roughly 2015–2019 when fitted with the appropriate diesel engines.
OEM Number: 11128575408, 8575408
CYLINDER HEAD ENGINE VALVE COVER FOR G30 G31 G11 G12 G05 G06 G07 8575408
Quantity : 1
Our SKU: TB11128575408_313
For the Following Cars :
BMW 5 SERIES G30 M550dX (10/2016 – 12/2019)
BMW 5 SERIES G31 M550dX (11/2016 – 12/2019)
BMW 7 SERIES G11 LCI 750dX (02/2018 – 12/2019)
BMW 7 SERIES G11 750dX (09/2015 – 02/2019)
BMW 7 SERIES G12 LCI 750LdX (01/2018 – 12/2019)
BMW 7 SERIES G12 750LdX (10/2015 – 02/2019)
BMW X5 G05 M50dX (09/2017 – 12/2019)
BMW X6 G06 M50dX (06/2018 – 12/2019)
BMW X7 G07 M50dX (11/2017 – 12/2019)
All our Cylinder Head Cover Rocker Cover For BMW 5 7 Series X5 X6 X7 11128575408 are OEM quality and reliable after market car parts. This Cylinder Head Cover Rocker Cover For BMW 5 7 Series X5 X6 X7 11128575408 is specifically compatible with .
Please use our make-model-year tool to check this part’s compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.
Key Benefits
-
OEM-Referenced Fit: Direct replacement for BMW part 11128575408 / 8575408, ensuring a proper fit on compatible 5/7 Series and X5/X6/X7 vehicles with B57 diesel engines.
-
Protects Internal Engine Components: Seals the cylinder head to prevent oil leaks, contamination and pressure loss, helping maintain proper lubrication of camshafts and rocker gear.
-
Improves Engine Performance: Replacing a cracked or damaged valve cover helps eliminate rough idling, smoke or burning oil smells often caused by oil seepage into hot engine areas.
-
Durable Aftermarket Quality: Built to match OEM structural strength and heat resistance for long-term reliability.
-
Essential for Engine Maintenance: Often replaced along with valve cover gaskets and PCV components during routine engine servicing or leak repair. Two complementary gasket references are 11128511814 (cover gasket) and similar OEM sets recommended when installing a new cover.
Frequently Asked Questions (FAQs)
Q1: What is a cylinder head/rocker cover?
A: It’s the engine’s upper cover over the cylinder head, sealing the valvetrain and keeping oil contained while protecting camshafts and valves. It’s essential for clean, efficient lubrication and preventing leaks.
Q2: Which BMW models use part 11128575408?
A: This cover fits several BMW diesel-powered models including 5 Series G30/G31 M550dX, 7 Series G11/G12 750dX & 750LdX, and X5 G05, X6 G06, X7 G07 M50dX (production years mostly in the 2015–2019 range). Always confirm compatibility with your vehicle’s VIN or engine code.
Q3: What are signs the rocker cover needs replacing?
A: Oil leaks around the valve cover seam, burning smells, visible oil on the engine block, rough idle or low oil pressure can all indicate a cracked or worn cover and warrant replacement.
Q4: Should I replace the gasket too?
A: Yes – it’s strongly recommended to fit a new valve cover gasket when replacing the rocker cover to ensure a proper seal and prevent future leaks.
Q5: Is this suitable for petrol engines?
A: This specific part number is typically for diesel-B57 engines in the listed BMW models. Petrol engines usually use different valve cover designs and OEM numbers.
Explore more from our collection.
Reviews
There are no reviews yet.