BMW 11427625486 Oil Cooler Gasket Engine Repair Kit OEM

1.Specifications

2.Material Composition

• Main Materials:

  • Fluorocarbon Rubber (FKM/Viton): Resistant to high temperatures (-20°C to 250°C), oil, and chemicals, ensuring long-term sealing performance.

  • Metal Skeleton: Typically stainless steel or zinc-plated steel for structural strength and stability.

• Auxiliary Coating: Some models may feature a PTFE (Teflon) coating to reduce friction and extend valve guide life.

OEM Standards: Complies with BMW’s original material specifications and is compatible with BMW engine oils (e.g., BMW LL series).

3.Production Process

• Precision Injection Molding: FKM is molded under high pressure and temperature, bonded to the metal skeleton.

• Post-Curing: Eliminates internal stress, enhancing elasticity and durability.

• Laser Inspection: 100% dimensional check of the sealing lip (tolerance ±0.05mm) for proper valve stem fit.

• Surface Treatment: Anti-corrosion coating on metal parts; rubber surfaces are burr-free.

4.Installation Method

Replacement Steps (Professional Tools Required):

1. Disassembly:

   • Remove the valve cover, camshaft, and use a valve spring compressor to release the valve locks/springs.

2. Removing Old Seal:

   • Extract the old valve stem seal using a specialized puller or needle-nose pliers; clean the valve guide seat.

3. Installing New Seal:

   • Lightly lubricate the new seal’s inner lip with engine oil, then press it in vertically using an installation sleeve (e.g., BMW tool #113450) to avoid misalignment.

4. Reassembly:

   • Reinstall valve springs and locks, then torque camshaft bolts to spec (e.g., N52 engine: 20Nm + 90° turn).

   • 5.Vehicle Compatibility Chart

     Engine Code	Engine Type	Model Applications	Production Years	Notes
     N63B44O0	4.4L V8 TwinPower Turbo	F10 550i, F12 650i, F13 650i, F15 X5 50i, F16 X6 50i	2013-2018	Includes N63TU version
     N63B44T0	4.4L V8 TwinPower Turbo (Upgraded)	G30 540i, G12 740i, G05 X5 50i, G07 X7 50i	2018-2022	N63TU2/TU3 engines
     S63B44T4	4.4L V8 TwinPower Turbo (M)	F90 M5, F95 X5 M, F96 X6 M	2018-2023	High-performance variant
     N74B66TU	6.6L V12 TwinPower Turbo	G12 760Li, Rolls-Royce Ghost/Phantom/Dawn	2016-2023	RR models require VIN verification