11367506178 11367546379 Engine VVT Valve O-ring For BMW N20 N26 N46 B48 N55 B58

1. Product Overview

VVT Valve O-ring for BMW Engines
These high-performance O-rings are designed for BMW's Variable Valve Timing (VVT) system, ensuring precise sealing between the VVT valve and engine components. Made from durable, heat-resistant rubber, they prevent oil leaks and maintain optimal hydraulic pressure for smooth VVT operation.

Key Features:

• Material: Fluorosilicone or HNBR (Hydrogenated Nitrile Butadiene Rubber) for superior heat/oil resistance.

• Temperature Range: -40°C to +200°C (-40°F to +392°F).

• Pressure Resistance: Withstands up to 10 MPa (1,450 psi).

• Precision Fit: Exact OEM specifications for seamless integration.

• Longevity: Resists aging, cracking, and chemical degradation from engine oils.

2. Vehicle Compatibility Table

Note: Always verify compatibility using your VIN. Some models may require additional gaskets.

3. Function & Working Principle

• Purpose: Seals the VVT valve assembly to prevent oil leaks, ensuring stable hydraulic pressure for camshaft timing adjustments.

• Principle: The O-ring creates an airtight barrier between the VVT solenoid and engine block, allowing precise oil flow control to advance/retract camshaft timing.

• Failure Impact: A worn O-ring causes oil leaks, leading to erratic valve timing, poor performance, or check engine lights (e.g., BMW fault code 2A82).

4. Installation Notes

• Tools Required: Torx screwdriver, pick tool.

• Steps:

  1. Remove the VVT solenoid.

  2. Replace the old O-ring (avoid twisting).

  3. Lubricate with clean engine oil before reassembly.

5.Why Choose Our VVT Valve O-Rings?

1. Premium Material Engineering

• Manufactured with German-spec FKM (Fluoroelastomer) rubber that outperforms standard NBR in:

  • 30% better heat resistance (up to 230°C/446°F)

  • 3x longer lifespan in turbocharged engines

  • Superior resistance to modern BMW LL-04 synthetic oils

2. Precision OEM Fitment

• Laser-measured dimensional accuracy (±0.01mm tolerance)

• Direct replacement for BMW OEM parts 11 36 7 506 178 & 11 36 7 546 379

• Includes installation groove alignment marks for error-free fitting

3. Performance Validation

• 100% pressure tested at 15 bar (217 psi) - 50% above industry standard

• Validated for 500,000+ actuation cycles in BMW's VVT system

• Pre-lubricated with PTFE coating for immediate seal effectiveness

4. Technical Advantages Over Competitors