Genuine OEM 13907643106 - Emission Check Valve

Product Overview

This Genuine OEM 13907643106 emission check valve is a factory-specification component designed to regulate exhaust backflow and maintain proper emission system function across a wide range of BMW models from 2017 to 2026. The valve serves as a critical component in the vehicle's positive crankcase ventilation (PCV) and emission control systems, preventing undesired gas flow and protecting engine integrity. As an OEM part, it meets BMW's exact engineering standards and carries the reliability expected from factory-original components.

This emission check valve is sold individually. Verify your specific model year and engine configuration using the vehicle selector tool above to ensure correct fitment.

Symptoms of a Failing Emission Check Valve

• Check Engine light or emission-related diagnostic trouble codes (DTCs)
• Rough idle or hesitation during acceleration
• Increased oil consumption or visible oil residue in the intake manifold
• Loss of fuel economy or reduced engine performance
• Hissing or whistling sounds from the engine bay during idle or deceleration

Cross Reference Numbers

This Genuine OEM 13907643106 emission check valve is equivalent to or replaces the following part numbers: 13-90-7-643-106, 13907643106.

Vehicle Compatibility

This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.

• BMW 2 Series (F22, G42): 2017–2026 (multiple configurations)
• BMW 3 Series Sedan (F30, G20): 2017–2025 (multiple engines and drivetrains)
• BMW 3 Series Gran Turismo (F34): 2017–2019
• BMW 4 Series (F32, F33, F36, G26): 2017–2025 (Coupe, Convertible, Gran Coupe)
• BMW 5 Series Sedan (G30): 2017–2026 (multiple engines including PHEV and MHEV)
• BMW 6 Series (F12, F13, F06): 2017–2019
• BMW 8 Series (G15, G14, G16): 2020–2025 (Coupe, Convertible, Gran Coupe)
• BMW M2 (F87, G87): 2018–2025
• BMW M240i (F22, F23): 2018–2019
• BMW M340i (G20): 2020–2025
• BMW M4 (G82): 2022–2024
• BMW M440i (G26): 2022–2025
• BMW X3 (F25, G01, F97): 2018–2025 (including M variants)
• BMW X4 (F26, G02, F98): 2019–2025 (including M variants)
• BMW X5 (F15, G05, F95): 2020–2025 (multiple configurations)
• BMW X6 (F16, G06, F86, F96): 2020–2023
• BMW X7 (G07): 2020–2023
• BMW Z4 (E89, G29): 2019–2025

This may also fit other applications. Please use the vehicle selector tool to verify fitment.

Often Replaced Together

For a complete emission system service, many owners replace the following at the same time:

• PCV hoses and breather lines
• Intake manifold gaskets
• Crankcase ventilation filter (if equipped)
• Engine oil and filter

Why Shop at eEuroparts.com?

• Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
• Fitment Confidence: Our accurate cataloging ensures you get the right part the first time, backed by our fitment guarantee.
• Fast, Reliable Shipping: Most in-stock orders ship the same or next business day from our U.S.-based warehouse.
• Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
• Exclusive Kits That Fit™: Complete repair solutions with no guesswork.
• Established Trust: Serving the European car community since 2000.

Frequently Asked Questions

How do I know if my BMW's emission check valve needs replacement?

Common signs of a failing emission check valve include a Check Engine light, rough idle, loss of fuel economy, increased oil consumption, and hissing sounds from the engine bay. If you notice any of these symptoms, have your vehicle scanned for emission-related diagnostic codes. A technician can confirm whether the check valve or another component in the PCV system is at fault.

What is an emission check valve and why does my BMW need it?

An emission check valve, also called a check valve or one-way valve, is part of your BMW's positive crankcase ventilation (PCV) system. It allows gases to flow in one direction only, preventing harmful backflow from the intake manifold into the crankcase. This protects your engine from contamination and ensures compliance with emission standards. Without a functioning check valve, you may experience oil sludge buildup, rough running, and failed emission tests.

Is this a Genuine BMW part?

Yes. This 13907643106 is a Genuine OEM part manufactured to BMW's factory specifications. It carries the same quality assurance and engineering precision as the part installed at the dealership, and it is backed by BMW's reputation for reliability. Using genuine parts ensures compatibility with your specific model year and engine configuration.

Will this check valve fit my 2020 BMW X5 xDrive40i?

This part is compatible with the 2020 BMW X5 xDrive40i equipped with the 3.0 L6 engine. However, always use the vehicle selector tool above to confirm fitment for your exact vehicle, as engine options and configurations can vary. If you need additional help verifying compatibility, our fitment team is available to assist.

How long does an emission check valve typically last?

Emission check valves are generally durable components designed to last the life of the vehicle under normal operating conditions. However, they can fail prematurely due to carbon buildup, contamination, or wear. If your BMW shows symptoms of check valve failure, it is best to have it inspected and replaced promptly to prevent damage to other emission system components and to maintain fuel economy and engine performance.

Can I replace this check valve myself, or do I need a technician?

Replacing an emission check valve requires removing intake manifold components and may involve breaking gaskets that will need to be replaced. Depending on your BMW model and engine configuration, the job can range from moderately involved to complex. If you have experience with engine work and the proper tools, you can tackle this repair. Otherwise, professional installation by a BMW technician is recommended to ensure proper sealing and system function.

Order Genuine OEM 13907643106 today. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your BMW.

Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.