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BMW emissions system hardware plays a crucial role in reducing harmful pollutants, ensuring compliance with emissions regulations, and maintaining optimal engine efficiency. This category includes essential components such as oxygen sensors, EGR valves, catalytic converter brackets, mounting hardware, and exhaust clamps. Over time, emissions system hardware can wear out, corrode, or fail due to heat exposure, carbon buildup, or exhaust leaks, leading to issues such as reduced fuel efficiency, increased emissions, check engine lights, or failed emissions tests. Common problems include loose or broken mounting brackets, clogged EGR valves, and failing O2 sensors, which can negatively impact engine performance and emissions control. Replacing worn or damaged BMW emissions system hardware with high-quality, OEM or aftermarket parts restores proper exhaust function, reduces emissions, and ensures compliance with environmental standards.

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Genuine BMW Crankcase Ventilation Hose

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T#:528022

Part#: 11157848340

Ships in 3 Business Days

5% off MSRP $ 108.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 103.99 USD

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5% off MSRP

$ 108.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 103.99 USD

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This ventilation connecting pipe guides the gases in the PCV system back into the valve cover. Plastic pipes exposed to constantly varying temperatures tend to become weak and crack over time. If yours has split, it may allow gases to escape possibly resulting in poor fuel economy, engine misfires, hissing noises under the hood, and will usually cause the check engine light to illuminate.

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Genuine BMW Valve Zyl. 1-5 - 11727837096 -E60 M5,E63 M6

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T#:37474

Part#: 11727837096

Ships in 3 Business Days

2% off MSRP $ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 190.99 USD

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2% off MSRP

$ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 190.99 USD

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The EGR valve in your engine controls the amount of exhaust gas recirculated in your engine depending on the engine load. The failure of one can result in loss of power, reduced acceleration, and decreased fuel efficiency.

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1.5mm X 51mm Metric Buna-N 70 O-ring

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T#:388889

Part#: N1.50X051

In Stock

Sale - Save 25% $ 5.99

This product was last offered at the strikethrough price on
06-13-2026

$ 4.49 USD

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Sale - Save 25%

$ 5.99

This product was last offered at the strikethrough price on
06-13-2026

$ 4.49 USD

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1.5mm X 51mm Metric Buna-N 70 O-ring is the perfect sealing solution for various industrial applications. Made from high-quality Buna-N material, this O-ring provides reliable sealing performance, ensuring leak-free connections. With its metric sizing and 70 durometer hardness, it offers versatility and durability for a wide range of uses.

High-quality Buna-N material
Reliable sealing performance
Metric sizing for versatility
70 durometer hardness for durability

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Stainless Steel Oxygen Sensor (O2) Weld Bung (M18x1.5mm) - Priced Eac...

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T#:637408

Part#: 028092ECS11AKT

In Stock

Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD

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Sale - Save 25%

$ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD

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Upgrade your exhaust system with the Stainless Steel Oxygen Sensor (O2) Weld Bung (M18x1.5mm). This high-quality weld bung is made from stainless steel, ensuring durability and resistance to corrosion. It features M18x1.5mm threads, making it compatible with most oxygen sensors. Perfect for custom exhaust setups or replacing damaged bungs, this weld bung is a must-have for any automotive enthusiast.