Sale

BMW Turbo

Catalytic Converter Gasket

$29.85 $18.99 Save $10.86

SKU: 18307581970

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Genuine BMW catalytic converter gasket, part number 18307581970, is a direct-fit replacement designed to create a tight seal between the turbocharger and the catalytic converter. This ensures that exhaust gases are properly directed through the catalytic converter for emissions control, preventing leaks that can cause audible hissing or popping sounds, especially during acceleration. Its primary function is to prevent the escape of exhaust gases at the connection points, thereby ensuring the catalytic converter operates efficiently to reduce harmful emissions. Symptoms of a failed catalytic converter gasket can include noticeable exhaust leaks, characterized by unusual sounds, and a strong exhaust odor due to unprocessed pollutants escaping before being treated. Replacing a faulty gasket is essential for maintaining proper exhaust system function and environmental compliance. This gasket is compatible with a wide range of BMW models, including various 3 Series (328i), 5 Series (528i, 528i xDrive), X1, and Z4 variants from model years 2012 through 2026, covering multiple engine configurations such as N20B20A, N26B20A, B46A20B, and B48A20O2/T1 engines.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBMW Turbo
Part Number18307581970
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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