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Exterior Components› Body Panels and Components

BMW

Rear Bumper Diffuser

Name: Rear Bumper Diffuser
Brand: BMW
SKU: 51122233364

$228.50 $203.85 Save $24.65

SKU: 51122233364

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Overview

The Genuine BMW Rear Bumper Diffuser Insert is a direct replacement part for the E36 M3. This black plastic apron insert is designed to fit all E36 M3 Coupe, Convertible, and Sedan models from 1995 to 1999.

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The BMW 51122233364 is a genuine BMW rear bumper diffuser, serving as a direct replacement for your vehicle's original trim panel. This part is manufactured in Germany and adheres to BMW's stringent quality standards, ensuring it provides the proper fit and finish expected from a Genuine BMW component. This rear bumper diffuser is specifically designed for various BMW E36 models, including the 318i, 318is, 323i, 325i, 328i, and M3 variants, across different engine displacements and submodels. A key requirement for fitment is that the vehicle must be equipped with the M-Technic Rear Bumper. The fitment details provided by ECS Tuning indicate compatibility with specific engine and submodel combinations within the E36 chassis, and customers are advised to use the vehicle selector to confirm precise fitment for their specific M3. One reviewer recommends replacing the plastic clips, screws, and plastic nut holding the diffuser at the same time as installation for optimal results. The product is backed by ECS Tuning's Lifetime Replacement Program.

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.

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Specifications

Brand	BMW
Part Number	51122233364
Category	Exterior Components

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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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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.

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