BMW 3 Series G20/G21 (Saloon/Sedan & Touring) M340i & M340i xDrive Rear Lower Trim – High Gloss/Piano Black Valance Apron/Skirt Diffuser Surround Bumper Garnish Shadowline | Genuine BMW OEM M Performance 51192455859

Original BMW rear lower apron trim in piano black for G20 and G21 M340i models

Give the tail end of your 3 Series a sharper, motorsport look with this factory BMW M accessory finished in deep piano black. This rear skirt garnish is an original equipment component that integrates seamlessly with the diffuser area on the 3er saloon and touring in M340i and M340i xDrive form. OE reference: 51192455859.

Why this BMW M upgrade is a winner

• Authentic BMW part for perfect alignment and a true factory appearance
• High sheen black finish that ties in with Shadowline styling and other gloss accents
• Transforms the rear fascia with a more assertive, performance-driven look
• PUR construction for durability that resists UV, heat and moisture
• Direct-fit design for the M340i specific rear end for reliable, rattle-free fitment
• Complements performance exhaust surrounds and carbon or gloss diffusers

Built from premium PUR, this rear apron moulding is engineered for real-world use. It keeps its gloss, resists weathering and looks OE fresh wash after wash. We have installed this trim on customer cars and our own builds and the feedback has been consistently excellent. Expect tight panel gaps, a rich gloss finish and a noticeable visual lift without looking aftermarket.

Compatibility

• BMW 3 Series G20 saloon production approx. 10/2017 to 12/2019
  • M340i and M340i xDrive
• BMW 3 Series G21 touring production approx. 05/2018 to 12/2019
  • M340i xDrive

Fits vehicles equipped with the M340i style rear bumper. If you are unsure about compatibility, use our free fitment check before purchase.

What you receive

1 x Original BMW gloss black rear lower trim piece in PUR. Diffuser not included and may be required separately depending on your current setup.

Part number

51192455859

Fitment verification

We confirm compatibility prior to dispatch. Add your UK registration or the last 7 characters of your VIN at checkout to ensure it suits your vehicle.

Fitting service

Professional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Warranty

Two year manufacturer warranty for UK customers and one year for international customers when a compatible VIN is supplied at checkout.

Search phrases customers use

BMW G20 rear skirt trim, BMW G21 touring tail apron, M340i xDrive tail panel gloss black, BMW 3er rear diffuser surround, BMW performance rear fascia insert, BMW M340i lower valance black, OEM BMW rear garnish, original equipment 51192455859, BMW 3 Series rear styling piece, BMW 3 Series G20 rear apron moulding, M340i rear skirt gloss, BMW G20 bumper garnish black, BMW 3 Series performance body styling, BMW G21 lower diffuser frame, factory M accessory rear trim, BMW M340i styling upgrade UK.