BMW N55 Performance Engine Parts

Shop performance and replacement parts for the BMW N55 engine (3.0L single twin-scroll turbo inline-6), found in the BMW 335i, 435i, M235i, 535i and X5 35i. Browse engine, turbo and intake upgrades, exhaust, clutches, fuel, ignition, cooling, mounts and more from top aftermarket brands.

Building a high-boost N55? EPOXY54 block filler is a two-part epoxy (21,000 psi compressive strength) that reinforces open-deck blocks like the N55 to closed-deck strength without machining, with a Partial Fill option that keeps OEM coolant flow. Learn more in N55 Closed Deck Alternative: Reinforce Your BMW N55 Block Without Machining.

Confirm fitment for your exact year, model and trim on each product page before ordering.

BMW N55 FAQ (5 questions)

What cars use the BMW N55 engine?

The BMW N55 (3.0L single twin-scroll turbo inline-6) is found in the BMW 335i, 435i, M235i, 535i and X5 35i. Always check the year, model and trim fitment table on each product page.

What are the most popular N55 upgrades?

Popular N55 upgrades include charge pipes, intercoolers, downpipes, intakes, ignition coils and spark plugs, and ECU tuning. Browse every category for the BMW N55 using the category list on this page.

Can I reinforce my N55 block for high boost?

Yes. EPOXY54 block filler is a two-part epoxy (21,000 psi compressive strength) that reinforces open-deck blocks like the N55 to closed-deck strength without machining, with a Partial Fill option that keeps OEM coolant flow.

How do I make sure a part fits my N55?

Every part on this page is listed by the manufacturer for the BMW N55. Check the fitment table on the product page and match the manufacturer part number. Save your engine with the engine selector to see a “Fits your BMW N55” badge on parts, or use Ask an expert if you’re unsure.

How fast do N55 parts ship?

In-stock parts ordered before 2:30pm Pacific ship the next business day, and Friday orders placed before noon ship the same day. Special-order parts ship from the manufacturer; use Request ETA on the product page for a date.