Sumyola N20 Valve Cover Kit for BMW N20B20 2012–2016 — OE-fit, gasket & bolts, leak-tested

Sumyola's N20 valve cover kit is a complete, OE-fit replacement for BMW 2.0L N20 turbo engines (2012–2017), including cover, gasket, and bolts to restore a reliable, oil-tight seal.

This Sumyola N20 valve cover kit is engineered as a direct replacement for BMW vehicles equipped with the N20B20 2.0L turbo engine. It replaces OEM part number 11-12-7-588-412 and is intended for specific 2012–2016 models such as 125i, 228i, 320i, 328i, 420i, 428i, 520i, 528i, X1, X3, X4, and Z4. Manufactured in a certified facility with OE-supply experience, the kit arrives ready to install and includes a gasket and mounting bolts, removing the guesswork during service.

Which BMW models and years will this cover fit correctly?

This valve cover is made for BMW N20 2.0L turbo engines from the 2012–2016 model years. It matches the OEM fit and function for a long list of BMW models but excludes later B48 engines and certain emissions-specific variants.

• Fits N20 2.0L turbo: 125i, 228i, 320i, 328i, 420i, 428i, 520i, 528i, X1, X3, X4, Z4 (2012–2016).
• Replaces OEM #11127588412 (11-12-7-588-412).
• Not compatible with 2016+ B48 engines, N26 SULEV variants, X3 28i after 2015, or diesel models.
• VIN-fitment verification available to confirm match before installation.

How does Sumyola ensure this replacement avoids oil leaks and spark-plug tube seepage?

Each Sumyola cover is manufactured from advanced composite materials for improved thermal stability and oil resistance. Units undergo individual pressure/leak testing and precision machining at sealing surfaces to reduce the common failure points that allow oil into spark plug wells.

• Advanced composite resists heat cycling and oil degradation.
• Individual leak-tested for oil-tight performance before shipping.
• Precision-machined sealing surfaces to minimize spark-plug tube leaks.
• Comes with OEM-style gasket and bolts for consistent compression.

Is installation straightforward and will I need extra parts or modifications?

Yes — the kit is intended as a bolt-on OEM replacement with the same form, fit, and function as the factory part. It includes the valve cover, gasket, and bolts, so no extra cover-specific parts are required, though any associated components removed during service should be inspected separately.

• Direct OEM-fit design; no trimming or adapter parts needed.
• Complete kit contains cover, gasket, and mounting bolts.
• Follow manufacturer torque specs and routine inspection of PCV and ignition components.
• Non-matching parts are eligible for refund with no restocking fee.

What warranty and support options come with this Sumyola kit?

The kit is backed by a one-year comprehensive warranty covering manufacturing defects and includes access to in-house technical support and installation guidance. The manufacturer emphasizes quality control and offers assistance if fitment or performance issues arise.

• 1-year warranty against manufacturing defects.
• In-house technical support available for installation questions.
• Refunds offered for non-matching parts; VIN check helps avoid fitment errors.
• Manufactured in a certified 50,000 m² facility with OE-supply experience.

Who is this for: The Sumyola N20 valve cover kit is ideal for BMW owners, independent mechanics, and repair shops working on N20-equipped 2.0L turbo engines from model years 2012–2016 who want a direct-fit replacement with tested sealing performance. Choose this kit if you need a drop-in cover with gasket and bolts included, expect OE-like fit and finish, and prefer a product from a certified manufacturer backed by a one-year warranty and technical support.