N55 Turbo Inlet Gasket - E-Series

30 Day Money-Back Guarantee | IN STOCK HIGHLIGHTS • OEM Spec Replacement for BMW Part #13717599291 • Seals the Intake Tract to the N55 Turbo Inlet • Prevents Boost Leaks and Unmetered Air Intrusion • Fits E82 135i, E9X 335i, and E84 X1 35i — N55 3.0T PROFILE The BMW N55 Turbo Inlet Gasket is the O-ring seal that sits between the intake tract and the turbo inlet on the stock N55 turbocharger. BMW OEM part number 13717599291 is the correct gasket for the E9X 335i, E82 135i, and E84 X1 35i. This gasket is also used on N20 and N26 applications that reference the same part number. The ARM N55 Turbo Inlet Gasket creates an airtight seal between the intake boot and the turbo inlet so that all air entering the turbocharger is metered by the MAF sensor. When this gasket cracks, hardens, or is left out during service, unmetered air enters the intake tract before the turbo. The engine runs lean, boost becomes inconsistent, and throttle response suffers. Skipping this gasket during a turbo inlet install is one of the most common causes of post-installation boost leaks on the N55 platform. It costs little to replace and can save hours of diagnostic work. IN THE BOX • ARM N55 Turbo Inlet Gasket FITMENT GUIDE Also compatible with N20/N26 applications referencing OEM part #13717599291. Confirm fitment with your VIN if unsure. Make Model Submodel Engine BMW E82 135i N55 3.0L BMW E88 135i N55 3.0L BMW E82 135is N55 3.0L BMW E90 335i N55 3.0L BMW E90 335xi N55 3.0L BMW E92 335i N55 3.0L BMW E92 335xi N55 3.0L BMW E93 335i N55 3.0L BMW E84 X1 xDrive35i N55 3.0L FREQUENTLY ASKED QUESTIONS What does BMW part number 13717599291 fit? BMW part #13717599291 is the turbo inlet O-ring gasket for the N55 3.0T engine found in the E82 135i, E90/E92/E93 335i, and E84 X1 xDrive35i. It is also used on select N20 and N26 applications. Do I need to replace this gasket when installing an aftermarket turbo inlet? Yes. Any time the OEM or aftermarket turbo inlet is removed and reinstalled, this gasket should be replaced. Reusing an old or compressed gasket is a common cause of boost leaks after inlet installations. Is this gasket the same as the turbo-to-downpipe gasket? No. This gasket seals the intake side of the turbocharger, specifically between the intake tract and the turbo inlet. The turbo-to-downpipe gasket is a separate part on the exhaust side of the turbo. How many gaskets do I need? One. The N55 uses a single turbo inlet gasket at this location. This product is sold individually. ARM MOTORSPORTS LIFETIME WARRANTY Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit. This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.