{"product_id":"nrw-design-bmw-billet-oil-cap","title":"NRW-Design BMW Billet Oil Cap","description":"\u003cdiv class=\"pdp2-product-tabs__description rte\"\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/nrw-design\"\u003eNRW-Design\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eBMW Billet Oil Cap was engineered to address one of the most common and persistent issues affecting BMW engines across multiple generations. From naturally aspirated M engines to modern turbocharged platforms, the factory plastic oil filler cap can allow oil seepage that leaves residue across the valve cover, even when replaced with a new OEM cap.\u003c\/p\u003e\n\u003cp\u003eThe issue became especially apparent during the development of NRW Design's aluminum S65 valve cover. In several cases, what initially appeared to be a valve cover leak was traced back to the factory oil cap. Replacing the original cap with a brand-new Genuine BMW component did not always resolve the problem, confirming that the factory cap design itself could remain a source of seepage.\u003c\/p\u003e\n\u003cp\u003eNRW Design initially developed its Ultimate Oil Cap as a multi-piece billet assembly with a threaded funnel attachment and an optional -10 ORB port for custom crankcase ventilation applications. While that design remains well suited for specialized builds, many BMW owners needed a simpler solution that retained the factory-style operation and appearance.\u003c\/p\u003e\n\u003cp\u003eThe NRW-Design BMW Billet Oil Cap was developed as a direct OEM-style replacement. Each cap is precision CNC-machined from a single piece of 6061-T6 billet aluminum and uses factory-style locking tabs with a dedicated gasket sealing surface. This construction provides improved rigidity, consistent engagement, and long-term durability compared to the original plastic cap.\u003c\/p\u003e\n\u003cp\u003eAvailable in hard anodized black or a raw machined finish, the cap features laser-etched NRW Design branding and is compatible with both OEM and NRW Design Viton oil cap gaskets. The understated design maintains a clean, period-correct appearance across older BMW M applications while also complementing modern engine bays.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the USA, the NRW-Design BMW Billet Oil Cap is included with current NRW Design valve covers and is also available separately for BMW owners looking to replace the factory oil filler cap with a durable billet aluminum alternative.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined from 6061-T6 billet aluminum\u003c\/li\u003e\n\u003cli\u003eSingle-piece billet construction\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the factory BMW plastic oil filler cap\u003c\/li\u003e\n\u003cli\u003eUses factory-style locking tabs for OEM-style operation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined gasket sealing surface\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM and NRW Design Viton oil cap gaskets\u003c\/li\u003e\n\u003cli\u003eAvailable in hard anodized black or raw machined finish\u003c\/li\u003e\n\u003cli\u003eLaser-etched NRW Design branding\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAlso fits many additional BMW applications using the same factory oil filler cap design.\u003c\/li\u003e\n\u003cli\u003eCompatible engine families include S65, S85, N54, N55, B58, S63 and other BMW engines with the corresponding factory-style cap interface.\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with the vehicle and engine before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdp2-product-tabs__specs\"\u003e\n\u003cdiv class=\"pdp2-product-tabs__spec-item\"\u003e\n\u003cspan class=\"pdp2-product-tabs__spec-value\"\u003eCNC-Machined Billet Construction\u003c\/span\u003e\u003cspan class=\"pdp2-product-tabs__spec-label\"\u003ePrecision CNC-machined from a single piece of 6061-T6 billet aluminum for exceptional strength, corrosion resistance, and long-term durability over the factory plastic oil cap.\u003c\/span\u003e\u003cspan class=\"pdp2-product-tabs__spec-line\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdp2-product-tabs__spec-item\"\u003e\n\u003cspan class=\"pdp2-product-tabs__spec-value\"\u003eOEM-Style Sealing Performance\u003c\/span\u003e\u003cspan class=\"pdp2-product-tabs__spec-label\"\u003eDesigned as a direct replacement, the billet oil cap uses factory-style locking tabs and is compatible with OEM and NRW Design Viton gaskets for a secure, leak-resistant seal.\u003c\/span\u003e\u003cspan class=\"pdp2-product-tabs__spec-line\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdp2-product-tabs__spec-item\"\u003e\n\u003cspan class=\"pdp2-product-tabs__spec-value\"\u003eBroad BMW Engine Compatibility\u003c\/span\u003e\u003cspan class=\"pdp2-product-tabs__spec-label\"\u003eDesigned to fit a wide range of BMW engines, including the S65, S85, N54, N55, B58, S58, S63, N20, and many additional applications utilizing the same factory oil cap design, making it an ideal OEM+ upgrade for numerous BMW platforms.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdp2-product-tabs__spec-item\"\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m2-competition-f87\"\u003eBMW F87 M2 Competition\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m3-e90\"\u003eBMW E90 M3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m3-e92-e93\"\u003eBMW E92 \/ E93 M3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m3-f80\"\u003eBMW F80 M3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m4-f82-f83\"\u003eBMW F82 \/ F83 M4\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m5-e60\"\u003eBMW E60 M5\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m6-e63\"\u003eBMW E63 \/ E64 M6\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NRW Design","offers":[{"title":"Black Anodized","offer_id":44018218664049,"sku":"BCAPNCB","price":184.99,"currency_code":"CAD","in_stock":true},{"title":"Raw Machined","offer_id":44018218696817,"sku":"BCAPNCR","price":184.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1088\/6742\/files\/nrw-design-bmw-billet-oil-cap-white-background-5.webp?v=1786480523","url":"https:\/\/www.parkautomotorsports.ca\/products\/nrw-design-bmw-billet-oil-cap","provider":"Park Auto Motorsports","version":"1.0","type":"link"}