{"product_id":"perko-0540dpg99a-cap-o-ring-and-retainer-for-vented-fuel","title":"Perko chrome-plated fuel cap assembly for 1-1\/2\" angled-neck vented gas fills with O-ring and retainer chain","description":"\u003cp\u003e\u003cstrong\u003ePerko 0540DPG99A is a chrome-plated replacement fuel cap assembly with O-ring, retainer, and vented flame-arrestor designed for 1-1\/2\" angled-neck gas fills.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket Perko cap set restores a secure, vented fill point on boats and vessels using a 1-1\/2\" angled-neck gas fill. It pairs a durable chrome-plated bronze cap and a black plastic body with an integral vent and anti-surge valve to manage pressure while helping reduce fuel spillage during filling and movement. The package includes a beaded stainless steel retainment chain and a deck plate key to install and remove the cap.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cap maintain ventilation while preventing spills?\u003c\/h3\u003e\n\u003cp\u003eThe Perko cap features an integral tank vent combined with a flame arrestor and an anti-surge valve. This arrangement allows tank vapors to vent safely while the anti-surge mechanism helps minimize fuel loss during rough conditions or sudden movement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntegral vent for controlled pressure relief\u003c\/li\u003e\n  \u003cli\u003eFlame arrestor reduces ignition risk from external sources\u003c\/li\u003e\n  \u003cli\u003eAnti-surge valve limits fuel ejection during motion\u003c\/li\u003e\n  \u003cli\u003eO-ring ensures a tighter seal to limit leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and components are included, and why do they matter?\u003c\/h3\u003e\n\u003cp\u003eThe assembly combines metal and engineered plastic so you get corrosion resistance and a secure thread fit. The chrome-plated bronze cap offers a durable, attractive finish; the black plastic body resists degradation from fuel and weather; and the stainless steel chain resists rust where retainment is critical.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChrome-plated bronze cap for corrosion resistance and long life\u003c\/li\u003e\n  \u003cli\u003eBlack plastic body that tolerates fuel exposure\u003c\/li\u003e\n  \u003cli\u003eStainless steel beaded chain to keep the cap attached to the deck\u003c\/li\u003e\n  \u003cli\u003eDeck plate key included for secure installation and removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cap fit my fuel fill—what should I check before ordering?\u003c\/h3\u003e\n\u003cp\u003eThis Perko assembly is made for 1-1\/2\" angled-neck vented fills used with gasoline. Before purchasing, confirm your fill neck is the angled 1-1\/2\" size and that your application requires a vented cap. Always cross-reference Perko part numbers or your vessel manufacturer’s recommendations for compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned specifically for 1-1\/2\" angled-neck vented gas fills\u003c\/li\u003e\n  \u003cli\u003eCheck existing neck dimensions and vent requirements first\u003c\/li\u003e\n  \u003cli\u003eCompare Perko part number to original equipment when possible\u003c\/li\u003e\n  \u003cli\u003eNot for non-vented or differently sized fill necks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain the Perko 0540DPG99A assembly?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward with the included deck plate key: remove the old cap and replace the assembly, making sure the O-ring seats correctly. Routine maintenance includes inspecting the O-ring, cleaning the flame arrestor openings, and checking the chain and fasteners for corrosion.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse included deck plate key to tighten and loosen cap\u003c\/li\u003e\n  \u003cli\u003eSeat O-ring firmly to maintain a fuel-tight seal\u003c\/li\u003e\n  \u003cli\u003eClean flame arrestor and vent passages periodically\u003c\/li\u003e\n  \u003cli\u003eReplace O-ring or chain if wear or corrosion appears\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Perko 0540DPG99A is suited for boat owners, marine mechanics, and anyone needing a direct-fit replacement for a 1-1\/2\" angled-neck vented gasoline fill. Choose this assembly when you want a durable, vented cap with a flame arrestor, anti-surge valve, and retainment chain to restore safe, code-conscious fuel access on small to medium vessels.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cap compatible with non-angled fuel necks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the Perko 0540DPG99A is designed for 1-1\/2\" angled-neck vented fills only. Check neck type before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include an installation key?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. A deck plate key is included for installing and removing the cap assembly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Perko","offers":[{"title":"Default Title","offer_id":48030142070945,"sku":"B000KOW676","price":133.87,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/perko-0540dpg99a-front-view.jpg?v=1791395852","url":"https:\/\/canadiansporting.ca\/products\/perko-0540dpg99a-cap-o-ring-and-retainer-for-vented-fuel","provider":"Canadian Sporting","version":"1.0","type":"link"}