{"product_id":"dvparts-4-blue-oiled-cold-air-intake-filter-4-id-reusable-washable-replacement-pre-oiled","title":"DVPARTS 4\" Blue Oiled Cold-Air Intake Filter — 4\" ID Reusable Washable Replacement (Pre-Oiled)","description":"\u003cp\u003e\u003cstrong\u003eHigh-flow 4-inch blue oiled intake filter by DVPARTS is a washable, reusable replacement designed to fit Rudy's and other 4\" ID cold-air intakes for many Ford Super Duty Powerstroke diesels (1999–2021).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis DVPARTS replacement filter (DP0235 and compatible part numbers) offers a straightforward way to restore airflow and filtration for 4\" cold-air systems. It arrives pre-oiled and ready to install, and it’s designed specifically for applications that require a 4\" inlet diameter. The construction emphasizes repeatable cleaning and reuse so you can keep your intake performing without frequent replacements.\u003c\/p\u003e\n\n\u003ch3\u003eWill this filter fit my 4\" Rudy's cold-air intake?\u003c\/h3\u003e\n\u003cp\u003eYes — the filter is manufactured to the 4\" inside-diameter specification used by Rudy's cold-air intakes, and it also suits many other intakes that accept a 4\" ID element. Confirm the inlet diameter on your intake before ordering to ensure a correct seal and fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Rudy's 4\" intakes and other systems accepting 4\" ID filters\u003c\/li\u003e\n  \u003cli\u003eCompatible mounting profile for direct swap installations\u003c\/li\u003e\n  \u003cli\u003ePre-oiled for immediate use after fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I clean and maintain this reusable oiled filter?\u003c\/h3\u003e\n\u003cp\u003eCleaning is simple: remove the filter, use a filter-specific cleaner to remove dirt and old oil, rinse thoroughly with low-pressure water, let it dry completely, then reapply filter oil evenly. Routine cleaning intervals depend on driving conditions; inspect the filter visually after heavy off-road or dusty use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse dedicated air-filter cleaner and low-pressure water rinse\u003c\/li\u003e\n  \u003cli\u003eAllow full air-dry before re-oiling to prevent trapping contaminants\u003c\/li\u003e\n  \u003cli\u003eReapply thin, even oil layer for consistent filtration performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and engines is this filter compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis DVPARTS filter is specified for many Ford Super Duty trucks equipped with Powerstroke diesel engines from 1999 through 2021. It covers F-250, F-350, F-450 and F-550 model families when the vehicle uses a qualifying 4\" intake system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Ford F-250\/F-350\/F-450\/F-550 Powerstroke diesels\u003c\/li\u003e\n  \u003cli\u003eFits 7.3L, 6.0L, 6.4L, 6.7L and 6.6L engines where a 4\" intake is used\u003c\/li\u003e\n  \u003cli\u003eReplacement for part numbers DP0235, DP0091, DP0173, and related codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits of choosing this DVPARTS replacement?\u003c\/h3\u003e\n\u003cp\u003eOpting for a washable, reusable oiled filter lowers long-term upkeep costs while preserving airflow essential to cold-air systems. The pre-oiled element simplifies initial installation, and the durable media is intended for multiple cleaning cycles without losing fitment or function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReusable design cuts replacement frequency and expense\u003c\/li\u003e\n  \u003cli\u003ePre-oiled for quick installation and immediate protection\u003c\/li\u003e\n  \u003cli\u003e4\" inlet diameter maintains designed airflow for cold-air setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DVPARTS 4\" blue oiled replacement filter is aimed at truck owners and mechanics who run Rudy's or any compatible 4\" cold-air intake on Ford Super Duty Powerstroke diesels and want a durable, serviceable filter solution. It's a practical pick for drivers who prefer maintaining factory-fit airflow while reducing recurring filter purchases, and for shops servicing 1999–2021 Powerstroke-equipped trucks that use a 4\" intake element.\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: Does this DVPARTS filter come pre-oiled?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the filter arrives pre-oiled so it’s ready to install immediately after unpacking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the filter compatible with non-Rudy's 4\" intakes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it fits other systems that accept a 4\" ID air filter, provided the inlet and mounting match.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DVPARTS","offers":[{"title":"Default Title","offer_id":67587329196217,"sku":"B0FCMKFC7Z","price":103.63,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/dvparts-front-packaging-blue-4-inch-filter.jpg?v=1790506314","url":"https:\/\/redleafauto.ca\/products\/dvparts-4-blue-oiled-cold-air-intake-filter-4-id-reusable-washable-replacement-pre-oiled","provider":"Redleaf Auto","version":"1.0","type":"link"}