{"product_id":"ifjf-4pcs-21-36-oil-cap-kit-for-dexter-9k-10k-12k-15k-axles-k71-148-00-4-0-inch-thread","title":"iFJF 4Pcs 21-36 Oil Cap Kit for Dexter 9K\/10K\/12K\/15K Axles – K71-148-00, 4.0-inch Thread","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe iFJF 4Pcs 21-36 Oil Cap Kit is a purpose-built replacement set designed for Dexter axles. This kit brings together four oil caps, four O-rings, and four rubber plugs—all packaged to refresh a dust-prone area that keeps your trailer system performing between maintenance checks. The parts are lightweight, corrosion-resistant, and built to endure regular use, offering a practical solution for roadside checks and routine service without guesswork.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e4 x 21-36 oil caps\u003c\/li\u003e\n  \u003cli\u003e4 x O-rings\u003c\/li\u003e\n  \u003cli\u003e4 x rubber plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility and specs\u003c\/h2\u003e\n\u003cp\u003eCompatible with Dexter 9K (AFTER 10-1-1989), 10K, 12K, and 15K axles. Note: it does not fit the 10K 2009 and newer \"10,000# general duty axles from Dexter #21-88\". Outside diameter is 4 inches; thread diameter is 4 inches with 12 threads per inch; depth is 1-1\/2 inches. Replacement Part Number is K71-148-00, and the kit aligns with common Dexter part identifiers: oil caps 021-036-00, O-rings 010-050-00, plugs 046-032-00.\u003c\/p\u003e\n\n\u003ch2\u003eMaterials and durability\u003c\/h2\u003e\n\u003cp\u003eMade from high-quality materials, the kit emphasizes lightweight construction while delivering corrosion and oxidation resistance. This combination supports reliable performance through seasonal storage and regular trailer use, helping keep the axle area protected from the elements.\u003c\/p\u003e\n\n\u003ch2\u003eHow to use\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect caps, O-rings, and plugs for wear before installation.\u003c\/li\u003e\n  \u003cli\u003eThread caps by hand until snug and verify a clean, dust-free seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReal-life scenarios\u003c\/h2\u003e\n\u003cp\u003eIdeal for campground trips, boat trailers, and utility trailers that sit between trips. The snug cap plus O-ring seal helps minimize dirt intrusion on dusty back roads and during wet road spray, supporting easier maintenance when you’re ready to service the axle assembly.\u003c\/p\u003e\n\n\u003ch2\u003eMaintenance and care\u003c\/h2\u003e\n\u003cp\u003eRegular inspection and proper storage extend the life of the cap kit. After cleaning or servicing, ensure surfaces are dry and free of grit before reassembly to preserve seal integrity.\u003c\/p\u003e\n\n\u003ch2\u003eWhy choose iFJF\u003c\/h2\u003e\n\u003cp\u003eiFJF focuses on practical, ready-to-install parts that align with common Dexter axle configurations. The kit’s precise fit, clear packaging, and included components enable straightforward maintenance, helping you refresh a cap assembly with confidence rather than guesswork.\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: Which axles is this iFJF oil cap kit compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Dexter 9K (AFTER 10-1-1989), 10K, 12K, and 15K axles; not for 10K 2009+ general duty axles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What comes in the kit and what should I check before ordering?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes 4 oil caps, 4 O-rings, 4 rubber plugs; Part K71-148-00; confirm 4.0-inch thread and axle model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"iFJF","offers":[{"title":"Default Title","offer_id":42468793319509,"sku":"B0B5QG4L49","price":41.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ifjf-oil-cap-kit-dexter-9k-axle-cap.jpg?v=1778080942","url":"https:\/\/plentytorque.co.uk\/products\/ifjf-4pcs-21-36-oil-cap-kit-for-dexter-9k-10k-12k-15k-axles-k71-148-00-4-0-inch-thread","provider":"PlentyTorque","version":"1.0","type":"link"}