{"product_id":"castair-preventative-maintenance-kit-d62-air-end-for-15-25hp-rotary-compressors-mkd62","title":"Castair, Preventative Maintenance Kit, D62 Air End for 15-25HP Rotary Compressors MKD62","description":"\u003cp\u003eThe Castair MKD62 Preventative Maintenance Kit covers everything you need to service the D62 air end on 15–25HP rotary screw compressors in a single order. Instead of hunting down an air filter here, an oil filter there, and hoping the separator you ordered is the right spin-on type, this kit ships as a complete PM bundle: two air filters, four oil filters, one separator filter, and five gallons of Castair's own CAST-LUBE synthetic compressor oil. That's a full service interval in one box, and because Castair builds the kit, every part is spec'd to fit the D62 air end exactly.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy a Kit Instead of Individual Filters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10% savings vs. individual parts:\u003c\/strong\u003e Castair prices the MKD62 at a 10% discount compared to buying the same filters and oil separately. On a $700 purchase, that's real money back in your parts budget.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne order, one shipment:\u003c\/strong\u003e PM kits eliminate the common problem of completing a service and realizing you forgot to order the separator filter or you're one oil filter short. Everything arrives together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-matched components:\u003c\/strong\u003e Every filter in the kit is a Castair-spec part designed for the D62 air end. No cross-referencing aftermarket substitutes and hoping the dimensions match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCovers a full service interval:\u003c\/strong\u003e The kit includes enough filters for one complete preventative maintenance cycle plus the oil change. When your compressor hits its service hours, you pull this kit off the shelf and get it done.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit Components\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filters (qty 2):\u003c\/strong\u003e Part number RAFD6-62. Paper element design. ID: 4 3\/4\", OD: 6 1\/8\", Height: 2 7\/8\". Fits D62 and D62 paper configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Filters (qty 4):\u003c\/strong\u003e Part number ROFD62-P75. Spin-on design for quick no-mess changes. Shared spec with the P75 air end — one filter part number covers both platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparator Filter (qty 1):\u003c\/strong\u003e Part number RSFD62. Spin-on design. The separator is the most critical filter in a rotary screw system — it pulls oil out of the compressed air stream before it reaches your downstream equipment. Using an OEM separator protects both the compressor and your air tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAST-LUBE Synthetic Compressor Oil (5 gallons):\u003c\/strong\u003e Castair's own formulation for rotary screw air ends. Synthetic base for extended drain intervals, oxidation resistance, and protection at operating temperature. Using the correct oil in a rotary screw air end is not optional — the wrong viscosity or additive package accelerates wear on the air end bearings and rotors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAir End Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary fit:\u003c\/strong\u003e D62 air end, 15–25HP rotary screw compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP range covered:\u003c\/strong\u003e 15HP, 20HP, and 25HP units equipped with the D62 air end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon units in this range:\u003c\/strong\u003e Castair's 15–25HP rotary screw models in both horizontal and vertical tank configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference note:\u003c\/strong\u003e The oil filter ROFD62-P75 is shared with the P75 air end (covered by the MKP75 kit). The air filter RAFD6-62 is specific to the D62 platform — verify your air end designation before ordering if you are unsure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2x Air Filter RAFD6-62 (D62 \/ D62 paper, ID: 4 3\/4\", OD: 6 1\/8\", HGT: 2 7\/8\")\u003c\/li\u003e\n\u003cli\u003e4x Oil Filter ROFD62-P75 (spin-on)\u003c\/li\u003e\n\u003cli\u003e1x Separator Filter RSFD62 (spin-on)\u003c\/li\u003e\n\u003cli\u003e5 gallons CAST-LUBE synthetic compressor oil\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Castair Preventative Maintenance Kits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMKP75 — P75 Air End, 5–15HP:\u003c\/strong\u003e Two air filters (20DP), four oil filters (ROFD62-P75), one separator (RSFLD3-4-6-G11-P75), five gallons CAST-LUBE. For smaller rotary screw units on the P75 platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMKD62 — D62 Air End, 15–25HP (this kit):\u003c\/strong\u003e $704.70. For mid-range 15–25HP rotary screw compressors. The most common PM kit for shops running Castair units in the 20HP class.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMKG11 — G11 Air End, 5–15HP:\u003c\/strong\u003e Two air filters (RAFG11), four oil filters (ROFD3-4-G11), one separator (RSFLD3-4-6-G11-P75), five gallons CAST-LUBE. For smaller G11 platform units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMKG30R — G30 Air End, 15–30HP:\u003c\/strong\u003e Two air filters (32DP), four oil filters (ROFD16-G30), one separator (RSFD10-16-G30), five gallons CAST-LUBE. For larger G30 platform units up to 30HP.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll kits save 10% compared to purchasing filters and oil individually. Call 866-217-0063 if you are unsure which kit matches your compressor.\u003c\/p\u003e\n\n\u003ch3\u003eFilter Reference — D62 Air End Individual Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter:\u003c\/strong\u003e RAFD6-62 — ID: 4 3\/4\", OD: 6 1\/8\", HGT: 2 7\/8\" — fits D62 and D62 paper configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Filter:\u003c\/strong\u003e ROFD62-P75 — spin-on, shared with P75 air end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparator Filter:\u003c\/strong\u003e RSFD62 — spin-on, D62-specific\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil:\u003c\/strong\u003e CAST-LUBE synthetic, 5-gallon jugs available separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen Does a Shop Need This Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou have a 15–25HP Castair rotary screw compressor with a D62 air end\u003c\/strong\u003e and it is approaching its scheduled service interval. This is the correct kit — order it, put it on the shelf, and service the unit on schedule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are setting up a PM program\u003c\/strong\u003e for a fleet of shop compressors and want to pre-stock service kits. The MKD62 is the right stocking unit for D62-equipped machines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are stepping up from a smaller unit\u003c\/strong\u003e (P75 or G11 air end) to a 15–25HP machine. The D62 requires its own air filter — do not try to use G11 filters on a D62.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou run a 20HP compressor hard\u003c\/strong\u003e — multiple shifts, high duty cycle — and want to ensure you have OEM-spec consumables on hand rather than scrambling when a filter check comes due mid-week.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsider the MKG30R instead\u003c\/strong\u003e if your unit is a 25–30HP machine with a G30 air end. The G30 uses larger filters (32DP air filter, OD: 9 1\/4\") and different oil and separator specs. Confirm your air end designation before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsider the MKG11 or MKP75 instead\u003c\/strong\u003e if your unit is under 15HP — those kits have the correct filter dimensions for their respective air ends.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Part Number:\u003c\/strong\u003e MKD62\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir End:\u003c\/strong\u003e D62\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP Range:\u003c\/strong\u003e 15–25HP rotary screw compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter P\/N:\u003c\/strong\u003e RAFD6-62\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter ID:\u003c\/strong\u003e 4 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter OD:\u003c\/strong\u003e 6 1\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter Height:\u003c\/strong\u003e 2 7\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter Type:\u003c\/strong\u003e Paper element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter Qty in Kit:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Filter P\/N:\u003c\/strong\u003e ROFD62-P75\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Filter Type:\u003c\/strong\u003e Spin-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Filter Qty in Kit:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparator Filter P\/N:\u003c\/strong\u003e RSFD62\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparator Filter Type:\u003c\/strong\u003e Spin-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparator Filter Qty in Kit:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Type:\u003c\/strong\u003e CAST-LUBE synthetic compressor oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Qty in Kit:\u003c\/strong\u003e 5 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Price:\u003c\/strong\u003e $704.70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSavings vs. Individual Parts:\u003c\/strong\u003e 10%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Castair (Cast Air)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor parts specialists:\u003c\/strong\u003e We focus exclusively on air compressor parts and equipment. We know the Castair product line — which kits fit which air ends, which filters cross-reference, and what to do when the part number on your unit doesn''t match the catalog exactly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping:\u003c\/strong\u003e The MKD62 ships free. A 5-gallon oil kit with filters is not a light box — free shipping matters on parts orders like this.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e Call 866-217-0063 with your compressor model number before you order if you have any doubt about compatibility. We will confirm the correct kit for your air end before you spend $700 on the wrong parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty:\u003c\/strong\u003e All Castair parts and kits ship with the full Castair warranty. OEM parts, OEM coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e If the MKD62 is not the right kit for your machine, we will tell you. We would rather get you the correct part the first time than process a return.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342572085461,"sku":"MKD62","price":1299.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/parts6_90cb6ea4-a7c4-42df-b29d-d7351d7ba9e9.jpg?v=1772652742","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-preventative-maintenance-kit-d62-air-end-for-15-25hp-rotary-compressors-mkd62","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}