{"product_id":"xpartco-hvac-capacitor-contractor-pack-18-piece-assortment-kit-dual-single-run","title":"XPARTCO HVAC Capacitor Contractor Pack — 18-Piece Assortment Kit (Dual + Single Run)","description":"\u003cstyle\u003e.pom { font-family: 'Inter', sans-serif; color: #1e293b; line-height: 1.75; }\n  .pom *, .pom *::before, .pom *::after { box-sizing: border-box; }\n  .pom h2 { font-size: 21px; font-weight: 900; color: #0f172a; margin: 0 0 12px; letter-spacing: -0.01em; }\n  .pom h3 { font-size: 17px; font-weight: 900; color: #0f172a; margin: 0 0 12px; letter-spacing: -0.01em; }\n  .pom-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 20px 22px; margin-bottom: 16px; }\n  .pom-card-blue { background: #eff6ff; border-color: #bfdbfe; }\n  .pom-card-green { background: #f0fdf4; border-color: #bbf7d0; }\n  .pom-qa { background: #eff6ff; border-left: 4px solid #1e40af; border-radius: 0 8px 8px 0; padding: 16px 20px; margin-bottom: 16px; }\n  .pom-qa-label { font-size: 10px; font-weight: 900; letter-spacing: 0.1em; text-transform: uppercase; color: #1e40af; margin: 0 0 6px; }\n  .pom ul { margin: 0; padding: 0; list-style: none; }\n  .pom ul li { position: relative; padding-left: 20px; margin-bottom: 8px; font-size: 16px; }\n  .pom ul li::before { content: \"\"; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: #1e40af; }\n  .pom-list-green li::before { background: #15803d; }\n  .pom-specs-table { width: 100%; border-collapse: collapse; font-size: 15px; }\n  .pom-specs-table tr { border-bottom: 1px solid #f1f5f9; }\n  .pom-specs-table tr:last-child { border-bottom: none; }\n  .pom-specs-table td { padding: 9px 4px; }\n  .pom-specs-table td:first-child { color: #1e293b; width: 45%; font-style: italic; }\n  .pom-specs-table td:last-child { font-weight: 700; color: #0f172a; }\n  .pom-warning { background: #fffbeb; border-left: 4px solid #f59e0b; border-radius: 0 8px 8px 0; padding: 14px 18px; font-size: 15px; color: #92400e; line-height: 1.65; }\n  .pom-warning strong { display: block; margin-bottom: 5px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }\n  .pom-danger { background: #fff5f5; border-left: 4px solid #c62828; border-radius: 0 8px 8px 0; padding: 14px 18px; font-size: 15px; color: #8c1c1c; line-height: 1.65; margin: 14px 0; }\n  .pom-danger strong { display: block; margin-bottom: 5px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }\n  .pom-faq-item { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid #f1f5f9; }\n  .pom-faq-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }\n  .pom-faq-q { font-weight: 700; color: #0f172a; margin-bottom: 5px; font-size: 16px; }\n  .pom-faq-a { font-size: 15px; color: #334155; margin: 0; line-height: 1.65; }\n  .pom-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }\n  .pom-badge { background: #f0fdf4; border: 1px solid #bbf7d0; color: #15803d; font-size: 14px; font-weight: 700; padding: 6px 14px; border-radius: 999px; }\n  .pom p { margin: 0 0 12px; font-size: 16px; }\n  .pom p:last-child { margin-bottom: 0; }\n  .pom-kit-table { width: 100%; border-collapse: collapse; font-size: 15px; }\n  .pom-kit-table th { text-align: left; font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.05em; color: #1e40af; padding: 8px 6px; border-bottom: 2px solid #bfdbfe; }\n  .pom-kit-table td { padding: 10px 6px; border-bottom: 1px solid #f1f5f9; }\n  .pom-kit-table tr:last-child td { border-bottom: none; }\n  .pom-kit-table td:nth-child(2) { font-weight: 800; color: #0f172a; text-align: center; } \u003c\/style\u003e\n\u003cdiv class=\"pom\"\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch2\u003eXPARTCO HVAC Capacitor Contractor Pack — 18-Piece Assortment Kit (Dual + Single Run)\u003c\/h2\u003e\n\u003cp\u003eThe XPARTCO HVAC Capacitor Contractor Pack bundles the seven most commonly needed dual run capacitor ratings, plus two single run capacitor ratings, into a single 18-piece kit, so a technician can carry one box instead of restocking capacitors between jobs. Each dual run capacitor combines two capacitors into one round, three-terminal can — one rated for the compressor, one for the condenser fan motor — the standard design used across the vast majority of residential and light commercial split systems, window units, and heat pumps. The single run capacitors are 2-terminal units sized for one motor circuit, commonly used on standalone condenser fan motors, pool pumps, and other single-phase motor equipment.\u003c\/p\u003e\n\u003cp\u003eThe mix in this kit is weighted toward the ratings that fail most often in the field: 35\/5, 40\/5, and 45\/5 MFD capacitors cover the majority of residential 1.5–3.5 ton systems and are included in higher quantities, while 50\/5, 60\/5, 70\/5, and 80\/5 MFD round out coverage for larger residential and light commercial compressors. All fourteen capacitors are rated 450VAC, so each one is a safe upgrade replacement regardless of whether the original equipment was speced at 370V, 440V, or 450V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-qa\"\u003e\n\u003cp class=\"pom-qa-label\"\u003eQuick Answer\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eXPARTCO HVAC Capacitor Contractor Pack\u003c\/strong\u003e is an 18-piece assortment covering the seven dual run capacitor ratings most commonly replaced on residential and light commercial AC systems and heat pumps, plus two single run capacitor ratings for fan motors and similar equipment: 35\/5 (×2), 40\/5 (×4), 45\/5 (×4), 50\/5 (×1), 60\/5 (×1), 70\/5 (×1), 80\/5 (×1), single-run 5 (×2), and single-run 7.5 (×2) MFD, all rated 450VAC, round. Built for technicians who want to stock a truck once instead of reordering capacitors mid-week. \u003cem\u003eCapacitors store a dangerous electrical charge even after power is disconnected — always discharge before handling.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eWhat's In The Kit\u003c\/h3\u003e\n\u003ctable class=\"pom-kit-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacitor Rating\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eSmaller residential split systems, window\/PTAC units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eCommon residential 2–2.5 ton systems — high-frequency replacement size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eCommon residential 2.5–3 ton systems — high-frequency replacement size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eMid-size residential systems, 3–3.5 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eLarger residential systems, 3.5–4 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e70\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eLarger residential\/light commercial systems, 4–5 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80\/5 MFD, 450V, Round\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eLarger compressors and light commercial equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 MFD, 450V, Round (Single Run)\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eStandalone condenser fan motors, pool pumps, small single-phase motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.5 MFD, 450V, Round (Single Run)\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eStandalone condenser fan motors, pool pumps, small single-phase motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eCommon Problems This Kit Solves\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor AC unit hums but the compressor won't start\u003c\/li\u003e\n\u003cli\u003eCondenser fan won't spin, or spins slowly and needs a manual push to get going\u003c\/li\u003e\n\u003cli\u003eSystem trips the breaker shortly after starting\u003c\/li\u003e\n\u003cli\u003eAC blows warm air because the compressor isn't running\u003c\/li\u003e\n\u003cli\u003eRepeated clicking sound from the contactor as it tries and fails to start the motor\u003c\/li\u003e\n\u003cli\u003eCapacitor can visibly bulging, domed on top, or leaking oily residue\u003c\/li\u003e\n\u003cli\u003eNeeding a specific capacitor rating on the spot without a return trip to the supply house\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card pom-card-blue\"\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis kit's capacitors are universal replacements compatible with \u003cstrong\u003ecentral air conditioners, heat pumps, and condensing units\u003c\/strong\u003e across all major HVAC brands, wherever the original capacitor's MFD rating matches one included in this kit and its voltage rating is 450V or lower (370V and 440V equipment included, since a higher voltage rating is always a safe upgrade).\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 15px; color: #92400e; background: #fffbeb; border-left: 4px solid #f59e0b; padding: 10px 14px; border-radius: 0 6px 6px 0;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The MFD (microfarad) rating must match the original capacitor exactly on both the compressor and fan sides — do not substitute a different MFD value. If a job calls for a rating not included in this kit (such as a 25\/5, 30\/5, or 55\/5), each individual dual run capacitor rating is also available separately in our HVAC capacitor line. Contact our support team if you'd like help confirming which rating a specific job needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e18-piece assortment covering the 7 most commonly replaced dual run ratings plus 2 single run ratings\u003c\/li\u003e\n\u003cli\u003eQuantities weighted toward the highest-frequency replacement sizes (35\/5, 40\/5, 45\/5)\u003c\/li\u003e\n\u003cli\u003eAll capacitors rated 450VAC — a safe upgrade for equipment originally speced at 370V or 440V\u003c\/li\u003e\n\u003cli\u003eRound can construction — 3-terminal (C, Herm, Fan) dual run capacitors and 2-terminal single run capacitors\u003c\/li\u003e\n\u003cli\u003ePolypropylene film construction; safety approved CQC, VDE, TÜV, CL; built to GB\/T 3667 and EN 60252 standards\u003c\/li\u003e\n\u003cli\u003eOperating temperature range -40°C to 70°C (-40°F to +158°F)\u003c\/li\u003e\n\u003cli\u003eEliminates truck-stock gaps — one kit replaces reordering single capacitors between jobs\u003c\/li\u003e\n\u003cli\u003eEach rating also available individually for restocking a single value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eKit Specifications\u003c\/h3\u003e\n\u003ctable class=\"pom-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit Contents\u003c\/td\u003e\n\u003ctd\u003e18 capacitors — 14 dual run across 7 ratings + 4 single run across 2 ratings (see table above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitor Types\u003c\/td\u003e\n\u003ctd\u003eDual Run (Compressor + Fan) and Single Run\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew — Universal Replacement Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating (all pieces)\u003c\/td\u003e\n\u003ctd\u003e450VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminals\u003c\/td\u003e\n\u003ctd\u003e3 per dual run capacitor \/ 2 per single run capacitor (1\/4\" quick-connect)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction Type\u003c\/td\u003e\n\u003ctd\u003ePolypropylene film capacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to 70°C (-40°F to +158°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Approvals\u003c\/td\u003e\n\u003ctd\u003eCQC, VDE, TÜV, CL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproval Standard\u003c\/td\u003e\n\u003ctd\u003eGB\/T 3667, EN 60252\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCentral Air Conditioners, Heat Pumps, Condensing Units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eUniversal — all major HVAC brands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cdiv class=\"pom-danger\"\u003e\n\u003cstrong\u003e⚠️ Danger — Capacitors Store A Dangerous Electrical Charge\u003c\/strong\u003e Shut off power to the outdoor unit at the disconnect box and at the breaker before beginning any capacitor replacement. A capacitor stores an electrical charge even after power has been disconnected, and that charge can deliver a serious or fatal shock. Before touching any terminal, discharge the capacitor fully: on a dual run capacitor, short each pair of terminals together (C-to-Fan, C-to-Herm, and Fan-to-Herm); on a single run capacitor, short the two terminals together. Use an insulated-handle screwdriver, or a proper capacitor discharge tool with a resistor. Never short the terminals with a bare metal tool held with your bare hand.\u003c\/div\u003e\n\u003cdiv class=\"pom-warning\"\u003e\n\u003cstrong\u003e⚠️ Match The Rating Before Installing — Photograph Wiring First\u003c\/strong\u003e Confirm the failed capacitor's MFD rating on both the compressor and fan sides, and select the matching piece from this kit — the rating printed on the old capacitor's can is the reference, not the equipment's tonnage. Photograph the wiring on the old capacitor's terminals before disconnecting anything; terminals are typically labeled C (Common), Herm or Comp (compressor), and Fan. Remove the mounting strap holding the old capacitor, disconnect each wire, and install the replacement from this kit in the same mounting position, reconnecting each wire to the matching terminal. Restore power and confirm the compressor and fan both start promptly and run smoothly. Tools needed: insulated-handle screwdriver or capacitor discharge tool, nut driver, work gloves, safety glasses.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"pom-faq-item\"\u003e\n\u003cp class=\"pom-faq-q\"\u003eWhy are 35\/5, 40\/5, and 45\/5 included in higher quantities than the others?\u003c\/p\u003e\n\u003cp class=\"pom-faq-a\"\u003eThese three ratings cover the size range used on the largest share of residential split systems in the field, so they're the ratings most likely to come up repeatedly across a week of service calls. The larger ratings (50\/5 through 80\/5) still come up regularly but less often, which is why the kit includes one of each rather than duplicates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-faq-item\"\u003e\n\u003cp class=\"pom-faq-q\"\u003eWhat if a job needs a rating that isn't in this kit, like 25\/5 or 55\/5?\u003c\/p\u003e\n\u003cp class=\"pom-faq-a\"\u003eEvery rating in this kit — both dual run and single run — is also sold individually, so you can pick up less common values as needed without buying another full kit. Contact our support team if you want help identifying which individual rating a specific job calls for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-faq-item\"\u003e\n\u003cp class=\"pom-faq-q\"\u003eCan I use a 450V capacitor from this kit to replace an original 370V or 440V capacitor?\u003c\/p\u003e\n\u003cp class=\"pom-faq-a\"\u003eYes. Voltage rating is a ceiling, not an exact match requirement — a capacitor rated for a higher voltage than the original works safely and often lasts longer under the same electrical stress. What you can't do is go the other direction, so every capacitor in this kit being 450V means it's a safe fit anywhere the original was rated 370V, 440V, or 450V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-faq-item\"\u003e\n\u003cp class=\"pom-faq-q\"\u003eDoes the MFD rating need to match exactly, or is there some tolerance?\u003c\/p\u003e\n\u003cp class=\"pom-faq-a\"\u003eMatch the rating on both the compressor and fan side as closely as possible to the original — these capacitors carry a ±5% manufacturing tolerance, but that's not the same as intentionally substituting a different rated value. Always select the kit piece whose printed MFD rating matches what was on the failed capacitor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-faq-item\"\u003e\n\u003cp class=\"pom-faq-q\"\u003eIs this a genuine OEM kit?\u003c\/p\u003e\n\u003cp class=\"pom-faq-a\"\u003eThis is a universal replacement kit rather than a brand-specific OEM product. Because dual run capacitors are a standardized component defined by their electrical specifications rather than their manufacturer, each capacitor in this kit is a correct replacement for any unit's original capacitor sharing the same rating — regardless of which HVAC brand originally installed it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pom-card pom-card-green\"\u003e\n\u003ch3\u003eShop With Confidence\u003c\/h3\u003e\n\u003cp\u003eA U.S.-based appliance parts retailer specializing in genuine OEM and high-quality replacement parts. We stock components for all major appliance brands and offer fast shipping from our U.S. warehouse. Our team is available to help verify compatibility before you purchase.\u003c\/p\u003e\n\u003cdiv class=\"pom-badges\"\u003e\n\u003cspan class=\"pom-badge\"\u003e✓ Quality Replacement Parts\u003c\/span\u003e \u003cspan class=\"pom-badge\"\u003e✓ Fast US Shipping\u003c\/span\u003e \u003cspan class=\"pom-badge\"\u003e✓ Compatibility Support\u003c\/span\u003e \u003cspan class=\"pom-badge\"\u003e✓ Secure Checkout\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"XPARTCO","offers":[{"title":"Default Title","offer_id":48994024947882,"sku":"XPCPC18","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0055\/1675\/5018\/files\/XPCPC18.jpg?v=1785618325","url":"https:\/\/parts-o-matic.com\/products\/xpartco-hvac-capacitor-contractor-pack-18-piece-assortment-kit-dual-single-run","provider":"Parts-O-Matic","version":"1.0","type":"link"}