{"product_id":"curt-a20-5th-wheel-hitch-head-only-16540-20k","title":"CURT A20 5th Wheel Hitch Head | 16540 | 20K | Head Only","description":"\u003cp\u003eThe \u003cstrong\u003eCURT A20 5th Wheel Hitch Head (Part #16540)\u003c\/strong\u003e is the standalone head unit for the CURT A-Series 20K 5th wheel hitch system. Buy this if you already have compatible A-Series legs, an S20 slider, or need a replacement head for an existing A20 installation. Head only — legs, rails, and mounting hardware NOT included. Rated to 20,000 lb GTW \/ 5,000 lb vertical load. Patented articulating torsion head with poly-torsion inserts. Self-resetting single-throw handle. High-strength interlocking dual jaws. 3-position color-coded coupling indicator. Compatible with Sidewinder pin boxes. CURT limited lifetime warranty.\u003c\/p\u003e\n\n\u003ch3\u003eThe CURT A20 Series — Premium 20K 5th Wheel Hitch\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCURT A-Series\u003c\/strong\u003e is CURT's premium 5th wheel hitch line — engineered with patented articulating head geometry, interlocking dual-jaw design, and self-resetting handle operation. The A20 is the 20,000 lb capacity variant — the step up from the A16 for larger 5th wheels, mid-size toy haulers, and heavier commercial trailers. Meaningful highlights:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20,000 lb gross trailer weight (GTW)\u003c\/strong\u003e — handles larger 5th wheel RVs, toy haulers, and heavier commercial trailers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5,000 lb vertical load capacity\u003c\/strong\u003e — 1,000 lb more than A16, meaningful for larger trailers with heavier pin weights\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Patented articulating torsion head\u003c\/strong\u003e (Patent #8,827,298) — cast yoke with poly-torsion inserts suppresses shock loads and reduces noise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Self-resetting single-throw handle\u003c\/strong\u003e — pull once to couple\/uncouple; handle automatically returns to ready-to-couple position after uncoupling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ High-strength interlocking dual jaws\u003c\/strong\u003e — fully wrap the kingpin for minimal movement and noise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Three-position color-coded coupling indicator\u003c\/strong\u003e — red (uncouple) \/ yellow (couple) \/ green (tow) — visible from the truck cab\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Extra-wide head opening\u003c\/strong\u003e — makes coupling easier, especially in low-visibility conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Sidewinder pin box compatible\u003c\/strong\u003e — approved for use with Sidewinder-style turret pin boxes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour height adjustment settings\u003c\/strong\u003e (13\"–17\" range)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCarbide black powder coat finish\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacked by CURT's limited lifetime warranty\u003c\/strong\u003e (one-year finish, one-year parts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⭐ Head Only — Ideal Replacement \/ Upgrade Path\u003c\/h3\u003e\n\u003cp\u003eThe A20 hitch head (#16540) is the same premium head used in every complete A20 configuration. Meaningful use cases:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpgrade an A16 setup to 20K capacity\u003c\/strong\u003e — swap the head, keep the existing legs (same puck-system compatibility)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace a damaged A20 head\u003c\/strong\u003e — restore your hitch without replacing the whole assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuild a custom A20 configuration\u003c\/strong\u003e — pair with compatible legs, slider, or roller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⚠️ What This Head Requires (Sold Separately)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5th wheel legs\u003c\/strong\u003e — industry-standard rail-mount legs or CURT OEM puck legs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5th wheel base rails\u003c\/strong\u003e — required for industry-standard leg installations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom under-bed brackets\u003c\/strong\u003e — required for industry-standard rail installations (vehicle-specific)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOr a puck adapter\u003c\/strong\u003e — for puck-equipped trucks using industry-standard legs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComplete A20 Configurations Available\u003c\/h3\u003e\n\u003cp\u003eIf you don't already have compatible legs\/rails, browse the complete A20 configurations:\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eBase configurations (industry-standard rail mount):\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e#16540 — Hitch Head Only ($622.95)\u003c\/strong\u003e ⬅ THIS UNIT\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16140-20k-industry-standard-rails\"\u003e#16140 — Industry-standard (rails sold separately) ($999.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16141-20k-with-rails\"\u003e#16141 — Rails included ($1027.95)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDirect-fit puck-system configurations:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16034-ford-super-duty-8ft-bed-puck-system\"\u003e#16034 — Ford F-250\/F-350\/F-450 SD ($1357.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16044-ram-2500-3500-8ft-bed-puck-system\"\u003e#16044 — Ram 2500\/3500 ($1507.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16064-silverado-sierra-hd-8ft-bed-puck-legs-16025\"\u003e#16064 — Silverado\/Sierra 2500\/3500 HD ($1252.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16092-silverado-sierra-hd-8ft-bed-puck-legs-16029\"\u003e#16092 — Silverado\/Sierra 2500\/3500 HD ($1309.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16074-nissan-titan-xd-8ft-bed-puck-system\"\u003e#16074 — Nissan Titan XD ($1424.95)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eSliding configurations:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-sliding-5th-wheel-hitch-16531-20k-industry-standard-rails\"\u003e#16531 — Sliding, universal rails ($1292.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-sliding-5th-wheel-hitch-16631-20k-with-rails\"\u003e#16631 — Sliding, rails included ($1416.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-trailer-hitch-kit-16077-ram-2500-3500-puck-slider\"\u003e#16077 — Ram 2500\/3500 Kit ($1817.95)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-ca\/products\/curt-a20-5th-wheel-hitch-16682-s20-slider-puck-adapter-chevy-ford-gmc\"\u003e#16682 — Chevy\/GMC\/Ford HD Kit ($1768.95)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eA20 vs A16 — When to Step Up\u003c\/h3\u003e\n\u003cp\u003eThe A20 and A16 share the same premium A-Series head design (articulating torsion, dual jaws, self-resetting handle, 3-position indicator, Sidewinder compatible). Meaningful A20 upgrades over A16:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20,000 lb GTW\u003c\/strong\u003e vs A16's 16,000 lb — handles heavier trailers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5,000 lb vertical load capacity\u003c\/strong\u003e vs A16's 4,000 lb — meaningful for larger 5th wheels with heavier pin weights\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame puck-system compatibility\u003c\/strong\u003e as A16 — uses the same puck legs (#16025, #16029, etc.) so upgrade paths are straightforward\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose A20 if your trailer's GTW or pin weight is close to or above the A16's ratings. For a typical 32'–40' 5th wheel with a loaded pin weight over 3,500 lb, A20 provides meaningful headroom.\u003c\/p\u003e\n\n\u003ch3\u003eNeed Even Higher Capacity?\u003c\/h3\u003e\n\u003cp\u003eThe A20 is capped at 20,000 lb GTW. For larger 5th wheels and heavy toy haulers, CURT offers:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA25 (25K)\u003c\/strong\u003e — 25,000 lb GTW \/ 6,250 lb vertical load\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA30 (30K)\u003c\/strong\u003e — Maximum A-Series capacity for luxury 5th wheels and heavy toy haulers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowerRide (30K)\u003c\/strong\u003e — CURT's flagship — multi-directional head, strategic grip points, self-resetting handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach higher-capacity variant is available for the same puck-system trucks and universal industry-standard base rails.\u003c\/p\u003e\n\n\u003ch3\u003eLoad Ratings\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGross Trailer Weight (GTW):\u003c\/strong\u003e 20,000 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVertical Load Capacity:\u003c\/strong\u003e 5,000 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWeight capacities are limited to the lowest-rated towing component (head + legs + rails + trailer coupler).\u003c\/p\u003e\n\n\u003ch3\u003eCross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 16540\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 612314165407\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatent:\u003c\/strong\u003e #8,827,298\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e CURT A-Series and Q-Series 5th wheel legs, S20 slider, R20 roller adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⚠️ Professional Installation Recommended\u003c\/h3\u003e\n\u003cp\u003eHead unit installation involves proper leg attachment torque and alignment. Installation should be performed by a \u003cstrong\u003equalified installer\u003c\/strong\u003e unless you have prior experience with 5th wheel hitch service.\u003c\/p\u003e\n\n\u003ch3\u003eLimited Lifetime Warranty\u003c\/h3\u003e\n\u003cp\u003eBacked by CURT's \u003cstrong\u003elimited lifetime warranty\u003c\/strong\u003e (one-year finish, one-year parts).\u003c\/p\u003e\n\n\u003ch3\u003eGenuine CURT OEM\u003c\/h3\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine CURT OEM\u003c\/strong\u003e A20 5th Wheel Hitch Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 16540\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 612314165407\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Patented articulating torsion head\u003c\/strong\u003e — cast yoke, poly-torsion inserts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Self-resetting single-throw handle\u003c\/strong\u003e — auto-returns to ready-to-couple\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ High-strength interlocking dual jaws\u003c\/strong\u003e — full kingpin wrap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ 3-position color-coded indicator\u003c\/strong\u003e — visible from truck cab\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⭐ Extra-wide head opening\u003c\/strong\u003e — easier coupling\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e⭐ Sidewinder pin box compatible\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGross trailer weight:\u003c\/strong\u003e 20,000 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVertical load capacity:\u003c\/strong\u003e 5,000 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead unit only\u003c\/strong\u003e — legs, rails, brackets NOT included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Carbide black powder coat\u003c\/li\u003e\n  \u003cli\u003eBacked by CURT's limited lifetime warranty (one-year finish, one-year parts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: CURT\u003c\/li\u003e\n  \u003cli\u003ePart Number: 16540\u003c\/li\u003e\n  \u003cli\u003eUPC: 612314165407\u003c\/li\u003e\n  \u003cli\u003eProduct Line: A20 (A-Series Premium)\u003c\/li\u003e\n  \u003cli\u003eType: 5th Wheel Hitch Head Unit (Standalone)\u003c\/li\u003e\n  \u003cli\u003ePatent: #8,827,298\u003c\/li\u003e\n  \u003cli\u003eGross Trailer Weight (GTW): 20,000 lb\u003c\/li\u003e\n  \u003cli\u003eVertical Load Capacity: 5,000 lb\u003c\/li\u003e\n  \u003cli\u003eHead Design: Cast yoke with poly-torsion inserts, fully articulating\u003c\/li\u003e\n  \u003cli\u003eJaw Design: High-strength interlocking dual jaws (full kingpin wrap)\u003c\/li\u003e\n  \u003cli\u003eHandle: Lockable single-throw, self-resetting\u003c\/li\u003e\n  \u003cli\u003eCoupling Indicator: 3-position color-coded (red\/yellow\/green)\u003c\/li\u003e\n  \u003cli\u003ePin Box Compatibility: Standard + Sidewinder-style turret pin boxes\u003c\/li\u003e\n  \u003cli\u003eCompatibility: CURT A-Series and Q-Series 5th wheel legs, S20 slider, R20 roller\u003c\/li\u003e\n  \u003cli\u003eHeight Adjustment: 4 positions (13\"–17\" range, requires compatible legs)\u003c\/li\u003e\n  \u003cli\u003eIncluded: Head unit only\u003c\/li\u003e\n  \u003cli\u003eSold Separately: Legs, base rails, brackets, slider (as needed for configuration)\u003c\/li\u003e\n  \u003cli\u003eFinish: Carbide black powder coat\u003c\/li\u003e\n  \u003cli\u003eWarranty: Limited lifetime (one-year finish, one-year parts)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":58417906385199,"sku":"16540","price":873.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/16540_1024x768_a_1.webp?v=1788441283","url":"https:\/\/thervsurplus.com\/en-ca\/products\/curt-a20-5th-wheel-hitch-head-only-16540-20k","provider":"The RV Surplus","version":"1.0","type":"link"}