CURT A25 5th Wheel Hitch | 16066 | Silverado/Sierra 2500/3500 HD 8' Bed Puck System | 25K

Equip your Chevrolet Silverado, GMC Sierra 2500 HD, 3500 HD puck-equipped truck for premium 25K 5th wheel towing with the CURT A25 5th Wheel Hitch (Part #16066). A-Series premium 25K hitch with patented articulating head, self-resetting single-throw handle, and interlocking dual jaws — direct-fit to your factory puck system with CURT OEM puck legs. Includes A25 head (#16580) plus vehicle-specific puck legs. Drops into your factory puck holes with quarter-turn anchors — no drilling, no rails, no under-bed brackets. Backed by CURT's limited lifetime warranty.

The CURT A25 Series — Premium 25K 5th Wheel Hitch

The CURT A-Series is CURT's premium 5th wheel hitch line — patented articulating head geometry, interlocking dual-jaw design, self-resetting handle. The A25 is the 25,000 lb capacity variant — engineered for larger 5th wheel RVs, heavy toy haulers, and heavy commercial trailers. Meaningful highlights:

• 25,000 lb gross trailer weight (GTW) — handles large 5th wheels, toy haulers, and heavy commercial trailers
• 6,250 lb vertical load capacity — meaningful headroom for heavier pin weights on larger trailers
• ⭐ Patented articulating torsion head (Patent #8,827,298) — cast yoke with poly-torsion inserts suppresses shock loads and reduces noise
• ⭐ Self-resetting single-throw handle — pull once to couple/uncouple; handle automatically returns to ready-to-couple position after uncoupling
• ⭐ High-strength interlocking dual jaws — fully wrap the kingpin for minimal movement and noise
• ⭐ Three-position color-coded coupling indicator — red (uncouple) / yellow (couple) / green (tow) — visible from the truck cab
• ⭐ Extra-wide head opening — makes coupling easier, especially in low-visibility conditions
• ⭐ Sidewinder pin box compatible
• Four height adjustment settings (13"–17" range)
• Carbide black powder coat finish
• Backed by CURT's limited lifetime warranty (one-year finish, one-year parts)

⭐ Direct Puck System Fit for Silverado/Sierra 2500/3500 HD

Standout install benefit: drops directly into the Silverado/Sierra 2500/3500 HD factory puck system. Meaningful benefits:

• No drilling, no rails, no under-bed brackets
• Quarter-turn anchoring — install/remove in seconds
• Adjustable anchors eliminate chucking noise between legs and puck platform
• Full truck bed access when not towing

Vehicle Fit

• Vehicle: Chevrolet Silverado, GMC Sierra 2500 HD, 3500 HD
• Bed length: 8'
• Requirement: Factory puck system (towing prep package) required — fits 2016-2019 Silverado/Sierra HD — the alternate variant 16093 fits 2020-2026 (uses different puck legs)
• Puck leg set included: 16025 (2016-2019 model years)
• Hitch head included: A25 #16580
• Intended for long-bed (8') trucks only — A25's 25K capacity exceeds ratings for short-bed truck configurations

⚠️ Critical Year-Range Note — Verify Before Ordering

16066 and 16093 are both "A25 for Silverado/Sierra 2500/3500 HD 8' bed puck system" — but they use different puck leg sets for different model year ranges.

• This unit (16066) fits 2016-2019 Silverado/Sierra HD (uses puck leg set 16025)
• The alternate variant #16093 fits 2020-2026 Silverado/Sierra HD

Before ordering, verify your truck year matches this leg set. The wrong year-range variant will not fit correctly.

Complete A25 Puck-Fit Lineup — Choose by Truck

• #16036 — Ford F-250/F-350/F-450 SD ($1345.95)
• #16046 — Ram 2500/3500 ($1411.95)
• #16066 — Silverado/Sierra 2500/3500 HD ($1345.95) ⬅ THIS UNIT
• #16093 — Silverado/Sierra 2500/3500 HD ($1365.95)

Prefer Sliding Operation or Universal Rail Mount?

• #16551 — Sliding, universal rails ($1527.95)
• #16651 — Sliding, rails included ($1652.95)
• #16057 — Chevy/GMC/Ford HD Puck Kit ($1997.95)
• #16058 — Ram 2500/3500 Puck Kit ($2047.95)
• #16059 — Silverado/Sierra 2500/3500 HD Puck Kit ($2032.95)

Just Need the Head?

• #16580 — Hitch Head Only ($689.95)
• #16180 — Industry-standard (rails sold separately) ($1063.95)
• #16181 — Rails included ($1241.95)

A25 vs A20 — When to Step Up

The A25 and A20 share the same premium A-Series head design (articulating torsion, dual jaws, self-resetting handle, 3-position indicator, Sidewinder compatible). Meaningful A25 upgrades over A20:

• 25,000 lb GTW vs A20's 20,000 lb — handles larger trailers
• 6,250 lb vertical load capacity vs A20's 5,000 lb — meaningful for heavier 5th wheels and toy haulers
• Uses S25 slider (in sliding configurations) — higher-capacity slider engineered for 25K vs A20's S20 slider (rated for 20K)
• Same puck-system compatibility as A20 for direct-fit puck variants — uses the same puck legs (#16025, #16029, Ram-specific, etc.)

Choose A25 if your trailer's GTW or pin weight is close to or above the A20's ratings. For large 40'+ 5th wheels, heavy toy haulers, or trailers with loaded pin weights over 4,500 lb, A25 provides meaningful headroom.

Need the Absolute Maximum Capacity?

The A25 is capped at 25,000 lb GTW. For the largest 5th wheels and heaviest commercial trailers, CURT offers:

• A30 (30K) — Maximum A-Series capacity for the largest luxury 5th wheels and heavy toy haulers
• PowerRide (30K) — CURT's flagship — multi-directional head, strategic grip points, self-resetting handle, self-aligning

Load Ratings

• Gross Trailer Weight (GTW): 25,000 lb
• Vertical Load Capacity: 6,250 lb

Cross-Reference Part Numbers

• Part Number: 16066
• UPC: 612314038442
• Components: A25 hitch head #16580 + puck legs 16025 (2016-2019 model years)
• Patent: #8,827,298

⚠️ Professional Installation Recommended

Puck-system installation is easier than traditional rail-mounted hitches, but the A25 assembly is heavy. Installation should be performed by a qualified installer.

Limited Lifetime Warranty

Backed by CURT's limited lifetime warranty (one-year finish, one-year parts).

Genuine CURT OEM

Key Features

• Genuine CURT OEM A25 5th Wheel Hitch
• Part Number: 16066
• UPC: 612314038442
• ⭐ Patented articulating torsion head
• ⭐ Self-resetting single-throw handle
• ⭐ Interlocking dual jaws — full kingpin wrap
• ⭐ 3-position color-coded indicator
• ⭐ Sidewinder pin box compatible
• ⭐ Direct puck system fit — quarter-turn anchoring
• Vehicle-specific fit: Chevrolet Silverado, GMC Sierra 2500 HD, 3500 HD
• Bed: 8' (long bed only)
• Puck legs included: 16025 (2016-2019 model years)
• Gross trailer weight: 25,000 lb
• Vertical load capacity: 6,250 lb
• Backed by CURT's limited lifetime warranty

Specifications

• Brand: CURT
• Part Number: 16066
• UPC: 612314038442
• Product Line: A25 (A-Series Premium)
• Type: 5th Wheel Hitch (Puck System Direct-Fit)
• Patent: #8,827,298
• Head Included: A25 #16580
• Puck Legs Included: 16025 (2016-2019 model years)
• Vehicle Fit: Chevrolet Silverado, GMC Sierra 2500 HD, 3500 HD
• Bed Length: 8' (long bed only)
• Year Range: fits 2016-2019 Silverado/Sierra HD — the alternate variant 16093 fits 2020-2026 (uses different puck legs)
• Gross Trailer Weight (GTW): 25,000 lb
• Vertical Load Capacity: 6,250 lb
• Head Design: Cast yoke with poly-torsion inserts, fully articulating
• Jaw Design: High-strength interlocking dual jaws
• Handle: Lockable single-throw, self-resetting
• Coupling Indicator: 3-position color-coded
• Pin Box Compatibility: Standard + Sidewinder
• Anchoring: Quarter-turn, adjustable
• Finish: Carbide black powder coat
• Warranty: Limited lifetime (one-year finish, one-year parts)