8000 lb TK Tandem Axle Gooseneck Trailer Parts Kit - 16K Capacity HD (Complete Original Series) 9/16" Studs

  • 8000 lb Tandem Axle Complete Gooseneck Trailer Kit
  • Specs: 6,000 lbs Electric Brake Trailer Axle (6K Capacity) Tube: 3" Bolt Pattern: 6x5.5 This axle is not ABS compatible This 6K electric brake trailer axle comes f6k TK Trailer Axle
  • Custom axle min/max reference chart
  • 5,200 lb - 8,000 lb Tandem Axle Hanger Placement Diagram (5.2K - 8K Slipper Spring Suspension Setup)
  • 12K-16K Trailer Axle Hydraulic Drum Brake Assembly - 12.25"x5" - 12000-16000 lb Capacity - Right Hand (Passenger Side).
  • What's Included: 1 - 3.5k Electric Drum Brake Axle (5x4.5) - 4" Drop 2 - 1.75k 25.25" 4 leaf Double Eye Springs 1 - 3.5K U-Bolt Kits 1 - Double Eye Hanger Kit This 3.5k TK Heavy Duty
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8000 lb TK Tandem Axle Gooseneck Trailer Parts Kit - 16K Capacity HD (Complete Original Series) 9/16" Studs

8000 lb TK Tandem Axle Gooseneck Trailer Parts Kit - 16K Capacity HD (Complete Original Series) 9/16" Studs

SKU : 08DHDSMCKTTKGN7556916865

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$3,930.99

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Shipping: Calculated at Checkout | Product Wt. 1180.0 lb
Hubface/Spring Center:
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True 8K Complete Gooseneck Tandem Trailer Kit — 16K capacity | Axles, Suspension, Wheels, Coupler, Jack & Wiring

Everything you need to build a 16,000 lb tandem trailer, in one package: two 8,000 lb electric-brake axles, matched slipper suspension, 14-ply wheels, fenders, a gooseneck coupler and dual drop-leg jacks, and the complete lighting, wiring, breakaway, and DOT-tape package.

Kit Specifications:

  • Load rating: 16,000 lbs combined (two 8K axles)
  • Axle type: Electric Brake (True 8K)
  • Brake size: 12¼″ × 3⅜″ electric drum
  • Tube diameter: 3.5″ extra-heavy straight axle tube
  • Hubface/Spring Center: 75/56
  • Bolt pattern: 8x6.5
  • Stud size: 9/16″
  • ABS: Not compatible with ABS systems

How to Measure: Hubface is measured from one hub face (where the studs come out) to the hub face on the opposite side. Spring Center is measured from the center of one spring seat to the center of the opposite spring seat.

What’s Included:

  • (2) 8K True Trailer Axles — 8,000 lb Electric Brake, 12¼″ × 3⅜″ (3.5″ tube)
  • (2) U-Bolt Kits for 8,000 lb Axles (9/16″ diameter)
  • (1) Trailer Tandem Slipper Hanger Kit for 5,200–8,000 lb Axles
  • (4) 6-Leaf 29 1/2″ × 2″ Wide HD Slipper Springs for 8,000 lb Axles
  • (4) 16″ 14-Ply Radial TWA — ST235/80R16, 8 Lug Semi Steel — Silver/Gray Finish
  • (2) Tandem Axle 10x72 Steel Tread Plate Double-Broke Trailer Fenders
  • (2) Tandem Axle Double-Broke Fender Backs — Smooth
  • (1) 25K Gooseneck Coupler — 2 5/16″ Adjustable Round
  • (2) 12K Drop-Leg Side-Pin Spring-Loaded Jacks w/ Handle
  • (4) Red 6″ Oval LED S/T/T Lights
  • (2) Amber 6″ Oval LED S/T/T Midship Lights
  • (6) Flush-Mount Grommets for 6″ Oval Lights
  • (6) 3-Prong Pigtails for LED Lights — 10″
  • (4) 3/4″ Amber Side Marker Lights
  • (2) 3/4″ Red Side Marker Lights
  • (1) License Plate Light — Rectangular
  • (1) Sealed ID Light Bar — 3 Red Lights
  • (1) 7-Way Plug, 36 ft — 6-way cable, 14 gauge
  • (2) Safety Chains — 3/8 x 39″ w/ 1 Clevis Hook (27.4K capacity)
  • (30) Reflective DOT Tape — 18″ Strips
  • (1) 12-Volt Trailer Breakaway Kit
  • (1) Breakaway Switch

Key Benefits:

  • Complete, ready-to-build package — no sourcing parts from multiple stores
  • Matched fitment — every component sized to work together
  • 16,000 lb combined capacity — heavy-duty 14-ply semi-steel wheels

Ideal For:

  • Gooseneck & flatbed trailers
  • Equipment & dump haulers
  • Complete DIY trailer builds
  • Commercial & fleet builds

Why Buy from The Trailer Parts Outlet?

  • This kit is proudly assembled in the U.S.A.
  • Fast shipping — order today, ships tomorrow
  • Bulk & wholesale options available
  • Financing options
  • Dedicated expert support

Have questions? Call or message us at (936) 289-3191 — we’re here to help you find the perfect kit for your trailer build. Order your 8K Complete Gooseneck Trailer Kit today and get building with confidence!