3.5k TK Trailer Axle - 3500 lb Idler 5 lug - Dexter Compatible

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3.5k TK Trailer Axle - 3500 lb Idler 5 lug - Dexter Compatible

3.5k TK Trailer Axle - 3500 lb Idler 5 lug - Dexter Compatible

SKU : 35IDTK6146545

Online price only

Regular price $193

Online price only

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4.7
Rated 4.7 out of 5 stars
294 Reviews
Shipping: Calculated at Checkout
Axle Options:
Hubface/Spring Center:



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Custom Axle Reference Guide


Custom Axle Reference Guide
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3.5K straight idler trailer axle with 5×4.5 bolt pattern

3.5K Straight Idler Trailer Axle — 3,500 lb capacity | 5×4.5 bolt pattern | Fully assembled

Upgrade your light-duty trailer with this 3,500 lb idler trailer axle. Built for durability, performance, and easy installation, this 3.5K 5-lug trailer axle is a perfect fit for RVs, cargo trailers, utility trailers, and boat trailers. Whether you're replacing a worn-out axle or building a custom trailer, it delivers the strength and reliability you need.

Axle Specifications

  • Load rating: 3,500 lbs (3.5K)
  • Axle type: Idler
  • Tube diameter: 2 3/8" straight axle tube
  • Bolt pattern: 5x4.5"
  • Stud size: 1/2"-20 × 1.99" (press-in)
  • Tire compatibility: Fits 13"–15" tire & wheel assemblies
  • Spring mount: Underslung (lower ride height)
  • Product weight: 54 lbs
  • Compatibility: Direct replacement for Dexter, AL-KO, Lippert, and Hayes axles

What’s Included (Pre-Assembled Internal Components)

  • 3.5K TK Axle Beam — 2 3/8″ tube
  • 3.5K TK Axle Hub — 5×4.5 or 5×5 lug
  • 3.5k (3500 lb Capacity) Bearing Kit - includes:
    • 10-19 Grease Seal 2.565" O.D 1.719" I.D
    • L44649 Outer Bearing 1.063" I.D
    • L68149 Inner Bearing 1.378" I.D
    • L44610 Outer Race 1.98" O.D
    • L68111 Inner Race 2.362" O.D
    • Cotter Pin (standard spindles)
    • Grease Caps with Rubber Plug 1.99"
  • 3.5K TK axle studs — 1/2″

Key Benefits

  • Fully assembled & packed with high-temp axle grease — ready for fast installation
  • High-strength steel construction — Ensures durability and a smoother highway towing experience
  • EZ-Lube design — grease the axle via zerk fitting without removing the hub

Ideal For

  • RV builds or replacements
  • Utility trailer conversions
  • Boat trailer upgrades
  • Cargo & equipment trailers

Why Buy from The Trailer Parts Outlet?

  • This Axle is proudly manufactured 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 axle for your trailer build or repair.
Order your 3.5K Straight Idler Trailer Axle today and get back on the road with confidence!

4.7
Rated 4.7 out of 5 stars
Based on 294 reviews
Total 5 star reviews: 245 Total 4 star reviews: 25 Total 3 star reviews: 12 Total 2 star reviews: 4 Total 1 star reviews: 8
Customers Talked About
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294 reviews
  • JL
    Justin L.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    Perfect Fit

    Spring mounts were custom and they were able to get it shipped in just a couple of days. Bolted on without issues.

    The Trailer Parts Outlet
    39 seconds ago

    Great to hear the spring mounts worked perfectly and we were able to get your custom 3.5k TK Trailer Axle shipped out so quickly, Justin! We're thrilled it bolted on without any issues. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet

  • DW
    David W.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Axle

    This site had the information to select the proper axle. Perfect fit

    The Trailer Parts Outlet
    1 week ago

    Great to hear our site had all the information you needed to select the proper axle, David! We're thrilled the 3.5k TK Trailer Axle was a perfect fit for your project. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet

  • MS
    Michael S.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Quality kit

    Good quality items, nice welds and high quality materials. No short cuts here. Arrive in good condition. Bearing caps were mangled but they send spares in the kit. Would recommend. No issues.

    The Trailer Parts Outlet
    1 week ago

    Great to hear you're happy with the quality of the 3.5k TK Trailer Axle and that the welds and materials met your expectations, Michael! We appreciate you noting the attention to detail and we're glad the spare bearing caps were included to ensure everything worked out perfectly. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet

  • E
    Esli
    1 week ago
    Rated 5 out of 5 stars
    5 Stars

    Fast shipping , good price and perfect fit

  • BS
    Bryan S.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Replacement Axle

    Good service and shipping.

    The Trailer Parts Outlet
    1 week ago

    Great to hear you had good service and shipping with your 3.5k TK Trailer Axle, Bryan! We're thrilled you're happy with your replacement axle. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet