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 $139.99

Online price only

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4.7
Rated 4.7 out of 5 stars
372 Reviews
Shipping: Calculated at Checkout
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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 372 reviews
Total 5 star reviews: 308 Total 4 star reviews: 31 Total 3 star reviews: 16 Total 2 star reviews: 8 Total 1 star reviews: 9
Reviews Summary
Customers say these trailer axles install quickly and fit precisely when measured correctly. Users appreciate the included lug nuts, grease fittings, and spare dust caps. Many mention the solid construction and competitive pricing. Common feedback includes satisfaction with the welds and materials. Customers frequently note that dust caps arrive damaged during shipping, though extras are provided. Several highlight helpful customer service for custom orders and measurements.
Customers Talked About
372 reviews
  • WC
    William C.
    Verified Buyer
    22 seconds ago
    Rated 5 out of 5 stars
    Trailer axle

    Fit perfectly ordered second one

  • MB
    Mike B.
    Verified Buyer
    2 hours ago
    Rated 4 out of 5 stars
    Mike B.

    This was a great buy and came reality quickly. I replace my rusted out axle with this new one in no time at all and matched right up. Like they always say, measure at least 2 or 3 times before ordering so you purchase the right size product.

  • H
    Harrison
    16 hours ago
    Rated 2 out of 5 stars
    2 Stars

    Shipping took a few days morw than what was expect, label got ruined in transit so had to sit a day to get replaced, twice. Then the axle showed up with clear wear on packing wrapping on hubs. One stud on one hub was ruined.

  • MC
    Michael C.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    Boat trailer replacement axle.

    Everything was perfect.

  • DW
    Dain W.
    Verified Buyer
    6 days ago
    Rated 5 out of 5 stars
    Great axle, custom order was a perfect fit.

    I did a custom order and the fit was perfect, wheel offset was perfect. Just a great all around package, came with lug nuts and extra dust caps which was nice.