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 $198

Online price only

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4.7
Rated 4.7 out of 5 stars
282 Reviews
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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 282 reviews
Total 5 star reviews: 234 Total 4 star reviews: 24 Total 3 star reviews: 12 Total 2 star reviews: 4 Total 1 star reviews: 8
282 reviews
  • RS
    Robert S.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    Trailers tires and axles

    Will be using you again in the future ,quite pleased with your service . Thanks

    The Trailer Parts Outlet
    2 hours ago

    Great to hear you're pleased with our service, Robert! We look forward to helping you again in the future. Thank you for your business and your 5 star review!

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

  • RL
    Ron L.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Great customer service

    Had an issue with receiving my order, Fed x seemed to misplace it. I called Trailer Parts on a Monday and received my axle on Wednesday. Very pleased with this axle and service.

    The Trailer Parts Outlet
    2 hours ago

    So glad we could get that sorted out for you quickly, Ron! We know how frustrating shipping mix-ups can be, but we're thrilled you received your 3500 lb axle by Wednesday and are pleased with both the product and our service. Thank you for your business and your 5 star review!

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

  • JS
    Jorge S.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Very happy with the product.

    I ordered the trailer axle and had the leaf spring supports modified to fit my trailer. They modified it and it came out perfect!! Installation was extremely easy. Everything lined up perfectly. Love the fact that lug nuts were included (was not expecting) along with the grease fitting on the hubs.

    Priced was excellent and shipping was fast.

    Extremely happy with the product and the whole process. Thank you!!

    The Trailer Parts Outlet
    2 hours ago

    Great to hear the modifications came out perfect and everything lined up so well during installation, Jorge! We're thrilled you were pleased with the included lug nuts and grease fitting - those little extras make all the difference. Thank you for your business and your 5 star review!

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

  • CA
    chad a.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Item as described

    Item as described

    Bolted right up with no issue.

    Price was good as well.

    The Trailer Parts Outlet
    2 hours ago

    Great to hear it bolted right up with no issues and you're happy with the price, Chad! Thank you for your business and your 5 star review!

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

  • RP
    Robert P.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Axle

    The axle is much better quality than the o e that came on the trailer. I am satisfied

    The Trailer Parts Outlet
    2 hours ago

    Great to hear the axle is much better quality than the original and you're satisfied with it, Robert! Thank you for your business and your 5 star review!

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