15,000 lb Heavy-Duty Axle Spindle — Fits Dexter 15K Axles
The TAD15K spindle is engineered for Dexter 15K axles used in commercial lowboys, construction equipment haulers, and heavy industrial trailers. Built from forged steel and machined to exact bearing dimensions, this spindle restores critical alignment and load-bearing performance.
| Specification | Detail |
|---|---|
| Axle Rating | 15,000 lb Dexter axle |
| Material | High-carbon forged steel |
| Weight | ~18–19 lb |
Required Bearings & Seals (NOT Included):
- Inner Bearing: 3984 (Race: 3920)
- Outer Bearing: 25580 (Race: 25520)
- Seal: 10-43 — 2.875" ID / 4.50" OD
Applications
- Construction equipment trailers
- Lowboys & detachable goosenecks
- Industrial fleet trailers
- High-capacity heavy haulers
Installation Notes
Due to the heavy-wall tubing used on 15K axles, preheat is often required. Align spindle using a fixture, confirm toe and camber, tack weld, then apply a complete 360° weld. Allow controlled cooling to prevent distortion and install new bearings and seals during final assembly.
We have replacement Axle Spindle Shafts in stock today!
Click here to watch a real step-by-step spindle replacement demonstration
Shipping
We ship quickly and carefully, with tracking provided on every order. Most items ship the same or next business day. Your parts will arrive safely and on time, ready to use.
Returns & Guarantee
Your satisfaction is guaranteed. Returns, refunds, and exchanges are accepted — no hassle. We stand behind every part we sell, so you can purchase with confidence.
Committed to Customer Service
At R and P Carriages, we believe in treating our customers like family. Whether you need a small replacement part or a complete trailer service, we’re here to help with friendly, expert support every step of the way.
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