Overview
Upgrade your trailer suspension with the AL‑KO Parabolic Slipper Spring (P/N 584527D). Featuring a single parabolic (tapered) leaf design, this spring has a full 1400 kg capacity per pair, fits standard AL‑KO eye‑to‑tail hanger systems, and comes pre-fitted with a ½″ nylon bush.
The Dacromet coating provides exceptional corrosion resistance—ideal for marine and coastal use—while its modern design ensures a smoother ride, longer fatigue life, and reduced weight compared to traditional multi-leaf setups.
✅ Key Features
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Single parabolic flex-leaf design for smoother performance and lower weight
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Rated at 1400 kg per pair (approximately 700 kg per spring)
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Pre-installed ½″ nylon bush for direct eye‑to‑tail hanger fitment
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Dacromet zinc-alloy finish for superior rust resistance in saltwater or humid environments
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OEM AL‑KO durability and reliability across use cases (boat trailers, heavy light‑trailers)
📐 Specifications
| Feature | Specification |
|---|---|
| Part Number | 584527D |
| Type | Parabolic single‑leaf slipper spring |
| Length (Eye‑to‑Tail) | ~755 mm |
| Width | 45 mm |
| Thickness (mid-length) | ~18 mm (tapers to ~9 mm ends) |
| Load Rating | ~700 kg per spring (1,400 kg per pair) |
| Nylon Bush | ½″ ID × 7/8″ OD |
| Coating | Dacromet zinc‑alloy for marine-level protection |
| Fitment | AL‑KO eye‑to‑tail hanger systems |
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