Wacker Neuson 5200020259 Bolt — Genuine OEM for APT4S & APT4T Pumps

The Wacker Neuson Bolt is a genuine OEM replacement designed for the APT4S and APT4T pump series, including surge brake, electric brake, and cold weather configurations. Sourced directly from Wacker Neuson, this bolt is manufactured to the exact material and dimensional standards used in original production — ensuring a correct, trouble-free installation every time. It fits across the full APT4S and APT4T lineup, covering both standard and cold weather variants, so you can confirm compatibility with confidence before ordering.

Key Features

• Genuine OEM Hardware Grade — Manufactured to the same material and torque specification as the original production bolt, so thread engagement and clamping load remain consistent with the pump's engineered assembly.
• Drop-In Replacement — Matches the original thread pitch, length, and head profile of the 5200020259, slotting directly into existing mounting points without chasing threads or shimming.
• Broad APT Pump Coverage — Fits APT4S (with skid) and APT4T (surge brake and electric brake) pumps in both standard and cold weather configurations, covering the full range of these trailer-mounted pump models.
• Structural Integrity Where It Counts — A bolt operating under the vibration and load cycles of a water pump application must maintain its clamp force; using the correct OEM-grade fastener prevents loosening, misalignment, and component damage over time.
• Braking System Compatibility — This bolt is used across surge brake and electric brake APT4T variants, making correct fastener specification important for maintaining the integrity of the trailer brake assembly.

A bolt may appear to be a simple fastener, but in pump and trailer brake assemblies it performs a critical structural role — holding components under precise clamping force through continuous vibration and operational stress. When a bolt is the wrong grade, thread pitch, or length, it can back out, strip, or fail to seat correctly, leading to component movement, misalignment, or accelerated wear on surrounding parts. Using the correct OEM-specified bolt like the Wacker Neuson 5200020259 ensures the assembly stays torqued and secure through the full working life of the machine.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.