Wacker Neuson 1000124450 Cooler Cap

The Wacker Neuson is a genuine OEM Cooler Cap designed for PT6Y and PT6YT series self-priming centrifugal trash pumps. Sourced directly from Wacker Neuson, this part carries the same specifications as the original component installed at the factory. Confirmed fitment includes PT6Y, PT6Y EPA T4, PT6Y-AU, PT6Y-SA, PT6YT, and PT6YT-IN models, making it the correct choice for operators running any variant of the 6-inch PT6Y platform.

Key Features

• Genuine OEM Integrity — Manufactured to Wacker Neuson's original specifications, ensuring the cap seats and seals exactly as the original did on the cooling system.
• Direct-Fit Replacement — Designed to drop into place on the cooler assembly without rework, using the same thread pattern and seating geometry as the part it replaces.
• Broad PT6Y Platform Coverage — Compatible with PT6Y, PT6Y EPA T4, PT6Y-AU, PT6Y-SA, PT6YT, and PT6YT-IN series trash pumps — one part number covers the full 6-inch pump family.
• Preserves Cooling System Pressure — A correctly sealing cooler cap maintains the system's pressure rating; a worn or cracked cap can allow coolant loss and lead to overheating during high-demand pumping operations.
• Verified Part Number — Order with confidence: 1000124450 is the current Wacker Neuson part number for this cap across all listed PT6Y and PT6YT configurations.

The cooler cap seals the opening on the engine cooling system's reservoir or heat exchanger, maintaining the correct pressure level within the coolant circuit. By holding that pressure, it raises the boiling point of the coolant and prevents vapor lock, which is critical when a high-output 6-inch trash pump is running continuously under load. When the cap's pressure valve weakens or the sealing gasket deteriorates, coolant can escape as steam, coolant levels drop, and the engine becomes vulnerable to heat-related damage.

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.