Wacker Neuson 5100039325 Rocker Arm Pivot
Wacker Neuson

Wacker Neuson 5100039325 Rocker Arm Pivot

$5.17
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SKU:
5100039325-Wacker Neuson
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The Wacker Neuson Rocker Arm Pivot is a genuine OEM component designed for GP-series generators and PT-series trash pumps, including the GP2500A, GP3800A, GP5600A, PT2A, PT3A, PT4A, and their international variants. As a direct OEM replacement, this pivot is manufactured to the exact tolerances required by the original engine valvetrain, ensuring the rocker arm operates precisely as it did from the factory. Compatibility extends across both the standard and (I) international variants of the PT2A, PT3A, and PT4A, making this a versatile service part for mixed fleets. Confirm your model and serial number against the fitment list before ordering to be sure this is the correct part for your machine.

Key Features

  • OEM Valvetrain Tolerancing — Manufactured to the exact pivot geometry specified for Wacker Neuson engines, maintaining correct rocker arm geometry and valve lift consistency.
  • Drop-In Replacement — Matches the original mounting position and pivot diameter, installing directly into the rocker arm assembly without additional machining or fitting.
  • Broad Model Coverage — Fits GP2500A, GP3800A, and GP5600A generators, plus PT2A, PT3A, and PT4A trash pumps in both standard and international (I) configurations.
  • Sustained Valve Timing Accuracy — A worn or damaged pivot causes irregular valve actuation, leading to rough running, power loss, and increased engine wear; a fresh OEM pivot restores consistent timing.
  • Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, part number 5100039325 carries the same quality assurance as the component originally installed at the assembly line.

The rocker arm pivot is a small but critical component in an engine's valvetrain. It acts as the fixed fulcrum point around which the rocker arm rotates, transferring motion from the pushrod to open and close the intake and exhaust valves at precisely the right moment. When the pivot wears, becomes grooved, or loses its surface integrity, the rocker arm develops play that disrupts valve timing — symptoms typically show up as a ticking noise, reduced compression, rough idling, or a noticeable drop in power output. Replacing a worn pivot promptly restores the valvetrain's geometry and protects the surrounding components from accelerated wear.

Part Details

Part Number5100039325
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionRocker Arm Pivot

Compatibility & Fitment

Name Model Machine Number
GP2500A GP2500A 5100041977
GP3800A GP3800A 5100041978
GP5600A GP5600A 5100041979
PT2A PT2A 5100042215
PT3A PT3A 5100042216
PT4A PT4A 5100042217, 5100042604
PT2A(I) PT2A(I) 5100042613
PT3A(I) PT3A(I) 5100042614
PT4A(I) PT4A(I) 5100042615

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.