Wacker Neuson 5000178333 Small Bulkhead Insulator
Wacker Neuson

Wacker Neuson 5000178333 Small Bulkhead Insulator

$12.30
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SKU:
5000178333-Wacker Neuson
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The Wacker Neuson Small Bulkhead Insulator is a genuine OEM component designed for the G25 and G20 series mobile generators. This part is sourced directly from Wacker Neuson, ensuring it meets the exact specifications required across the full range of G25 configurations, including Standard, Cold Weather, Custom, Extended Run, Battlefield, and Tier 4 Final variants, as well as select G20 mobile generator models. Whether your unit is skid-mounted, trailer-mounted, or equipped with an extended run tank, part is the correct factory replacement. Confirm your model number before ordering to ensure compatibility with your specific machine configuration.

Key Features

  • Genuine OEM Dielectric Integrity — Manufactured to Wacker Neuson's original insulation specification, maintaining the correct electrical isolation properties required in a generator bulkhead application.
  • Drop-In Replacement — Matches the original mounting geometry and bulkhead opening dimensions, allowing direct installation without modification to the panel or housing.
  • Broad G25 and G20 Coverage — Verified fitment across Standard, Cold Weather, Custom, Extended Run, Tier 4i, and Tier 4 Final G25 variants, plus compatible G20 mobile generator models.
  • Protects Wiring at Panel Pass-Throughs — A correctly seated bulkhead insulator prevents conductor abrasion and chafing where cables pass through metal panels, reducing the risk of insulation breakdown over time.
  • Electrical Safety Critical — In generator applications, a cracked or missing bulkhead insulator can compromise the isolation between energized conductors and the generator enclosure, making timely replacement essential for safe operation.

A bulkhead insulator is a small but essential fitting installed at the point where electrical wiring passes through a metal panel or bulkhead in the generator enclosure. Its job is to electrically isolate the conductor from the surrounding metal structure, preventing short circuits and protecting wire insulation from being cut or worn by the panel edge. In a portable generator like the G25, these components are exposed to vibration, heat cycles, and weather, all of which can cause the insulator to crack or degrade over time. A failed bulkhead insulator leaves conductors vulnerable to grounding faults and potential electrical hazards, making it one of those small parts that carries outsized importance for safe, reliable generator operation.

Part Details

Part Number5000178333
Old Part Number0178333
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionSmall Bulkhead Insulator

Compatibility & Fitment

Name Model Machine Number
Mobile Generator, Custom G25 5000620346, 5000620344, 5000620345, 5000620642, 5000009466, 5000620004, 5000620640, 5000620709, 5000620641, 5000009368, 5200005557, 5200003991, 5000620931, 5200001316, 5200009372, 5200009376, 5200009370, 5200009371, 5200009373, 5200009377, 5200014461, 5200009375, 5200009374, 5200014460, 5200014462, 5000621005, 5100041584, 5200022587, 5100045084, 5100041580, 5100041592, 5000620706, 5100017591, 5100022834, 5100041581, 5100041582, 5100041583, 5100045541, 5100045542, 5100050326, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508
Mobile Generator G20 5200016628, 5200022625

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.