Wacker Neuson 5000164221 Exhaust Compressor Side Insulator
Wacker Neuson

Wacker Neuson 5000164221 Exhaust Compressor Side Insulator

$19.11
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SKU:
5000164221-Wacker Neuson
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The Wacker Neuson is a genuine OEM Exhaust Compressor Side Insulator designed for the G25 and G20 series mobile generators. As a factory-original component, this insulator is manufactured to the exact specifications used in Wacker Neuson's assembly process, ensuring a correct, hassle-free installation every time. It is confirmed compatible across a wide range of G25 configurations — including Standard, Cold Weather, Custom, Extended Run, Battlefield, and 600V Tier 4 variants — as well as select G20 mobile generator models. Choosing the correct OEM part for this application protects thermal performance and keeps your generator running at its rated output.

Key Features

  • Genuine OEM Thermal Integrity — Factory-original material grade ensures the insulator maintains its heat-barrier properties under sustained generator load cycles, not just at startup.
  • Direct-Fit Installation — Mounts to the exhaust compressor side using the original bolt pattern and interface geometry, requiring no trimming or rework to seat correctly.
  • Broad G25 and G20 Coverage — Verified fitment across Standard, Cold Weather, Custom, Extended Run, 600V, and Tier 4 Final and Tier 4i G25 configurations, plus compatible G20 mobile generator variants.
  • Sustained Heat Management — A correctly functioning insulator keeps exhaust-side heat contained and directed away from adjacent components; a degraded insulator can accelerate wear on surrounding parts and disrupt generator thermal balance.
  • Part Number Confidence — Sourced directly from Wacker Neuson, so 5000164221 matches exactly what was installed at the factory — critical when ordering for multi-unit fleets with varying Tier configurations.

The exhaust compressor side insulator acts as a thermal barrier between the exhaust compressor assembly and the surrounding generator housing and components. Its role is to limit heat transfer away from the exhaust path, protecting nearby parts from excessive operating temperatures that could cause premature wear, seal degradation, or component failure. When this insulator becomes cracked, warped, or worn, heat management in the exhaust zone is compromised — often leading to accelerated deterioration of adjacent components and reduced overall generator service life.

Part Details

Part Number5000164221
Old Part Number0164221
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionExhaust Compressor Side 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.