Wacker Neuson 5000186872 Bearing Cup, Inner
Wacker Neuson

Wacker Neuson 5000186872 Bearing Cup, Inner

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SKU:
5000186872-Wacker Neuson
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The Wacker Neuson Bearing Cup, Inner is a genuine OEM component designed for the G25, G50, and G70 series skid-mounted and trailer-mounted mobile generators, as well as select HI750 and HI900 indirect air heater units. As a factory-sourced part, it is manufactured to the same dimensional and material standards as the original, ensuring a direct, correct-spec installation. This inner bearing cup pairs with its matching cone to form a precision tapered roller bearing assembly critical to smooth, consistent shaft operation. If you are servicing a G50 or G70 generator across Tier 3, Tier 4i, or Tier 4 Final configurations, part number is the correct replacement.

Key Features

  • Precision-Tolerance OEM Geometry — Manufactured to exact taper angle and race surface finish specifications, ensuring proper load distribution across the roller bearing assembly.
  • Drop-In Replacement — Matches the original cup profile and bore dimensions for direct installation without modification to the housing bore or bearing stack.
  • Broad Generator Series Coverage — Compatible with G25, G50, and G70 skid-mounted mobile generators across Tier 3, Tier 4i, and Tier 4 Final emissions configurations, plus HI750 and HI900 indirect air heater models.
  • Maintains Shaft Alignment Under Load — A correctly seated inner bearing cup holds the tapered roller cone in proper alignment, preventing shaft wobble, uneven wear, and premature bearing failure under continuous generator load cycles.
  • Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson parts network, carrying the same part number — 5000186872 — used in the original factory build documentation.

The inner bearing cup is the outer race of a tapered roller bearing assembly — it is the hardened ring pressed into a housing bore that the tapered rollers ride against. Together with the bearing cone, it transfers radial and axial loads away from a rotating shaft and into the surrounding housing structure. When the cup wears, develops pitting, or loses its surface integrity, the bearing loses its ability to distribute load evenly, leading to increased friction, heat buildup, shaft vibration, and eventual bearing seizure — all of which can take a generator offline during critical operations.

Part Details

Part Number5000186872
Old Part Number0186872
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionBearing Cup, Inner

Compatibility & Fitment

Name Model Machine Number
Skid-mounted Mobile Generator, Custom G70 5000620352, 5000620350, 5000620351, 5000620647, 5000620711, 5000620646, 5200001318, 5200003220, 5200006879, 5200003975, 5200003973, 5200003974, 5200014464, 5200004151, 5200014463, 5200014465, 5200008344, 5200008342, 5200008343, 5200008339, 5200008719, 5200008340, 5100025262, 5100025838
Skid-mounted Mobile Generator G50 5000009467, 5000009366, 5000620001, 5200001062, 5200001063, 5200006878, 5200001317, 5200001060, 5200001061, 5200014322, 5200014319, 5200014320, 5200014323, 5200017829, 5200022589, 5100042434, 5200017830, 5100042430, 5100042435, 5000620710, 5100045494, 5000620964, 5000620965, 5000620966, 5100042431, 5100042433, 5100045085, 5100045493, 5100042432, 5100025812, 5100026954, 5100029210, 5100026955, 5100026956
G25 GENERATOR, EXTENDED RUN TANK, SKID G25 5000620709, 5000620706, 5100042510
HI750 DGM HEATER-INDIRECT HI750GM 5000620859, 5000620930
HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 HI750GMHD 5000620969
MGT1S Mobile Generator Trailer, Surge, Pintle Hitch MGT1S 5000009299
MGT2SD Trailer, Surge, Dual Axle, 3500LB Each MGT2SD 5000009303, 5200001325
HI900 Heater-DGM,Srg,-40 HI900DGM 5200014221, 5200014222, 5200014165, 5200014166
MGT1S Trailer, Surge, Pintle Hitch MGT 1S 5200001324

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.