Universal Parts 180-94 CN250 cylinder stud Bolt B, 185mm long with M8x1.25 threads, showing threaded ends and unthreaded center shaft Universal Parts 180-94 CN250 cylinder stud Bolt B, 185mm long with M8x1.25 threads, showing threaded ends and unthreaded center shaft
Universal Parts 180-94 CN250 cylinder stud Bolt B, 185mm long with M8x1.25 threads, showing threaded ends and unthreaded center shaft

Universal Parts

Universal Parts 185mm Cylinder Stud B - CN250

SKU 180-94
$3.00
Shipping calculated at checkout.
Description

This Universal Parts cylinder stud Bolt B replaces worn or damaged cylinder fastening hardware on compatible 250cc, four-stroke, water-cooled CN250 engines. With a 185mm overall length and M8×1.25 threads, it gives your engine repair the correctly sized replacement when the original Bolt B stud needs attention. The long shaft is threaded at both ends.

Key Features

  • Bolt B replacement: Intended for the matching cylinder-stud position on compatible CN250 engines.
  • 185mm overall length: Provides a clear measurement to compare with the removed stud.
  • M8×1.25 threads: Metric 8mm nominal thread diameter with a 1.25mm pitch.
  • Double-ended design: Threaded ends with a long unthreaded center shaft.
  • Individual replacement: One stud for targeted engine repair rather than a complete stud set.

Technical Specifications

  • Brand: Universal Parts
  • Part number: 180-94
  • Manufacturer part number: 642
  • Part type: Cylinder stud, Bolt B
  • Overall length: 185mm
  • Thread size: M8×1.25
  • Engine platform: Honda CN250 and compatible derivatives
  • Engine application: 250cc, four-stroke, water-cooled
  • Quantity: One stud

Compatibility

Make / platform Application
Honda / CN250 Matching 250cc water-cooled four-stroke cylinder-stud applications
CFMoto V3 and V5 with matching stud specification
Boreem / BMS, Kazuma, Roketa, SUNL, Tank Compatible CN250-style 250cc water-cooled four-stroke applications
Other makes Matching CN250-derived engines, including the 172MM application reference

 

Confirm the engine version, Bolt B location, 185mm overall length and M8×1.25 threads against the original stud or service information before ordering. Different stud positions can require different lengths; brand or displacement alone does not establish fitment.
Product Diagrams
Features
  • Bolt B cylinder stud for matching CN250 applications
  • 185mm overall length
  • M8x1.25 threads
  • Threaded at both ends with unthreaded center shaft
  • Single-stud replacement; verify original stud position
Specifications

Brand: Universal Parts; Part number: 180-94; MPN: 642; Type: Cylinder stud Bolt B; Overall length: 185mm; Thread: M8x1.25; Engine: CN250 and compatible 172MM applications; Displacement: 250cc; Cycle: Four-stroke; Cooling: Water-cooled; Quantity: One stud
Model Fitments

Honda CN250 and compatible 250cc water-cooled four-stroke derivatives; CFMoto V3/V5; Boreem/BMS, Kazuma, Roketa, SUNL, Tank and other matching CN250-style applications; 172MM engine reference; Verify Bolt B position, 185mm overall length and M8x1.25 threads
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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