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34 mm Intake Valve for CSC TT250 SG250 250cc

Original replacement component for CSC TT250 and SG250. This part is identified by CSC ZT58-100 and Zongshen manufacturer code 100108483.

What This Part Does and Why You Might Need It

An intake valve opens to admit air/fuel charge and seals combustion pressure when closed. Bent, burnt or worn valves may contribute to low compression, poor idle and difficulty starting; verify compression and valve seat condition.

OEM Identification and Specifications

  • CSC SKU: ZT58-100
  • Zongshen manufacturer reference (2026 stock export): 100108483
  • Product type: Engine intake valve
  • Position: Engine cylinder head intake port
  • Intake valve head diameter 34 mm; overall length 91 mm; Zongshen 100108483; alternate published catalog code 15701-LA12-0000
  • Alternate published OEM reference: 15701-LA12-0000 (correspondence requires verifying the original part)

Fitment and Important Ordering Details

Cataloged CSC applications: TT250 and SG250. This is one individually sold component, unless the description explicitly identifies a multi-piece assembly. Match the original part number, shape and dimension before ordering. Similar CG125/CG200/CG250 parts can vary by design and production revision; no unverified model compatibility is claimed.

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