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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.
- Brand: Pirate Mfg
- Condition: New
- SKU: ZT58-100
- Manufacturer Part Number: 100108483
- Part Type: Engine intake valve
- Model: TT250; SG250
- Make: CSC Motorcycles
- Fitment Notes:: Factory parts books identify ZT58-100 / 100108483 for CSC TT250 and SG250. Confirm exact model, year and manufacturer number before purchase. Do not equate similar dimensions with verified interchange.
- Country of Manufacture: China
- Performance Part: No
- Items Included: Engine intake valve
- Number of Pieces: 1
- Country of Origin: China





