Leganza (V100) [GEN] 1998-2002 F18D3 T20SED 92064173 95315645 Cylinder Head for Chevrolet Lacetti Optra Daewoo Nubira Opel Astra F18D3 T20SED Engine – OEM 92064173

Product Overview: This F18D3, T20SED cylinder head is a complete, ready-to-install replacement intended for Chevrolet vehicles. The casting is machined to original-equipment tolerances so deck flatness, valve seat concentricity and port geometry match the factory component. Each assembly is pressure tested and covered by a 12-month warranty. It is intended for replace/repair use and is a cost-effective alternative to reconditioning a damaged original head. The unit is inspected for flatness and gallery cleanliness prior to dispatch, ensuring it is ready for immediate fitment.

Key Features: Each unit is cast in Aluminum Alloy and CNC-machined for flatness, concentricity and port accuracy. Valve seats and guides are installed and honed to size, and combustion chamber volumes are balanced for uniform compression and a clean idle. Extra material around the valve bridge and injector bores improves durability under heat cycling, and the cam carrier face is precision ground for correct bearing clearance. All internal oil and coolant galleries are cleaned, inspected and flow-checked before the head is assembled and tested. The casting is dimensionally stable and accepts original-specification gaskets, bolts and ancillary components.

Vehicle Compatibility: Applications covered by this head include Leganza (V100) [GEN] 1998-2002; LACETTI + NUBIRA + OPTRA (J200) [EUR] 2003-2012; TOSCA (V250) 2006-2010; Lacetti + Optra (J200) [GEN] 2003-2014. Confirmation of the engine code and the numbers on the original casting is recommended to guarantee a correct match. Coverage spans the 2004-2020, 2003-2010, 1999-2003, 2007-2011 model years.

Specifications: Engine code / family: F18D3, T20SED; Displacement: 1.8 L; Cylinder configuration: Inline 4; Valve train: DOHC 16V; Material: Aluminum Alloy; Size: STD; Surface treatment: CNC Machined; Condition: New, supplied for replace/repair use; Warranty: 12 Months; Items included: Valve; Certification: ISO 9001 / TS16949; Packaging: Neutral Export Carton / Wooden Pallet.

OEM / Reference Numbers: Reference numbers associated with this application are 92064173, 93357885, 93333317. Matching at least one number together with the engine code ensures the correct casting revision is supplied.

Applications: This head is intended for Chevrolet cars and light commercial vehicles in daily service, and for the workshops that maintain them.

Benefits / Replacement Information: This replacement head delivers the sealing and flow characteristics of the original while removing the machining costs normally associated with salvage. It restores compression, cures coolant and combustion leakage, and eliminates the risk of reusing a marginal casting.

Installation or Fitment Notes: Prior to installation, remove all traces of the old gasket, clean the block deck and bolt threads, and confirm the head surface is flat. Use the correct gasket for the engine variant, replace torque-to-yield bolts with new items, and follow the workshop torque sequence exactly. Refill with the specified coolant and bleed any trapped air.