TU5J4 Cylinder head

Cylinder head originally fitted to the 1.6L 16V TU5J4 engine found in the Peugeot 106 GTI and Citroën Saxo VTS platforms. This 3D scan provides an accurate spatial reference of the casting, capturing enough surface and port data to create working CAD assemblies, analyze airflow/port geometry, or design custom engine components.

This particular cylinder head has been skimmed, so it is not exactly the original height and combustion chamber volume. The intake and exhaust ports are untouched.

Formats: .STL & .IGES (High-Density Polygon Mesh + Reference Primitives)

Included Primitives & IGES Reference Geometry: To speed up reverse engineering and eliminate tedious manual alignment, this download includes an additional .IGES file containing key parametric CAD primitives aligned directly to the scan mesh:

• Mating Face Planes: 

• Precise reference planes for the cylinder head deck, intake flange, and exhaust flange faces.

• Mounting Hole Centers: 
  Datum points and cylinders for main head bolt locations, manifold studs, and dowel pin alignment.

Ideal Applications

• Custom Intake & Exhaust Design:
  Reference the exact intake/exhaust port geometry and flange bolt patterns to design custom manifolds, ITB setups, or turbo headers in CAD.
• Valvetrain & Clearance Checks:
  Evaluate combustion chamber volume, valve angles, and piston-to-valve clearance when modeling high-lift camshafts or high-compression pistons.
• 3D Printing & Prototyping:
  Print 1:1 scale mock-ups of port interfaces, flange adapters, or modified valvetrain components to test physical fitment before CNC machining.
• 
  

Licensing & Usage Terms

• Personal Use License: Non-exclusive license for private projects, one-off custom fabrications, and personal R&D.

• Commercial Use License: Required if using this scan data to produce commercial components or kits intended for resale.

• Redistribution Prohibited: Re-selling, sharing, or publicly distributing the .STL file or derivatives thereof is strictly prohibited regardless of license type.

• 
  

⚠️ Disclaimer & Fitment Notice

Spatial & Partial Data Reference Only: This 3D scan is a partial dataset of a physical steering pump captured in its as-manufactured state. Due to casting variations, production revisions, and minor wear on reference parts, all critical mounting hole centerlines, thread pitches, and port dimensions must be physically verified prior to final CNC machining or component production.

Power steering systems are safety-critical. Structural and fluid-system evaluations remain the sole responsibility of the builder/engineer. The seller assumes no liability for components or bracketry fabricated using this reference data.

Disclaimer: All brand names, trade names, or vehicle model designations (such as Peugeot, Citroën, 106, Saxo) are used purely for compatible vehicle and chassis identification purposes. This product is an independent aftermarket digital reference file and is not manufactured, endorsed, or affiliated with Stellantis N.V. or its subsidiaries.