Description
Heat shield for Citroën and Peugeot vehicles with 1.4 VTi and 1.6 VTi engines.
Protect your exhaust system and underbody components with this OEM-fit heat shield designed for Citroën and Peugeot 1.4 VTi and 1.6 VTi powertrains. Supplied to fit original mounting points and manufactured to match the dimensions of the factory component, this shield reduces heat transfer from the exhaust and catalytic converter to nearby wiring, plastic parts and the vehicle floor, preventing premature damage and rattling noise. Popularly searched by part numbers 758430780 and 1723GT, this replacement shield is suitable for mechanics and DIY installers looking for a reliable exhaust protection part.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.4 VTi, 1.6 VTi
- Product Codes: 758430780, 758430780-03, 1723GT
- Additional Numbers: 1723GT
Compatibility
Common fitment includes (non-exhaustive): Citroën C3 Picasso, Citroën C4 II, Peugeot 308 (including T9). Check the part numbers above to confirm exact fitment for specific variants and model years.
Function And Common Failure Causes
The heat shield protects vehicle bodywork, wiring looms, fuel lines and interior components from high temperatures generated by the exhaust and catalytic converter. It also helps to reduce cabin heat and prevent warping or melting of heat-sensitive parts. Heat shields commonly fail due to corrosion of the metal plate or its fixings, mechanical damage from road debris, or fatigue and loosening of mounting bolts leading to rattling and loss of effective heat protection.
Installation Recommendations
- Safety first: Raise and support the vehicle securely on jack stands or a lift before working underneath.
- Access: Remove any panels or undertrays that obstruct access to the heat shield and locate the mounting bolts or clips.
- Support the exhaust: Where required, support the exhaust or catalytic converter to avoid strain on mounts when loosening fasteners.
- Fastener care: Cut away rusted fixings if necessary and replace studs, bolts or clips with new hardware. Apply suitable high-temperature anti-seize to threads where appropriate.
- Seating: Ensure the new shield sits flush against its supports and that any insulating pads are correctly positioned.
- Tightening: Tighten fasteners to the manufacturer’s torque specification where available; otherwise secure firmly without over-torquing to avoid shearing corroded studs.
- Final check: Start the engine and check for any new exhaust noise or contact; road-test to ensure no rattles develop.
Why Replace
Replacing a degraded heat shield restores protection to nearby components, eliminates annoying rattles caused by loose shields, and reduces the risk of heat-related damage to fuel and electrical systems. Using the correct part number ensures proper fit and long-term performance.
Part Numbers And Notes
This item is commonly searched under part numbers 758430780 and 1723GT. Verify fitment by matching these codes to the vehicle’s existing part for the most reliable replacement choice.
