Silicone Modine Hose Peugeot 309 GTI 16 — Oil/Water Heat Exchanger — REDOX

Product Definition and Technical Specifications

The REDOX silicone modine hose for the Peugeot 309 GTI 16 is a high-performance coolant hose designed to replace the original rubber hose connecting the cooling circuit to the oil/water heat exchanger — known in French automotive circles as the "modine". This heat exchanger regulates engine oil temperature through the coolant circuit, playing a key role in the reliability and longevity of the XU9J4 and XU9J4Z engines.

REDOX manufactures this hose by hand-winding, followed by oven vulcanisation. The silicone compound is selected from five grades within the VMQ and FVMQ family, delivering outstanding long-term mechanical performance that far exceeds the natural rubber used in the original hose — which is prone to hardening, cracking and eventual failure.

Verified technical specifications:

• Material: VMQ silicone
• Construction: 3-ply reinforced
• Wall thickness: 4 mm
• Temperature resistance: -50 °C to +180 °C continuous
• Hose clamps: included

Applications and Compatible Vehicles

This hose is specifically engineered for the oil/water heat exchanger circuit of the Peugeot 309 GTI 16, fitted with 16-valve engines from the XU9 family:

• Peugeot 309 GTI 16 — engine XU9J4
• Peugeot 309 GTI 16 — engine XU9J4Z

Direct-fit replacement, no vehicle modification required.

OEM Part Reference

The REDOX hose 1343 E4 replaces the original Peugeot manufacturer reference: 1343 E4

Stock Availability and Fast Delivery

REDOX keeps this part in permanent stock. All orders placed before 5 pm are dispatched the same day. Delivery across France and Europe is guaranteed within 48 hours. For owners of the Peugeot 309 GTI 16 whose ageing rubber hoses are increasingly difficult to source, REDOX provides an immediately available, superior-performing replacement.