Silicone upper radiator hose Massey Harris Pony 820 TM - Peugeot 203 engine

Product Definition and Technical Specifications

The REDOX upper radiator hose is a high-performance VMQ silicone coolant hose designed to replace the original natural rubber hose fitted between the Peugeot 203 engine and the top inlet of the radiator on the Massey Harris Pony 820 TM tractor. It carries hot coolant from the engine to the radiator and is built to withstand the continuous demands of agricultural use.

Verified technical specifications:

• Material: VMQ silicone (vinylmethylsilicone), high-performance grade
• Construction: 3-layer reinforced build, 4 mm wall thickness
• Temperature range: -50°C to +180°C in continuous service
• Compatibility: suitable for all standard agricultural coolants
• Included: hose clamps, direct fit with no modification required

Original natural rubber hoses degrade over time through expansion, cracking and eventual failure. VMQ silicone maintains its shape and flexibility across the full thermal range, resisting hardening in cold conditions and deformation under heat.

Applications and Compatible Models

This hose is designed specifically for the Massey Harris Pony 820 TM tractor equipped with the Peugeot 203 engine. The Pony 820 TM is the fully French-manufactured variant of the Massey Harris Pony tractor, assembled in France with the Peugeot 203 four-cylinder petrol engine. The designation TM stands for "Tout Métal" (all-metal construction, entirely French-built).

The hose fits tractors in active agricultural use as well as machines undergoing restoration. Installation is direct, as a like-for-like replacement for the original rubber hose, with no modifications to the tractor required.

For other Pony variants (diesel versions with Hanomag engine, Pony 812, Pony 821) or other engine configurations, compatibility should be confirmed with REDOX before ordering.

OEM References for the Original Hose

No verified OEM part number has been identified for the upper radiator hose of the Massey Harris Pony 820 TM specifically fitted with the Peugeot 203 engine. The references documented for the diesel Pony 820D/821D variants (Hanomag engine) are not transferable to the TM version, which has a different connection geometry. The REDOX hose is engineered as a direct replacement for the original part, regardless of its manufacturer reference number.

Stock and Fast Delivery

REDOX dispatches all orders placed before 5 pm on the same working day. Delivery is handled by GLS throughout France and across Europe within 48 hours. Founded in 2010, REDOX is a recognised specialist in high-performance silicone hoses serving the automotive, agricultural, marine and aviation sectors.