REDOX Silicone Coolant Hose Kit for Ferrari 348 TB TS GTB GTS Spider

Product Definition and Technical Specifications

The REDOX silicone hose kit for Ferrari 348 completely replaces the original hoses in the engine cooling circuit. Specifically designed for the side-mounted radiator cooling system of the Ferrari 348, this kit guarantees perfect sealing and optimal resistance to extreme thermal variations of the 3.4L V8 engine.

Manufactured from multi-layer VMQ silicone with 3-ply textile reinforcement and 4mm wall thickness, these hoses offer mechanical strength superior to original rubber hoses. The operating temperature range extends from -50°C to +180°C, well above the thermal demands of the Ferrari 348 engine.

Applications and Compatible Models

This silicone hose kit is compatible with all Ferrari 348 versions produced between 1989 and 1995:

• Ferrari 348 TB (Trasversale Berlinetta) - 1989 to 1993
• Ferrari 348 TS (Trasversale Spider with targa top) - 1989 to 1993
• Ferrari 348 GTB (Gran Turismo Berlinetta) - 1993 to 1995
• Ferrari 348 GTS (Gran Turismo Spider) - 1993 to 1995
• Ferrari 348 Spider (full convertible) - 1993 to 1995
• Ferrari 348 Serie Speciale - 1992 to 1993

Compatible with both generations of Bosch Motronic 2.5 and Motronic 2.7 engine management systems. The kit fits perfectly with the specific cooling system of the 348 with side-mounted radiators, an architecture that differs from the Ferrari 308 and 328 with front-mounted radiators.

OEM Reference Numbers for Original Hoses

REDOX silicone hoses replace the following Ferrari original part numbers for the Ferrari 348 cooling circuit:

• Ferrari Reference 136513: Return hose to radiator (2 pieces per vehicle)
• Ferrari Reference 122219: Header tank to water pump hose

These OEM references correspond to the rubber hoses fitted as original equipment on Ferrari 348 TB, TS and Motronic 2.7 versions. The REDOX kit ensures direct fitment without modification, as an exact replacement for original hoses.

Benefits of Permanent Stock and Fast Delivery

REDOX maintains permanent stock of hose kits for Ferrari 348 at its French warehouse in Les Ulis. Any order placed before 5pm is dispatched the same day by GLS courier, with guaranteed delivery within 24 to 48 hours across mainland France and Europe.

This immediate availability avoids sourcing delays from official Ferrari networks, often faced with stock shortages on cooling system parts for classic models. REDOX permanent stock guarantees year-round availability, independent of production cycles.

Fast 24-48h delivery minimizes downtime for your Ferrari 348 during preventive maintenance interventions or emergency repairs following hose failure. Each kit is quality-controlled before dispatch and delivered complete with all necessary hose clamps for installation.

Main Technical Characteristics

Material and Construction

• Automotive-grade VMQ silicone (polydimethylsiloxane)
• 3-ply multi-layer structure with integrated textile reinforcement
• Wall thickness: 4mm across all hoses
• Smooth outer surface finish for easy cleaning

Thermal Performance

• Minimum temperature: -50°C (extreme frost resistance)
• Maximum continuous temperature: +180°C
• Resistance to thermal peaks of Ferrari V8 engine
• Dimensional stability across entire temperature range

Mechanical Advantages

• Superior elasticity compared to original rubber (stress reduction)
• Tear and abrasion resistance
• No hardening with ageing
• Total impermeability to coolant fluids (water and glycol)
• Chemical resistance to anti-corrosion and antifreeze additives

Kit Specifications

• Number of hoses: complete kit for cooling circuit
• Hose clamps: included and sized for each hose
• Available colours: Red, Blue, Black
• REDOX manufacturer warranty: lifetime against material defects
• Packaging: ready-to-fit kit with instructions

Advantages vs Original Rubber Hoses

• Lifespan 5 times longer than rubber hoses
• Elimination of cracking and hardening risks
• Resistance to swelling under pressure (no ballooning)
• Maintains sealing even after years of use
• Enhanced engine aesthetics with colour choice

FAQ - Frequently Asked Questions

Why replace my Ferrari 348 original rubber hoses with silicone?

The original rubber hoses of the Ferrari 348 undergo natural degradation linked to repeated thermal cycles of the V8 engine. After several years of use, the rubber hardens, loses its elasticity and develops micro-cracks invisible to the naked eye. This degradation leads to risks of coolant leaks or even sudden hose rupture while driving. REDOX VMQ silicone eliminates these problems thanks to its molecular stability and thermal ageing resistance.

Is this kit compatible with my Ferrari 348 regardless of production year?

Yes, this REDOX silicone hose kit is universal for all Ferrari 348 produced from 1989 to 1995. It fits TB, TS, GTB, GTS and Spider versions, equipped with either Motronic 2.5 or Motronic 2.7 engine management. The kit accommodates the specific architecture of the 348 cooling system with side-mounted radiators. No modifications required, installation is performed as direct replacement of original hoses.

Are the supplied hose clamps suitable for high-performance silicone hoses?

The hose clamps included in the REDOX kit are specifically sized to ensure optimal clamping of silicone hoses. Unlike standard clamps, they apply uniform pressure around the entire circumference of the hose without creating local deformation. The recommended torque guarantees perfect sealing while preserving silicone integrity. These clamps are corrosion-resistant and maintain their clamping tension over time.

What is the actual lifespan of these silicone hoses on a Ferrari 348?

REDOX silicone hoses are designed for virtually unlimited lifespan under normal operating conditions of a Ferrari 348. Unlike rubber hoses that require replacement every 5 to 7 years, VMQ silicone undergoes no structural degradation related to thermal ageing or exposure to coolant fluids. REDOX even provides a lifetime warranty on these hoses, demonstrating their exceptional reliability. Only incorrect mechanical intervention or impact could damage the silicone hoses.

Can I fit these hoses myself or must I use a Ferrari specialist?

Replacing cooling hoses on Ferrari 348 requires complete draining of the circuit, removal of original hoses and refitting of the silicone kit with air bleeding of the system. If you have experience in automotive mechanics and appropriate tools (wrenches, clamp pliers, catch pan), the intervention is achievable. However, given the complex architecture of the 348 cooling system with side-mounted radiators, we recommend entrusting the installation to a mechanic experienced with Ferrari, especially to ensure complete air bleeding of the circuit.

Which colour should I choose for my Ferrari 348 hoses?

The choice of colour is purely aesthetic and does not influence the technical performance of REDOX silicone hoses in any way. Red is traditionally associated with Ferrari and creates visual harmony with the brand's iconic colour. Blue brings a modern and sporty contrast, particularly appreciated in track preparation. Black offers total discretion for a preserved original appearance. All three colours benefit from the same VMQ silicone quality and lifetime REDOX warranty.

Are these hoses suitable for competition use with my Ferrari 348?

Absolutely. REDOX silicone hoses are widely used in professional motorsport, including Ferrari 348 Challenge and 348 GT Competizione. Their thermal resistance up to 180°C, high pressure resistance and superior elasticity make them perfectly suited equipment for track conditions. The thermal demands of circuit use (rapid temperature rises, repeated cycles) are perfectly handled by 3-ply VMQ silicone. Many historic Ferrari racing teams use REDOX hoses for the reliability they provide.

How do I maintain REDOX silicone hoses on my Ferrari 348?

Maintenance of silicone hoses is minimal. During periodic coolant circuit flushes, visually check for leaks at clamps and general condition of hoses. Silicone requires no special treatment. External cleaning with soapy water during engine detailing is sufficient to preserve aesthetic appearance. Check clamp tightness after the first 1000 kilometres following installation, then once annually during annual maintenance of your Ferrari 348. Silicone does not harden or crack, so maintenance is limited to visual inspection.