Finding a reliable 1-1/8 inch radiator hose is essential for maintaining optimal coolant flow in performance and heavy-duty engines. This guide reviews top 1-1/8″ hoses designed for high temperature and pressure, suitable for marine, racing, and industrial applications. Each option offers features like 3-ply reinforcement and strong pressure ratings to help prevent leaks and disconnections under demanding conditions.
| Product | Brand | Diameter | Length | Key Features |
|---|---|---|---|---|
| 1-1/8″ x 3.3 ft Heavy Duty Hose | APEX | 1-1/8″ (28 mm) | 3.3 ft (1 m) | 3-ply reinforced, 200 psi, high-temp |
| AC PERFORMANCE 1-1/8″ x 3.3 ft Hose | AC PERFORMANCE Store | 1-1/8″ (28 mm) | 3.3 ft (1 m) | Temperature range -76F to 482F, 200 psi |
| Gates 51802 1-1/8″ Coolant Hose | Gates | 1-1/8″ (28 mm) | 15 13/16″ length | Protective sleeve |
| ASTROSYNC 1-1/8″ x 3.3 ft Hose | ASTROSYNC | 1-1/8″ (28 mm) | 3.3 ft (1 m) | 3-ply reinforced, -76F to 482F, 200 psi |
| Automotive Silicone Tubing 1-1/8″ x 0.5 m | Unknown | 1-1/8″ (28 mm) | 0.5 m (1.6 ft) | Universal 3-ply, high-temp |
1-1/8″ x 3.3 ft Heavy Duty Hose
Applications: Commonly joins two hard pipes while reducing the chance of connections coming apart. Suitable for marine and industrial uses, custom turbo or intercooler piping, DIY radiator cooling systems. Specifications: ID 1-1/8″ (28 mm), length 3.3 ft (1 m), 0.18″ wall, 3-layer polyester reinforcement, 200 psi maximum pressure. The hose delivers strong pressure resistance and reliable coolant circulation in high-temperature environments.
AC PERFORMANCE ID 1-1/8″ x 3.3 FT Hose
Meter hose with straight coupler, no logo. Temperature resistance from -76F to 482F (-40C to 250C) and a 200 psi maximum pressure rating. Designed for high-temperature coolant systems, offering stable performance in demanding automotive and industrial applications.
Gates 51802 Coolant Hose
Features a protective sleeve for abrasion resistance and durability. Length accommodates longer routing with dependable coolant transfer. Gates is recognized for engineering-grade hoses designed for consistent performance in automotive cooling systems and heavy-duty vehicles.
ASTROSYNC 1-1/8″ x 3.3 ft Hose
Designed for heavy-duty connections with 3-ply reinforcement. Temperature range from -76F to 482F (-40C to 250C) and a maximum pressure of 200 psi. Widely used by professionals in racing, trucking, marine, and off-highway sectors for reliable coolant flow under extreme conditions.
Automotive Silicone Tubing 1-1/8″
Universal 3-ply high-temperature radiator coolant hose, 0.5 m length, black. Suitable for a variety of applications requiring a flexible, heat-resistant connection in automotive cooling systems and light industrial setups.
Buying Guide
Key purchase considerations:
- Diameter and length: Confirm the hose ID (internal diameter) and total length to ensure compatibility with your engine’s fittings and routing space.
- Temperature and pressure ratings: Look for hoses rated to at least 200 psi and broad temperature ranges to withstand engine heat and coolant conditions.
- Reinforcement: A 3-ply or multiple-layer reinforcement improves durability under vibration and high-pressure pulses common in performance applications.
- Material compatibility: Ensure compatibility with coolant (water/ethylene glycol) and avoid hoses intended for oil or fuel applications unless specified.
- Protection features: Protective sleeves or abrasion-resistant surfaces help extend life in harsh environments with routing near sharp edges or moving components.
- Intended use: Marine, racing, and heavy-duty industrial applications may have different durability requirements; choose a hose rated for your primary use case.
When selecting a hose, balance flexibility with rigidity necessary for your routing. Consider aftermarket hoses from reputable brands that provide clear specifications and robust reinforcement to minimize leaks and downtime in demanding environments.