Gates 25309 Radiator Coolant Hose - Lower, Lower - Engine To Pipe or Upper

Overview of Gates Flexible Coolant Hose (Standard) 25309

The Gates Flexible Coolant Hose (Standard) part number 25309 is engineered for reliable radiator coolant transfer in a variety of vehicles. Designed with durable EPDM and steel materials, this hose supports efficient cooling system performance in models like the Chevrolet Camaro, Ford Mustang, and Hyundai Sonata.

• Constructed from EPDM rubber and reinforced steel for durability
• End 1 inside diameter: 1.25 inches (32 mm)
• End 2 inside diameter: 1.5 inches (38 mm)
• Centerline length: 26 inches (660 mm)
• Non-molded, flexible design for ease of installation

Product Line Details: Flexible Coolant Hose (Standard)

The Flexible Coolant Hose (Standard) line by Gates offers a balance of flexibility and strength suitable for standard cooling system applications. This product line focuses on delivering hoses that maintain coolant flow integrity under typical operating conditions without molded fittings, allowing for versatile fitment across multiple vehicle makes and models.

Detailed Product Description

This radiator coolant hose features EPDM rubber, known for its resistance to heat, ozone, and coolant chemicals, combined with steel reinforcement to maintain structural integrity under pressure. The hose’s two different inside diameters—1.25 inches (32 mm) on one end and 1.5 inches (38 mm) on the other—allow it to connect components with varying sizes. With a centerline length of 26 inches (660 mm), it fits a range of vehicles including Buick Century, Chevrolet Caprice, Ford Thunderbird, GMC S15 Jimmy, Hyundai Sonata, Lincoln Continental, Mercury Cougar, Oldsmobile Cutlass Ciera, and Pontiac Firebird.

Compatible Vehicles and Common Applications

• Buick Century, Grand LeMans
• Chevrolet Camaro, Caprice, Corvette, Malibu, Monte Carlo, El Camino
• Ford Mustang, Thunderbird, LTD
• GMC S10, S10 Blazer, S15, S15 Jimmy
• Hyundai Sonata
• Lincoln Continental, Mark VII, Marquis
• Mercury Cougar
• Oldsmobile Cutlass Ciera, Cutlass Cruiser
• Pontiac Firebird, Parisienne

Common Issues Addressed by This Radiator Coolant Hose

• Coolant leaks due to cracked or worn hoses
• Overheating caused by restricted coolant flow
• Swelling or softening of old hoses under heat stress
• Incompatibility with varying radiator and engine fittings
• Failure of molded hoses in tight engine compartments

Installation Notes and Tips

• Ensure the hose ends match the specified inside diameters (1.25" and 1.5") for proper fit
• Inspect clamps and surrounding components for wear before installation
• Use coolant-compatible lubricant to ease hose installation if necessary
• Verify centerline length of 26 inches fits the vehicle’s routing path
• Do not attempt to stretch or compress the hose beyond its designed length

Quality Assurance and Warranty

Gates manufactures the Flexible Coolant Hose (Standard) 25309 to meet industry standards for durability and performance. The use of EPDM and steel materials ensures resistance to heat and pressure typical in automotive cooling systems. While specific warranty details are not provided here, Gates products generally come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.