Dorman H621598 Brake Hydraulic Hose - Rear Left, Rear Left Inner or Rear Right Inner

Reliable Brake Hydraulic Hose for Toyota Sienna and Scion iQ

The Dorman H621598 brake hydraulic hose is designed to provide dependable brake fluid transfer for your Toyota Sienna or Scion iQ. Constructed with durable materials, this flexible brake hose ensures consistent performance and safety under various driving conditions.

• Compatible with Toyota Sienna and Scion iQ models
• Flexible hose made from EPDM rubber for durability
• Black outer sleeve constructed from rubber for protection
• Both ends feature treated steel female fittings (M10 x 1.0 thread diameter)
• Overall length of 8.0 inches for precise fitment
• Mounting hardware, brackets, gaskets, or seals not included

Durable Construction and Precise Fitment

This Dorman brake hydraulic hose (part number H621598) features a flexible EPDM rubber hose material that resists heat, ozone, and brake fluid degradation. The black rubber outer sleeve adds an extra layer of protection against abrasion and environmental factors. Both ends of the hose are equipped with treated steel female fittings, each with an M10 x 1.0 thread diameter, ensuring secure and leak-free connections. With an overall length of 8.0 inches, this hose is engineered to match the original equipment specifications for Toyota Sienna and Scion iQ vehicles.

Applications and Common Issues Addressed

• Replacement of worn or cracked brake hydraulic hoses
• Resolving brake fluid leaks caused by damaged fittings or hose material
• Restoring proper brake pressure and pedal feel
• Addressing hose swelling or bulging under pressure
• Preventing brake system failure due to hose deterioration

Installation Notes and Tips

When installing the Dorman H621598 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, avoiding contamination of the brake system. Use appropriate tools to disconnect the treated steel female fittings, and inspect the brake lines for any additional damage. After installing the new hose, bleed the brake system thoroughly to remove air and verify proper brake function. Note that mounting hardware, brackets, gaskets, or seals are not included and may need to be reused or replaced separately.

Quality Assurance and Warranty Information

Dorman manufactures this brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of EPDM rubber and treated steel fittings ensures durability and resistance to common brake system stresses. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult Dorman’s official documentation for exact warranty terms.