OE Quality
60-Day Returns

Dorman H621426 Brake Hydraulic Hose - Rear Left or Rear Right
Reliable Brake Hydraulic Hose for Lexus SC430
The Dorman H621426 brake hydraulic hose is designed specifically for the Lexus SC430, providing a durable and flexible connection within the brake system. Engineered with quality materials, this brake hose ensures consistent performance and safety under various driving conditions.
- Compatible with Lexus SC430 models
- Flexible hose constructed from EPDM rubber for durability
- Black outer sleeve made of rubber for protection
- Ends feature treated steel fittings: banjo type on one end and female fitting on the other
- Includes gaskets for secure sealing
- Overall length of 14.19 inches with a 13.7-inch axis 1 length
Durable Construction and Precise Fitment
This Dorman brake hydraulic hose (part number H621426) is built with an 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 fittings—one banjo fitting with a 10 mm thread diameter and one female fitting with an M10 x 1.0 inside diameter—ensuring a secure and leak-free connection. The package includes necessary gaskets to maintain proper sealing during installation. This flexible hose is designed to meet the exact specifications required for the Lexus SC430 brake system, supporting reliable hydraulic pressure transfer.
Common Applications and Problem Resolution
- Replacement for worn or cracked brake hydraulic hoses on Lexus SC430
- Solves issues related to brake fluid leaks or reduced hydraulic pressure
- Addresses hose swelling or hardening caused by age and heat exposure
- Prevents brake system failure due to compromised hose integrity
- Restores proper brake pedal feel and responsiveness
Installation Notes and Tips
When installing the Dorman H621426 brake hydraulic hose, ensure the vehicle is securely lifted and supported. Carefully remove the old hose, noting the orientation of fittings. Use the included gaskets to prevent leaks and tighten fittings to manufacturer torque specifications. Avoid twisting or kinking the hose during installation to maintain flexibility and integrity. Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic function.
Quality Assurance and Warranty
Dorman manufactures this brake hydraulic hose to meet or exceed OEM standards for fit, form, and function. The use of treated steel fittings and EPDM rubber materials ensures durability and resistance to common brake system stresses. This part is backed by Dorman's quality assurance processes, providing confidence in its reliability for Lexus SC430 brake system repairs.
| Brand | Dorman |
| Part Number | H621426 |
| Axis 1 Length | 13.7 |
| Bracket Included | No |
| Color | Black |
| Describe Type | Flexible Hose |
| End 1 Fitting Material | Treated Steel |
| End 1 Fitting Type | Banjo |
| End 1 Thread Diameter | 10 mm |
| End 2 Fitting Inside Diameter | M10 X 1.0 |
| End 2 Fitting Material | Treated Steel |
| End 2 Fitting Type | Female |
| Gasket Or Seal Included | Yes |
| Hose Material | EPDM Rubber |
| Jacket Included | No |
| Mounting Hardware Included | No |
| Outer Sleeve Material | Rubber |
| Overall Length | 14.19 |
| Package Contents | 1 Brake Hose; Gaskets |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Lexus | SC430 | Rear Left | |
| 2010 | Lexus | SC430 | Rear Right | |
| 2009 | Lexus | SC430 | Rear Left | |
| 2009 | Lexus | SC430 | Rear Right | |
| 2008 | Lexus | SC430 | Rear Left | |
| 2008 | Lexus | SC430 | Rear Right |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.