A-Premium APPSH391 Power Steering Pressure Line Hose Assembly

The A-Premium APPSH391 is a direct-fit, OEM-replacement power steering pressure line hose assembly designed for Cadillac DeVille, DTS, and Seville models equipped with a Hydroboost (Hydraulic Brake Booster) system. This hose carries high-pressure power steering fluid from the pump to the hydroboost unit, restoring proper steering assist and brake booster function.

Important Fitment Notes:

• For Cadillac Seville 2004, this part fits the SLS model only
• This hose is designed exclusively for vehicles with a Hydroboost system — it is not compatible with conventional or non-Hydroboost systems

Key Specifications:

• Type: Power Steering Pressure Line Hose Assembly
• Hose Material: CSM (Chlorosulfonated Polyethylene) — resistant to heat, ozone, and power steering fluid
• Length: 33.5 inches
• End 1 Fitting: 5/8 in. Female O-Ring
• End 2 Fitting: 5/8 in. Male O-Ring
• Bracket Included: No
• Bushing Included: No
• Switch Port Included: No
• Quantity: 1

OEM & Cross-Reference Part Numbers:

• GM / General Motors: 26076053
• Sunsong: 3402603
• Edelmann: 92269

Key Features:

• Precision-engineered to OEM specifications for a direct, no-modification fit
• CSM hose construction delivers superior resistance to heat, ozone, and fluid degradation
• High-pressure rated design built to withstand the demands of a hydroboost power steering system
• UV-resistant construction maintains performance even under prolonged sun exposure
• Backed by A-Premium's 2-year unlimited-mileage warranty against manufacturing defects

This power steering pressure hose is a reliable, cost-effective alternative to dealer parts, engineered to restore OEM-level steering performance and hydroboost operation. Always verify your vehicle's brake booster system type before installation.