Rein PSR0221 Power Steering Reservoir

OE-Quality Power Steering Reservoir

The Rein PSR0221 power steering reservoir is an OE-quality replacement built for Audi and Volkswagen applications that require a reservoir with cap fitment. It is made from virgin plastic to help resist heat-cycle cracking and maintain fluid containment over long service life.

Use PSR0221 when you need a direct-fit power steering reservoir for select Audi A4, A6, S4, S6, RS6, Allroad Quattro, and Volkswagen Passat models. Rein PSR0221 is engineered to match OE materials and tolerances for a clean replacement on the original steering system.

Key Features

• Virgin plastic construction with no regrind
• Resists cracking and wear from repeated heat cycles
• Direct-fit design for straightforward installation
• Built to strict engineering standards for material and dimensional accuracy
• OE-quality replacement for power steering fluid storage and return

Fitment Details

• Fits 2001-2005 Audi Allroad Quattro, N/A, with cap.
• Fits 1999-2004 Audi A6, N/A, with cap.
• Fits 1999-2004 Audi A6 Quattro, N/A, with cap.
• Fits 2003-2004 Audi RS6, N/A, with cap.
• Fits 2002-2003 Audi S6, N/A, with cap.
• Fits 2000-2002 Audi S4, N/A, with cap.
• Fits 1996-2001 Audi A4, N/A, with cap.
• Fits 1996-2001 Audi A4 Quattro, N/A, with cap.
• Fits 1998-2001 Volkswagen Passat, N/A, with cap.
• Fits 2001 Volkswagen Passat, N/A, to VIN 3B1049999, with cap.
• Fits 1998 Audi A6, N/A, from VIN 4BW000001, with cap.
• Fits 1998 Audi A6 Quattro, N/A, from VIN 4BW000001, with cap.

What It Helps Address

• Cracked reservoir housing from heat cycling
• Power steering fluid loss from reservoir failure
• Leaking or brittle original plastic tank
• Service issues on aging Audi A4, A6, S4, and Volkswagen Passat steering systems

Installation Notes

Confirm the vehicle’s VIN breakpoints and cap requirement before ordering, especially on 1998 Audi A6/A6 Quattro and 2001 Volkswagen Passat applications. This reservoir is application-specific, so compare the original unit and cap style before installation. Part number PSR0221 is also referenced for the same application as 8D0422371H.

Quality Assurance

Rein manufactures this reservoir to OE-quality material and tolerance standards, using virgin plastic to improve durability under repeated heat cycles. Warranty coverage is 24 months or 24,000 miles.