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Dorman 603-905 Power Steering Reservoir - view 1

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DormanPart #: 603-905

Dorman 603-905 Power Steering Reservoir

Name: Dorman 603-905 Power Steering Reservoir
Brand: Dorman
SKU: BKKY-603-905
Price: 59.19 USD
Availability: InStock

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⚙️ 139 vehicles fit this part

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🚗Fitment: Buick, Chevrolet, Pontiac, Saturn, and Oldsmobile, Rendezvous, Century, Terraza, Impala, Monte Carlo, Uplander, Venture, Aztek, Grand Am, Montana, Relay, Alero, Silhouette, Malibu, Grand Prix, Lumina, Cutlass, Trans Sport, Skylark, Achieva, Cutlass Supreme, Regal, Beretta, Corsica, Lumina APV, Lumina Van, and Cutlass Ciera

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Overview of the Dorman Power Steering Reservoir 603-905

The Dorman 603-905 power steering reservoir is designed for reliable fluid storage in select GM vehicles. This black plastic reservoir includes a cap and is engineered as an attached type, providing a direct replacement for worn or damaged units in Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models.

Constructed from durable black plastic material
Attached reservoir type with included reservoir cap
No mounting bracket, fittings, or installation hardware included
Designed for direct replacement in specific GM vehicles
Compatible with multiple Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models

Detailed Product Description

The Dorman 603-905 power steering reservoir is a plastic, attached reservoir designed to hold power steering fluid securely and maintain system pressure. Its black color matches original equipment aesthetics, and the included reservoir cap ensures a sealed environment to prevent contamination. This reservoir does not come with mounting brackets, fittings, or installation hardware, so reusing existing components is necessary. It is not remote mounted, meaning it installs directly on or near the power steering pump assembly.

This reservoir is compatible with a range of GM vehicles, including Buick Achieva, Chevrolet Impala, Pontiac Grand Prix, Saturn L-Series, and many others. The part number 603-905 ensures precise fitment for these models, making it a suitable replacement for worn or leaking reservoirs.

Common Applications and Issues Addressed

Replacement for cracked or leaking power steering reservoirs
Restores proper fluid containment to prevent leaks
Helps maintain correct power steering fluid levels
Prevents contamination of power steering fluid
Supports smooth steering performance by ensuring fluid availability

Installation Notes and Tips

Reuse existing mounting brackets and fittings as none are included
Ensure the reservoir cap is securely tightened to avoid leaks
Check power steering fluid levels after installation and top off as needed
Inspect hoses and connections for wear during replacement
Follow vehicle-specific service manual instructions for removal and installation

Quality Assurance and Warranty

Dorman power steering reservoirs are manufactured to meet or exceed OEM specifications for fit and function. The 603-905 part undergoes quality checks to ensure durability and compatibility with designated Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models. Warranty coverage details should be confirmed through the product documentation or manufacturer resources.

Brand	Dorman
Part Number	603-905
Color	Black
Fittings Included	No
Installation Hardware Included	No
Material	Plastic
Mounting Bracket Included	No
Package Contents	Power Steering Reservoir
Remote Mounted	No
Reservoir Cap Included	Yes
Reservoir Type	Attached

This part fits 139 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position
2007	Buick	Rendezvous	3.5L	V6	N/A
2006	Buick	Rendezvous	3.5L	V6	N/A
2005	Buick	Century	3.1L	V6	N/A
2005	Buick	Rendezvous	3.4L	V6	N/A
2005	Buick	Terraza	3.5L	V6	N/A
2005	Chevrolet	Impala	3.4L	V6	N/A
2005	Chevrolet	Monte Carlo	3.4L	V6	N/A
2005	Chevrolet	Uplander	3.5L	V6	N/A
2005	Pontiac	Aztek	3.4L	V6	N/A
2005	Pontiac	Grand Am	3.4L	V6	N/A
2005	Pontiac	Montana	3.5L	V6	N/A
2005	Pontiac	Montana	3.4L	V6	N/A
2005	Saturn	Relay	3.5L	V6	N/A
2004	Buick	Century	3.1L	V6	N/A
2004	Buick	Rendezvous	3.4L	V6	N/A
2004	Chevrolet	Impala	3.4L	V6	N/A
2004	Chevrolet	Monte Carlo	3.4L	V6	N/A
2004	Oldsmobile	Alero	3.4L	V6	N/A
2004	Oldsmobile	Silhouette	3.4L	V6	N/A
2004	Pontiac	Aztek	3.4L	V6	N/A
2004	Pontiac	Grand Am	3.4L	V6	N/A
2004	Pontiac	Montana	3.4L	V6	N/A
2003	Buick	Century	3.1L	V6	N/A
2003	Buick	Rendezvous	3.4L	V6	N/A
2003	Chevrolet	Impala	3.4L	V6	N/A
2003	Chevrolet	Malibu	3.1L	V6	N/A
2003	Chevrolet	Monte Carlo	3.4L	V6	N/A
2003	Oldsmobile	Alero	3.4L	V6	N/A
2003	Oldsmobile	Silhouette	3.4L	V6	N/A
2003	Pontiac	Aztek	3.4L	V6	N/A
2003	Pontiac	Grand Am	3.4L	V6	N/A
2003	Pontiac	Grand Prix	3.1L	V6	N/A
2003	Pontiac	Montana	3.4L	V6	N/A
2002	Buick	Century	3.1L	V6	N/A
2002	Buick	Rendezvous	3.4L	V6	N/A
2002	Chevrolet	Impala	3.4L	V6	N/A
2002	Chevrolet	Malibu	3.1L	V6	N/A
2002	Chevrolet	Monte Carlo	3.4L	V6	N/A
2002	Oldsmobile	Alero	3.4L	V6	N/A
2002	Oldsmobile	Silhouette	3.4L	V6	N/A
2002	Pontiac	Aztek	3.4L	V6	N/A
2002	Pontiac	Grand Am	3.4L	V6	N/A
2002	Pontiac	Grand Prix	3.1L	V6	N/A
2002	Pontiac	Montana	3.4L	V6	N/A
2001	Buick	Century	3.1L	V6	N/A
2001	Chevrolet	Impala	3.4L	V6	N/A
2001	Chevrolet	Lumina	3.1L	V6	N/A
2001	Chevrolet	Malibu	3.1L	V6	N/A
2001	Chevrolet	Monte Carlo	3.4L	V6	N/A
2001	Oldsmobile	Alero	3.4L	V6	N/A
2001	Oldsmobile	Silhouette	3.4L	V6	N/A
2001	Pontiac	Aztek	3.4L	V6	N/A
2001	Pontiac	Grand Am	3.4L	V6	N/A
2001	Pontiac	Grand Prix	3.1L	V6	N/A
2001	Pontiac	Montana	3.4L	V6	N/A
2000	Buick	Century	3.1L	V6	N/A
2000	Chevrolet	Impala	3.4L	V6	N/A
2000	Chevrolet	Lumina	3.1L	V6	N/A
2000	Chevrolet	Malibu	3.1L	V6	N/A
2000	Chevrolet	Monte Carlo	3.4L	V6	N/A
2000	Oldsmobile	Alero	3.4L	V6	N/A
2000	Oldsmobile	Silhouette	3.4L	V6	N/A
2000	Pontiac	Grand Am	3.4L	V6	N/A
2000	Pontiac	Grand Prix	3.1L	V6	N/A
2000	Pontiac	Montana	3.4L	V6	N/A
1999	Buick	Century	3.1L	V6	N/A
1999	Chevrolet	Lumina	3.1L	V6	N/A
1999	Chevrolet	Malibu	3.1L	V6	N/A
1999	Chevrolet	Monte Carlo	3.1L	V6	N/A
1999	Oldsmobile	Alero	3.4L	V6	N/A
1999	Oldsmobile	Cutlass	3.1L	V6	N/A
1999	Oldsmobile	Silhouette	3.4L	V6	N/A
1999	Pontiac	Grand Am	3.4L	V6	N/A
1999	Pontiac	Grand Prix	3.1L	V6	N/A
1999	Pontiac	Montana	3.4L	V6	N/A
1999	Pontiac	Trans Sport			N/A
1998	Buick	Century	3.1L	V6	N/A
1998	Buick	Skylark	3.1L	V6	N/A
1998	Chevrolet	Lumina	3.1L	V6	N/A
1998	Chevrolet	Malibu	3.1L	V6	N/A
1998	Chevrolet	Monte Carlo	3.1L	V6	N/A
1998	Oldsmobile	Achieva	3.1L	V6	N/A
1998	Oldsmobile	Cutlass	3.1L	V6	N/A
1998	Oldsmobile	Silhouette	3.4L	V6	N/A
1998	Pontiac	Grand Am	3.1L	V6	N/A
1998	Pontiac	Grand Prix	3.1L	V6	N/A
1998	Pontiac	Trans Sport	3.4L	V6	N/A
1997	Buick	Century	3.1L	V6	N/A
1997	Buick	Skylark	3.1L	V6	N/A
1997	Chevrolet	Lumina	3.1L	V6	N/A
1997	Chevrolet	Malibu	3.1L	V6	N/A
1997	Chevrolet	Monte Carlo	3.1L	V6	N/A
1997	Oldsmobile	Achieva	3.1L	V6	N/A
1997	Oldsmobile	Cutlass	3.1L	V6	N/A
1997	Oldsmobile	Cutlass Supreme	3.1L	V6	N/A
1997	Oldsmobile	Silhouette	3.4L	V6	N/A
1997	Pontiac	Grand Am	3.1L	V6	N/A
1997	Pontiac	Grand Prix	3.1L	V6	N/A
1997	Pontiac	Trans Sport	3.4L	V6	N/A
1996	Buick	Century	3.1L	V6	N/A
1996	Buick	Regal	3.1L	V6	N/A
1996	Buick	Skylark	3.1L	V6	N/A
1996	Chevrolet	Corsica	3.1L	V6	N/A
1996	Chevrolet	Lumina	3.1L	V6	N/A
1996	Chevrolet	Lumina APV	3.4L	V6	N/A
1996	Chevrolet	Lumina Van			N/A
1996	Chevrolet	Monte Carlo	3.1L	V6	N/A
1996	Oldsmobile	Achieva	3.1L	V6	N/A
1996	Oldsmobile	Cutlass			N/A
1996	Oldsmobile	Cutlass Ciera	3.1L	V6	N/A
1996	Oldsmobile	Cutlass Supreme	3.1L	V6	N/A
1996	Oldsmobile	Silhouette	3.4L	V6	N/A
1996	Pontiac	Grand Am	3.1L	V6	N/A
1996	Pontiac	Grand Prix	3.1L	V6	N/A
1996	Pontiac	Trans Sport	3.4L	V6	N/A
1995	Buick	Century	3.1L	V6	N/A
1995	Buick	Regal	3.1L	V6	N/A
1995	Buick	Skylark	3.1L	V6	N/A
1995	Chevrolet	Corsica	3.1L	V6	N/A
1995	Chevrolet	Lumina	3.1L	V6	N/A
1995	Chevrolet	Monte Carlo	3.1L	V6	N/A
1995	Oldsmobile	Achieva	3.1L	V6	N/A
1995	Oldsmobile	Cutlass			N/A
1995	Oldsmobile	Cutlass Ciera	3.1L	V6	N/A
1995	Oldsmobile	Cutlass Supreme	3.1L	V6	N/A
1995	Pontiac	Grand Am	3.1L	V6	N/A
1995	Pontiac	Grand Prix	3.1L	V6	N/A
1994	Buick	Century	3.1L	V6	N/A
1994	Buick	Regal	3.1L	V6	N/A
1994	Buick	Skylark	3.1L	V6	N/A
1994	Chevrolet	Corsica	3.1L	V6	N/A
1994	Oldsmobile	Achieva	3.1L	V6	N/A
1994	Oldsmobile	Cutlass			N/A
1994	Oldsmobile	Cutlass Ciera	3.1L	V6	N/A
1994	Oldsmobile	Cutlass Supreme	3.1L	V6	N/A
1994	Pontiac	Grand Am	3.1L	V6	N/A
1994	Pontiac	Grand Prix	3.1L	V6	N/A
1993	Oldsmobile	Cutlass			N/A
1993	Oldsmobile	Cutlass Supreme	3.1L	V6	N/A

* 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:

26048008SK603905

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.