Dorman 603-105 Washer Fluid Reservoir - Front

Brand Dorman 603-105
Position Front
Cap Included Yes
Cap Type Yes
Color White
Height 385
Length 260
Material Plastic
Mounting Brackets Included No
Mounting Hardware Included No
Mounting Hole Quantity 2
Package Contents 1 Coolant Reservoir; 1 Cap
Pressurized No
Fits Chevrolet and GMC · 44 vehicles

OE-style replacement. Engineered to match the original part's fit and function.

Heat-resistant plastic. Built to handle underhood heat and engine vibration.

Cap included. Ready to install with the reservoir and cap together.

Cross-references SKP SK603105 and 12363309 for the same application. See all 2.

$56.29Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $56.29
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 603-105 Coolant Reservoir for Astro and Safari

Dorman 603-105 is a replacement coolant reservoir built for front-mounted applications on select Chevrolet Astro and GMC Safari vans. It is made from plastic and includes a cap, giving you a direct-fit solution for restoring proper coolant storage on vehicles with a combined coolant and washer fluid reservoir.

  • Direct replacement coolant reservoir for select Chevrolet Astro and GMC Safari models
  • Plastic construction for underhood use
  • White reservoir body with cap included
  • Engineered to match original fit and function
  • Front position application
  • Mounting hole quantity: 2

Fitment Details

  • Fits 1995-2005 Chevrolet Astro, front, wo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
  • Fits 1995-2005 Chevrolet Astro, front, wo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
  • Fits 1995-2005 GMC Safari, front, wo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
  • Fits 1995-2005 GMC Safari, front, wo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir

What This Reservoir Helps Address

  • Cracked or leaking coolant reservoir housing
  • Loss of coolant from a damaged tank
  • Broken or missing reservoir cap
  • Fitment issues with a worn original reservoir
  • Replacement needs on a Chevrolet Astro or GMC Safari with a combined reservoir setup

Installation Notes

Verify the vehicle uses the combined coolant and washer fluid reservoir configuration before ordering. This Dorman 603-105 reservoir mounts in the front position and uses two mounting holes. Compare the original tank shape, cap style, and hose connections to confirm proper replacement fitment on your Chevrolet Astro or GMC Safari.

Quality Assurance

Dorman manufactures this reservoir from materials selected to handle underhood heat and engine vibration. The part is engineered and manufactured to match the fit and function of the original component. This part cross-references SKP (e.g., SK603105) for the same application.

This part fits 44 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2005ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2005GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2005GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2004ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2004ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2004GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2004GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2003ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2003ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2003GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2003GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2002ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2002ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2002GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2002GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2001ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2001ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2001GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2001GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2000ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2000ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
2000GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
2000GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1999ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1999ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1999GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1999GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1998ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1998ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1998GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1998GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1997ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1997ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1997GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1997GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1996ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1996ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1996GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1996GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1995ChevroletAstro——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1995ChevroletAstro4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
1995GMCSafari——Frontwo/Rear Wiper; Combined Coolant and Washer Fluid Reservoir
1995GMCSafari4.3LV6Frontwo/Liftgate Wiper System; Combined Coolant and Washer Fluid Reservoir
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
SKP — SK60310512363309