Dorman Products

Dorman 603-703 Coolant Reservoir

In stock
SKU: 591|603703
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
$33.71
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|603703
  • Barcode 19495122548

Share this item!

Description

Product Description

This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

  • Direct replacement - this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution - engineered for a seamless installation
  • Durable construction - manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design - backed by 100 years of automotive aftermarket experience

Detailed Applications

Year Make Model Configuration Positions Application Notes
2005 Audi Allroad Quattro V8 4.2L (4172cc) Front
2005 Volkswagen Passat L4 1.8L (1781cc) Front
2005 Volkswagen Passat L4 120 2.0L (1967cc) Front
2005 Volkswagen Passat V6 2.8L (2771cc) Front
2004 Audi Allroad Quattro V8 4.2L (4172cc) Front
2004 Audi RS6 V8 4.2L (4172cc) Front
2004 Volkswagen Passat L4 1.8L (1781cc) Front
2004 Volkswagen Passat L4 120 2.0L (1967cc) Front
2004 Volkswagen Passat V6 2.8L (2771cc) Front
2003 Audi Allroad Quattro V8 4.2L (4172cc) Front
2003 Audi RS6 V8 4.2L (4172cc) Front
2003 Volkswagen Passat L4 1.8L (1781cc) Front
2003 Volkswagen Passat V6 2.8L (2771cc) Front
2002 Audi S4 V6 2.7L (2671cc) Front
2002 Volkswagen Passat L4 1.8L (1781cc) Front
2002 Volkswagen Passat V6 2.8L (2771cc) Front
2001 Audi A4 L4 1.8L (1781cc) Front
2001 Audi A4 V6 2.8L (2771cc) Front
2001 Audi A4 Quattro L4 1.8L (1781cc) Front
2001 Audi A4 Quattro V6 2.8L (2771cc) Front
2001 Audi A6 V6 2.8L (2771cc) Front
2001 Audi A6 Quattro V6 2.8L (2771cc) Front
2001 Audi S4 V6 2.7L (2671cc) Front
2001 Volkswagen Passat L4 1.8L (1781cc) Front
2001 Volkswagen Passat V6 2.8L (2771cc) Front
2000 Audi A4 L4 1.8L (1781cc) Front
2000 Audi A4 V6 2.8L (2771cc) Front
2000 Audi A4 Quattro L4 1.8L (1781cc) Front
2000 Audi A4 Quattro V6 2.8L (2771cc) Front
2000 Audi A6 V6 2.8L (2771cc) Front
2000 Audi A6 Quattro V6 2.8L (2771cc) Front
2000 Audi S4 V6 2.7L (2671cc) Front
2000 Volkswagen Passat L4 1.8L (1781cc) Front
2000 Volkswagen Passat L4 1.9L Front
2000 Volkswagen Passat V6 2.8L (2771cc) Front
1999 Audi A4 L4 1.8L (1781cc) Front
1999 Audi A4 V6 2.8L (2771cc) Front
1999 Audi A4 Quattro L4 1.8L (1781cc) Front
1999 Audi A4 Quattro V6 2.8L (2771cc) Front
1999 Audi A6 V6 2.8L (2771cc) Front
1999 Audi A6 Quattro V6 2.8L (2771cc) Front
1999 Volkswagen Passat L4 1.8L (1781cc) Front
1999 Volkswagen Passat L4 1.9L Front
1999 Volkswagen Passat V6 2.8L (2771cc) Front
1998 Audi A4 L4 1.8L (1781cc) Front From VIN 8D-W-007 800
1998 Audi A4 V6 2.8L (2771cc) Front From VIN 8D-W-007 800
1998 Audi A4 Quattro L4 1.8L (1781cc) Front From VIN 8D-W-007 800
1998 Audi A4 Quattro V6 2.8L (2771cc) Front From VIN 8D-W-007 800
1998 Audi A6 V6 2.8L (2771cc) Front From VIN 4B-W-000 001
1998 Audi A6 Quattro V6 2.8L (2771cc) Front From VIN 4B-W-000 001
1 2 »

Product Specifications

Cap Included: Yes
Cap Type: Spring Loaded Twist
Color: White
Height: 113 mm
Length: 267.5 mm
Material: Plastic
Mounting Brackets Included: Yes
Mounting Hardware Included: No
Mounting Hole Quantity: 3
Package Contents: 1 Coolant Reservoir; 1 Cap
Package Quantity: 1
Packaging Type: Box
Pressurized: Yes

OE Numbers

DIRECT OE CROSS
8D0121403F VOLKSWAGEN
8D0121403J VOLKSWAGEN
8D0121403L VOLKSWAGEN
NON-DIRECT OE CROSS
3B0121321 VOLKSWAGEN