Vaico V40-0559 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap for Saab and Saturn

The VAICO V40-0559 engine coolant reservoir cap is an OE-style replacement for select Saab and Saturn applications. It is built to match the listed dimensions and OE reference 09202799 for a direct-fit cooling system service part.

Key Features

• Engine coolant reservoir cap for the cooling system
• Dimensions: 61 mm length, 61 mm width, 36.5 mm height
• Fits 2003-2011 Saab 9-3, N/A
• Fits 2008-2009 Saturn Astra, N/A
• Cross-references Dayco 28490 for the same application
• Cross-references URO 9202799 for the same application

Detailed Description

VAICO V40-0559 is an engine coolant reservoir cap designed for vehicles that use OE number 09202799. This cap is specified for the Saab 9-3 from 2003-2011 and the Saturn Astra from 2008-2009, making it a focused replacement part for cooling system maintenance. The compact 61 mm by 61 mm footprint and 36.5 mm height help match the original reservoir cap form factor.

VAICO’s VAICO line is used for OE-style replacement parts, and this coolant reservoir cap follows that approach with application-specific fitment for Saab 9-3 and Saturn Astra models. The part number V40-0559 is the reference to use when matching the cap to the listed vehicles and OE cross-reference.

What It Helps Address

• Cracked or worn coolant reservoir cap sealing surfaces
• Loss of proper coolant system pressure retention
• Coolant seepage around the reservoir cap area
• Cap fitment issues on vehicles using OE No. 09202799
• Cooling system service needs on Saab 9-3 and Saturn Astra

Installation Notes and Tips

Verify the OE number and cap dimensions before installation. Match the reservoir neck and locking style to the original cap, and inspect the coolant reservoir sealing surface for damage or debris before fitting the new cap. Confirm the application against the vehicle’s cooling system specification for Saab 9-3 or Saturn Astra.

Quality Assurance

VAICO V40-0559 is an aftermarket replacement part built around the listed OE reference and fitment data. Use the part number V40-0559 and OE No. 09202799 to confirm application before purchase.