Vaico V40-0555 Engine Oil Filler Cap

Engine Oil Filler Cap for OE 56 50 831

This VAICO engine oil filler cap is a direct-fit replacement for vehicles that use OE number 56 50 831. The yellow cap measures 58 mm wide, 58 mm long, and 32 mm high, making it a practical OE-style service part for maintaining a secure oil fill opening.

VAICO V40-0555 is listed for applications including Saab 900, Saab 9000, Saab 9-5, Cadillac Catera, Cadillac CTS, Saturn LS2, Saturn LW2, Saturn L300, Saturn LW300, and Saturn Vue. If you are searching for an engine oil filler cap for Saab 9-5 or a replacement oil cap for Cadillac CTS and Saturn L300 models, this part number is a direct reference point.

• Brand: VAICO
• Part number: V40-0555
• OE reference: 56 50 831
• Yellow finish for easy identification in the engine bay
• Dimensions: 58 mm length, 58 mm width, 32 mm height
• Lightweight design at 0.032 kg
• Cross-reference example: 24437483

Product Details

VAICO VAICO V40-0555 is an engine oil filler cap built around OE number 56 50 831 for a range of Saab, Cadillac, and Saturn vehicles. The fitment data includes 1995-1997 Saab 900, 1995-1998 Saab 9000, 1999-2003 Saab 9-5, 1997-2001 Cadillac Catera, 2003-2004 Cadillac CTS, 2000 Saturn LS2, 2000 Saturn LW2, 2001-2005 Saturn L300, 2001-2003 Saturn LW300, and 2002-2003 Saturn Vue. For buyers comparing an OE-style engine oil filler cap for Saab 9000 or a replacement cap for Saturn Vue and Cadillac Catera, V40-0555 provides a clear OE-number match.

VAICO’s VAICO line is used for replacement parts that follow OE-number-based identification, which helps simplify part matching during service work and routine maintenance.

Common Issues This Part Can Address

• Missing or damaged engine oil filler cap
• Incorrect cap fitment after prior replacement
• Oil fill opening left exposed during maintenance
• Need to match an OE-number-specific replacement cap
• Worn cap that no longer seats properly

Installation Notes and Tips

Confirm the OE number 56 50 831 and compare the cap dimensions before ordering. Check the existing oil filler opening for wear, debris, or damage before installing the replacement cap. Verify the cap seats fully and locks or seals as required by the vehicle’s original design. For fitment confirmation, match the vehicle year, make, and model exactly to the listed applications, including Saab 900, Saab 9-5, Cadillac CTS, and Saturn L300.

Quality Assurance

VAICO V40-0555 is cataloged as an OE-number-based replacement part for the listed applications, with fitment tied to confirmed vehicle data and OE reference 56 50 831.