Stant 10240 Engine Coolant Reservoir Cap

OE Type Reservoir Cap for Saturn Cooling Systems

Stant 10240 is an OE Type Reservoir Cap built for a 15 psi threaded filler neck on a closed cooling system. It is made from durable plastic and is specified for Saturn coolant reservoir applications that require this pressure rating.

Key Features

• 15 psi pressure rating for closed-system coolant reservoirs
• Threaded filler neck design
• Durable plastic construction
• OE Type Reservoir Cap from Stant
• Direct-fit cooling hardware for select Saturn models

Product Details

Stant 10240 is an engine coolant reservoir cap engineered for Saturn vehicles that use a threaded, closed-system reservoir neck. The 15 psi rating helps maintain the cooling system’s specified pressure level, which is important for stable coolant operation and proper reservoir sealing. This part number, 10240, is listed for Saturn SC1, SC2, SL, SL1, SL2, SW1, SW2, and SC applications across the 1991-1994 model years.

The OE Type Reservoir Cap line is focused on replacement parts that follow original-style fitment and function for cooling system service. If you are replacing a worn or damaged Saturn coolant reservoir cap, Stant 10240 provides a pressure-rated solution for the correct threaded filler neck design. This part number 10240 is also referenced as replaced by 10239 in the listed fitment notes.

Vehicle Fitment

• Fits 1993-1994 Saturn SC1, N/A
• Fits 1993-1994 Saturn SC2, N/A
• Fits 1991-1994 Saturn SL, N/A
• Fits 1991-1994 Saturn SL1, N/A
• Fits 1991-1994 Saturn SL2, N/A
• Fits 1993-1994 Saturn SW1, N/A
• Fits 1993-1994 Saturn SW2, N/A
• Fits 1991-1992 Saturn SC, N/A

Common Replacement Reasons

• Coolant reservoir cap no longer seals properly
• Pressure loss in a closed cooling system
• Cracked or deteriorated plastic cap body
• Incorrect cap pressure rating on a Saturn reservoir
• Need for a threaded filler neck reservoir cap

Installation Notes

Verify the reservoir neck style and pressure rating before installation. Stant 10240 is specified for a threaded filler neck and a 15 psi closed-system application. Confirm the cap seats fully and locks or threads on correctly before returning the vehicle to service.

Quality Assurance

Stant manufactures this OE Type Reservoir Cap to match the specified cooling-system pressure requirement for the listed Saturn applications. The part is built as a replacement cooling component for vehicles that call for a 15 psi threaded reservoir cap.