CSF 3954
CSF part number 3954 is a radiator in the Cooling System system. This catalog matches it to 14 year-and-engine configurations from 1980 to 2025.
Verified fitment includes 2025 Lexus RX350 2.4L L4 Turbocharged ; 2025 Lexus RX450H+ 2.5L L4 ELECTRIC/GAS ; 2025 Lexus RX500H 2.4L L4 ELECTRIC/GAS Turbocharged ; 2025 Toyota Sienna 2.5L L4 ELECTRIC/GAS ; 2024 Toyota Sienna 2.5L L4 ELECTRIC/GAS , plus 9 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is CSF 3954?
CSF part number 3954 is a radiator with published application data for 14 vehicle configurations from 1980 to 2025. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does CSF 3954 fit?
This catalog matches 3954 to 14 year-and-engine configurations from 1980 to 2025. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is CSF 3954 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. CSF 3954 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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