CSF Transmission Oil Cooler – Toyota GR Supra (A90/A91)

OVERVIEW

Don't let your Supra or BMW get bogged down by an overheating transmission. CSF's dual-core transmission oil cooler replaces the factory single-core unit with an industry-exclusive stacked twin-core design that carries 240% more core volume and 130% more fluid, for roughly a 30% gain in cooling efficiency.

It is built with CSF's AC condenser technology, uses the OEM top and bottom rubber seals and OEM-style quick-connect fittings, and drops straight in with no modifications. The extra height is kept to 129mm versus the OEM 125mm so it does not block airflow to the rest of the cooling system. Ideal for road racing, drag racing, and any car with added power or transmission tuning.

SPECS

• Dual-core design (industry exclusive) versus the OEM single core
• 240% increase in core volume compared to OEM
• 130% increase in fluid capacity — 550ml versus approximately 240ml OEM
• Two 16mm stacked cores = 32mm core width (44mm overall) versus OEM 15mm core width
• Rear cooler: 15 rows versus OEM 12 rows; front cooler adds a further 12 rows
• 5.4mm tall multi-louvered fin versus OEM 7mm
• Built with CSF's AC condenser technology using a 1-row super-high-pressure 16mm 9-channel microtube for optimal oil flow and maximum surface area contact
• 129mm overall height versus OEM 125mm — more performance without blocking airflow to the rest of the cooling system
• Approximately 30% increase in cooling efficiency
• Uses the OEM top and bottom rubber seals for optimal airflow
• OEM-style quick-connect inlet and outlet connections
• Drop-in fit requiring no modifications to install
• Can be run with CSF's high-performance heat exchanger (CSF #8154) or with the OEM cooling system
• Replaces OEM part numbers 32910-WAA02 (Toyota) and 17219494828 (BMW)
• 2-year limited warranty to the original purchaser under normal use

PARTS INCLUDED

• CSF dual-core transmission oil cooler assembly (front and rear cores)
• Complete kit as supplied by CSF Radiators; see the installation instructions for the full bill of materials

TECH RESOURCES

Additional Parts Required

• None. CSF Radiators specifies no additional hardware for this part — it is a drop-in fit that reuses the OEM seals and quick-connect lines.
• Optional: CSF G-Series High-Performance Heat Exchanger (CSF #8154), which this cooler is designed to run alongside.

Installation

• CSF does not publish a downloadable installation PDF for this part. Printed installation instructions ship in the box.

Notes

• Does not fit late-2024 or 2025+ BMW G2X M340i / M440i built with the B58N engine, which use OE cooler 17218852263. Confirm fitment with Speed Logic if your build date is near the change-over.

PART NUMBER

• 8183

VEHICLE APPLICATIONS