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Front Sump Oil Control for 1JZ and 2JZ Swaps and OEM Applications
The 1JZ and 2JZ engine family is famous for making big power, but the stock front sump oil pan was never designed for hard cornering or sustained boost. The Moroso 20947 steel lower oil pan replaces the factory pan with a fully baffled, high flow design that keeps oil where it needs to be during aggressive driving, whether the engine is still in its original chassis or freshly swapped into something else.
Key Features
- Fully fabricated steel lower oil pan with a laser cut rail for a precise gasket seal
- Four integrated trap doors control oil movement during hard acceleration, braking, and cornering
- The 20947 includes a heavy duty high flow oil pickup and louvered anti-slosh baffle plate
- Compatible with OEM Toyota and Lexus cast aluminum upper pans
- Black powder coat finish applied in house by Moroso
- -8AN magnetic drain plug with O-ring seal for easy servicing and debris capture
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 2000-2005 | Lexus | IS300 |
| 1998-2005 | Lexus | GS300 |
This pan matches the factory front sump configuration used on 1JZ-GE, 1JZ-GTE, 2JZ-GE, and 2JZ-GTE engines and is also widely used for engine swaps into other chassis requiring a front sump layout. Always verify pan depth and pickup clearance against your specific swap application before ordering.
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 20947 |
| UPC | 084663209475 |
| Brand | Moroso |
| Material | Steel |
| Sump Type | Wet Sump, Front Sump |
| Depth | 4 inches |
| Length | 7-9/16 inches |
| Width | 16 inches |
| Capacity | 6 quarts plus filter |
| Engine Application | Toyota/Lexus 1JZ-GE, 1JZ-GTE, 2JZ-GE, 2JZ-GTE |
| Warranty | Moroso manufacturer's warranty, see moroso.com/warranties |
What's Included
- 1x steel front sump oil pan
- Oil pickup
- Louvered anti-slosh baffle plate
- Magnetic drain plug with O-ring seal
About Moroso
Moroso Performance Products has engineered racing and performance components since 1968, earning a reputation among engine builders and racers for oil system parts that solve real clearance and oil control problems. Their JZ series pans like the 20947 are a proven choice for both stock chassis and popular engine swap platforms, built to exacting tolerances in the USA.
FAQ
What is the 20947?The Moroso 20947 is a steel front sump oil pan built for Toyota and Lexus 1JZ and 2JZ engines, featuring internal baffling, a high flow pickup, and a 6 quart capacity for improved oil control during hard driving.
What vehicles use this oil pan from the factory?The front sump configuration is used from the factory on Lexus IS300 and Lexus GS300 models equipped with the 2JZ-GE engine. It is also commonly installed during 1JZ and 2JZ engine swaps into other chassis.
Can this oil pan be used for an engine swap?Yes, this front sump pan is a popular choice for 1JZ and 2JZ swaps where front sump clearance is needed. Always check pan dimensions against your specific chassis before finalizing a swap.
Does the 20947 work with the stock upper pan?Yes, it is designed to be compatible with the OEM Toyota and Lexus cast aluminum upper pan, so no upper pan modification is required in most applications.
What is the oil capacity of this pan?This pan holds 6 quarts of oil in addition to filter capacity, which is an improvement over many stock configurations and helps reduce oil temperature during sustained hard use.
Does it include an oil pickup and baffle plate?Yes, a heavy duty high flow oil pickup and a louvered anti-slosh baffle plate are both included with this pan.
Can I use my factory oil pickup with this pan?No. This pan is 4 inches deep and is designed to be used only with the included oil pickup. Pickups from shallower factory pans are not recommended and will not provide correct clearance.
What drain plug does this oil pan use?It uses a -8AN magnetic drain plug with an O-ring seal, which simplifies servicing and helps capture metal debris for early wear detection.
Install Instructions
- Drain the existing oil and remove the factory or old oil pan from the engine.
- Clean the pan rail surface on the engine block or upper pan thoroughly before installation.
- Remove the factory oil pickup and install the included high flow pickup with the anti-slosh baffle plate.
- Test fit the pan dry to confirm clearance with your specific chassis or swap application.
- Install a new gasket or appropriate sealant matching your upper pan interface.
- Mount the lower pan and torque bolts in the correct sequence to the engine manufacturer's specification.
- Refill with the correct oil type and quantity for a 6 quart plus filter capacity system.
- Run the engine and check for leaks before returning the vehicle to service.
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