GReddy 13901102 Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | GReddy / TRUST |
| Manufacturer part number | 13901102 |
| Product series | Sports Oil Filter |
| Filter model | OX-02 |
| Filter type | Spin-on engine oil filter |
| Filtration design | Double-pleated paper media |
| Mounting thread | 3/4-16 UNF |
| Filter diameter | 74mm |
| Filter height | 85mm |
| Base outside diameter | 78mm |
| Gasket inside diameter | 63mm |
| Gasket outside diameter | 71mm |
| Filter wrench | 14-flute, approximately 72.4mm |
| Manufacturer-listed engines | Toyota 1JZ, 2JZ, 1G; selected Mazda SH |
| Quantity | One oil filter |
GReddy OX-02 Vehicle Fitment
GReddy officially identifies the Toyota 1JZ, 2JZ, and 1G engine families as applications for the OX-02.
These engines appear in several popular Toyota and Lexus vehicles.
Common U.S.-Market Applications
| Years | Make | Model | Engine |
|---|---|---|---|
| 1993–1998 | Toyota | Supra | 3.0L 2JZ-GE / 2JZ-GTE |
| 1992–2000 | Lexus | SC300 | 3.0L 2JZ-GE |
| 1993–2005 | Lexus | GS300 | 3.0L 2JZ-GE |
| 2001–2005 | Lexus | IS300 | 3.0L 2JZ-GE |
Japanese-Market Engine Applications
| Approximate years | Make | Model | Engine family |
|---|---|---|---|
| 1988–2000 | Toyota | Soarer | Selected 1G, 1JZ and 2JZ variants |
| 1992–2001 | Toyota | Mark II | Selected 1JZ and 2JZ variants |
| 1992–2001 | Toyota | Chaser | Selected 1JZ and 2JZ variants |
| 1992–2001 | Toyota | Cresta | Selected 1JZ and 2JZ variants |
| 1991–2004 | Toyota | Crown | Selected 1JZ and 2JZ variants |
| 1993–2002 | Toyota | Supra JZA80 | 2JZ-GE / 2JZ-GTE |
Fitment note: These are engine-family applications, not a guarantee that every year and trim uses the same oil filter. Confirm the existing filter’s thread, gasket dimensions, and available clearance before ordering, especially on engine-swapped vehicles.
Why Double-Pleated Oil Filtration Matters
Engine oil circulates through critical moving components, collecting contamination as the engine operates.
Metallic wear particles, combustion byproducts, carbon deposits, and airborne debris can accumulate in the lubrication system.
The oil filter helps capture suspended contaminants before they continue circulating through the engine.
GReddy’s double-pleated paper media is designed to increase filtration surface area within the filter housing.
This provides more available media for contaminant collection while maintaining a compact spin-on configuration.
The OX-02 is intended to support clean oil circulation in compatible engines, but GReddy does not publish a verified micron rating or filtration efficiency percentage in its standard product description.
GReddy OX-02 for Toyota 2JZ-GE and 2JZ-GTE Engines
The Toyota 2JZ engine family remains one of the most popular platforms for naturally aspirated and turbocharged performance builds.
The 2JZ-GE powers vehicles such as the Lexus IS300, GS300, SC300, and naturally aspirated Supra, while the 2JZ-GTE is best known for its use in the turbocharged Toyota Supra.
Although these engines have different induction systems and performance characteristics, both depend on proper lubrication and regular oil filtration.
The GReddy OX-02 is designed for compatible 2JZ applications using its 3/4-16 UNF mounting configuration.
For enthusiasts building a turbocharged 2JZ, our Complete Street Turbo Build Guide explains why engine health, oil pressure, cooling, and routine maintenance should be addressed before increasing boost.
A performance oil filter is part of that maintenance strategy, but it does not replace correct oil viscosity, proper oil pressure, or regular servicing.
GReddy OX-02 for Toyota 1JZ-GTE Engines
The Toyota 1JZ-GTE is another highly regarded turbocharged inline-six engine.
Popular in the Toyota Chaser, Mark II, Cresta, and Soarer, the 1JZ remains a favorite for drift builds and Japanese performance conversions.
The GReddy OX-02 is listed for the 1JZ engine family and offers a compatible filter option where the mounting and sealing specifications match.
For engine-swapped vehicles, always verify the oil filter mounting arrangement, particularly if a custom oil cooler or remote filter relocation system has been installed.
Does a GReddy Sports Oil Filter Extend Oil Life?
GReddy describes its double-pleated filtration design as providing increased filtration surface and longer filter service life.
However, improved filtration does not automatically mean the engine oil itself can be used beyond the manufacturer’s recommended service interval.
Engine oil gradually experiences oxidation, additive depletion, fuel dilution, and contamination that an oil filter cannot completely reverse.
For more information, read our Is Synthetic Oil Better? What Your Engine Needs, which explains how oil formulation, viscosity, and operating conditions affect engine protection.
For modified 1JZ and 2JZ engines, follow an oil maintenance schedule appropriate for the engine’s use and operating conditions.
Choosing the Correct GReddy OX Oil Filter
GReddy offers several Sports OX filter models with different mounting threads and dimensions.
| Filter model | Part number | Thread | Main engine applications |
|---|---|---|---|
| OX-01 | 13901101 | 3/4-16 UNF | Toyota 4A-G / 3S-G, Nissan S13 SR |
| OX-02 | 13901102 | 3/4-16 UNF | Toyota 1JZ / 2JZ / 1G |
| OX-03 | 13901103 | 3/4-16 UNF | Toyota 4A-G / 3S-G, Nissan RB |
| OX-04 | 13901104 | M20×1.5 | Selected Subaru, Nissan, Mazda and Honda engines |
Even when two filters use the same mounting thread, their gasket diameters, filter dimensions, and internal specifications may differ.
Do not substitute another GReddy OX filter based on thread size alone.
Oil Filter Installation Tips
Before installing the GReddy OX-02, confirm the engine’s oil filter specifications.
Remove the existing filter and make sure the old gasket has not remained attached to the mounting surface.
Inspect the replacement filter for shipping damage.
Lubricate the new filter gasket with clean engine oil if directed by the installation instructions.
Thread the filter on by hand and tighten according to the manufacturer’s specifications.
After completing the oil change, start the engine and verify that oil pressure develops normally.
Inspect the filter and surrounding area for leaks, then recheck the engine oil level.
Frequently Asked Questions
What is GReddy 13901102?
It is the GReddy OX-02 Sports Oil Filter designed for compatible Toyota 1JZ, 2JZ, and 1G engines.
Does it fit the Toyota Supra 2JZ-GTE?
The 2JZ-GTE engine family is listed by GReddy. Verify the filter mounting configuration for the specific vehicle.
Does it fit the Lexus IS300?
The 2001–2005 Lexus IS300 uses a 2JZ-GE engine, making it an OX-02 application candidate. Confirm filter specifications before installation.
Does it fit the Lexus GS300?
GReddy lists the 2JZ engine family, including compatible 2JZ-GE applications. Check the specific model year and filter requirements.
Does it fit the Toyota Chaser JZX100?
The 1JZ engine family is listed by GReddy, making compatible JZX100 applications candidates for this filter.
What thread size does the OX-02 use?
3/4-16 UNF.
What are the GReddy OX-02 dimensions?
The filter measures approximately 74mm in diameter and 85mm in height.
Does it contain a magnetic filter element?
The supplied description mentions magnetic particle collection, but GReddy’s current manufacturer description confirms double-pleated filtration media rather than a separately specified internal magnet. Do not advertise a magnetic element without further confirmation.
Will this oil filter increase horsepower?
No. It is an engine maintenance component designed for oil filtration.
Can I extend my oil-change interval?
Do not extend the vehicle’s recommended oil-change interval based solely on installing this filter.
Maintain Your Toyota JZ Engine With Genuine GReddy Filtration
The GReddy 13901102 OX-02 Sports Oil Filter combines double-pleated filtration technology with a 3/4-16 UNF mounting thread and a filter configuration developed for Toyota 1JZ, 2JZ, and 1G engine applications.
Whether you’re maintaining a factory 2JZ-GE Lexus, a turbocharged Supra, or a modified 1JZ-powered Toyota, proper oil filtration is essential for long-term engine reliability.
Choose the GReddy OX-02 for your next oil service when your engine requires its specific thread, gasket, and filter dimensions.
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