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Protect an OS Giken mechanical limited-slip differential with the viscosity and friction behavior specified for its multi-plate clutch pack. Match OS Giken part OS011-KA1 by complete vehicle application and every transmission, differential, release, spline, plate, fluid, and companion-part requirement before ordering.
Fitment
| Fitment Basis | Universal only by exact gear oils specification and interface |
|---|---|
| Required Verification | Confirm viscosity or every housing, spline, tooth-count, bearing, clutch, gearbox, and dimensional requirement |
Searchable fitment is limited to year, make, and model. Chassis, engine, transmission, differential, spline, trim, and release-system requirements remain application notes.
Specifications
| Brand | OS Giken |
|---|---|
| Manufacturer Part Number | OS011-KA1 |
| Product Type | Gear Oils |
| Fitment Type | Universal |
| Viscosity | 80W-250 |
| Container Size | 1L |
| Condition | New |
What's Included
One new OS Giken product in the exact configuration and package quantity identified by part OS011-KA1. Bearings, seals, fluids, flywheel, clutch, release components, alteration kits, tools, fasteners, and other companion parts are included only when expressly stated.
About OS Giken
OS Giken designs and manufactures performance clutches, limited-slip differentials, drivetrain components, gear oil, and precision service tools in Japan. Exact transmission, differential, spline, and release-system matching is essential.
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Frequently Asked Questions
How do I confirm OS Giken OS011-KA1 fits my setup?
Match the exact fluid specification or every housing, spline, tooth-count, bearing, clutch, gearbox, and dimensional requirement. Universal does not mean every drivetrain.
Is OS Giken OS011-KA1 intended for every transmission and differential?
No. Use it only where the stated 80W-250 viscosity and OS Giken friction requirements are approved. Confirm capacity, service interval, and component instructions.
How do I set the fluid level after filling OS Giken OS011-KA1?
Follow the vehicle or differential service procedure at the specified temperature and vehicle attitude. Use new seals where required, torque the plugs, and check for leaks after operation.
Installation Instructions
Follow the current OS Giken instructions for part OS011-KA1 and the vehicle service manual. Support the vehicle safely, verify every mating interface before assembly, use new seals and specified hardware where required, apply the correct lubricant and torque values, measure all required clearances and adjustments, then complete the prescribed break-in and post-installation inspection.
OS Giken
Shop OS Giken limited-slip differentials, multi-plate clutches, release components, precision alignment tools, differential covers, and OS-250R V2 gear oil by exact manufacturer part number. Confirm every vehicle, chassis, engine, transmission, differential housing, spline, release-system, fluid, and companion-part requirement before ordering.OS Giken Product Families Super Lock clutch-type limited-slip differentials Single, twin, and triple-plate performance clutch systems Release sleeves, CSC components, movement alteration kits, and clutch alignment tools Expanded-capacity differential covers and OS-250R V2 gear oil Choosing the Correct OS Giken ProductMatch the exact manufacturer part number first. Year, make, and model alone do not confirm a drivetrain component because chassis, engine, transmission, differential housing, axle or input spline, final drive, clutch series, and release system can vary within the same model.About OS GikenOS Giken designs and manufactures performanc...
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