Description
Designed for demanding drivetrain environments, Genuine Mopar SAE 75W-140 Synthetic Gear Oil (MS-8985) delivers robust protection for differentials, transfer cases, and axle assemblies that require a heavier viscosity lubricant. Its advanced synthetic formulation helps sustain performance, resist shear, and support reliable operation under towing, off-road, or high-load driving conditions where conventional gear oils can struggle.
Built for Heavy-Duty Lubrication
Thicker Viscosity for Tough Conditions: SAE 75W-140 offers enhanced film strength in high-temperature and high-stress applications, helping maintain proper lubrication where heavier oils are specified.
Premium Synthetic Base: Engineered to flow consistently while resisting thermal breakdown, oxidation, and viscosity loss over time.
MS-8985 Specification: Meets Mopar’s material and performance standards for vehicles calling for this specific gear lubricant.
Extended Wear Protection: Advanced additives help shield gear teeth, bearings, and seals from wear, pitting, and corrosion.
1-Quart Packaging: Ideal size for scheduled differential or axle fluid service.
Why This Matters
Proper gear oil plays a crucial role in the life of your drivetrain components. Under severe heat, heavy load, or frequent starts and stops, a high-viscosity synthetic lubricant like SAE 75W-140 helps preserve oil film and reduce metal-to-metal contact that can accelerate wear. Using genuine Mopar fluid helps ensure compatibility with factory materials and performance expectations.
Product Details
Part Number: 68218657AB
Viscosity: SAE 75W-140
Specification: MS-8985 Synthetic Gear & Axle Lubricant
Size: 1 Quart
Condition: New, Genuine Mopar OEM Product
Service Tip
Replace differential or axle fluid at the intervals recommended in your owner’s manual. Always confirm that SAE 75W-140 and MS-8985 specification gear oil are correct for your vehicle’s drivetrain before installation.
Compatibility Notice
Verify your vehicle’s required lubricant specification in the owner’s manual or service guide before ordering to ensure proper fit and performance.