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21301 Max Gear High Performance Gear Oil 75W-140, 1 qt
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ROYAL PURPLEPART NUMBER: 831-21301

21301 Max Gear High Performance Gear Oil 75W-140, 1 qt

$1889$20.99You Save$2.10
ShippingShips on Sep 04, 2026
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Max Gear Oil Quart
Gear Oil
  • 75W-140 Viscosity
  • 1-Quart
  • For Differentials and Manual Transmissions
  • Limited-Slip Compatible
  • Synerlec Additive

    This high performance gear oil is formulated to provide maximum protection for heavily loaded gears in automotive and truck applications. Designed with advanced synthetic technology, it helps reduce friction, improve cold weather performance, and extend component life under extreme operating conditions.

    Royal Purple 21301 Max Gear Oil Features:

    • 75W-140 viscosity grade
    • Formulated for differentials, rear axles, and manual transmissions
    • Compatible with open, limited-slip, and locking differentials
    • Contains limited-slip friction modifier
    • Synerlec additive technology for enhanced film strength
    • Reduces friction and operating temperature
    • Helps extend gear and bearing life
    • Improves cold weather fluidity
    • Non-corrosive to ferrous and nonferrous metals
    • Provides corrosion protection and water separation
  • Royal Purple Max Gear Oil
    Royal Purple Synthetic Max Gear Oil is ultra-tough, high performance gear oil that provides maximum protection, eliminates wear and reduces friction for heavily loaded gears under severe conditions. It is recommended for use in car, truck and SUV front or rear differentials, manual transmissions and lower gear units of marine engines that specify the use of an API GL-4 or GL-5 fluid. Max Gear is non-corrosive to soft yellow metals (brass, bronze, copper, etc.) and is also transmission synchronizer safe. Max Gear also outperforms competing conventional and synthetic gear oils by using Royal Purple's proprietary Synerlec® additive and the highest quality synthetic oils. Contains anti-slip additives for posi/anti-slip differentials.

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    Features

    • Maximizes horsepower
    • Extends gear and bearing life
    • Reduces operating temperature
    • Severe service performance
    • Lower coefficient of friction
    • Superior corrosion protection
    • Separates rapidly from water
    • Meets warranty requirements
    • Environmentally responsible
    • Formulated for limited-slip differential use

      JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Part TypeOil
    Product LineRoyal Purple Synthetic Max Gear Oil
    BrandROYAL PURPLE
    Package Height3.3
    Package Width3.3
    Package Length11.38
    Weight2.0 PG
    Part CategoryAccessories
    Limited Slip AdditiveYes
    Oil Weight75W140
    QuantitySold individually
    Gear Lube Volume (Qt.)1
    Part FitmentUniversal
    Vendor Part Number21301
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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