MAXIMA SKU: 78-99063

Maxima Synthetic Gear Oil 75W140 5 Gallon - Harley & Indian V-Twin

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About Maxima

Maxima Racing Oils has blended lubricants in California since 1979 and supplies factory race teams across powersports. Its V-twin oils are formulated for the shared-sump and air-cooled realities of American engines.

Maxima Synthetic Gear Oil 75W140 is a full synthetic lubricant specifically formulated for the high-stress environments of V-twin motorcycle transmissions and final drives. This 5-gallon container provides ample supply for shops or frequent maintenance, ensuring superior protection and performance.

Why riders pick this

  • 5-gallon container for bulk supply
  • Full synthetic 75W140 gear oil
  • Superior wear and pitting protection
  • Shear-stable for consistent shifting
  • Exceeds API GL-5 specifications

For serious V-twin owners and service shops, the 5-gallon container of Maxima Synthetic Gear Oil 75W140 offers convenience and value. This premium lubricant is engineered to exceed API GL-5 specifications, delivering exceptional wear and pitting protection for Harley-Davidson and Indian Motorcycle drivetrains. Its advanced, shear-stable chemistry ensures that viscosity is maintained, providing smooth, consistent shifting and long-term component durability.

Bulk Supply for Peak Performance

  • Full synthetic 75W140 viscosity for V-twin applications
  • Superior protection against wear and pitting
  • Shear-stable formula for smooth and consistent shifting
  • Surface-active chemistry resists corrosion effectively
  • Exceeds API GL-5 specifications for broad compatibility

Optimized for Harley & Indian Drivetrains

Maxima Synthetic Gear Oil 75W140 is designed to keep your V-twin's transmission and final drive operating at their best. The advanced formulation minimizes friction and heat, contributing to extended component life and improved riding feel. Stock up with this 5-gallon supply to ensure your bikes always receive top-tier lubrication.

Specifications

  • Brand: Maxima
  • Manufacturer Part #: 40-49505
  • UPC: 851211008961
  • Viscosity: 75W140
  • Container Size: 5 gallons
  • Weight: 42 lbs
  • Dimensions: 12 in L × 12 in W × 15 in H

Common questions

Can I use this Maxima 75W140 oil in both my transmission and final drive?

Yes, Maxima Synthetic Gear Oil 75W140 is specifically formulated for use in both V-twin motorcycle transmission and final drive applications.

Does this oil meet OEM specifications for Harley-Davidson and Indian Motorcycles?

This oil exceeds API GL-5 specifications, which covers the requirements for most Harley-Davidson and Indian Motorcycle V-twin transmissions and final drives. Always consult your bike's service manual for specific fluid recommendations.

Is this a good option for high-performance V-twin engines?

Yes, its full synthetic, shear-stable formula provides excellent protection and consistent performance for high-performance V-twin motorcycles under demanding conditions.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDMaxima
TYPEChemicals
SKU78-99063
WEIGHT42.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
2 RATINGS
5★ 2
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Aug 30, 2021

Great product

— Anonymous
✓ VERIFIED
Aug 19, 2019

The price is good, delivery was also as expected. I will text ride my bike in a couple of days, this product has the specifications I need for my moto, Bmw r1200rt.

— Anonymous