MAXIMA SKU: 78-9900

Maxima Hypoid Synthetic 75W-90 Gear Oil - Harley & Indian V-Twin

5 (2 Reviews)| Write a Review

$34.99

Free shipping on orders $99+ · Best value guarantee

affirm From $2.91/mo with Affirm. See if you prequalify

IN STOCK — Ships within 24 hours

Free Shipping on orders $99+

Best Value Guarantee

30-Day Returns — see policy

Authorized Dealer — sourced direct

NOT SURE ABOUT FITMENT? Email us: SALES@VTWINBIKERS.COM

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 Hypoid Synthetic 75W-90 is a full synthetic, ester-based gear oil formulated for the demands of V-twin motorcycle transmissions and primary drives. This high-performance lubricant is engineered to deliver superior thermal stability and shear resistance across all operating temperatures.

Why riders pick this

Full synthetic, ester-based 75W-90 formula
Exceeds API GL-5 specifications for V-twin protection
Shear-stable to maintain viscosity and smooth shifting
Prevents corrosion and keeps gears clean
Superior thermal and oxidative stability

When you're pushing a V-twin, the transmission and primary drive take a beating. Maxima Hypoid Synthetic 75W-90 gear oil is built to stand up to that abuse, ensuring smooth shifts and long component life. Its advanced ester-based formula maintains viscosity and film strength even under extreme heat, protecting your gears from wear and corrosion.

Engineered for V-Twin Performance

Full synthetic ester-based 75W-90 formulation
Exceeds API GL-5 specifications for robust protection
Shear-stable formula maintains viscosity for smooth shifting
Surface-active chemistry prevents corrosion and keeps gears clean
Superior oxidative stability at high and low temperatures

Keep Your Drivetrain Running Strong

Using the right gear oil is crucial for the longevity and performance of your Harley-Davidson or Indian Motorcycle. Maxima Hypoid Synthetic 75W-90 provides reliable protection for your V-twin's critical drivetrain components, reducing friction and extending the life of your transmission and primary. It's an essential upgrade for any rider looking to maintain peak performance.

Specifications

Brand: Maxima
Manufacturer Part #: 44901
UPC: 851211006417
Viscosity: 75W-90
Type: Full Synthetic Ester-Based
Volume: 1 liter
Weight: 2.02 lbs
Dimensions: 5.75 in L × 2.65 in W × 9.15 in H

Common questions

What weight gear oil should I use in my V-twin transmission?

Maxima 75W-90 is a popular choice for many V-twin transmissions and primary drives. Always consult your motorcycle's owner's manual for the manufacturer's recommended viscosity for your specific model.

Is this gear oil suitable for both Harley-Davidson and Indian Motorcycle models?

Yes, Maxima Hypoid Synthetic 75W-90 gear oil is engineered for V-twin motorcycle applications, including Harley-Davidson and Indian Motorcycle models. Always confirm fitment for your specific bike.

Does this gear oil offer protection in extreme temperatures?

Yes, this full synthetic, ester-based formula is designed with superior thermal and oxidative stability to provide excellent protection across a wide range of operating temperatures, from cold starts to high-heat riding.

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.

BRAND	Maxima
TYPE	Chemicals
SKU	78-9900
WEIGHT	2.02 lb

Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.

CUSTOMER REVIEWS

2 RATINGS

5★ 2

4★ 0

3★ 0

2★ 0

1★ 0

✓ VERIFIED

Aug 30, 2021

Great product