BEL-RAY SKU: 840-1580

Bel-Ray V-Twin Synthetic Engine Oil - Full SYN Engine OIL 4t 10w50 6gal BIB

$385.95
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NOT SURE ABOUT FITMENT?

Bel-Ray V-Twin Synthetic 10W50 is a full-synthetic engine oil formulated for V-twin motorcycles, providing superior film strength and thermal stability for high-performance riding. This 6-gallon bulk container (BIB) is trusted by Harley-Davidson and Indian Motorcycle owners across North America.

Features

  • 100% synthetic base oils
  • Superior film strength for increased component protection
  • Highest viscosity index for stable performance in high temperatures
  • Exceptional shear stability reduces viscosity loss
  • Reduced friction decreases engine operating temperatures
  • API SN and JASO MA2 certified

Specifications

  • Brand: Bel-Ray
  • Manufacturer Part #: 301390150033
  • UPC: 690509408515
  • Viscosity Grade: 10W50
  • Type: 100% Synthetic
  • Quantity: 6 gallons (BIB)
  • Weight: 45 lbs
  • Dimensions: 18 in L x 7 in W x 13 in H

Fitment

Formulated for V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Is this oil suitable for both Harley and Indian motorcycles?

Yes — Bel-Ray V-Twin Synthetic is formulated to meet the needs of all V-twin motorcycle engines, including both Harley-Davidson and Indian models.

What do the API SN and JASO MA2 ratings mean?

API SN is the latest gasoline engine oil standard. JASO MA2 is the Japanese motorcycle oil standard, ensuring compatibility with wet-clutch systems in both brands.

Why choose 10W50 over other weights?

10W50 provides the viscosity stability needed for high-performance V-twin engines in varied riding conditions, balancing cold-start flow with high-temperature protection.

Is a 6-gallon BIB more economical than bottles?

Yes — bulk containers reduce per-quart cost and packaging waste, making BIB ideal for multi-bike owners or shops doing regular oil changes.

How often should I change this oil?

Follow your manufacturer's recommended service interval — typically every 5,000 miles for synthetic oil in V-twin engines. Check your owner's manual for exact specifications.

BRANDBel-Ray
TYPEChemicals
SKU840-1580
WEIGHT45.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
5★ 4
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jun 8, 2015

Great Oil

Can tell how smooth the bike shifts using this oil

— JGDJR J
✓ VERIFIED
Oct 25, 2021

So Far So Good

Has been run 1,000 miles in my 2016 Ninja 650 ABS with no issues.

— INDY C
✓ VERIFIED
Aug 6, 2020

A+

Good stuff, I guess. Hard to say I notice a difference but I'm sure it helps having the Ester. Good quality oil.

— David R
✓ VERIFIED
Jul 25, 2012

Good oil! Put it in my last two harleys ....

— Anonymous