Klotz Synthetic Straight Weight Lubricant 50W 1-Quart - Harley Pre-Evolution
About Klotz
Klotz parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Klotz item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
Klotz Synthetic Straight Weight 50W lubricant is a genuine synthetic oil specifically formulated for Harley-Davidson pre-Evolution engines and other classic V-twin motorcycles. This API-SH/CG-4 certified oil meets OEM warranty requirements, working to reduce friction and engine temperature for improved performance and longevity.
Why riders pick this
- API-SH/CG-4 certified and warranty compliant
- Custom formulated for Harley pre-Evolution engines
- Reduces friction for improved power delivery
- High temperature film strength and anti-wear protection
- Helps reduce engine temperature and detonation
For riders of classic Harley-Davidson motorcycles, maintaining the original engine design requires specialized lubrication. Klotz Synthetic Straight Weight 50W lubricant provides the specific protection needed for pre-Evolution V-twins, ensuring these iconic engines continue to perform reliably. This straight weight oil is engineered to handle the unique demands of older V-twin designs, offering superior film strength under high operating temperatures.
Optimized for Classic V-Twins
- API-SH/CG-4 certified for performance and warranty compliance
- Custom formulated for Harley-Davidson pre-Evolution engines
- Reduces friction for improved power delivery and efficiency
- Provides high temperature film strength and anti-wear protection
- Helps reduce engine temperature and detonation
Preserve Your Vintage Ride
Choosing the correct lubricant is paramount for preserving the integrity and performance of your pre-Evolution Harley. Klotz Synthetic Straight Weight 50W oil is designed to minimize wear and tear, extend engine life, and maintain consistent performance. By reducing friction and detonation, it helps ensure that your classic V-twin continues to deliver the power and reliability you expect, ride after ride.
Specifications
- Brand: Klotz
- Manufacturer Part #: KH-50
- UPC: 028175015506
- Viscosity: 50w straight weight
- Quantity: 1 quart
- Package Dimensions: 8 in × 4 in × 2 in
- Weight: 1.94 lbs
Common questions
Is this oil certified for Harley-Davidson warranty coverage?
Yes, this Klotz lubricant meets API-SH/CG-4 service specifications and is warranty compliant for qualifying Harley-Davidson pre-Evolution engines.
Can I use this 50W oil in my Evolution or Twin Cam Harley?
This oil is custom formulated for pre-Evolution engines. For Evolution or Twin Cam models, please consult your owner's manual for recommended oil specifications or check our other Klotz V-twin lubricants.
What are the benefits of a straight weight lubricant for older engines?
Straight weight oils, like this 50W, are often preferred for older engines with wider tolerances as they provide a consistent viscosity at high operating temperatures, offering robust film strength and protection against wear and heat.
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 | Klotz |
| TYPE | Chemicals |
| SKU | 842-0055 |
| WEIGHT | 1.94 lb |
