Permatex Engine Assembly Lube - 4 OZ

Permatex engine assembly lube is a specialized lubricant for V-twin motorcycle engines, applied to bearing surfaces and metal mating surfaces before initial start-up of new or rebuilt motors. It adheres to components to prevent scuffing and galling during the critical break-in period.

Features

• Lubricates bearing and metal mating surfaces pre-startup
• Prevents scuffing and galling on initial start-up
• Meets or exceeds OEM performance specifications
• Works on new and rebuilt V-twin engines

Specifications

• Brand: Permatex
• Manufacturer Part #: 81950
• Size: 4 oz
• Weight: 0.586 lbs

Fitment

For V-twin motorcycles, including Harley-Davidson and Indian Motorcycle engines.

Frequently Asked Questions

When do I apply engine assembly lube?

Apply to bearing journals, cam lobes, valve lifter faces, and all metal mating surfaces before assembling a new or rebuilt engine, prior to first start-up.

Will this work on my stock Harley engine rebuild?

Yes — this Permatex formulation meets OEM specs for Harley-Davidson and Indian Motorcycle V-twin assembly.

How much do I need for a complete engine assembly?

One 4 oz tube is typically sufficient for a single V-twin engine rebuild. Use sparingly — a thin coat on each surface is all that's needed.

Can I use this on Twin Cam and Milwaukee-Eight engines?

Yes — this assembly lube works on all V-twin Harley engines, including Twin Cam and M8 platforms.