PC Racing Reusable Aluminum Spin-On Oil Filter FLO PCS4C for Harley Twin Cam — 35µm Stainless Micronic, CNC Housing

PC Racing FLO PCS4C is a reusable, high-flow aluminum spin-on oil filter engineered to replace disposable paper cartridges on many Harley-Davidson and other motorcycle models.

This precision-machined filter uses medical-grade 304 stainless steel micronic cloth to provide far more filtering area and finer particle capture than standard paper elements. Built for repeated cleaning and long service life, the FLO PCS4C resists heat, water and cold starts that can compromise paper filters, while its aluminum housing adds durability and an OEM-plus appearance.

How does this filter improve oil flow and filtration?

The FLO PCS4C combines a laser-cut stainless micronic mesh with a large surface area to deliver steady oil flow while trapping contaminants down to about 35 microns. That’s roughly three times finer than many quality paper filters, helping preserve engine passages without restricting circulation under stress.

• 304 stainless steel micronic cloth captures particles down to 35 microns
• Up to 200% more filter area in many applications for consistent flow
• Maintains flow in extreme heat, presence of water, and cold starts

What makes the construction more durable than disposable filters?

Instead of glued paper pleats, the FLO element uses welded seams and stainless mesh that tolerate higher temperatures and repeated cleaning cycles. The spin-on housing is CNC-machined from aluminum, offering strength, corrosion resistance and heat dissipation while presenting a refined look that complements Harley styling.

• Welded pleat seams withstand elevated temperatures up to 600°F
• CNC-machined aluminum housing with polished fins for strength and cooling
• Integrated bypass and magnetic prefilter to protect against metallic debris

How do you clean and maintain this reusable filter?

Cleaning is straightforward at each oil change: note orientation, degrease with solvent or dish soap, blow air from the inside out, and re-lube rubber seals before reinstalling. Because the element is stainless and welded, it tolerates routine solvent exposure and repeated cycles without degrading like paper media.

• Use solvent, kerosene, contact cleaner or dish soap to remove oil and debris
• Blow air through the element from inside out to clear trapped particles
• Apply clean oil to rubber components before reinstalling the filter

Which motorcycles does this PC Racing filter fit?

The FLO PCS4C fits a broad range of Harley-Davidson Twin Cam and earlier Evo models, several Buell and Aprilia motorcycles, BMW street and adventure models, Moto Guzzi variants and specific sport bikes listed by year. Always verify fitment against your make, model and year before ordering.

• Covers Harley Twin Cam, Evo and select Milwaukee-Eight model years listed by OEM spec
• Compatible with Buell, Aprilia, BMW and Moto Guzzi models noted in product fitment
• Direct spin-on replacement that matches OEM mounting and bypass requirements

Who is this for? The PC Racing FLO PCS4C is aimed at riders who want a durable, serviceable oil filter that reduces waste while improving filtration and oil flow. It’s a strong choice for touring riders, performance-minded motorcyclists and anyone who prefers reusable components backed by racing-proven filtration technology. Confirm compatibility with your motorcycle model and follow routine cleaning at oil changes to maximize longevity and protection.