PC Racing reusable spin-on oil filter for Harley‑Davidson — Black billet, high-flow stainless mesh & magnetic prefilter

PC Racing FLO PCS4BC is a reusable, high-flow spin-on oil filter designed to replace OEM filters on Harley-Davidson Touring and Bagger models, delivering improved oil circulation, durable filtration, and a custom black billet appearance.

Built as a direct retrofit for many Harley-Davidson Twin Cam and Milwaukee-Eight engines (1999–2025), this reusable spin-on unit combines stainless steel filtration with a CNC-machined aluminum housing. It swaps in where a disposable spin-on would sit, while offering washable mesh media, an integrated bypass, and a magnetic prefilter to help capture metallic debris. The finish and polished fins are styled to complement Harley aesthetics without compromising function.

How does this filter affect oil flow and engine performance?

The FLO PCS4BC uses precision stainless steel mesh that permits higher volume flow than typical paper media while still catching particulates. Greater flow helps maintain consistent lubrication under high RPM or heavy loads without starving passages.

• High-flow stainless mesh reduces restriction compared to paper elements.
• Engineered openings for steady circulation at elevated RPM.
• Integrated bypass maintains oil delivery if the element becomes clogged.

What maintenance does the reusable design require?

Maintenance consists of removing the element, rinsing or solvent-cleaning the stainless mesh, drying thoroughly, and reinstalling. Because it’s washable and reusable, replacements are needed far less often than single-use paper filters.

• Simple wash, dry, and reinstall process—no special tools required.
• Cleaner can be a mild degreaser or parts cleaner for stubborn residue.
• Inspect magnetic prefilter for captured metal shavings during each service.

Will it fit my Harley-Davidson model and how easy is installation?

The FLO PCS4BC is designed as a direct replacement for OEM spin-on filters on many Harley touring and bagger models from 1999–2025. Installation follows the same steps as a stock spin-on: tighten to torque spec and check for leaks after start-up.

• Compatible with Street Glide, Road Glide, Road King, and other baggers using OEM spin-on style.
• Direct-fit threading and seal replace stock unit—no adapter needed on supported models.
• CNC-machined housing includes polished fins for a plug-and-play visual upgrade.

What protective features are included to safeguard the engine?

The filter integrates a powerful magnetic prefilter to capture metallic particles and a mechanical bypass valve to guarantee oil flow if the mesh is overloaded. These features help protect critical components while allowing the higher flow rates of stainless filtration.

• Strong magnet collects ferrous debris before it circulates through the engine.
• Bypass valve prevents oil starvation under blockage or extreme conditions.
• Durable billet housing improves heat dissipation and resists deformation.

Who is this for? Riders who want a long-term upgrade from disposable filters—especially touring and bagger owners who demand improved oil flow, reduced waste, and a custom look—will benefit most. It’s ideal for those who perform regular maintenance and prefer wrench-friendly, reusable parts. For track or heavy-load riders seeking race-proven, durable filtration with visual appeal, this unit offers performance and longevity without changing engine plumbing.