PC Racing FLO PCS4C Reusable Spin-On Oil Filter for Harley Touring – High-Flow Stainless

Overview

Introducing the PC Racing FLO PCS4C, a premium reusable spin-on oil filter designed for riders who demand dependability and performance. Crafted from laser-cut, medical-grade 304 stainless steel and a micronic filter cloth, this filter delivers up to 200% more filter area in many scenarios, helping oil operate with greater ease across demanding rides. The stainless mesh captures finer particles, down to 35 microns, providing a high level of filtration without sacrificing flow.

The pleat seam is welded rather than glued, giving the filter the resilience to withstand up to 600 degrees. That robustness translates to consistent oil flow under extreme heat, when water contamination is present, or during cold starts, reducing the chance of bypass-related unfiltered oil reaching the engine. This advanced filtration technology has a pedigree in racing and aerospace, where dependable filtration is a core requirement.

Key benefits

• Up to 200% more filter area compared to typical filters, improving filtration capacity.
• Filtration down to 35 microns with a stainless mesh for durable performance.
• Welded pleat seams withstand high temperatures, preserving integrity during intense riding conditions.
• Built-in bypass valve maintains oil flow, even when conditions are tough.
• Magnetic prefilter helps capture metallic particles, supporting engine longevity.
• Reusable and easy to clean, reducing waste and saving money over time.

Real-world use and care

• Designed as a direct replacement for many OEM spin-on filters on Harley-Davidson Touring models with Twin Cam and Milwaukee-Eight engines (1999–2025).
• Also compatible with a broad range of motorcycles beyond Harley, offering a versatile filtration upgrade for riders who value reliability.
• Care is simple: remove, rinse with solvent or degreaser, dry, and reinstall. Lubricate rubber parts with clean oil before reassembly.
• Eco-conscious design helps reduce waste by enabling repeated use, rather than disposable filters that end up in landfills.

Fitting a wide variety of motorcycles, the FLO PCS4C blends premium aesthetics with practical engineering: CNC-machined aluminum housing with polished fins complements Harley-Davidson styling while delivering robust heat dissipation. For riders who want stronger oil flow, cooler operation, and long-term dependability, this filter offers a compelling set of possibilities without promising guaranteed results.