Harddrive HD Oil Filters - Filter TC Black 171b OE 63731-99 — Harley-Davidson Road King, Softail Fat Boy, Softail Heritage Classic (1999-2020)

Harddrive HD oil filter with full synthetic M-Pleat media for V-twin motorcycles. Engineered to capture finer particles, resist oil degradation, and outlast standard filters without premature aging.

Features

• Full synthetic media captures finer particles and resists chemical breakdown
• M-Pleat zigzag design increases filtration area and dust capacity
• Resin-reinforced media withstands pressure and heat
• Louvered baffle screen maximizes oil contact with filter media
• Pre-lubricated gasket sealed in shrink film to prevent contamination
• Fluted design for easy hand or tool removal and installation

Specifications

• Brand: Harddrive
• Manufacturer Part #: PS171B
• UPC: 191361260421
• Dimensions: 3.07 in (D) x 4.13 in (H)
• Weight: 0.78 lbs
• Country of Origin: Thailand

Fitment

Fits most V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models. Check your owner's manual or existing filter for compatibility with your specific year and engine size.

Frequently Asked Questions

How long does this filter last compared to standard filters?

Full synthetic media resists chemical breakdown and aging, extending service life beyond conventional filters when maintained per your motorcycle's recommended oil change intervals.

Will this fit my Harley or Indian?

This filter is compatible with most V-twin engines. Verify fitment by comparing your current filter part number or checking your owner's manual before ordering.

What does the M-Pleat design do?

The zigzag pleat pattern increases filtration surface area and dust capacity while the louvered baffle forces more oil across the media for better particle capture.

Is the gasket pre-lubricated?

Yes — the gasket comes pre-lubricated and sealed in shrink film to keep it clean until installation.

Can I remove and install this by hand?

Yes — the fluted outer design provides grip for hand removal and installation without requiring tools, though a strap wrench works if preferred.