Harddrive HD Oil Filters - Filter TC BLK W/NUT 171bn OE 63731-99 — Harley-Davidson Road King, Softail Fat Boy, Softail Heritage Classic (1982-2020)

Harddrive HD oil filter with full synthetic media and M-Pleat design for V-twin motorcycles. Captures finer particles, resists chemical breakdown, and reduces pressure drop compared to standard filters.

Features

• Full synthetic media captures finer particles
• M-Pleat zigzag design increases filtration area and dust capacity
• Louvered baffle screen forces oil across media for better filtration
• Resin-reinforced media resists pressure and heat
• Pre-lubricated gasket with shrink-wrap protection
• Forming tapped threads for clean installation
• Fluted design for hand or tool grip

Specifications

• Brand: Harddrive
• Manufacturer Part #: PS171BNHD
• UPC: 191361260575
• Dimensions: 3.07 in W × 3.07 in D × 4.13 in H
• Weight: 0.8 lbs
• Country of Origin: Thailand

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models. Verify your bike's filter thread size and OE part number before ordering.

Frequently Asked Questions

What makes full synthetic media better than standard paper?

Synthetic media captures finer particles, resists chemical breakdown, and lasts longer without aging prematurely under heat and pressure.

How often should I change this filter?

Follow your motorcycle manufacturer's recommended service interval — typically every 5,000 to 10,000 miles depending on riding conditions.

Is the gasket pre-lubricated?

Yes — the gasket comes pre-lubricated and covered with shrink film to stay contamination-free until installation.

Do I need any special tools to install it?

No — the fluted design allows hand or tool grip for easy installation and removal without special equipment.

Will this fit my Harley or Indian motorcycle?

This filter fits most V-twin models. Verify your bike's OE part number (often 63731-99 equivalent) to confirm compatibility before purchasing.