Harley Transmission Cases and Covers

Buying Guide and FAQs

Buying Guide: Factors to Consider When Choosing Harley Bike Transmission Cases and Covers

• Compatibility: Ensure parts fit your Harley's model (e.g., Big Twins with 4-speed or 5-speed transmissions, Knuckleheads, Softail frames, rigid frames). Use the vehicle selector for year-specific matches (e.g., 1946-1984 FL/FLH, 1986-2006 Softail) to avoid mounting or fit issues.
• Type of Use: For custom builds or frame conversions, opt for transmission mounting plates; aesthetic upgrades benefit from CNC-machined covers for style in street riding; hardware like plugs suits maintenance in daily or touring conditions.
• Components and Upgrades: Select mounting plates (OE type or 5/4-speed conversion), covers (top/side, dimpled/smooth), or hardware (plugs, gears). Focus on features like heavy-duty steel, billet aluminum, CNC machining, and chrome/black finishes for enhanced durability and aesthetics.
• Brand and Quality: Choose Paughco for heavy-duty chrome plates, Covingtons for CNC billet covers, Arlen Ness for 10 Gauge machined options, Namz for stainless plugs, Gardner-Westcott for dipstick plugs, or Eastern for zinc magnetic drains/gears. Prioritize USA-made materials for corrosion resistance and longevity.
• Installation and Cost: Most parts are easy bolt-in replacements with included hardware (e.g., gaskets for covers); prices range from $12.95 for plugs to $381.95 for billet covers—factor in made-in-USA quality and free shipping over $99 for value.

Frequently Asked Questions (FAQs)

1. What Harley models do these transmission cases and covers support? Parts support Big Twins (e.g., Knuckleheads, Softail frames 1986-2006), rigid/swingarm frames, and specific years like 1946-1984 FL/FLH—use the year/make/model filter for exact compatibility.
2. How do billet covers improve aesthetics? CNC-machined from billet aluminum with dimpled/smooth styles and chrome/black finishes, they provide a custom look while being direct bolt-on replacements.
3. What is typically included with covers? Many include gaskets and hardware; mounting plates are standalone for easy installation in custom frames.
4. Are these parts suitable for 4-speed vs. 5-speed? Yes, specific plates for 4-speed OE type or 5/4-speed conversions, with covers versatile for hydraulic/mechanical transmissions.
5. What if a part doesn't fit my Harley? Verify transmission type (4/5-speed), frame (rigid/swingarm/Softail), and year before buying. Our returns policy allows exchanges or refunds if it doesn't match.
6. Can I find related drivetrain parts? Yes—explore clutches, belts, or sprockets in the Harley drivetrain category to complement your transmission upgrade for better performance.