Mikuni HSR 45/42 Total Carburetor Kit - 42mm KIT Twin W/Mfld — Harley-Davidson Road King, Road King Classic, Electra Glide (1999-2006)

Mikuni HSR 45/42 Total Carburetor Kit delivers high-flow carb fitment for Big Twin EVO and Twin Cam engines. The complete package includes a special intake manifold, rubber flange, and high-flow air filter rated to 100 hp with minimal restriction.

Features

• Special intake manifold for HSR 42 or 45mm carburetors
• High-flow air filter supports up to 100 horsepower
• Rubber flange included
• Breather kit included for 1993-1999 models
• Manifold clamps and seals sold separately

Specifications

• Brand: Mikuni
• Manufacturer Part #: F42-19
• Length: 16.1 in
• Width: 8.7 in
• Height: 5.8 in
• Weight: 8.05 lbs
• Country of Origin: Japan

Fitment

Fits Big Twin EVO and Twin Cam models. Breather kit is included for 1993-1999 models; 1984-1989 models require cables from 1990-1995 models. Manifold clamps and seals are not included.

Frequently Asked Questions

What's included in this Total Kit?

Special manifold, rubber flange, high-flow air filter, and breather kit (1993-1999 only). Clamps and seals sold separately.

Does this work with both HSR 42 and 45mm carbs?

Yes — the manifold is designed to accept either HSR 42 or HSR 45mm carburetors.

Will this fit my 1984-1989 Big Twin?

Yes, but you'll need to source cables from 1990-1995 models separately.

How much horsepower can the air filter support?

The high-flow filter is rated to support up to 100 horsepower with no restriction loss.

What do I need to buy separately?

Manifold clamps, seals, and carburetor body (if not already owned). Cables for pre-1990 models.