OLIFANT Carburetor for Honda FourTrax Foreman 450 TRX450ES/TRX450S 1998-2001 — 32mm Intake, Complete Kit

OLIFANT replacement carburetor engineered to restore smooth throttle response and reliable fuel delivery for Honda FourTrax Foreman 450 TRX450ES/TRX450S models from 1998–2001.

This aftermarket carburetor kit is a complete drop-in option designed to match the fit and function of the original OEM part numbers 16100-HN0-A02 and 16100-HN0-A00. Supplied with essential accessories—fuel filter, air filter, throttle base cover and a base cover screw kit—the assembly includes measurements for both intake and air-filter sides so you can confirm compatibility before installation. The body dimensions and mounting pattern mirror the factory design to simplify replacement on the 450cc FourTrax Foreman family.

Will this carburetor fit my 1998–2001 Honda FourTrax Foreman 450?

Yes — this unit is made specifically for TRX450ES and TRX450S Foreman 450 models produced between 1998 and 2001. Verify your bike’s part numbers and intake dimensions to be certain of fit.

• Compatible models: Honda FourTrax Foreman 450 TRX450ES and TRX450S (1998–2001)
• OEM cross-reference: 16100-HN0-A02, 16100-HN0-A00
• Intake inner diameter: 32mm; intake outer: 40mm
• Air-filter side inner diameter: 50mm; outer diameter: 54mm

What comes in the package and why it matters?

The kit is supplied as a ready-to-install package so you receive everything necessary for a straightforward swap and initial startup. The included small parts reduce the chance of missing items that commonly delay repairs.

• 1 x carburetor body preassembled with jets and throttle mechanism
• 1 x fuel filter to help prevent debris entering the carb
• 1 x air filter to ensure proper airflow and filtration at the intake side
• 1 x throttle base cover and a base cover screw kit for secure mounting

How should I install and tune this replacement carburetor?

Installation follows standard carburetor replacement steps: drain fuel, disconnect linkages, swap the unit and tighten mounting points. After installation, check for leaks, ensure throttle returns smoothly and perform a basic idle/mixture adjustment to match your altitude and fuel quality.

• Tools: basic hand tools (screwdrivers, socket set), fuel line pliers
• Initial checks: vacuum/leak inspection and secure mounting bolts
• Tuning: adjust idle screw and mixture per service manual recommendations
• Test ride: warm up engine, test throttle response across RPM range

What are the key specs and materials to know?

The component dimensions and included filters are listed so you can confirm clearance and connection sizes before purchasing. The construction is intended to be a practical, serviceable replacement rather than an OEM-branded unit.

• Intake side inner diameter: 32mm; outer diameter: 40mm
• Air-filter side inner diameter: 50mm; outer diameter: 54mm
• Materials: die-cast carburetor body with standard rubber and brass fittings
• Package includes replacement filters and mounting hardware

Who is this for: This OLIFANT carburetor kit is aimed at owners and mechanics of older Honda FourTrax Foreman 450 ATVs (1998–2001) who need a complete, economical replacement to restore predictable fueling and throttle control. It is well suited for DIY enthusiasts who can perform basic carburetor swaps and post-install tuning, as well as shops that want a stocked replacement option matching common OEM part numbers.