Carbhub Carburetor for Honda Foreman 450 TRX450 (1998–2004) — 33mm Intake, Includes Throttle Base Cover

Carbhub's aftermarket carburetor replaces the original unit on Honda Foreman TRX450 models (1998–2004), restoring fuel delivery with an included throttle base cover and screw.

If your TRX450S / TRX450ES / TRX450FE / TRX450FM / TRX450 (1998–2004) is showing rough idling, reduced acceleration, or inconsistent throttle response, a direct-fit replacement carburetor can get it running smoothly again. This Carbhub assembly is designed to match the intake and airbox connections of Honda Foreman 450 engines, and it ships with a black throttle base cover and the mounting screw to simplify installation.

Will this carburetor fit my specific TRX450 model and year?

The Carbhub carburetor is built to suit Honda Foreman TRX450S and TRX450ES from 1998–2001, and TRX450FE and TRX450FM from 2002–2004. Check your ATV's model plate or service manual to confirm year and trim before ordering. Fitment is focused on these four model/year combinations to ensure proper mating and performance.

• Compatible models: TRX450S, TRX450ES (1998–2001)
• Compatible models: TRX450FE, TRX450FM (2002–2004)
• Designed to match OEM mounting points and throttle linkage

What are the carburetor’s dimensions and connection sizes?

Knowing the intake and air filter bore sizes helps verify the carburetor will couple correctly to your existing hoses and airbox. This unit provides a 33 mm internal intake diameter and a 50 mm internal air filter side diameter, with matching outer diameters for clamping and boot fitment.

• Intake side inner diameter: 33 mm, outer diameter: 39 mm
• Air filter side inner diameter: 50 mm, outer diameter: 54 mm
• Measured to align with common TRX450 intake boots and filter housings

What comes in the package and how does it simplify installation?

The carburetor ships as a ready assembly with the main replacement body plus two small but essential accessories to complete the install. Including the black throttle base cover and the dedicated screw reduces the chance of missing parts and helps ensure a sealed throttle area.

• 1 x complete Carbhub carburetor assembly
• 1 x black throttle base cover for protection and sealing
• 1 x throttle base cover screw for immediate mounting

How will installing this carb help my ATV’s performance?

Replacing an old or damaged carburetor can resolve fuel delivery issues that cause stalling, hard starts, or sluggish throttle response. While results depend on engine condition and tuning, a correctly sized replacement restores consistent airflow and fuel metering to the engine.

• Improves throttle response when matched and adjusted properly
• Helps eliminate vacuum leaks with correct boot fitment
• Replaces worn throttle base components to maintain sealing

Who is this for: This Carbhub carburetor is aimed at owners and DIY mechanics of Honda Foreman TRX450 ATVs (1998–2004) who need an aftermarket replacement that closely matches OEM connection sizes. It's suitable for riders repairing a broken carb, restoring rideability, or replacing a heavily worn unit during routine maintenance. If you need exact OEM factory parts, consult your dealer; for a practical, ready-to-install aftermarket option with included throttle base cover and mounting screw, this Carbhub unit is a straightforward choice.