500 Carburetor Compatible with Polaris Sportsman 500 - Reliable

In this review of the 500 carburetor compatible with Polaris Sportsman 500 and several related models, the bottom line is straightforward: this is a budget-friendly replacement that restores engine performance for owners who need a direct-fit carburetor and a basic air and fuel filter kit. The reviewer found it best for riders needing a straightforward swap to fix poor idling or fuel delivery, and notes the included PL-1003 air filter and assembly accessories make installation easier for a competent home mechanic.

Key Features

• Wide compatibility: Designed to replace many Polaris part numbers and fit Sportsman 500, Scrambler 500, Trail Boss 325 and similar models to simplify sourcing one replacement unit.
• Complete kit: Ships with a PL-1003 air filter, a fuel filter and assembly accessories so the carburetor can be installed with fewer trips to a parts store.
• Clear port sizing: Measured inlet and outlet diameters are provided, which helps confirm fitment with air box and intake boots before purchase.
• Heavy-duty construction: Built from sturdy materials intended to withstand regular off-road use and deliver consistent engine performance.
• High performance focus: Intended to improve throttle response and prevent rough running caused by a worn or clogged original carburetor.

Who It's For

This carburetor is best for owners of Polaris Sportsman 500 models from the early 2000s and later compatible Scrambler and Trail Boss machines who need a cost-effective replacement and are comfortable performing a carb swap. The included filter and accessories make it a practical option for DIY mechanics who want a single purchase to address fuel delivery and air filtration together.

It is less suitable for riders who require OEM genuine parts with factory warranty backing or those who demand a fully precision-tuned, race-level carburetor; professionals who need guaranteed perfect fitment in every chassis variation may prefer sourcing a factory remanufactured unit.

Pros & Cons

Pros

• Direct replacement for many Polaris part numbers, simplifying compatibility checks.
• Comes with a PL-1003 air filter and fuel filter, reducing the need for extra parts purchases.
• Adjustment capability allows minor idle and mixture tuning for smoother running.
• Sturdy build aimed at restoring reliable engine performance.

Cons

• Some buyers reported occasional fit and quality variation, so minor adjustments may be required on installation.
• There are reports of gas leakage from the overflow in a few units, so careful inspection and proper installation are important.

Specifications

Compatible models	Sportsman 500, Scrambler 500, Trail Boss 325 and similar models listed
Replacement part numbers	Replaces numerous Polaris numbers including 3131557, 3131453, 3131289 and others
Intake side inner diameter	40mm (1.57 in)
Intake side outer diameter	45mm (1.77 in)
Air filter side inner diameter	55mm (2.17 in)
Air filter side outer diameter	58mm (2.28 in)
Package contents	1 carburetor, 1 PL-1003 air filter, 1 fuel filter, assembly accessories

Our Verdict

The 500 carburetor compatible with Polaris Sportsman 500 is a practical, cost-effective replacement for owners willing to do a modest amount of setup and tuning. It represents good value for DIY mechanics who need a complete kit to restore engine smoothness, but buyers should inspect for leaks during installation and be prepared for minor fit adjustments in some chassis variations.

Frequently Asked Questions

Will this carburetor fit my Sportsman 500?
It fits many Sportsman 500 and Scrambler models from the years listed; verify your original part number against the replacement numbers provided to confirm fit.

What is included in the package?
The kit includes the carburetor, a PL-1003 air filter, a fuel filter and assembly accessories as shown in the main product image.

Are there common installation issues?
Some users needed minor idle adjustment and a few reported overflow leakage, so check seals and fuel connections and perform a leak test after installation.