Brake Caliper Piston Front Kawasaki KVF 360 400 KVF300 4x4 99-02 KVF360 4x4 03-12 KVF400 4x4 97-02

Restore confident stopping power on Kawasaki KVF Prairie 300/360/400 four-wheelers with this front brake caliper piston. This essential hydraulic component fits KVF300/4x4 (1999-2002), KVF360/4x4 (2003-2013), and KVF400/4x4 (1997-2002), replacing the OEM piston 43020-1114. Replacing a worn or corroded piston eliminates piston sticking, reduces brake lever travel, and helps maintain even pad contact for dependable braking on trails and in the field.

Engineered as a true aftermarket replacement, this front piston is built to survive the abuse of off-road use mud, dust, and heat—from daily trail rides to tough farm work. It delivers consistent movement within the caliper bore, helping restore reliable braking feel and equal pad wear across the rotor. With tight tolerances and durable construction, it’s a dependable choice when you need to keep your KVF in service without waiting for OEM stock.

Comprehensive Vehicle Fitment

Note: The piston is specified as the front caliper piston for these KVF Prairie models and corresponds to the OEM reference 43020-1114. For model-year specifics beyond the ranges listed, verify against Kawasaki service data and your caliper variant.

Product Specifications

OEM & Aftermarket Cross-Reference Information

What's Included

The box includes:

• Piston

Note: Seals, boots, and other caliper components are not included; reuse or replace them with an appropriate seal kit if needed.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility – engineered to drop in to the KVF Prairie front caliper without modification.
• OEM Cross-Reference – aligns with Kawasaki 43020-1114, ensuring genuine compatibility with the intended caliper design.
• Premium Materials – aluminum alloy core with a corrosion-resistant finish for reliable longevity in harsh off-road conditions.
• Performance Restoration – restores smooth operation and consistent pad contact after piston wear or pitting.
• Reliability for Trail & Farm – built to withstand mud, dust, and heat, keeping your KVF ready for tough work and exploration.
• Wide Availability – sourced to support a broad network of KVF Prairie repairs and maintenance without long delays.

Installation Notes:

• Inspect the caliper bore – check for scoring or corrosion; if bore is damaged, rebuild or replace the caliper.
• Seals and boots – since the piston kit does not include seals, inspect or replace the caliper seals and dust boot to prevent leaks.
• Lubrication – use brake fluid compatible with your system to lightly lubricate piston seal surfaces during installation; avoid petroleum-based lubes.
• Bleed the brake system – after installation, bleed to remove any air and restore proper pedal feel.
• Caliper alignment – ensure the caliper sits square on the rotor with correct pad alignment to prevent rubbing.
• Torque and fasteners – torque mounting bolts to the vehicle service manual specifications; do not exceed recommended values.

Why Upgrade?

Using a worn or damaged brake piston can lead to inconsistent braking, fluid leakage, and uneven pad wear, all of which compromise safety. This aftermarket piston restores proper hydraulic seal function and piston movement, reviving reliable front braking performance for the KVF Prairie 300/360/400 and giving you back confident stopping power on demanding trails and farm work.