Wilwood 120-17646 UTV6-P 6-Piston Rear Caliper, Anodized Gray (Polaris RZR)

Vehicle Fitment

• UTV / SxS applications - commonly used on Polaris RZR models (2016-2021)
• Right-hand and left-hand versions available

Features

• Forged aluminum body for strength and lightweight performance
• Six stainless-steel differential-bore pistons for balanced braking
• Designed specifically for UTV use - handles rough terrain and high load
• Anti-knock-back springs maintain pad engagement over bumps
• Compatible with high-friction BP-10 brake pads
• Compact rear caliper design optimized for tight packaging
• Standard inlet port for brake line connection
• Durable anodized finish to resist corrosion in harsh conditions

Specifications

• Part Number: 120-17646
• Caliper Type: UTV6-P (6-piston)
• Piston Bore Sizes: 1.00" x 6
• Pad Shape: 7812
• Recommended Pad Compound: BP-10
• Mounting: Right-hand / Left-hand versions
• Finish: Anodized Gray
• Weight: ~4.5 lb (per caliper)

Included Components

• 1x caliper body - Wilwood 120-17646
• Pre-installed stainless pistons and internal springs
• Bleed screw
• Pad retention clip
• Installation instructions

Product Description

The Wilwood 120-17646 is a high-performance 6-piston rear caliper engineered for UTV and side-by-side vehicles, particularly Polaris RZR models. Its forged aluminum body provides strength while maintaining low weight, suitable for both utility and high-performance off-road use.

Six stainless-steel differential-bore pistons deliver consistent, balanced braking force, and anti-knock-back springs prevent pad rebound over rough terrain. The caliper is designed to work with BP-10 brake pads (shape 7812) for strong stopping power in tight rear-end applications.

This caliper is rugged and durable, with an anodized gray finish to resist corrosion. Proper verification of rotor compatibility, mounting position, and brake line fit is recommended prior to installation. After setup, system bleeding and pad bedding ensure optimal braking performance.