When your Polaris Quattro P40 or P40 Sport stops brushing effectively on one side, the issue is often not the brush itself—it’s the gearbox driving it. The Polaris Quattro P40 Sport Right Side Brush Gearbox (R0838400) is a genuine OEM replacement designed to restore proper brush rotation, debris agitation, and balanced cleaning performance.

This gearbox transfers drive power to the right-side brush, allowing it to scrub stubborn debris from pool surfaces. When it wears out or fails, the cleaner may leave dirt behind, lose traction, or clean unevenly. Replacing the gearbox brings the cleaner back to factory-level brushing performance without replacing the entire unit.

Restores Active Brushing and Debris Removal

The Quattro P40 relies on powered side brushes to loosen dirt and push debris toward the intake. A worn or failed gearbox can cause:

• One brush to stop spinning

• Uneven cleaning paths

• Poor debris pickup along walls or edges

• Reduced overall cleaning effectiveness

Installing the R0838400 right-side brush gearbox restores proper brush motion and improves cleaning consistency across the pool.

Designed Specifically for Polaris Quattro P40 & P40 Sport

This gearbox is engineered exclusively for:

• Polaris Quattro P40

• Polaris Quattro P40 Sport

It is a direct-fit replacement for the right side brush assembly, ensuring correct alignment, gearing, and drive engagement. Using the proper OEM gearbox prevents premature wear and ensures smooth, reliable operation.

Genuine Polaris OEM Construction

As an OEM Polaris part, the R0838400 gearbox is built to factory specifications using materials designed to withstand:

• Continuous underwater operation

• Chlorine and pool chemicals

• Mechanical load from active brushing

• Long cleaning cycles

OEM quality matters for drivetrain components where precision and durability directly affect performance.

Smart Repair That Extends Cleaner Life

Replacing a failed brush gearbox is a cost-effective alternative to replacing the entire cleaner. It’s an ideal repair when:

• The cleaner still has strong suction

• The body and tracks are in good condition

• Only one side brush has stopped rotating

This targeted repair restores full functionality and extends the service life of your Quattro cleaner.

Product Specifications

Why Pool Owners Choose the Polaris R0838400 Gearbox

• Restores powered brushing on one side

• Improves debris agitation and pickup

• OEM Polaris fit and durability

• Prevents uneven cleaning patterns

• Extends the life of Quattro P40 cleaners

• Cost-effective targeted repair

If your Quattro P40 is cleaning unevenly or missing debris, the brush gearbox is often the root cause.

Buy with Confidence from Benchmark Pool Supply

When you purchase the Polaris Quattro P40 Sport Right Side Brush Gearbox – R0838400 from Benchmark Pool Supply, you’re buying from pool professionals who understand cleaner drive systems and real-world repair decisions.

We stock genuine Polaris replacement parts and help customers fix the right component the first time.