Multiquip 509249 Water Tank Cap - OEM Replacement Part for AR-13 Series Rollers

The water tank cap seals and secures the water tank on AR-13 series ride-on rollers, maintaining proper pressure for the gravity-feed sprinkler system that wets the drums during asphalt compaction operations. This cap prevents water loss, contamination, and maintains system integrity for consistent spray bar performance.

The AR-13 series rollers feature front and rear gravity-fed spray bars that wet the drums to prevent asphalt adhesion during pavement compaction work. Daily maintenance schedules require checking water tank levels before operation, making a properly functioning tank cap essential for maintaining adequate water supply throughout the workday. The sprinkler system is controlled by spray valves that direct water flow to front and rear spray bars—without a secure tank cap, the system cannot maintain proper water delivery pressure.

This cap is designed specifically for the water tank assembly on AR-13 series ride-on tandem drum rollers, which have operating weights ranging from 3,088 to 3,437 lbs depending on ballast configuration. Compatible with multiple AR-13 variants including vibratory and non-vibratory models.

Compatible Models:

• AR13D
• AR13H
• AR13HA
• AR13HAR

Genuine Multiquip OEM part, sold by an authorized dealer.