Balmar Alternator 3.15" Dual Foot Saddle J10 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-170-J10-KIT] Brand_RAILBLAZA This is only compatible for

This is only compatible for the Flarespace mattress

Telescoping opening

Optional swinging hitch -H (for bike racks or cargo racks)

Heavy duty copper sweep contacts

Balmar Alternator 3.15" Dual Foot Saddle J10 Serpentine Pulley Regulator Temp Sensor - 170A Kit - 12V [XT-DF-170-J10-KIT] Brand_RAILBLAZA This is only compatible forAlternator 3. 15" Dual Foot Saddle J10 Serpentine Pulley Regulator & Temp Sensor 170A Kit 12V Balmar offers a wide range of alternator power upgrades designed specifically for marine industry applications. Balmar installs high reliability bearings, robust rectifier diodes and improved heat sinking capabilities on all our alternators to ensure improved system reliability combined with increased charging power. Features: 3. 15" Dual Foot Saddle J10