Heating and Cooling› Heaters

ULTRA HEAT

25GAL MAX HOLDING TANK 13.5V 4.0AMP

$223.93

SKU: U01J AMM0900

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In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The UltraHeat AM-Model 0900 is an RV holding tank heater designed for standard RV holding tanks up to 25 gallons (95L). This 13.5VDC heater draws 4.1 Amps and produces 55.35 watts, offering anti-freeze protection for RV and marine holding tanks and drainage systems.

It features an easy peel-and-stick installation and is built with UltraHeat Technology, designed for long-lasting performance in extreme cold conditions down to -40°F (-40°C).

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandULTRA HEAT
Part NumberU01J AMM0900

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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