Hotstart TPS151GT10-000 Coolant Preheater — Engine Warm-Up and 1-Year Warranty

Overview

Meet the Hotstart TPS151GT10-000 coolant preheater—a compact, pump-free solution designed to keep diesel and gas engines ready in cold weather, during downtime, or for emergency starts. Built for a range of applications including construction equipment, trucks, marine, and industrial settings, this unit circulates heated coolant via the thermosiphon principle, delivering consistent warmth where it matters most.

Maintaining engine temperature before a start can reduce wear during cold starts and shorten overall warm-up times, while avoiding unnecessary idling. The compact footprint makes it suitable for spaces with limited mounting room, and the unit is designed to endure demanding environments with minimal maintenance.

How it Works

The thermosiphon heating method uses natural circulation to move heated coolant through the engine without a mechanical pump. As the fluid heats, it rises and cooler fluid sinks, creating continuous circulation that distributes heat evenly across the engine block.

• Pre-Heat: Diesel and Gas engines, construction equipment, trucks, marine and industrial applications
• Heating Fluid: Engine coolant, water, and other fluids with no pump required
• Engine Displacement: 350 – 500 CID (5.7–8.2 L)
• Volts/Power: 120 V, 1.5 kW, 12.5 A, 60 Hz
• Temperature Range: ON 100°F (38°C) – OFF 120°F (49°C)

Why It Matters

• Even heat distribution supports quicker, more reliable cold starts.
• No pump means fewer moving parts and reduced maintenance needs.
• Compact design fits tight spaces on vehicles and equipment.
• Rugged IP41 enclosure and PPS tank deliver durability in harsh environments.

Practical Use and Applications

• Ideal for construction equipment, heavy-duty mobile gear, and industrial fleets.
• Suitable for marine applications where dependable pre-heat is valuable.
• Supports emergency starting in cold environments without excessive idling.

Specifications at a Glance

• Fluid Capacity: 0.11 gal (0.42 L)
• Inlet/Outlet Plumbing: 0.625” (15.9 mm)
• Maximum Pressure: 90 psi (620 kPa)
• Tank Material: PPS (Polyphenylene Sulfide)
• Enclosure: IP41
• Power Cord Length: 48” (1219 mm)
• Certification: UL-C/US listed, CE compliant

Warranty

Includes a 1-year warranty for assured support and performance.