HEATER ASSY, FUEL

Fuel Heater Assembly for Toyota Diesel Systems ❄️

Cold mornings can turn diesel into waxy gel, starving your engine. This fuel heater keeps diesel flowing, helping fast starts, smooth idle, and stable power. It shields the high‑pressure pump and injectors from cavitation and debris caused by cold‑clogged filters. Built to OEM spec for a precise fit at the filter head/line, it’s a smart upgrade for reliability, efficiency, and longer component life.

How it works

A thermostatic control energizes an electric heating element that warms the fuel before it reaches the filter. The steady heat prevents paraffin crystals, reduces filter icing, and maintains correct viscosity. Robust alloy body, sealed connectors, and fuel‑safe O‑rings ensure durable, leak‑free operation with modern ULSD and bio‑blend fuels.

What if it fails ⚠️

Expect hard cold starts, rough idle, stalling on throttle, frequent filter blockages, poor economy, and possible pump/injector wear. You may see loss of power in freezing temps or warning codes for low rail pressure. Inspect for blown fuses, corroded plugs, cracked housing, or fuel seep at seals.

Pro tips

Bleed the system after install, renew O‑rings, verify 12V supply, and confirm heater draw per spec. Pair with a fresh filter for best cold‑flow performance.

Compatibility

• Hilux Surf
• Land Cruiser Prado