Parts for your 2013 Honda Cr-v-Thermostat

2013 Honda CR‑V Thermostat: purpose, maintenance and replacement advice

Yes, the 2013 Honda CR‑V definitely uses an engine coolant thermostat. Honda’s factory service manual for the 2012–2014 CR‑V includes a full “Cooling System — Thermostat Removal/Installation” procedure, and Honda’s parts catalogue lists a thermostat assembly for this model (commonly referenced as 19301‑R40‑A01 with housing and O‑ring). Those technical sources make the thermostat a relevant, fitted component on every 2013 CR‑V with the 2.4‑litre K‑series engine.

The thermostat’s job is to help the engine warm up quickly and then hold a stable operating temperature. It stays closed when cold to speed warm‑up, then opens around the high‑70s to low‑80s °C and is fully open by roughly 90 °C, routing coolant through the radiator. That temperature control keeps fuel economy, emissions and heater performance on point while protecting the engine from overheating.

While Honda doesn’t specify a strict replacement interval, the thermostat is often renewed when doing major cooling system work or at high mileage. A sensible approach for a 2013 CR‑V is to inspect it during coolant service (Honda Type 2 blue premix, typically every 5 years/100,000 km, then 3–5 yearly thereafter) and replace the thermostat proactively around the 8–12 year/160,000–200,000 km mark, or at the first sign of trouble.

• Common signs it’s due: slow warm‑up, fluctuating temp gauge, weak cabin heat, engine overheating, radiator fans running constantly, or fault codes linked to coolant temperature.
• Best practice: use a quality OEM‑spec thermostat and a new O‑ring, top up with Honda Type 2 coolant, and bleed air properly after refilling.

On the 2.4‑litre CR‑V, the thermostat sits in the housing where the lower radiator hose meets the engine. Replacement is straightforward for a competent DIYer: cool engine, disconnect the battery, drain enough coolant, remove the housing, swap the thermostat (note orientation), fit the new seal, torque the housing bolts correctly, refill with the correct coolant, then run the engine with the heater on hot until the radiator fan cycles to purge air. Check for leaks and recheck the coolant level after a short drive. Anyone unsure should have a licensed technician handle it under the bonnet — overheating risks aren’t worth it.

Where is the thermostat on a 2013 Honda CR‑V?

It’s mounted in the thermostat housing at the engine end of the lower radiator hose, near the front of the engine. From above, look down past the alternator area, from below, it’s accessible once the splash shield is removed. The housing is secured with a couple of bolts and sealed by an O‑ring.

What are the signs of a failing thermostat on this model?

Typical clues include a temp gauge that never reaches normal or swings about, weak heater output, overheating in traffic, fans running more than usual, or a check engine light for coolant temperature performance. Any of these warrant inspection before longer trips around Aotearoa or across Aussie summers.

Should the thermostat be replaced during a coolant change?

It isn’t mandatory every time, but it’s smart to consider replacement during major cooling system service, especially beyond 8–10 years or 160,000 km. Pairing a new thermostat with fresh Honda Type 2 coolant helps keep the CR‑V running at the right temperature and can prevent future dramas.