Coolant Thermostat - Quinton Hazell

Name: Coolant Thermostat - Quinton Hazell
Brand: Quinton Hazell
SKU: lxdwmerpyh
Availability: InStock

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Quinton Hazell Qth277k Themostat Kit

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Product Information

Full details

This Quinton Hazell Coolant Thermostat (MPN: QTH277K) is designed for vehicle owners experiencing temperature regulation issues, offering a reliable solution to maintain optimal engine performance. Its key benefit is restoring proper coolant flow, preventing overheating or suboptimal operating temperatures. A potential caveat is the need for professional installation due to its location within the engine's cooling system. This thermostat is a small, simple, yet effective component that controls coolant flow between the engine and radiator by opening and closing a valve.

All features

Model Part Number	QTH277K
Brand	Quinton Hazell

Extended Product Information

FAQs

How do I know if my thermostat needs replacing?

Symptoms include the engine overheating rapidly, the temperature gauge reading unusually low, or inconsistent temperature fluctuations. If you notice these issues, your thermostat may need inspection and possible replacement.

What is the opening temperature of this thermostat?

This Quinton Hazell thermostat has an opening temperature of 82°C.

Does this thermostat come with a gasket or seal?

Yes, this thermostat is supplied with a gasket/seal for installation.

Can I install this thermostat myself?

While possible for experienced DIY mechanics, installation involves draining coolant and working within the engine's cooling system. Professional installation by a mechanic is recommended for most vehicle owners.

Which vehicles is this thermostat compatible with?

This thermostat (QH 7581636) is compatible with specific models such as the Fiat Tipo (160_) 1.6 (1988-1995) and Lancia Dedra (835AA) 1.6 (1989-1994). Always use the vehicle fitment tool to confirm compatibility with your exact vehicle.

What happens if the thermostat fails?

A failed thermostat can cause the engine to overheat (if stuck closed) or run too cold (if stuck open). Both conditions can lead to poor fuel efficiency, increased emissions, and potential engine damage over time.

What are the dimensions of this thermostat?

The height of this thermostat is 15 mm.

Troubleshooting

Engine overheats soon after starting

The thermostat may be stuck in the closed position. Replace the thermostat.

Engine temperature gauge stays below normal

The thermostat may be stuck in the open position. Replace the thermostat.

Coolant leaks from thermostat housing

Ensure the gasket/seal is properly seated and the housing bolts are tightened to the correct torque specification. If the housing is damaged, it may need replacement.

Incorrect part fitted, leading to poor temperature control

Verify the part number against your vehicle's requirements using the make/model tool or by consulting a parts specialist. Ensure the correct thermostat for your specific engine and year is used.

Pros and Cons

Pros

Restores proper engine temperature control.
Prevents potential engine damage from overheating.
Simple yet effective mechanical design.
Includes necessary gasket/seal for installation.

Cons

Requires professional installation for most users.
Part number and vehicle fitment must be precisely matched.
Limited to specific vehicle makes and models.

Setup, Compatibility & Care

Compatibility: Before purchasing, it is essential to use the vehicle make and model tool provided to verify that this specific thermostat (QH 7581636) fits your car. Cross-reference the OEM part number (ALFAROME/FIAT/LANCI 7581636) with your vehicle's existing thermostat or consult your vehicle's service manual. Key vehicle applications include Fiat Tipo (160_) 1.6 models from 1988 to 1995 and Lancia Dedra (835AA) 1.6 models from 1989 to 1994.

Setup: Installation of a thermostat typically requires draining some coolant, removing the thermostat housing, replacing the old thermostat with the new one (ensuring correct orientation), and then refilling and bleeding the cooling system. Due to the complexity and the need to handle engine coolant, professional installation by a qualified mechanic is recommended.

Care: Thermostats are generally maintenance-free components. Their performance relies on the overall health of the cooling system, including the radiator, coolant, hoses, and water pump. Regular checks of coolant levels and condition are advised.