Calorstat TH3328.82 Engine Coolant Thermostat

Engine Cooling Thermostat for OE-Style Temperature Control

Calorstat TH3328.82 is a standard engine coolant thermostat set to begin opening at 180°F (82°C). It uses an off-set valve seat and a compact flange design to support consistent coolant flow regulation in the engine cooling system. This thermostat is a direct-fit option for a wide range of vehicles, including Chevrolet Spark, Pontiac Grand Prix, and Buick LeSabre applications.

Key Features

• Start-to-open temperature: 180°F / 82°C
• Standard thermostat design for routine cooling system service
• Off-set valve seat for application-specific fitment
• Sealing flange outside diameter: 1.73 in.
• Height between flanges: 0.9 in.
• Gasket or seal not included
• Part number: TH3328.82

Detailed Product Overview

Calorstat TH3328.82 is built for vehicles that require an 82°C thermostat to maintain proper engine operating temperature. By regulating when coolant begins to circulate through the radiator, it helps the cooling system reach and hold the intended temperature range during normal driving. This part number, TH3328.82, also cross-references Gates 33428S for the same application. Compatible vehicle coverage includes Buick Allure, Buick LaCrosse, Buick Lucerne, Buick LeSabre, Buick Park Avenue, Buick Regal, Chevrolet Impala, Chevrolet Monte Carlo, Chevrolet Camaro, Pontiac Bonneville, Pontiac Grand Prix, Pontiac Firebird, and Suzuki Swift models listed below.

What This Thermostat Helps Address

• Engine running cooler or warmer than expected
• Delayed warm-up after cold starts
• Temperature fluctuation during stop-and-go driving
• Cooling system service on vehicles calling for an 82°C thermostat
• Replacement of a worn or sticking thermostat

Installation Notes and Tips

Verify the thermostat opening temperature and flange dimensions before installation. Because the gasket or seal is not included, reuse should not be assumed; inspect the sealing surfaces carefully and replace any worn coolant system components as needed. Confirm the housing style and valve orientation match the original part, especially on applications using an off-set valve seat. Fits 2011 Chevrolet Spark, N/A; Fits 2006-2010 Pontiac Matiz, N/A; Fits 2005-2009 Buick Allure, N/A; Fits 2005-2009 Buick LaCrosse, N/A; Fits 2006-2008 Buick Lucerne, N/A; Fits 1997-2008 Pontiac Grand Prix, N/A; Fits 1996-2005 Buick LeSabre, N/A; Fits 1995-2005 Buick Park Avenue, N/A; Fits 2000-2005 Chevrolet Impala, N/A; Fits 1998-2005 Chevrolet Monte Carlo, N/A; Fits 1995-2005 Pontiac Bonneville, N/A; Fits 1996-2004 Buick Regal, N/A; Fits 1998-2002 Chevrolet Camaro, N/A; Fits 1998-2002 Pontiac Firebird, N/A; Fits 2002 Suzuki Vitara, N/A; Fits 1996-1999 Buick Riviera, N/A; Fits 1998-1999 Chevrolet Lumina, N/A; Fits 1998-1999 Oldsmobile Intrigue, N/A; Fits 1996-1999 Oldsmobile LSS, N/A; Fits 1997-1998 Oldsmobile Regency, N/A; Fits 1995-1996 Oldsmobile 98, N/A; Fits 1992-1993 Suzuki Swift, N/A; Fits 1989-1990 Suzuki Swift, N/A; Fits 1992 Chevrolet Metro, N/A; Fits 1985-1992 Chevrolet Sprint, N/A.

Quality Assurance

Calorstat TH3328.82 is specified as a standard engine coolant thermostat with application-matched dimensions and an 82°C opening temperature for the listed vehicles. The part number TH3328.82 is also referenced by multiple aftermarket catalogs, including Gates 33428S, Motorad 239-180 / 7239-180, and Wix 49898.