Keep your engine running at optimal temperature with this precision-engineered 82°C coolant thermostat, specifically designed for Isuzu NPR, NPR-HD, NQR, and NRR models equipped with 4HE1 4.8L or 4HK1 5.2L engines (1998-2024). This thermostat features a robust stainless steel spring construction and brass components for lasting durability. It regulates coolant flow with precise temperature control, helping prevent engine overheating and maintaining efficient operation. The thermostat opens at 82°C (180°F) to allow proper coolant circulation through the engine. Installation is straightforward with its direct-fit design, ensuring proper sealing and functionality. This replacement part is compatible with various Isuzu commercial truck applications, making it an essential component for maintaining your vehicle's cooling system performance.
COMPATIBILITY: Direct fit replacement thermostat for Isuzu NPR, NPR-HD, NQR, and NRR models with 4HE1 4.8L and 4HK1 5.2L engines from 1998-2024
TEMPERATURE RATING: Precisely engineered to open at 82 degrees Celsius (180 degrees Fahrenheit) for optimal engine operating temperature
CONSTRUCTION: Features durable stainless steel spring and brass components for long-lasting performance and reliability
DESIGN: Compact spiral design ensures smooth operation and consistent temperature regulation for improved engine efficiency
INSTALLATION: Comes with pre-attached seal for proper fitment and prevention of coolant leaks during operation
OEM
8973007901 / 8973007902 / 8973007903 / 8973007900
8972631910 / 8972334180 / 8972318900 / 8971674980
8970918060 / 8943703772 / 8943703771
Specifications
| SKU / Part Number | 7300790 |
|---|---|
| Brand | CHM |
| OEM | 8973007901, 8973007902, 8973007903, 8973007900, 8972631910, 8972334180, 8972318900, 8971674980, 8970918060, 8943703772, 8943703771, 1876184300
|
| Weight | 0.31 lb |
| Dimensions (L × W × H) | 3 in × 3 in × 3 in |
| Category | Cooling System |
Compatibility
| Make | Model | Years | Engine | Liters | Fuel |
|---|---|---|---|---|---|
| Isuzu | NPR | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NPR | 2005–2009 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NPR-HD | 2005–2025 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NQR | 1999–2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NQR | 2005–2025 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NRR | 2005–2026 | 4HK1-TC | 5.2 | Diesel |
| Chevrolet | W3500 Tiltmaster | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Chevrolet | W3500 Tiltmaster | 2005–2009 | 4HK1-TC | 5.2 | Diesel |
| Chevrolet | W4500 Tiltmaster | 2005–2010 | 4HK1-TC | 5.2 | Diesel |
| Chevrolet | W5500 Tiltmaster | 1999–2004 | 4HE1-TC | 4.8 | Diesel |
| Chevrolet | W5500 Tiltmaster | 2005–2010 | 4HK1-TC | 5.2 | Diesel |
| Chevrolet | W5500HD Tiltmaster | 2005–2010 | 4HK1-TC | 5.2 | Diesel |
| GMC | W3500 Forward | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| GMC | W3500 Forward | 2005–2009 | 4HK1-TC | 5.2 | Diesel |
| GMC | W4500 Forward | 2005–2010 | 4HK1-TC | 5.2 | Diesel |
| GMC | W5500 Forward | 1999–2004 | 4HE1-TC | 4.8 | Diesel |
| GMC | W5500 Forward | 2005–2010 | 4HK1-TC | 5.2 | Diesel |
| GMC | W5500HD Forward | 2005–2010 | 4HK1-TC | 5.2 | Diesel |