Keep your engine running at optimal temperature with this precision-engineered coolant thermostat designed specifically for Isuzu NPR, NPR-HD, NQR, and NRR models from 1998-2025. Compatible with both 4HE1 4.8L and 4HK1 5.2L engines, this thermostat maintains a consistent 85°C operating temperature for maximum engine efficiency. The robust construction features a durable housing and reliable thermal response mechanism that helps prevent engine overheating and ensures proper warm-up cycles. This direct-fit replacement part matches the original equipment specifications, making installation straightforward while maintaining proper coolant flow regulation. Essential for maintaining your vehicle's cooling system performance, this thermostat helps protect your engine from temperature-related stress and potential damage.
COMPATIBILITY: Designed specifically for Isuzu NPR, NPR-HD, NQR, and NRR models from 1998-2025 with 4HE1 4.8L and 4HK1 5.2L engines
TEMPERATURE RATING: Engineered to open at 85°C (185°F) for optimal engine temperature regulation and performance
CONSTRUCTION: Features durable metal housing with precision-engineered internal components for reliable operation
FUNCTION: Controls engine coolant flow to maintain consistent operating temperature and prevent overheating
DIRECT REPLACEMENT: Matches OEM specifications for proper fit and function in supported vehicle applications
OEM
8973007871 / 8973007872
8973007873 / 8973007870
8972631940 / 8972318870
8971674950 / 8971645690
8970286902 / 8943703781
Specifications
| SKU / Part Number | 7300787 |
|---|---|
| Brand | CHM |
| OEM | 8973007871, 8973007872, 8973007873, 8973007870, 8972631940, 8972318870, 8971674950, 8971645690, 8970286902, 8943703781, 1876184310
|
| Weight | 0.25 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 |