This high-quality OEM thermostat is specifically designed for ISUZU NPR, NPR-HD, NQR, and NRR models equipped with 4HE1 4.8L or 4HK1 5.2L engines from 1998-2024. Operating at 85°C, this coolant thermostat helps maintain optimal engine temperature for efficient performance. The unit comes complete with gasket for proper installation. Manufactured to meet precise specifications, this thermostat helps regulate engine coolant flow and temperature control in your ISUZU commercial vehicle. Professional installation is recommended to ensure proper functioning of this critical engine component.
COMPATIBILITY: Direct OEM replacement thermostat for ISUZU NPR NPR-HD NQR NRR models with 4HE1 4.8L and 4HK1 5.2L engines from 1998-2024
TEMPERATURE CONTROL: Operates at 85°C (185°F) to maintain optimal engine temperature for efficient cooling system performance
OEM
8973007873 / 8973007872 / 8973007871 / 8973007870
8972631940 / 8972318870 / 8971674950 / 8971645690
8970286902 / 8943703781
Specifications
| SKU / Part Number | 7618431 |
|---|---|
| Brand | ISUZU ISP |
| OEM | 8973007873, 8973007872, 8973007871, 8973007870, 8972631940, 8972318870, 8971674950, 8971645690, 8970286902, 8943703781, 1876184310
|
| Weight | 0.25 lb |
| Dimensions (L × W × H) | 4 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 | 2005–2016 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NQR | 1999–2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NQR | 2005–2016 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NRR | 2005–2016 | 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 |