This oil pan level gauge switch is designed as an OE-equivalent replacement for ISUZU NRR, NPR, NPR-HD, and NQR trucks equipped with the 4HK1 5.2L diesel engine from 2004 to 2024. The sensor monitors engine oil level and provides accurate signals to the dashboard gauge or warning system, helping prevent low-oil operation and potential engine damage. Manufactured to OEM specifications, this oil level switch ensures reliable sensing, proper sealing, and long service life under demanding commercial operating conditions. Ideal for replacing faulty, leaking, or inaccurate oil level sensors during routine maintenance or repairs.
OE-Equivalent Oil Level Sensor — Designed to match factory specifications for accurate oil level measurement and dependable operation
Engine-Specific Application — Compatible with ISUZU 4HK1 5.2L diesel engines in NRR / NPR / NPR-HD / NQR trucks (2004–2024)
Reliable Oil Monitoring — Provides consistent feedback to the gauge or warning system to help protect the engine from low-oil conditions
Durable Sensor Construction — Built to withstand heat, vibration, and exposure to engine oil common in medium-duty commercial vehicles
Prevents False Readings — Helps restore correct oil level indication caused by worn or malfunctioning switches
Direct Replacement Fit — Installs directly into the oil pan using factory threads and connectors with no modifications required
OEM 8973289931
Specifications
| SKU / Part Number | 7328993 |
|---|---|
| Brand | CHM |
| OEM | 8973289931
|
| Weight | 0.25 lb |
| Dimensions (L × W × H) | 5 in × 3 in × 2 in |
| Category | Electrical & Lighting Sensors, Switches & Relays |
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 | 2005–2026 | 4HK1-TC | 5.2 | Diesel |
| Isuzu | NQR | 1998–2004 | 4HE1-TC | 4.8 | Diesel |
| Isuzu | NQR | 2005–2026 | 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 |