OEM Standard Engine Speed Sensor with Durable Construction and Precision Sensing for ISUZU 4HK1 Engine

Precision-engineered engine speed sensor monitors crankshaft rotational speed, providing critical data to the ECU for precise fuel injection timing and engine management in ISUZU 4HK1 diesel engines.

The Engine Speed Sensor / Revolution Sensor / Crankshaft Position Sensor (OEM Numbers: 8-97606943-0 / 8976069430) is a premium-quality, direct replacement electronic component designed specifically for ISUZU vehicles equipped with the 4HK1 diesel engine. This precision-engineered sensor is a critical component of the engine management system, responsible for monitoring the rotational speed of the crankshaft.

• OE Quality: Manufactured to strict ISUZU dimensional and electrical specifications for perfect fit and function
• Precision Sensing: High-quality sensing element provides accurate, reliable engine speed data
• Durable Construction: Robust housing withstands extreme temperatures, vibration, and exposure to engine oil
• Reliable Signal Transmission: Precision electrical connector ensures secure, consistent communication with the ECU
• Optimizes Engine Performance: Accurate engine speed data enables precise fuel injection timing for maximum power and efficiency
• Improves Fuel Economy: Proper engine timing optimizes combustion and fuel efficiency
• Ensures Reliable Starting: Accurate sensor data is essential for proper engine start-up
• Restores Drivability: Eliminates rough idling, stalling, and loss of power caused by faulty sensors
• Direct Replacement: Simple plug-and-play installation with OE-spec connector
• Long Service Life: Engineered for reliability in demanding commercial applications
• Essential Component: Critical for engine management system operation

This engine speed sensor is specifically designed for ISUZU vehicles and equipment equipped with the 4HK1 engine. Common applications include:

• ISUZU NPR – Medium-Duty Trucks (NPR66, NPR70, NPR75)
• ISUZU NQR – Medium-Duty Trucks
• ISUZU 700P – Medium-Duty Trucks
• ISUZU FRR – Medium-Duty Trucks
• ISUZU FSR – Medium-Duty Trucks
• ISUZU FTR – Medium-Duty Trucks

Professional installation recommended. Proper electrical safety is essential:

1. Disconnect battery – Disconnect the negative battery cable before beginning work
2. Locate the engine speed sensor – Identify the crankshaft position/speed sensor on the engine block, typically near the flywheel housing or crankshaft pulley
3. Disconnect the electrical connector – Carefully unplug the wiring harness connector from the sensor
4. Remove the old sensor – Unbolt and remove the old engine speed sensor
5. Inspect the mounting hole – Check the mounting bore for debris, damage, or metal shavings
6. Clean the mounting area – Clean the mounting surface and surrounding area
7. Inspect the O-ring/seal – Check the sensor O-ring for damage; replace if necessary
8. Prepare the new sensor – Inspect the new sensor and verify it matches the original
9. Install the new sensor – Position the new sensor and secure with mounting bolts
10. Check the air gap – Ensure the sensor is properly positioned with the correct gap to the reluctor wheel
11. Connect the electrical connector – Plug the wiring harness into the new sensor
12. Reconnect battery – Reconnect the negative battery cable
13. Clear fault codes – Use a diagnostic tool to clear any fault codes related to the engine speed sensor
14. Start the engine – Start the engine and verify proper operation, smooth idle, and no warning lights
15. Check live data – Monitor live data from the sensor using a diagnostic tool to verify correct readings
16. Test drive – Test drive the vehicle to verify restored engine performance

• Material Verification: Confirms housing and sensing element materials meet OE specifications
• Dimensional Inspection: Housing dimensions, mounting points, and connector pin positions verified against OEM tolerances
• Electrical Testing: Sensor output signal and voltage verified for accuracy across the operating range
• Temperature Testing: Sensor operation verified across the operating temperature range
• Sealing Integrity: Sensor sealing verified to protect internal components from moisture and contaminants
• Visual Inspection: 100% checked for defects, machining flaws, or damage
• Packaged Safely: Protected in anti-static packaging to prevent electrostatic damage during transit

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea