4HK1-6HK1 | 97306113-1 | Rotational Speed Sensor Compatible with Excavator Diesel Engine

1. Product Overview & Wholesale Price Range

Rotational Speed Sensor 97306113-1 for 4HK1 / 6HK1 Engine is an important electronic sensor for diesel engine control system. It collects crankshaft rotational speed signal to ECU. It can solve faults like no speed signal, unstable revolution, sudden power loss and engine startup failure.

• Factory Wholesale Price: $32 – $58 USD Direct factory price for machinery repair workshops
• Material Specifications: High precision sensing chip, waterproof connector, wear-resistant housing, stable signal output, anti-interference
• MPN / OEM Part No.:97306113-1
• Fit Engine Model:4HK1, 6HK1 diesel engine
• Function:Crankshaft rotational speed signal detection for engine ECU
• MOQ & Bulk Discount: 1 Unit, favorable price for bulk maintenance orders
• Lead Time: 1‑3 working days, sufficient stock supports global logistics shipment
• Warranty: 12‑month replacement warranty, signal test finished before shipment

2. Application Scope

This rotational speed sensor 97306113-1 is widely used for diesel engine overhaul:

• Engine Overhaul: Direct replacement for original damaged speed sensor for 4HK1 / 6HK1 diesel engine.
• Electrical Fault Repair: Fix missing speed signal, unstable engine speed, intermittent power cut and hard starting.
• Repair Workshop Usage: Original size, plug and play, accurate signal output, easy installation.
• Overseas Parts Reseller: Stable stock quantity, complete QC documents to support cross‑border machinery spare‑part business.

3. Common Speed Sensor Failure Troubleshooting

• Fault 1: No Rotational Speed Signal
  Cause: Sensor internal chip damage, wire breakage, connector corrosion.
  Solution: Install brand‑new speed sensor, check wiring harness and connector.
• Fault 2: Unstable Engine Revolution
  Cause: Sensor signal drift, mounting gap abnormal, metal debris interference.
  Solution: Replace speed sensor, clean mounting position and adjust gap.
• Fault 3: Intermittent Engine Power Loss
  Cause: Sensor aging, poor contact of plug, signal intermittent loss.
  Solution: Fit new speed sensor, clean circuit terminals.
• Fault 4: Difficult Engine Start
  Cause: No crankshaft speed signal sent to ECU, fuel injection stop.
  Solution: Replace speed sensor and test signal output.

4. Matching Engine Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this speed sensor fits my machine?
A: Confirm engine model 4HK1 or 6HK1 and OEM part number 97306113-1 before placing your order.

Q2: What quality inspection will be done before shipment?
A: Each speed sensor completes signal output testing to guarantee stable performance before delivery.

Q3: What points need attention during installation?
A: Power off the machine first, clean mounting surface, protect connector from water and dirt, keep proper sensing gap.