| Feature | COGENG 2547-1015 | Generic Aftermarket |
|---|---|---|
| OEM fitment | DH220-5/DH220-7/DX225 | Varies |
| Output signal | Clean AC sine wave | Unstable signal possible |
| Temperature range | -40°C to +125°C | -20°C to +85°C |
| Vibration resistance | Heavy duty rated | Standard |
| Connector quality | OEM grade | Inferior plastic |
| Plug & play | Yes | May require adapter |
| Part Number | Description |
|---|---|
| 2547-1015 | Revolution / engine speed sensor |
| 2547-1016 | Revolution sensor (alternative) |
| 2547-1017 | Engine speed sensor (late model) |
| 2547-3002 | Camshaft position sensor |
| 2521-1001 | Oil pressure sensor |
| 2521-2002 | Coolant temperature sensor |
| 2521-3003 | Fuel temperature sensor |
| Parameter | Specification |
|---|---|
| Product Name | Revolution Sensor (Engine Speed Sensor) |
| COGENG Part Number | 2547-1015 |
| OEM Equivalent | Doosan 2547-1015 |
| Product Type | Magnetic Pickup / Inductive Speed Sensor |
| Sensor Type | Variable reluctance (magnetic) |
| Output Signal | AC voltage (frequency proportional to engine speed) |
| Application | Engine RPM monitoring / Crankshaft position |
| Compatible Models | Doosan DH220-5, DH220-7, DX225 Excavators |
| Material | Iron + Rubber (seals: NBR) |
| Packing | PP bag inside, carton box outside |
| Place of Origin | Guangdong, China |
| Brand Name | COGENG |
| Certification | ISO9001 |
| Supply Capacity | 500 PCS |
| Brand | Part Number |
|---|---|
| COGENG | 2547-1015 |
| Doosan | 2547-1015 |
| Interchange | 2547-1016, 2547-1017, 2547-1018, 2547-1019 |
| Parameter | Specification |
|---|---|
| Model | Doosan DH220-5 Excavator |
| Type | 22-ton Crawler Excavator |
| Series | Dash 5 |
| Engine | Doosan DB58TI (6-cylinder turbo) |
| Displacement | 5.8L |
| Application | Engine speed / crankshaft position monitoring |
| Parameter | Specification |
|---|---|
| Model | Doosan DH220-7 Excavator |
| Type | 22-ton Crawler Excavator |
| Series | Dash 7 |
| Engine | Doosan DB58TI (6-cylinder turbo) |
| Displacement | 5.8L |
| Application | Engine speed / crankshaft position monitoring |
| Parameter | Specification |
|---|---|
| Model | Doosan DX225 Excavator |
| Type | 22-ton Crawler Excavator |
| Series | DX Series |
| Engine | Doosan DL06 (6-cylinder turbo) |
| Displacement | 6.0L |
| Application | Engine speed / crankshaft position monitoring |
| Engine Model | Displacement | Cylinders | Found In |
|---|---|---|---|
| Doosan DB58TI | 5.8L | 6-cylinder | DH220-5, DH220-7 |
| Doosan DL06 | 6.0L | 6-cylinder | DX225 |
| Doosan DB58 | 5.8L | 6-cylinder | Various |
Note: Verify compatibility with your equipment model, engine serial number, and production year before ordering. Contact COGENG with your machine details for exact application verification.
| Component | Function |
|---|---|
| Sensor Type | Variable reluctance (magnetic pickup) |
| Target | Flywheel ring gear teeth or crankshaft tone wheel |
| Output | AC voltage sine wave (frequency = engine RPM × number of teeth) |
| ECU Use | Engine speed calculation, fuel injection timing, protection |
| Engine Speed (RPM) | Output Voltage (AC) | Frequency (Hz) |
|---|---|---|
| Cranking (200 RPM) | 0.5 - 1.5 V | Low frequency |
| Idle (800 RPM) | 2.0 - 4.0 V | Medium frequency |
| Working (1,500 RPM) | 4.0 - 8.0 V | Higher frequency |
| Rated (2,200 RPM) | 6.0 - 12.0 V | High frequency |
| Function | Description |
|---|---|
| Engine RPM Display | Provides signal to tachometer (dash display) |
| Fuel Injection Timing | ECU uses speed signal for timing calculation |
| Engine Protection | Over-speed detection and derate |
| Starting Control | Starting motor disengagement signal |
| Diagnostics | Speed sensor fault detection (DTC) |
| Parameter | Specification |
|---|---|
| Sensor Type | Variable reluctance (magnetic pickup) |
| Output Signal | AC voltage (sine wave) |
| Output Voltage (min) | 1.0 V AC @ 200 RPM |
| Output Voltage (typical) | 2-12 V AC (engine speed dependent) |
| Coil Resistance | 200 - 500 Ω @ 20°C |
| Inductance | 100 - 300 mH |
| Air Gap | 0.5 - 1.5 mm (0.020 - 0.060 in) |
| Connector Type | 2-pin Deutsch / AMP |
| Parameter | Specification |
|---|---|
| Housing Material | Zinc-plated steel / Stainless steel |
| Thread Size | M14 × 1.5 |
| Hex Size | 17 mm (11/16") or 19 mm (3/4") |
| Seal Material | NBR (oil resistant) |
| Weight | 0.06 - 0.10 kg (0.13 - 0.22 lbs) |
| Overall Length | 50-70 mm |
| Tip Material | Magnetic steel |
| Pin | Function | Signal Type |
|---|---|---|
| Pin 1 | Signal (+) | AC voltage (variable frequency) |
| Pin 2 | Signal (-) / Shield | Ground / Shield |
| Parameter | Rating |
|---|---|
| Operating Temperature | -40°C to +125°C (-40°F to +257°F) |
| Storage Temperature | -40°C to +125°C (-40°F to +257°F) |
| Ingress Protection | IP67 (connector mated) |
| Vibration Resistance | 15G @ 50-2000Hz |
| Shock Resistance | 50G |
| Media Compatibility | Engine oil, diesel fuel, coolant |
| Feature | Benefit |
|---|---|
| Precision magnetic coil | Accurate speed detection across RPM range |
| Oil-resistant housing | Withstands engine environment |
| Sealed connector | IP67 for wet/dusty conditions |
| OEM-spec air gap | Direct fit to Doosan engines |
| 100% factory tested | Every sensor individually tested |
| Plug-and-play | Direct replacement, no calibration required |
| Test | Method | Acceptance Criteria |
|---|---|---|
| Coil Resistance | 100% measurement | 200-500 Ω |
| Output Voltage | Test stand with target wheel | 1.0V min @ 200 RPM |
| Insulation Resistance | 500V DC | ≥100MΩ |
| Dielectric Strength | 500V AC/60s | No breakdown |
| Temperature Cycle | -40°C to +125°C | No degradation |
| Vibration Test | 15G @ 50-2000Hz | No intermittent output |
✅ ISO 9001:2015 – Quality Management System
✅ RoHS Compliant
✅ REACH Compliant
✅ Meets Doosan OEM Specifications
| Symptom | Root Cause | COGENG Solution |
|---|---|---|
| Engine cranks but no start | No speed sensor signal (ECU needs RPM to start) | New sensor restores signal |
| Tachometer reads zero (engine running) | Revolution sensor failure | New sensor restores tachometer |
| Engine runs rough / misfire | Erratic speed signal | New stable sensor output |
| Intermittent engine shutdown | Intermittent speed signal loss | New reliable sensor |
| Engine derate / reduced power | ECU not receiving proper speed signal | New sensor restores full power |
| Hard starting / long crank | Weak or missing speed signal | New sensor improves starting |
| Check engine light (DTC) | Speed sensor circuit failure | New 100% tested sensor |
| Engine overspeed (false) | Erratic signal causing false reading | New stable sensor |
| DTC | Description | Resolution |
|---|---|---|
| P0335 | Crankshaft position sensor circuit | Replace revolution sensor |
| P0336 | Crankshaft position sensor range/performance | Replace revolution sensor |
| P0337 | Crankshaft position sensor low input | Replace revolution sensor |
| P0338 | Crankshaft position sensor high input | Replace revolution sensor |
| P0339 | Crankshaft position sensor intermittent | Replace revolution sensor |
| Tool | Purpose |
|---|---|
| 17mm or 19mm wrench | Remove/install sensor |
| Feeler gauge | Measure air gap (if adjustable) |
| Rags / paper towels | Clean area |
| Multimeter (optional) | Test sensor operation |
| Doosan diagnostic tool | DTC clearing (recommended) |
| Step | Action | Critical Note |
|---|---|---|
| Preparation | ||
| 1 | Park machine on level surface, lower implements | Safety first |
| 2 | Shut off engine, remove key | Lock-out/tag-out |
| 3 | Allow engine to cool | Prevent burns |
| 4 | Locate revolution sensor on flywheel housing | Typically at 10 o'clock or 2 o'clock position |
| Removal | ||
| 5 | Clean area around sensor | Prevent contamination |
| 6 | Disconnect electrical connector (2-pin) | Inspect pins for damage |
| 7 | Remove old sensor (17mm or 19mm wrench) | Note orientation |
| 8 | Clean threads in housing | Remove debris |
| Installation | ||
| 9 | Check sensor tip for damage | Should be clean, no metal debris |
| 10 | Install new sensor hand-tight | Do not cross-thread |
| 11 | Set air gap (if adjustable) | 0.5 - 1.5 mm (0.020 - 0.060 in) |
| 12 | Torque to specification | 15-25 Nm (11-18 ft-lbs) |
| 13 | Reconnect electrical connector | Ensure fully seated, click |
| Final | ||
| 14 | Start engine, check for leaks | Inspect around threads |
| 15 | Verify tachometer operation | Should read RPM |
| 16 | Connect Doosan diagnostic tool | Clear DTCs |
| 17 | Test machine operation | Verify normal function |
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Revolution sensor | 15-25 Nm | 11-18 ft-lbs |
⚠️ IMPORTANT: Do not overtighten. Excessive torque can damage the sensor.
| Step | Action |
|---|---|
| 1 | Loosen lock nut (if equipped) |
| 2 | Screw sensor in until it contacts flywheel teeth |
| 3 | Back out sensor 1/2 to 3/4 turn |
| 4 | Measure air gap (0.5 - 1.5 mm) |
| 5 | Tighten lock nut to secure |
| 6 | Verify sensor does not contact flywheel |
| Note | Detail |
|---|---|
| Magnetic tip | Sensor tip is magnetic; may attract metal debris. Keep clean. |
| Air gap critical | If adjustable, correct air gap is essential for proper operation. |
| Do not overtighten | 15-25 Nm max. Overtightening damages the sensor. |
| Electrical connection | Ensure 2-pin connector is fully seated. |
| DTC clearing | Some ECUs require DTC clearing after replacement. |
| Flywheel condition | Inspect flywheel ring gear teeth for damage. |
| Keep original packaging | For warranty claims. |
| Test | Procedure | Acceptable Reading |
|---|---|---|
| Coil Resistance | Measure across pins | 200-500 Ω |
| Shield to ground | Measure shield pin to sensor body | <1 Ω |
| Output voltage (cranking) | AC voltage across pins while cranking | >1.0 V AC |
| Output voltage (idle) | AC voltage across pins at idle | 2-8 V AC (increases with RPM) |
| Insulation | Measure pins to sensor body | Should be open (OL) |
| Issue | Check | Solution |
|---|---|---|
| Engine won't start | Flywheel ring gear condition | Inspect for damaged teeth |
| No tachometer reading | Wiring harness, connector | Check continuity |
| Erratic reading | Loose connector, corroded pins | Clean, tighten |
| DTC present | Other sensor (cam position) | Check related sensors |
| Issue | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Air gap too large | Adjust air gap |
| No tachometer reading | Connector loose | Reseat 2-pin connector |
| Erratic RPM reading | Air gap too small (sensor hitting teeth) | Adjust air gap (increase) |
| DTC returns | Wiring issue or other component | Check harness between sensor and ECU |
| Weak signal | Air gap too large | Adjust air gap (decrease) |
| Method | Accepted |
|---|---|
| Western Union | ✓ |
| L/C (Letter of Credit) | ✓ |
| T/T (Telegraphic Transfer) | ✓ |
| MoneyGram | ✓ |
| D/A (Documents against Acceptance) | ✓ |
| D/P (Documents against Payment) | ✓ |
| Method | Carrier(s) |
|---|---|
| By Air | Available |
| By Sea | Available |
| By Express | FedEx, UPS, DHL, TNT |
| Advantage | Benefit |
|---|---|
| Direct OEM replacement | Replaces Doosan 2547-1015 |
| Multiple model compatibility | Fits DH220-5, DH220-7, DX225 |
| High accuracy | Precise speed detection |
| Durable construction | Withstands engine vibration |
| Magnetic pickup design | No external power required |
| 100% tested | Every sensor individually verified |
| Plug-and-play | Direct replacement, no calibration |
| Parameter | COGENG Standard |
|---|---|
| Sensor Type | Variable reluctance (magnetic) |
| Coil Resistance | 200-500 Ω |
| Connector | 2-pin Deutsch / AMP |
| Protection | IP67 |
| Testing | 100% electrical |
| Certification | ISO 9001:2015 |
| Comparison | COGENG | Doosan OEM |
|---|---|---|
| Unit Price | $ | $$$ (2-3x COGENG) |
| Savings | 40-60% vs OEM | — |
| Quality | OEM-grade | OEM |
| Warranty | 12 months | 12 months |
| Availability | Factory direct, in stock | Dealer only |
| Advantage | Benefit |
|---|---|
| Direct replacement | Replaces Doosan 2547-1015 |
| Wide model coverage | DH220-5, DH220-7, DX225 |
| Dash 5/7 and DX compatible | Covers multiple series |
| In stock | Ready to ship immediately (500 PCS supply) |
| Order now | Immediate availability |
| Factory direct | Best pricing, no middleman |
| Global shipping | DHL / FedEx / UPS / Sea / Air |
| Order Type | MOQ | Lead Time | Status |
|---|---|---|---|
| Single sensor | 1 | 3-5 days | ✓ In stock |
| Small quantity | 2-10 | 3-5 days | ✓ In stock |
| Bulk order | 10+ sensors | 5-7 days | ✓ Volume discount |
| Fleet program | 50+ sensors | Contact sales | ✓ Best pricing |
Please provide your machine details when ordering:
Model: Doosan DH220-5, DH220-7, or DX225
Serial number (for exact verification)
Engine model (DB58TI or DL06, if known)
Symptoms: No start, no tachometer, etc. (if known)
Example: "Doosan DH220-7 excavator, serial 123456, DB58TI engine, engine cranks but no start - need revolution sensor (2547-1015)."
| Term | Detail |
|---|---|
| Duration | 12 months from purchase date |
| Coverage | Manufacturing defects, material faults, performance failure |
| Exclusions | Improper installation, physical damage, contamination, incorrect air gap |
| Claim Process | Submit photos + batch code + failure description |
| Response Time | Within 48 hours |
| Warning | Detail |
|---|---|
| Engine hazard | Engine may start unexpectedly during testing. Keep clear of fan, belts, pulleys. |
| Hot surfaces | Allow engine to cool before touching. |
| Electrical | Disconnect battery before working on electrical system. |
| Flying debris | Wear safety glasses. |
| Moving parts | Keep hands clear of flywheel area. |
| Air gap | Incorrect air gap can cause sensor damage or no signal. |
Q: What does this sensor do?
A: This sensor monitors engine RPM (revolutions per minute) by sensing the flywheel ring gear teeth. The ECU uses this signal for fuel injection timing, engine control, and tachometer display.
Q: What equipment does this sensor fit?
A: This sensor fits Doosan DH220-5, DH220-7, DX225, DH200 series, DH215 series, DH225LC series, and DX210 series excavators.
Q: What engines is this compatible with?
A: This sensor works with DB58, DL06, DE08TIS, and DE12TIS diesel engines.
Q: Is this a direct replacement for OEM 2547-1015?
A: Yes, COGENG 2547-1015 is a direct replacement for the original Doosan part number 2547-1015 as well as 2547-1016, 2547-1017, and 2547-1018.
Q: Do I need to adjust the air gap during installation?
A: Yes, the air gap between the sensor tip and flywheel ring gear should be set to 0.5–1.5 mm for proper operation.
Q: My engine won't start – could this sensor be the problem?
A: Yes, a failed crank/revolution sensor will prevent the ECU from receiving engine speed signal, causing a no-start condition.
Q: Does this come with a connector pigtail?
A: Please check product listing. Most COGENG sensors include the mating connector or pigtail harness.
Contact COGENG
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