COGENG 2547-1015 RPM Revolution Sensor Doosan DH220-5 DH220-7 DX225

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COGENG 2547-1015 RPM Revolution Sensor Doosan DH220-5 DH220-7 DX225

Name: COGENG 2547-1015 RPM Revolution Sensor Doosan DH220-5 DH220-7 DX225
Brand: Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revol

Product name: Doosan Revolution Sensor
Part No: 2547-1015 25471015
Model Number:For DH220-5 DH220-7 DX225
Material:Lron+Rubber
Packing:PP bag inside, carton box outside
Payment Terms:Western Union, L/C, T/T, MoneyGram, D/A, D/P
MOQ:Acceptable trial order
Shipping Mode:By air, by sea, by express(Fedex, UPS, DHL, TNT, etc.)
Place of Origin:Guangdong, China
Brand name:COGENG
CertifiCATEEion:ISO9001
Supply :500PCS

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Desciption

Product Information
The COGENG 2547-1015 is a high-precision RPM (Revolutions Per Minute) revolution sensor, also known as a speed sensor or crank angle sensor. This component is a direct aftermarket replacement designed to monitor engine speed by detecting the rotation of the flywheel ring gear or camshaft timing gear. It converts rotational mechanical motion into an electrical pulse signal, which is transmitted to the Engine Control Unit (ECU) or tachometer to ensure precise engine timing and RPM display.

Part Number: 2547-1015
Type: Electromagnetic Pickup (MPU) / Active Speed Sensor
Material: High-temperature resistant housing with sealed connector
Key Feature: Rugged construction resistant to vibration, oil, and extreme temperatures.

Comparison Table

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

Related Doosan Engine Sensors

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

PRODUCT IDENTIFICATION

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

CROSS REFERENCE GUIDE

Brand	Part Number
COGENG	2547-1015
Doosan	2547-1015
Interchange	2547-1016, 2547-1017, 2547-1018, 2547-1019

Compatible Excavator Models
This sensor is specifically engineered to fit a range of Doosan crawler excavators. Confirmed compatible models include:

Doosan DH220-5
Doosan DH220-7
Doosan DX225
Note: Also fits other Doosan models and industrial engines utilizing this sensor configuration. Please verify your original equipment part number (OEM) before ordering.

COMPATIBLE DOOSAN EXCAVATORS

DH220-5 Specifications

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

DH220-7 Specifications

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

DX225 Specifications

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

Compatible Engines

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.

REVOLUTION SENSOR FUNCTION

How the Revolution Sensor Works

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

Output Characteristics

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 in Engine Management

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)

TECHNICAL SPECIFICATIONS

Electrical Specifications

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

Mechanical Specifications

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

Pinout Configuration

Pin	Function	Signal Type
Pin 1	Signal (+)	AC voltage (variable frequency)
Pin 2	Signal (-) / Shield	Ground / Shield

Environmental Ratings

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

QUALITY FEATURES

High Accuracy & Durable Design

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

Testing & Certification

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

Certifications

✅ ISO 9001:2015 – Quality Management System
✅ RoHS Compliant
✅ REACH Compliant
✅ Meets Doosan OEM Specifications

COMMON FAILURE SYMPTOMS (SOLVED BY THIS SENSOR)

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

Diagnostic Trouble Codes (DTC) Resolved

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

INSTALLATION INFORMATION

Required Tools

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)

Installation Guidelines

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

Torque Specifications

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.

Air Gap Adjustment (If Applicable)

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

Critical Installation Notes

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.

TROUBLESHOOTING GUIDE

Quick Electrical Test (with multimeter)

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)

Before Replacing Sensor

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

After Sensor Installation

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)

PAYMENT & SHIPPING

Payment Terms

Method	Accepted
Western Union	✓
L/C (Letter of Credit)	✓
T/T (Telegraphic Transfer)	✓
MoneyGram	✓
D/A (Documents against Acceptance)	✓
D/P (Documents against Payment)	✓

Shipping Modes

Method	Carrier(s)
By Air	Available
By Sea	Available
By Express	FedEx, UPS, DHL, TNT

COGENG ADVANTAGES

Technical Advantages

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

Quality Advantages

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

Cost Advantages

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

Convenience Advantages

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 NOW

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

SAFETY INFORMATION

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.

How to Use & Installation Guide
Before starting the installation, ensure the engine is turned off and has completely cooled down.

Step 1: Location. Locate the sensor housing, typically mounted on the flywheel bell housing or near the engine’s timing gear cover.
Step 2: Removal. Disconnect the electrical harness plug. Unscrew the old sensor using a deep socket wrench.
Step 3: Installation. Carefully screw the new COGENG 2547-1015 sensor into the threaded bore. Do not tighten fully yet.
Step 4: Adjustment (Critical). Turn the sensor in manually until the tip touches the gear tooth. Then, back the sensor out by 1/2 to 3/4 of a turn. This sets the proper air gap.
Step 5: Locking. Hold the sensor in position and tighten the lock nut to secure it. Reconnect the electrical harness.
Step 6: Verification. Start the engine and verify the RPM gauge is working smoothly without erratic jumping.

Safety Instructions

Engine State: Always perform installation with the ignition off and the engine stationary to prevent personal injury from rotating parts.
Hot Surfaces: Exhaust manifolds and engine blocks retain extreme heat. Wear heat-resistant gloves if working immediately after engine shutdown.
Electrical Short: Disconnect the battery’s negative terminal before handling electronic connectors to prevent short circuits.
Magnetic Field: Due to the sensor’s strong magnetic core, keep it away from pacemakers and sensitive magnetic media (credit cards, etc.).
Routing: Secure the sensor wire away from high-heat areas (exhaust) and moving linkages to prevent chafing or melting.

Frequently Asked Questions

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.

Q: My RPM gauge is not working after installation. What went wrong?

A: In 90% of cases, this is caused by an improper air gap. Ensure the sensor was backed out exactly 1/2 to 3/4 turn. If it is too far from the gear teeth, the signal voltage will be too weak for the gauge to read.

Q: Does this sensor need an external power supply?

A: No. The 2547-1015 is typically a passive inductive sensor. It generates its own AC voltage pulse as the gear teeth pass the magnetic tip; therefore, it does not require an external 12V/24V power feed to generate the signal.

Q: Can I use this sensor with a different excavator brand?

A: Compatibility depends strictly on thread size, signal type (inductive), and connector shape. While listed for Doosan, it may fit other engines, but you must verify the physical dimensions and resistance value (typically 1,000–2,500 Ohms for this series) match your OEM requirements.

Q: The plastic connector looks different from my original part.

A: Minor design improvements to the connector shell may occur in aftermarket versions. Verify that the metal pin count (usually 2-pin) and the internal keyway shape match your harness.

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