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Type :
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starter
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Specification :
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12v 2.5kw
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Number of feet :
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9T
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Brand :
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nuojin
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Number :
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C00000047
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Quality :
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NEW
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Delivery time :
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10 day
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Overview of the C00000047 Starter Motor
This C00000047 starter motor is the 12V, 2.5 kW replacement for SAIC Maxus V80 applications. The housing, drive end and terminal positions follow the original design, so the unit bolts straight onto the bell housing and reuses the existing cabling.
Every unit is bench tested at the factory for current draw, solenoid pull-in and pinion throw, because those three values decide whether a starter works in a cold engine bay as well as it does on a test bench.
Specifications at a Glance
- Rated voltage: 12V
- Rated output: 2.5 kW
- Pinion: 9 teeth
- Type: reduction gear starter with pre-engaged solenoid
- Application: SAIC Maxus V80
- Net weight: approximately 3.5 kg
- Condition: new, direct replacement for the original unit
A 12V 2.5 kW rating is the output the motor can hold while cranking, not a peak figure. It is sized so the engine reaches starting speed on the first or second revolution, which is what makes a healthy start feel immediate.
A pre-engaged solenoid pushes the pinion into mesh before the main contact closes, which prevents the tooth damage that occurs when a motor spins up against a stationary ring gear.
Reference Numbers and Cross References
The reference family for this starter covers the numbers listed here:
- C00000047
- C00028289
- 0001109254
- 0001109267
- CST10446GS
- CST21120GS
- 8000670
- DRS0021
- RAS31132
- 134758080
- AZE2209
- 1S1199
- QDJ1304
- STB4020AB
- STB4020BA
- STD4020SU
Several numbers in this list belong to complete starter assemblies while others refer to the motor only. A visual check of the drive end protects against the most common ordering error. This starter is listed with 16 references in total.
Fitment and Application
SAIC Maxus V80 applications in this range share the same mounting pattern and terminal layout, which is why one reference can serve several model years. Fitment is still decided by the starter number rather than by the badge on the vehicle. On SAIC Maxus V80 installations, access to the C00000047 usually decides how long the job takes.
Vehicles that have had an engine or gearbox replacement may already carry a different starter from the one the catalogue expects, so treat the paperwork as a starting point rather than the final answer.
Common Failure Patterns
Most failures start at the solenoid contact. Each start switches the full cranking current through a copper disc, and after thousands of cycles that disc pits and burns. The result is the familiar single click with no rotation, or a delay before the motor turns.
Oil or coolant mist from a leaking seal finds its way into the drive end housing, mixes with carbon dust and forms a conductive paste. The starter then arcs internally and fails early, whatever its mileage. Fitting the C00000047 correctly takes less time than diagnosing the original fault.
Diagnostic Signs
- A single heavy click, then nothing
- Slow, laboured cranking from cold that improves once the engine runs
- Metallic scrape or whine during cranking
- Starter that disengages late, with a brief screech after the engine fires
- Burning smell near the starter after a failed start attempt
Before replacing the starter, check the battery state of charge, the terminal clamps, the engine earth strap and the main cable. On vehicles of this age a corroded earth connection produces exactly the same slow-crank symptom and costs far less to correct. Because the C00000047 reuses the original bolts and connectors, no adapters are needed on SAIC Maxus V80.
Pre-Fit Checklist
- Condition of the old pinion and ring gear before the new unit goes in
- Main cable continuity and the condition of the lug at the starter stud
- Battery voltage while cranking, measured at the battery posts
- Mounting face cleanliness and bolt condition
- That the replacement terminal layout matches the original harness
Fitting a new starter onto a worn ring gear or a marginal battery shortens its life. Check the simple items first, then fit the unit once and correctly.
Installation Notes
With the battery isolated, remove any heat shield or ducting that blocks access and disconnect the main cable and solenoid connector. Support the unit before the mounting bolts come out; these starters are heavy enough to damage surrounding parts if they drop.
After fitting, confirm the pinion returns freely and the cables are clear of the exhaust. Crank once before the first drive, then re-check the main terminal for tightness after the first heat cycle. The C00000047 ships with its solenoid fitted, so no parts have to be transferred from the old unit.
Quality Control and Supply from Hejian Nuojin Auto Parts Co., Ltd.
Each production batch is inspected for housing dimensions, terminal integrity and pinion fit, and every starter is bench tested before it is boxed. Units ship in neutral cartons with foam protection, which keeps freight damage low and allows distributors to label stock under their own brand.
Standard references are held as spot goods, volume orders are delivered in around 30 days, and every unit carries a one-year warranty against manufacturing defects.
Frequently Asked Questions
Is a 12V and a 24V starter interchangeable?
No. The voltage rating must match the vehicle system; fitting the wrong unit will damage the starter and the wiring.
Can I test the starter on the bench?
Yes. Apply battery voltage to the main stud and the signal terminal and check that the pinion throws and the motor turns. A clamp meter reading against the rated current will show whether the unit is drawing too much.
How do I confirm the starter matches my vehicle?
Compare the original part number first, then check the pinion tooth count and the terminal connector layout. The vehicle model alone is not enough, because more than one starter was fitted during production.
Why does the starter work cold but fail when hot?
Heat raises solenoid resistance and reduces brush spring pressure. Both effects build up gradually and appear first on a hot restart.
Verify that the new starter specifications are 12V 2.5kW, consistent with the SAIC Maxus V80 original factory model (C00050267 or similar).
12mm box-end wrench (for removing/installing the solenoid switch C terminal)
10mm wrench (for removing/installing the solenoid switch fixing nut)
8mm socket + ratchet wrench with short extension rod (for removing/installing the starter fixing bolts)
Torque wrench (calibrated to 40-45N·m)
Insulating gloves and safety goggles
Marker pen and insulating tape
Position Confirmation: The starter is located at the lower right rear of the engine, near the junction of the transmission and flywheel, and is a black cylindrical component.
Clean the mounting surface to remove oil stains and rust.
Align the new starter with the mounting holes, ensuring proper engagement between the starter gear and the flywheel ring gear.
Insert the two M10 fixing bolts and hand-tighten them initially.
Use a torque wrench to tighten the two bolts to a torque of 40-45N·m, ensuring uniform force application.
Note: Over-tightening may damage the starter housing, while under-tightening can cause vibration or detachment during operation.
Connect the battery positive (+) cable to the large terminal (B+) of the starter.
Tighten the nut with a 12mm wrench, controlling the torque to 12±2N·m.
Ensure the wire harness is routed vertically upward to avoid interference with the transmission counterweight.
Connect the control wire from the ignition switch or starter relay to the small terminal (S) of the starter.
Ensure a secure connection, and use insulating tape to bind the small wire to the main wire 30mm away from the terminal.
Confirm all connections are secure, with no risk of looseness or short circuits.
Reconnect the battery negative terminal.
Briefly start the vehicle and observe if the starter operates normally.
Check for abnormal noise, overheating, or smoke.
Always disconnect the battery negative terminal first; otherwise, there is a risk of electric shock and short circuits.
Avoid metal tools contacting both the starter B+ terminal and the vehicle body simultaneously (this will cause a short circuit).
Prohibit smoking or open flames during installation to prevent battery gas explosion.
Strictly control the fixing bolt torque to 40-45N·m (recommended: 45±5N·m).
Ensure the gap between the starter gear and the flywheel ring gear is appropriate to avoid excessive tightness (jamming) or excessive looseness (gear grinding).
Verify the starter is fully seated with no tilting or wobbling.
Never reverse the polarity; otherwise, the starter and electrical system will be burned out.
Ensure the B+ terminal nut is securely tightened (12±2N·m) to prevent weak starting due to poor contact.
Route the S terminal control wire away from high-temperature components to avoid insulation damage.
Keep all wire harnesses away from rotating parts and exhaust pipelines.
Weak Starting: Check if the B+ terminal connection is loose and if the battery is sufficiently charged.
Abnormal Noise: Confirm the starter is securely fixed and the gears are properly engaged.
Failure to Start: Verify the S terminal control wire is correctly connected and the starter relay (located at position 30, ER5 in the engine compartment fuse box) is functioning normally.
Start the vehicle 3-5 times to confirm smooth starting without abnormal noise each time.
Check the starter operating temperature; the normal temperature after operation should not exceed 80℃.
After driving a short distance, recheck all connections for looseness.
The key to correctly installing the V80 starter lies in: Safe Power Disconnection → Precise Positioning → Standard Torque Application → Correct Wiring. Following the above steps ensures reliable operation of the starter and extends its service life. If you have no maintenance experience, it is recommended to have the installation performed by a professional repair shop to avoid unnecessary losses caused by improper operation.
References：
Description of starter location: "Located at the lower right rear of the engine, near the junction of the transmission and flywheel, it is a black cylindrical component."
Reference for removal/installation steps: The "Starter System Inspection and Repair" chapter in the service manual, including procedures such as power disconnection, positioning, fixing, and wiring.
Torque for fixing bolts: 40-45N·m, consistent with the standard torque for M10 bolts specified in the manual.
Electrical safety requirements: "Disconnect the battery negative terminal (-) and insulate it to prevent accidental electric shock and short circuits."
Warning information: "Any unauthorized modifications to the vehicle's electrical system will have serious side effects on the electronic management system and may cause fires."
Installation dimension standards: Specifies key parameters such as the nominal diameter of the starter and the distance between mounting holes.
Known as the "gold standard" for motor vehicle starter installation, it serves as the basis for determining the meshing clearance between the starter gear and the flywheel ring gear.
Electrical connection specifications: Torque for the B+ terminal (main power cable) is 12±2N·m, and requirements for the S terminal (control wire) connection.
Safety standards: "The starting time shall not exceed 5 seconds at a time, and there shall be an interval of 15 seconds before restarting."
Starter removal steps: "Use a 12mm box-end wrench to remove the solenoid switch C terminal, and a 10mm wrench to remove the solenoid switch fixing nut."
Electrical connection details: "The B+ terminal is connected to the battery positive pole, and the S terminal is connected to the ignition switch or starter relay."
General parameters of 12V 2.5kW starters: Consistent with the specifications of SAIC Maxus V80 original factory starters.
Gear parameters: Compatible with the flywheel ring gear (usually 184 teeth) to ensure reliable meshing.
Working principle of the starter: Based on Ampère's Law, a current-carrying conductor is subjected to a force in a magnetic field, realizing the conversion of electrical energy to mechanical energy.
Installation precision requirements: "The gap between the starter gear and the flywheel ring gear shall be appropriate to avoid excessive tightness (jamming) or excessive looseness (gear grinding)."
Safe operation procedures: "Wear protective gloves and take necessary safety measures before removing the starter."
Inspection key points: After installation, "Start the vehicle 3-5 times to confirm smooth starting without abnormal noise each time."
This installation guide integrates SAIC Maxus official technical documents, national standards, industry specifications, and professional maintenance experience, covering:
Safe operation: Strictly follows the power-off protection requirements of the official service manual.
Installation steps: Refers to the service manual process and combines the dimension and torque specifications of national standards.
Electrical connections: Complies with the terminal torque and insulation requirements of the QC/T731-2005 standard.
Inspection standards: Based on the test specifications of automotive maintenance textbooks.
The above content is mainly derived from the SAIC Maxus V80 Original Factory Service Manual and the national standard system, with reference to professional maintenance materials and training textbooks. For more detailed technical parameters, it is recommended to consult the SAIC Maxus official service manual or authorized service centers, where you can find the most complete and authoritative starter installation guide for the V80 model.
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