Bosch Starter Motor - 12V - 1.2kW - 10 Teeth
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eBayStarter motor Clockwise rotation Self-supporting 1 986 S00 940 BOSCH for FIAT
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Starter motor Clockwise rotation Self-supporting 1 986 S00 940 BOSCH for FIATFree delivery in 1–3 days£143.36Visit shop →
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My Motor WorldBosch 1986S00940 Starter Motor (St12v12kwr)
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Bosch 1986S00940 Starter Motor (St12v12kwr)Free delivery in 1–3 days£259.99Visit shop →
Product Information
Full details
This Bosch Starter Motor (part number 1986S00940) is designed for automotive professionals and DIY enthusiasts seeking a reliable replacement for compatible vehicles. Its key benefit is delivering consistent starting power with its 1.2kW rating and 10-tooth pinion. A potential caveat for users is the need to verify exact vehicle fitment and compatibility before purchase, as it is a specific component replacement.
All features
| Model Part Number | 1986S00940 |
|---|---|
| Brand | Bosch |
Extended Product Information
FAQs
What is the voltage of this Bosch starter motor?
This Bosch starter motor operates at 12V.
How many teeth does the pinion gear have?
The pinion gear on this starter motor has 10 teeth.
Can I use this starter motor on any vehicle?
No, this starter motor is designed for specific vehicle applications. You must verify its compatibility with your vehicle's make, model, and year before installation. It replaces specific Bosch and Delco Remy part numbers.
What is the power rating of this starter motor?
The rated power of this starter motor is 1.2kW.
What is the rotation direction of the starter motor?
The rotation direction is clockwise.
How do I know if my starter motor needs replacement?
Symptoms include slow engine cranking, a clicking sound without cranking, or no response when turning the ignition key. If you suspect a faulty starter, it's best to have it diagnosed by a professional.
What does 'self-supporting starter' mean?
A self-supporting starter is a type of starter motor that includes its own bearing and is designed to be directly bolted to the engine without requiring additional support or mounting brackets.
Troubleshooting
Starter motor does not engage or turn the engine.
Check battery voltage and condition. Ensure all electrical connections to the starter are clean and tight. Verify the starter is correctly seated and the pinion gear is engaging the flywheel. Check for any obstructions.
Starter motor makes a clicking sound but does not crank.
This often indicates a weak battery or poor electrical connection. Check battery terminals for corrosion and tighten them. A faulty starter solenoid could also be the cause.
Starter motor cranks slowly.
Low battery voltage is the most common cause. Test the battery under load. Also, check for excessive resistance in the wiring or a failing starter motor.
Starter motor engages but then disengages prematurely.
Inspect the flywheel ring gear for damaged teeth. Ensure the starter's pinion gear is fully extending and retracting correctly. Check mounting bolts for tightness.
Pros and Cons
Pros
- High-quality Bosch manufacturing ensures reliability.
- 1.2kW power output is suitable for a broad range of engines.
- Designed as a direct replacement, simplifying installation.
- Durable construction for long service life.
- Precise dimensions ensure a correct fit on compatible applications.
Cons
- Requires specific vehicle knowledge for correct application.
- Installation may require mechanical expertise and tools.
- Part number verification is crucial before purchase.
- Not a universal fit; specific compatibility checks are necessary.
Setup, Compatibility & Care
Compatibility:
Before purchasing, it is essential to verify that Bosch part number 1986S00940 is compatible with your specific vehicle make, model, and year. Cross-reference the part number with your vehicle's original equipment (OE) specifications or consult a professional mechanic. This unit replaces Bosch 0 986 021 590, 1 986 S01 011, and Delco Remy DRS3887, which can aid in confirmation.
Setup (Installation):
- Safety First: Disconnect the vehicle's battery before starting any work.
- Access: Locate the starter motor on the engine block.
- Removal: Unbolt the old starter motor and disconnect its electrical connections.
- Installation: Mount the new Bosch starter motor using the existing bolts. Ensure the 2 mounting bores and 1 thread bore align correctly.
- Connection: Reconnect the electrical terminals securely.
- Battery: Reconnect the vehicle's battery.
- Test: Attempt to start the engine to verify correct operation.
Care:
Starter motors are generally maintenance-free components. The primary care involves ensuring proper electrical connections and physical mounting. Avoid exposing the starter to excessive moisture or dirt. Regular checks of battery condition and charging system performance indirectly support the starter motor's longevity by ensuring it receives adequate power.
Dimensions Summary:
- Flange Diameter: 64 mm
- Bore Diameter: 8.5 mm / 9.1 mm
- Pinion Rest Position: 11 mm