Here's a breakdown of potential parts you might need, categorized by component:
Alternator:
* Diode (Rectifier): If your alternator isn't charging, a faulty diode is a common culprit. These are usually sold as a set, replacing all diodes at once.
* Voltage Regulator: Regulates the alternator's output voltage. A faulty regulator can lead to overcharging or undercharging.
* Brushes: These make electrical contact with the rotor. Worn brushes cause poor charging or intermittent charging issues.
* Rotor: The rotating part of the alternator. Failure is less common but possible.
* Stator: The stationary part of the alternator. Also less common to fail than other parts.
* Bearings: Worn bearings create noise and ultimately alternator failure.
* Slip Rings: Connects the rotor to the stator. Wear on slip rings can lead to intermittent charging.
* Complete Alternator: Sometimes it's more cost-effective to replace the whole alternator than repair individual parts.
Starter:
* Solenoid: The electromagnetic switch that engages the starter motor. This is a very common failure point.
* Starter Motor (Bendex): The motor itself that cranks the engine. This is more complex to repair and often requires replacement.
* Bendex Gear (Drive): The gear that meshes with the flywheel. Wear or stripping of the teeth is a common cause of starter failure.
* Brush Assembly: Similar to an alternator, worn brushes can cause the starter to fail.
* Complete Starter Motor: Replacing the whole starter is usually more economical than repairing many components.
Before you buy anything:
1. Identify your vehicle: Make, model, year, and engine type are crucial.
2. Diagnose the problem: Is it a complete failure, or intermittent? Testing is important to determine the faulty component. A multimeter is essential for this.
3. Source parts: Reputable auto parts stores (online and brick-and-mortar) are your best bet. Use your vehicle's information to ensure you get the correct parts. Consider OEM (Original Equipment Manufacturer) parts for longevity, but aftermarket parts are often more affordable.
4. Consult a repair manual: A repair manual specific to your vehicle will provide detailed instructions and diagrams.
Disclaimer: Working on alternators and starters involves working with high voltage and potentially dangerous moving parts. If you're not comfortable working with electricity and automotive systems, it's best to take your vehicle to a qualified mechanic. Improper repair could lead to damage to your vehicle or even injury.
