Skip to content Skip to navigation menu

Your Selected Vehicle

Brands

Show More Show Less

Price

Parts for your 2020 Holden Colorado-Alternator

Sort by
Projecta Battery & Alternator Tester - BT100

Projecta Battery & Alternator Tester - BT100

$43
Fitment Notes:
See More
Mechpro Battery & Alternator Tester 9-15V - MPBDBAT

Mechpro Battery & Alternator Tester 9-15V - MPBDBAT

$191
Fitment Notes:
See More
Toledo 10 Piece Alternator Bit Set - 302005

Toledo 10 Piece Alternator Bit Set - 302005

$224
Fitment Notes:
See More
Redarc 12V 40A DC-DC Core Battery Charger - BCDCN1240

Redarc 12V 40A DC-DC Core Battery Charger - BCDCN1240

$574
Fitment Notes:
See More
Redarc 12V 25A DC-DC Core Battery Charger - BCDCN1225

Redarc 12V 25A DC-DC Core Battery Charger - BCDCN1225

$485
Fitment Notes:
See More

Explore 4WD & Adventure

Repco 3 Jaw Pilot Bearing Puller - RST175

Repco 3 Jaw Pilot Bearing Puller - RST175

$97
Fitment Notes:
See More
Redarc DC to DC Battery Charger 12V 50A - BCDC1250D

Redarc DC to DC Battery Charger 12V 50A - BCDC1250D

$947
Fitment Notes:
See More
CTEK DC to DC Battery Charger 12v 20 Amp - 40-315

CTEK DC to DC Battery Charger 12v 20 Amp - 40-315

$859
Fitment Notes:
See More
Projecta 12V Digital Battery Analyzer - BLT700

Projecta 12V Digital Battery Analyzer - BLT700

$1,665
Fitment Notes:
See More
VDO Tachometer Electric 12V 0 - 7000 rpm 80mm - 333015032
VDO

VDO Tachometer Electric 12V 0 - 7000 rpm 80mm - 333015032

$644
Fitment Notes:
See More
VDO Tachometer Electric 12V 0 - 7000 Rpm 85mm - 333015033
VDO

VDO Tachometer Electric 12V 0 - 7000 Rpm 85mm - 333015033

$700
Fitment Notes:
See More
VDO Tachometer Electric 12V 0 - 4000 rpm 80mm - 333035002
VDO

VDO Tachometer Electric 12V 0 - 4000 rpm 80mm - 333035002

$969
Fitment Notes:
See More
VDO Tachometer Electric 12V 0 - 3000 rpm 85mm - 333035004
VDO

VDO Tachometer Electric 12V 0 - 3000 rpm 85mm - 333035004

$672
Fitment Notes:
See More
Showing 1 - 31 of 31 products

Maintaining and Replacing the Alternator in Your 2020 Holden Colorado

The alternator is a crucial component in the electrical system of your 2020 Holden Colorado. It charges the battery while the engine is running and powers essential electrical systems. Keeping the alternator in good working condition is important for the performance and reliability of your vehicle. Let's delve into some tips on maintaining and potentially replacing your Holden Colorado's alternator.

The lifespan of an alternator can vary, often around 7-10 years or between 100,000 to 150,000 kilometres. However, driving conditions, such as frequent short trips or extreme weather, can impact its longevity. Regular maintenance can help extend the life of your alternator and preemptively address any issues before they lead to more significant problems.

  • Start with a visual inspection. Regularly check the alternator and its connections for signs of wear or damage. Look for any loose wires, cracked belts, or corrosion. Also, make sure the alternator belt is tight enough because a loose belt can slip and fail to transfer power efficiently.
  • Keep your battery in good condition. The alternator and battery work closely together. A weak or failing battery can put additional strain on the alternator, potentially leading to premature failure. Make sure to regularly test your battery and replace it if necessary.
  • Listen for unusual noises. If you hear any strange grinding or whining noises coming from the area of the alternator, it could be an early sign that it's starting to fail.

If you suspect any issues with your alternator or its components, it's important to address them promptly to avoid getting stranded with a dead battery. Here's a step-by-step guide if replacement becomes necessary:

  1. First, ensure the vehicle is parked on a flat surface and turn off the ignition. Disconnect the negative battery terminal to prevent any electrical shocks or shorts while working on your vehicle.
  2. Remove the drive belt from the alternator. Depending on your engine, you may need to loosen some bolts or release a tensioner to do this.
  3. Disconnect the electrical harness and remove any bolts holding the alternator in place. Carefully remove the alternator from the engine bay.
  4. Install the new alternator by aligning it with the mounting brackets. Replace and tighten the bolts, then reconnect the electrical harness.
  5. Reinstall the drive belt, ensuring proper tension. If you've replaced the tensioner, make sure it is correctly adjusted.
  6. Reconnect the negative battery terminal and start the engine. Check for warning lights on the dashboard and listen for any unusual sounds, indicating a problem.

After replacing the alternator, monitor the vehicle's electrical performance. If you notice any persistent issues such as dimming headlights, an illuminated battery warning light, or problems starting the engine, a professional mechanic should inspect the electrical system. These could be signs of a more intricate problem or an improper installation.

Routine maintenance checks and timely repairs can go a long way in ensuring the longevity of your Holden Colorado's alternator. By following the guidelines above, you can minimise the risk of being caught off guard by electrical failures. Keep your vehicle in its optimal condition and enjoy the rugged performance your Colorado promises. Happy driving!