Orders are currently shipping within 24-48 hours.

08400250-US - Workhorse 145A Alternator / Generator (New)

On SALE! 08400250-US - Workhorse 145A Alternator / Generator (New)


Order Shipment Notice: 

Most orders are shipped within 24 hours from the order date. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays are processed on the next business day. Please see our shipping terms for more information.

Part# 08400250-US


  • Brand New Workhorse 145 AMP Alternator / Generator for GM Engines in Workhorse Chassis.


  • 08400250
  • 08400251
  • 08400236
  • 08400003
Is this a 3 stage alternator? ( Don Spitzmiller, 04/19/2019 )
We don't believe so. ( Support )
Is it a simple bolt on alternator, or is it controlled by an on board computer that needs configuration when fitting the alternator? Hurricane Workhorse RV 8.1 ltr V8 (purchased second hand a year ago). The alternator has been removed by Auto-Electrician in Portugal and does not seem to be the original equipment (looks like a recon), so presumably had failed before (which seems to be strange on a low mileage vehicle - just 10k miles) The equipment removed is a _4 pin_ DR44G 145 amp which may be for a lower powered 6.5 ltr vehicle?. We understand that a stronger 250 amp version is available as an upgrade in the USA a Delco AD244 We want to be sure to fit the correct one, or upgrade to a stronger one, so that it doesn't fail again. Do you have either of these _4 pin version_ alternators in stock? Price/s? Delivery cost to Auto service in Portugal? Thanks for any help you can offer. regards, David ( David Harley, 04/03/2018 )
Not answered yet.
Checking to see if this fits my 2003 Monaco Monarch with 8100 Workhorse chassis. ( Scott, 01/03/2018 )
Not answered yet.

Ask a question

Note: HTML is not translated!

Write a review

Please login or register to review

 The state of California requires that this warning be posted for people purchasing products that reside in California.

WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov

VIN Verification Service Item

This product allows for a VIN verification service.

  • VIN part verificaion is a service that we provide free of charge when a part is purchased.
  • When you provide your VIN below we will personally verify your part selection by your VIN before shipment of your order.
  • This helps ensure that this is the correct part for your vehicle.
  • This is not an automatic VIN check, it is done by a parts specialist once order is placed.
  • We can only VIN verify vehicles back to model year 1996, if older we can help but can't guarantee fitment.
  • If you would like to have your part selection verified before purchase please call or email us.

Shipping Insurance Notice

NOTICE: For orders outside of United States

If you are placing an order to ship outside the United States, Shipping Insurance will be required and added automatically at checkout.


  • Views: 157278
  • Brand: Workhorse
  • Product Code: 08400250-US
  • Availability: 7
  • $477.21
  • $363.49

Available Options