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2021 Ram 2500
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2021 Ram 2500

Alternators

A bad alternator will give you all sorts of problems: power windows and dashboard lights that don’t work, headlights that are dim or flickering, or even a car that stalls or is hard to start. Save yourself the headache by getting a high-quality replacement alternator here at CarParts.com. Our alternators are engineered by respected industry veterans in world-class manufacturing facilities, so you know you’re getting a heavy-duty part that went through strict quality control. Choose from a wide range of new and remanufactured alternators for any location (upper, lower, primary, auxiliary, etc.). Take a look at our products today and get big savings on a replacement alternator.
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Dual Alternator System, With 180 Amp Alternator, Remanufactured, 6.4L, QB Premium - Upper
Quality-Built®
Dual Alternator System, With 180 Amp Alternator, Remanufactured, 6.4L, QB Premium - Upper
Part Number: MPA11477
Guaranteed to Fit
$272.49

+ $41.48 Refundable Core Charge

Vehicle Fitment
  • 2021 Ram 2500 Laramie Longhorn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Laramie 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Big Horn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Tradesman 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Power Wagon 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Limited Longhorn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Limited 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Lone Star 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
Product Details
Location : UpperNotes : 12:15 Clock; External RegulatorCondition : RemanufacturedAmperage Output : 180 AmpPulley Type : SerpentineNumberof Grooves : 6 GroovesQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementRotation : Clockwise rotationIncludes : With internal fanSeries : QB PremiumVoltage : 12 Volts
Dual Alternator system, With 220 Amp Alternator, Remanufactured, 6 Cyl 6.7L, QB Premium - Primary
Quality-Built®
Dual Alternator system, With 220 Amp Alternator, Remanufactured, 6 Cyl 6.7L, QB Premium - Primary
Part Number: MPA11379
Guaranteed to Fit
$195.99

+ $67.10 Refundable Core Charge

Vehicle Fitment
  • 2021 Ram 2500 Laramie 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Limited Longhorn 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Tradesman 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Big Horn 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Lone Star 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Limited 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
  • 2021 Ram 2500 Laramie Longhorn 6 Cyl 6.7L Dual Alternator system, With 220 Amp Alternator
Product Details
Location : PrimaryCondition : RemanufacturedAmperage Output : 220 AmpPulley Type : SerpentineNumberof Grooves : 8 GroovesQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : QB PremiumRecommended Use : OE ReplacementRotation : Clockwise rotation
Dual Alternator (Primary); Mitsubishi Unit 180 Amp, New, 6.4L -
WAI®
Dual Alternator (Primary); Mitsubishi Unit 180 Amp, New, 6.4L -
Part Number: WAI11477N
Guaranteed to Fit
$207.99
Vehicle Fitment
  • 2021 Ram 2500 Laramie 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Tradesman 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Power Wagon 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Limited Longhorn 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Lone Star 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Laramie Longhorn 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Big Horn 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
  • 2021 Ram 2500 Limited 8 Cyl 6.4L Dual Alternator (Primary); Mitsubishi Unit 180 Amp
Product Details
Condition : NewQuantity Sold : Sold individuallyWarranty : WAI limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE Replacement
Alternator, 180 Amp; Mitsubishi Unit; Primary Alt., New, 6 Cyl 6.7L -
WAI®
Alternator, 180 Amp; Mitsubishi Unit; Primary Alt., New, 6 Cyl 6.7L -
Part Number: WAI11443N
Guaranteed to Fit
$211.49
Vehicle Fitment
  • 2021 Ram 2500 Laramie 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Limited Longhorn 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Tradesman 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Big Horn 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Lone Star 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Limited 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
  • 2021 Ram 2500 Laramie Longhorn 6 Cyl 6.7L 180 Amp; Mitsubishi Unit; Primary Alt.
Product Details
Condition : NewQuantity Sold : Sold individuallyWarranty : WAI limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE Replacement
Alternator, 220 Amp; Denso Unit; Dual Alt., Primary, New, 6 Cyl 6.7L -
WAI®
Alternator, 220 Amp; Denso Unit; Dual Alt., Primary, New, 6 Cyl 6.7L -
Part Number: WAI11379N
Guaranteed to Fit
$247.99
Vehicle Fitment
  • 2021 Ram 2500 Tradesman 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Big Horn 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Laramie 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Lone Star 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Limited 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Laramie Longhorn 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
  • 2021 Ram 2500 Limited Longhorn 6 Cyl 6.7L 220 Amp; Denso Unit; Dual Alt., Primary
Product Details
Condition : NewQuantity Sold : Sold individuallyWarranty : WAI limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE Replacement
Single or Dual Alternator System, With Denso 220 Amp Alternator, Remanufactured, 8 Cyl 6.4L, OE Replacement Series - Upper
Quality-Built®
Single or Dual Alternator System, With Denso 220 Amp Alternator, Remanufactured, 8 Cyl 6.4L, OE Replacement Series - Upper
Part Number: MPA10240
Guaranteed to Fit
$249.99

+ $67.10 Refundable Core Charge

Vehicle Fitment
  • 2021 Ram 2500 Laramie Longhorn 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Laramie 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Big Horn 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Tradesman 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Power Wagon 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Limited Longhorn 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Limited 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
  • 2021 Ram 2500 Lone Star 8 Cyl 6.4L Single or Dual Alternator System, With Denso 220 Amp Alternator
Product Details
Location : UpperCondition : RemanufacturedQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Replacement Series
Dual Alternator System, Remanufactured, 8 Cyl 6.4L, QB Premium - Lower
Quality-Built®
Dual Alternator System, Remanufactured, 8 Cyl 6.4L, QB Premium - Lower
Part Number: MPA10239
Guaranteed to Fit
$302.99

+ $67.10 Refundable Core Charge

Vehicle Fitment
  • 2021 Ram 2500 Laramie Longhorn 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Laramie 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Big Horn 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Tradesman 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Limited 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Power Wagon 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Limited Longhorn 8 Cyl 6.4L Dual Alternator System
  • 2021 Ram 2500 Lone Star 8 Cyl 6.4L Dual Alternator System
Product Details
Location : LowerCondition : RemanufacturedAmperage Output : 220 AmpQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : QB PremiumRecommended Use : OE ReplacementRotation : Clockwise rotation
With Dual Alternators, 220 Amp, Remanufactured, 6 Cyl 6.7L, QB Premium - Lower
Quality-Built®
With Dual Alternators, 220 Amp, Remanufactured, 6 Cyl 6.7L, QB Premium - Lower
Part Number: MPA10234
Guaranteed to Fit
$307.49

+ $67.10 Refundable Core Charge

Vehicle Fitment
  • 2021 Ram 2500 Tradesman 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Big Horn 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Laramie 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Lone Star 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Limited 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Laramie Longhorn 6 Cyl 6.7L With Dual Alternators, 220 Amp
  • 2021 Ram 2500 Limited Longhorn 6 Cyl 6.7L With Dual Alternators, 220 Amp
Product Details
Location : LowerCondition : RemanufacturedAmperage Output : 220 AmpQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : QB PremiumRecommended Use : OE ReplacementRotation : Clockwise rotation
Dual Alternator System, With 180 Amp Alternator, New, 6.4L - Upper
Quality-Built®
Dual Alternator System, With 180 Amp Alternator, New, 6.4L - Upper
Part Number: MPA11477N
Guaranteed to Fit
$419.49
Vehicle Fitment
  • 2021 Ram 2500 Laramie Longhorn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Laramie 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Big Horn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Tradesman 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Power Wagon 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Limited Longhorn 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Limited 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
  • 2021 Ram 2500 Lone Star 8 Cyl 6.4L Dual Alternator System, With 180 Amp Alternator
Product Details
Location : UpperCondition : NewQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including heavy metals including Chromium and Barium, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.

Universal, Performance Replacement DynaForce Series Alternator New
MSD®
Universal, Performance Replacement DynaForce Series Alternator New
Part Number: M465321
Universal Fit
$460.95
Product Details
Condition : NewAmperage Output : 120 AmpPulley Type : V-belt pulleyQuantity Sold : Sold individuallyWarranty : 1-year MSD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions : Holley Brands IRS Tax SaleSeries : DynaForce SeriesRecommended Use : Performance ReplacementProduct Fit : Universal
Universal, Performance Replacement DynaForce Series Alternator New
MSD®
Universal, Performance Replacement DynaForce Series Alternator New
Part Number: M465361
Universal Fit
$482.95
Product Details
Condition : NewAmperage Output : 160 AmpPulley Type : V-belt pulleyQuantity Sold : Sold individuallyWarranty : 1-year MSD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions : Holley Brands IRS Tax SaleSeries : DynaForce SeriesRecommended Use : Performance ReplacementProduct Fit : Universal
Universal, Performance Replacement DynaForce Series Alternator New
MSD®
Universal, Performance Replacement DynaForce Series Alternator New
Part Number: M465362
Universal Fit
$568.95
Product Details
Condition : NewAmperage Output : 160 AmpPulley Type : V-belt pulleyQuantity Sold : Sold individuallyWarranty : 1-year MSD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions : Holley Brands IRS Tax SaleSeries : DynaForce SeriesRecommended Use : Performance ReplacementProduct Fit : Universal
Universal, Performance Replacement Alternator Series Alternator New
Holley®
Universal, Performance Replacement Alternator Series Alternator New
Part Number: H19197303
Universal Fit
$476.95
Product Details
Condition : NewQuantity Sold : Sold individuallyWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions : Holley Brands IRS Tax SaleSpecialty Part : Performance Part by JCWSeries : Alternator SeriesRecommended Use : Performance ReplacementProduct Fit : UniversalColor Finish : Black
Universal, Performance Replacement Alternator Series Alternator New
Holley®
Universal, Performance Replacement Alternator Series Alternator New
Part Number: H19197304
Universal Fit
$575.95
Product Details
Condition : NewQuantity Sold : Sold individuallyWarranty : 90-day Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions : Holley Brands IRS Tax SaleSpecialty Part : Performance Part by JCWSeries : Alternator SeriesRecommended Use : Performance ReplacementProduct Fit : UniversalColor Finish : Polished
Page 1 of 1 | Showing 1 - 14 of 14 results

Shopping for Alternator

Alternator Shopping Info

What Is an Alternator?

The vehicle’s alternator is essentially a built-in charger for the vehicle’s battery. It’s also an onboard generator that powers electrical components while the vehicle is moving. It’s typically found in front of your vehicle’s engine because it draws mechanical energy from the engine through a belt attached to the crankshaft.

It converts mechanical energy into electrical energy and sends it to the components that need it, like the battery.

Why Shop for Alternators at CarParts.com

If you’re looking for high-quality replacement alternators, look no further than CarParts.com! You don’t have to live with a faulty alternator because you can get a replacement without having to break the bank. Why pay for parts at dealership prices when you can get high-quality parts at a more affordable price?

A replacement alternator can cost anywhere around $20 to $300 depending on your vehicle’s make and model. Expect to spend an additional $100 to $200 for labor and installation.

Shopping for parts at CarParts.com is fast and convenient because of our vehicle selector. Simply enter your vehicle’s year, make, and model and we’ll bring up parts that are compatible with your specific model. Our alternators are made with OE specifications and are sourced from the most reputable manufacturers to ensure that they’re built to last and will fit your vehicle perfectly.

All our parts are on hand, so order now and we’ll ship your alternator straight to your doorstep!

Helpful Automotive Resources

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Common Car Problems You Shouldn’t Delay FixingCars and their parts don’t last forever. Sooner or later, some components can wear out, get damaged, or malfunction.
Is an Alternator Rebuild Worth It?
Is an Alternator Rebuild Worth It?Without a functioning alternator a vehicle will only run until the battery dies. So what are your options when you have a bad alternator?
Nissan Frontier Runs After Jump Starting Then Dies
Nissan Frontier Runs After Jump Starting Then DiesThe Nissan Frontier is certainly a tough workhorse that anyone can depend on. But as reliable as it is, the pickup can develop some issues over time.