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2010 Chevrolet Colorado
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60-Day Returns
Lifetime Replacement
2010 Chevrolet Colorado

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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Alternator, 8 Cyl., 5.3L Engine -
Quality-Built®
Alternator, 8 Cyl., 5.3L Engine -
Part Number: MPA8302603N
Guaranteed to Fit
$170.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L
Product Details
Condition : NewAmperage Output : 145 AmpPulley Type : SerpentineNumberof Grooves : 6 GroovesQuantity Sold : Sold individuallyWarranty : Lifetime Quality-Built limited warrantyRegulator Style : InternalSeries : QB SupremeVoltage : 12 VRecommended Use : OE ReplacementRotation : Clockwise
Alternator, 8 Cyl., 5.3L Engine -
Quality-Built®
Alternator, 8 Cyl., 5.3L Engine -
Part Number: MPA8302603
Guaranteed to Fit
$113.99

+ $58.56 Refundable Core Charge

Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L
Product Details
Condition : RemanufacturedAmperage Output : 145 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.

Replaces OE Number : 25869451, 8302, 15905872, 1585Recommended Use : OE ReplacementIncludes : With complimentary 24/7 Quality-Built (QB) Roadside Assistance Program (RAP)Series : QB PremiumInterchange Part Number : REPC330141, 8206605N, 25869451, 8302, 15905872, 1585
Alternator, 8 Cyl., 5.3L Engine, DR44 Type, 145 Amps -
Remy®
Alternator, 8 Cyl., 5.3L Engine, DR44 Type, 145 Amps -
Part Number: RMY91017
Guaranteed to Fit
$208.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L DR44 Type; 145 Amps
Product Details
Notes : 12 Voltage; Internal Voltage Regulator Type; Internal Fan TypeCondition : NewAmperage Output : 145 AmpQuantity Sold : Sold individuallyWarranty : 2-year Remy 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.

Includes : PulleyRecommended Use : OE ReplacementRotation : Clockwise rotation
Alternator, 8 Cyl., 5.3L Engine, 145 Amp -
Denso®
Alternator, 8 Cyl., 5.3L Engine, 145 Amp -
Part Number: NP2105382
Guaranteed to Fit
$169.99

+ $41.48 Refundable Core Charge

Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L 145 Amp
Product Details
Condition : RemanufacturedAmperage Output : 145 AmpQuantity Sold : Sold individuallyWarranty : 1-year Denso 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, 8 Cyl., 5.3L Engine, Delco Unit, DR37 Type -
WAI®
Alternator, 8 Cyl., 5.3L Engine, Delco Unit, DR37 Type -
Part Number: WAI8550N
Guaranteed to Fit
$172.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L Delco Unit, DR37 Type
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, 5/4 Cyl., 3.7/2.9L Engine, Pulley 6S, Clock 5:00, Regulator Ir, Unit Mfr Va, Family Va-If, Amps 125, Fan If -
AC Delco®
Alternator, 5/4 Cyl., 3.7/2.9L Engine, Pulley 6S, Clock 5:00, Regulator Ir, Unit Mfr Va, Family Va-If, Amps 125, Fan If -
Part Number: AC3342994
Guaranteed to Fit
$179.49

+ $54.90 Refundable Core Charge

Vehicle Fitment
  • 2010 Chevrolet Colorado WT 5 Cyl 3.7L Pulley 6S; Clock 5:00; Regulator Ir; Unit Mfr Va; Family Va-If; Amps 125; Fan If
  • 2010 Chevrolet Colorado LT 5 Cyl 3.7L Pulley 6S; Clock 5:00; Regulator Ir; Unit Mfr Va; Family Va-If; Amps 125; Fan If
  • 2010 Chevrolet Colorado WT 4 Cyl 2.9L Pulley 6S; Clock 5:00; Regulator Ir; Unit Mfr Va; Family Va-If; Amps 125; Fan If
  • 2010 Chevrolet Colorado LT 4 Cyl 2.9L Pulley 6S; Clock 5:00; Regulator Ir; Unit Mfr Va; Family Va-If; Amps 125; Fan If
Product Details
Notes : (6) Pulley Groove Quantity; 12 VDC Voltage; Serpentine Pulley Belt Type; Internal Regulator and Fan TypeCondition : RemanufacturedAmperage Output : 125 AmpQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco 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 : Professional SeriesRecommended Use : OE ReplacementRotation : Clockwise
Alternator, 8 Cyl., 5.3L Engine, DR44 Type, 145 Amps -
BBB Industries®
Alternator, 8 Cyl., 5.3L Engine, DR44 Type, 145 Amps -
Part Number: BBBN8302P79
Guaranteed to Fit
$179.49
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L DR44 Type; 145 Amps
Product Details
Notes : 12V; 6 kw Power Rating; 2-1/2 in. OD Pulley; Air Cooling Method; Internal Fan Type; Internal Regulator Type; Negative Polarity; OE Manufacturer - Delco/Delphi; DR44G Series; Serpentine Pulley Belt TypeCondition : NewAmperage Output : 145 AmpPulley Type : Conventional pulleyQuantity Sold : Sold individuallyWarranty : BBB Industries 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
Alternator, 5/4 Cyl., 3.7/2.9L Engine -
WAI®
Alternator, 5/4 Cyl., 3.7/2.9L Engine -
Part Number: WAI11148N
Guaranteed to Fit
$155.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 4 Cyl 2.9L
  • 2010 Chevrolet Colorado WT 5 Cyl 3.7L
  • 2010 Chevrolet Colorado LT 5 Cyl 3.7L
  • 2010 Chevrolet Colorado WT 4 Cyl 2.9L
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, 5/4 Cyl., 3.7/2.9L Engine, 120 Amp -
Valeo®
Alternator, 5/4 Cyl., 3.7/2.9L Engine, 120 Amp -
Part Number: VLE849028
Guaranteed to Fit
$262.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 4 Cyl 2.9L 120 Amp
  • 2010 Chevrolet Colorado WT 5 Cyl 3.7L 120 Amp
  • 2010 Chevrolet Colorado LT 5 Cyl 3.7L 120 Amp
  • 2010 Chevrolet Colorado WT 4 Cyl 2.9L 120 Amp
Product Details
Condition : NewAmperage Output : 70 AmpPulley Type : SerpentineNumberof Grooves : 6 GroovesQuantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile Valeo 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.

Includes : With PulleySeries : Valeo OE ReplacementRecommended Use : OE Replacement
Alternator, 5/4 Cyl., 3.7/2.9L Engine, 125 Amp, OE Equivalent -
Denso®
Alternator, 5/4 Cyl., 3.7/2.9L Engine, 125 Amp, OE Equivalent -
Part Number: NP2116023
Guaranteed to Fit
$313.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 4 Cyl 2.9L 125 Amp; OE Equivalent
  • 2010 Chevrolet Colorado WT 5 Cyl 3.7L 125 Amp; OE Equivalent
  • 2010 Chevrolet Colorado LT 5 Cyl 3.7L 125 Amp; OE Equivalent
  • 2010 Chevrolet Colorado WT 4 Cyl 2.9L 125 Amp; OE Equivalent
Product Details
Condition : NewAmperage Output : 125 AmpQuantity Sold : Sold individuallyWarranty : 1-year Denso 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.

Includes : With PulleyReplaces OE Number : Repl. OE No. 15884348, 15946765, 25925948, 8158843480, 8159467650, 8259259480Recommended Use : OE ReplacementRotation : Clockwise rotation
Alternator, 8 Cyl., 5.3L Engine -
AC Delco®
Alternator, 8 Cyl., 5.3L Engine -
Part Number: AC3342747A
Guaranteed to Fit
$158.99

+ $43.92 Refundable Core Charge

Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L
Product Details
Condition : RemanufacturedAmperage Output : 145 AmpQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco 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 : Professional SeriesRecommended Use : OE Replacement
Alternator, 8 Cyl., 5.3L Engine, Labeled 20989651, 4 Wire -
AC Delco®
Alternator, 8 Cyl., 5.3L Engine, Labeled 20989651, 4 Wire -
Part Number: AC22781131
Guaranteed to Fit
$265.49
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L Labeled 20989651, 4 Wire
Product Details
Notes : Delco Series DR44G, type 100; Used to service 105 amp, K68 usage; For 145 amp usage, see 15263858 labeled 22781131Condition : NewAmperage Output : 105 AmpPulley Type : SerpentineNumberof Grooves : 6 GroovesQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco 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.

Replaces OE Number : Repl. OE No. 22781131, 15847291, 20989651Recommended Use : OE ReplacementRotation : Clockwise rotationIncludes : With pulley and internal fanSeries : GM Original Equipment Series
Alternator, 5/4 Cyl., 3.7/2.9L Engine -
Quality-Built®
Alternator, 5/4 Cyl., 3.7/2.9L Engine -
Part Number: MPA11148
Guaranteed to Fit
$39.49

+ $65.88 Refundable Core Charge

Vehicle Fitment
  • 2010 Chevrolet Colorado WT 5 Cyl 3.7L
  • 2010 Chevrolet Colorado LT 5 Cyl 3.7L
  • 2010 Chevrolet Colorado WT 4 Cyl 2.9L
  • 2010 Chevrolet Colorado LT 4 Cyl 2.9L
Product Details
Condition : RemanufacturedAmperage Output : 125 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.

Includes : With internal fanSeries : QB PremiumRecommended Use : OE ReplacementRotation : Clockwise rotation
Alternator, 8 Cyl., 5.3L Engine, 145 Amp, Delco, DR44 Type, Standard Unit -
WAI®
Alternator, 8 Cyl., 5.3L Engine, 145 Amp, Delco, DR44 Type, Standard Unit -
Part Number: WAI8302N-6G2
Guaranteed to Fit
$158.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L 145 Amp; Delco; DR44 Type; Standard Unit
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, 8 Cyl., 5.3L Engine, Labeled 20881337, 2 Wire -
AC Delco®
Alternator, 8 Cyl., 5.3L Engine, Labeled 20881337, 2 Wire -
Part Number: AC20881337
Guaranteed to Fit
$257.99
Vehicle Fitment
  • 2010 Chevrolet Colorado LT 8 Cyl 5.3L Labeled 20881337, 2 Wire
Product Details
Condition : NewAmperage Output : 145 AmpQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco 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 : GM Original Equipment SeriesReplaces OE Number : Repl. OE No. 20881337Recommended Use : OE Replacement
Page 1 of 2 | Showing 1 - 15 of 23 results

Top Rated Products

Gm Original Equipment Series Alternator, New
$347.99( Review)
Great price on time delivery perfect fit couldn’t be happier
Michael M.
VERIFIED PURCHASER
Gm Original Equipment Series Alternator, New
$353.49( Review)
It was exactly what was advertised and arrived on time and in good shape. Price was gSee More
Dan N.
VERIFIED PURCHASER
Gm Original Equipment Series Alternator, New 8, 4.6
$227.99( Review)
Good price on part,quick shipping,excellent seller.
Gary S.
VERIFIED PURCHASER

Product Questions & Answers

AC Delco Alternator, 8 Cyl., 5.3L Engine, Labeled 20881337, 2 Wire -
$257.99
Q:is this a # d r 37 ?
Jack H.
A:BEST ANSWERHello Jack, This is a 2 Wire, 145 Amp(KG3) Alternator.
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >

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Common Car Problems You Shouldn’t Delay FixingThe severity of these problems varies from part to part, but which common car troubles do you need to address immediately? There are issues that you must fix as soon as possible to continue driving safely and avoid permanently damaging your vehicle. Bad Alternator
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Is an Alternator Rebuild Worth It?When it comes to dealing with a damaged alternator, there are generally three ways you can go about it: rebuild it, replace it, or get a remanufactured alternator. Alternator Rebuild
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