Acdelco gm Genuine Parts 20881337 Alternator

Acdelco gm Genuine Parts 20881337 Alternator

Q: Product description says, “ Discontinued by Manufacturer.” Is this a reman?

The reman part number is 334-2742A. Anyhow, the AC Delco web site is “www.acdelco.com” and use the “PARTS NUMBER LOOKUP” (found mid-bottom right side, picture box), to find the right alternator.

Q: Will this fit 2013 gmc k1500 sierra 5.3

This alternator WILL fit your GMC K1500 Sierra 5.3. Performs excellent!

Q: Will this work on a 2012 gmc sierra 2500hd 6.0

This alternator will fit your 2012 GMC Sierrra 2500 6.0. Thank you!

Q: Voltage regulator how much are they. Do they come separately

The voltage regulator and brush assembly IS replaceable separately... it unscrews from the back of the alternator once you remove the cover... It is a Bosch innovation that GM uses on some alternators. Voltage regulator and brush assembly P/N is below: https://smile.amazon.com/Total-Power-Parts-F-00M-145-314-F-00M-145-328/dp/B09TPDLW12/ref=sr_1_5?crid=1OSQYYU6UXDMA&keywords=F00M145314&qid=1663640870&s=automotive&sprefix=f00m145314%2Cautomotive%2C141&sr=1-5

4.3/5

Product ID: 306757762

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📏Precise dimensions

🔧100% new replacement

⚙️Durable components

Frequently Bought Together

ACDelco GM Genuine Parts 20881337 Alternator

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Description

🔋 Power Up Your Ride with Confidence!

PERFECT FIT - Designed as an exact replacement for seamless installation.
OEM ASSURANCE - GM-recommended part ensures peace of mind.
DURABILITY TESTED - Components rigorously tested for long-lasting performance.
UNMATCHED QUALITY - Engineered to meet GM OE standards for reliability.
LIGHTWEIGHT DESIGN - Weighs only 6.6 kg for easy handling.

The ACDelco Genuine Parts 20881337 Alternator is a newly manufactured, high-quality replacement designed specifically for GM vehicles. It meets original specifications for durability and performance, ensuring a perfect fit and reliable operation.

Specifications

Manufacturer	ACDelco
Brand	GM GENUINE PARTS
Model	Alternator
Product Dimensions	22.1 x 19.56 x 17.78 cm; 6.6 kg
Item model number	20881337
Exterior	Machined
Manufacturer Part Number	20881337
OEM Part Number	20881337
Item Weight	6.6 Kilograms

Have a Question? See What Others Asked

Product description says, “ Discontinued by Manufacturer.” Is this a reman?

Will this fit 2013 gmc k1500 sierra 5.3

Will this work on a 2012 gmc sierra 2500hd 6.0

Voltage regulator how much are they. Do they come separately

Reviews

4.3

All from verified purchases

C**Y

Working :)

Perfect item. (Tahoe 2012 5.8)

1.05.2025

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TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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