This is a representative photo of the same part, not the exact unit you'll receive. Since each used part has its own wear, yours may look slightly different.

OEM 170 Amp Alternator for 2017, 2018, 2019, 2020 Cadillac, Chevrolet, & GMC

OEM 170 Amp Alternator for 2017-2020 Cadillac, Chevrolet, & GMC

$ 119 .95

30-DayReturns

6-monthWarranty

100%Money-Back

Condition: Good (B) — minor wear, fully functional

Professionally inspected and tested.

Odometer 109,000 miles at removal

Product Notes Read before buying

This is a used part. For vehicles equipped with a 170 amp alternator (option code KW7).

1 Other Matching Unit Available

Same part, different stock options.

Grade A 138,800 mi

$89.95 View →

See All Other Alternators

Why Buy Used OEM Parts?

Checked & Tested

We check and test every used part before we sell it. It may show some wear, but it works and is ready to install.

Original Equipment

This is the same part your vehicle came with from the factory. It fits and works just like the original — because it is one.

Works Like New

A few marks on the outside don't change what's inside. The part works the way it should.

Big Savings

Pay 50–80% less than buying new. Same factory part, much lower price.

Not sure? Ask Wrenchy — Your Parts Assistant.

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Vehicle Fitment Guide

This part fits the following vehicles:

Cadillac 2 models(tapclick to expand)(tapclick to hide)

Escalade 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Base	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Base	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Luxury	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Luxury	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Platinum	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Platinum	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Premium	SUV	2017	V8 6.2L FLEX	4WD \| Automatic
Premium	SUV	2017	V8 6.2L	4WD \| Automatic
Premium Luxury	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Premium Luxury	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
		2018 - 2019

Escalade ESV 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Base	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Base	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Luxury	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Luxury	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Platinum	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Platinum	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
Premium	SUV	2017 - 2020	V8 6.2L	4WD \| Automatic
Premium	SUV	2017 - 2020	V8 6.2L FLEX	4WD \| Automatic
Premium Luxury	SUV	2017 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Premium Luxury	SUV	2017 - 2020	V8 6.2L	RWD/4WD \| Automatic
		2018 - 2019

Chevrolet 4 models(tapclick to expand)(tapclick to hide)

Camaro 2017 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
LS	Convertible	2017	L4 2.0L Turbo	RWD \| Manual
LS	Coupe	2017	L4 2.0L Turbo	RWD \| Manual
LS	Convertible	2017	V6 3.6L	RWD \| Manual
LS	Coupe	2017	V6 3.6L	RWD \| Manual
LT	Convertible	2017	L4 2.0L Turbo	RWD \| Automatic & Manual
LT	Coupe	2017	L4 2.0L Turbo	RWD \| Automatic & Manual
LT	Convertible	2017	V6 3.6L	RWD \| Automatic & Manual
LT	Coupe	2017	V6 3.6L	RWD \| Automatic & Manual
RS	Coupe	2017	V6 3.6L	RWD \| Automatic
SS	Convertible	2017	V8 6.2L	RWD \| Automatic & Manual
SS	Coupe	2017	V8 6.2L	RWD \| Automatic & Manual
ZL1	Convertible	2017	V8 6.2L Supercharged	RWD \| Automatic & Manual
ZL1	Coupe	2017	V8 6.2L Supercharged	RWD \| Automatic & Manual

Silverado 1500 2017-2018 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Custom	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
Custom	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
Custom	Extended Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
High Country	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
High Country	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
High Country	Crew Cab Pickup	2017 - 2018	V8 6.2L	RWD/4WD \| Automatic
LS	Crew Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LS	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LS	Standard Cab Pickup	2017 - 2018	V6 4.3L	RWD \| Automatic
LS	Standard Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LS	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LS	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LS	Extended Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LS	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LS	Standard Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LS	Standard Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	Crew Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LT	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LT	Standard Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
LT	Crew Cab Pickup	2017 - 2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	RWD/4WD \| Automatic
LT	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LT	Extended Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LT	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	Extended Cab Pickup	2017 - 2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	RWD/4WD \| Automatic
LT	Standard Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LT	Standard Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	Standard Cab Pickup	2017 - 2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	RWD/4WD \| Automatic
LTZ	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LTZ	Extended Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
LTZ	Crew Cab Pickup	2017 - 2018	V8 6.2L	RWD/4WD \| Automatic
LTZ	Extended Cab Pickup	2017 - 2018	V8 6.2L	RWD/4WD \| Automatic
SSV	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
SSV	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
WT	Crew Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
WT	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
WT	Standard Cab Pickup	2017 - 2018	V6 4.3L FLEX	RWD/4WD \| Automatic
WT	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
WT	Crew Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
WT	Extended Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
WT	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
WT	Standard Cab Pickup	2017 - 2018	V8 5.3L FLEX	RWD/4WD \| Automatic
WT	Standard Cab Pickup	2017 - 2018	V8 5.3L	RWD/4WD \| Automatic
Custom	Crew Cab Pickup	2018	V6 4.3L FLEX	RWD/4WD \| Automatic
Custom	Crew Cab Pickup	2018	V8 5.3L FLEX	RWD/4WD \| Automatic
Custom	Crew Cab Pickup	2018	V8 5.3L	RWD/4WD \| Automatic
LTZ	Crew Cab Pickup	2018	V8 5.3L FLEX	RWD/4WD \| Automatic
LTZ	Crew Cab Pickup	2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	RWD/4WD \| Automatic
LTZ	Extended Cab Pickup	2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	RWD/4WD \| Automatic
LTZ	Extended Cab Pickup	2018	V8 5.3L FLEX	RWD/4WD \| Automatic

Suburban 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
HD	SUV	2017 - 2018	V8 6.0L FLEX	AWD \| Automatic
LS	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
LS	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
LT	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
Premier	SUV	2017 - 2018	V8 5.3L FLEX	AWD \| Automatic
Premier	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
Premier	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
HD	SUV	2018	V8 6.0L	AWD \| Automatic
Premier	SUV	2018	V8 5.3L	AWD \| Automatic
HD	SUV	2019	V8 6.0L	4WD \| Automatic
HD	SUV	2019	V8 6.0L FLEX	4WD \| Automatic
Premier	SUV	2019 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Premier	SUV	2019 - 2020	V8 6.2L	RWD/4WD \| Automatic

Tahoe 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
LS	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
LS	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
LT	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
LT	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
Police	SUV	2017 - 2020	V8 5.3L FLEX	RWD \| Automatic
PPV	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
Premier	SUV	2017 - 2019	V8 5.3L FLEX	AWD \| Automatic
Premier	SUV	2017 - 2020	V8 5.3L FLEX	RWD/4WD \| Automatic
Premier	SUV	2017 - 2020	V8 5.3L	RWD/4WD \| Automatic
SSV	SUV	2017 - 2020	V8 5.3L FLEX	4WD \| Automatic
Z71	SUV	2017	V8 5.3L FLEX	AWD \| Automatic
Midnight Edition	SUV	2018	V8 5.3L	AWD \| Automatic
Midnight Edition	SUV	2018	V8 5.3L FLEX	AWD \| Automatic
Premier	SUV	2018 - 2019	V8 5.3L	AWD \| Automatic
Premier	SUV	2018 - 2020	V8 6.2L FLEX	RWD/4WD \| Automatic
Premier	SUV	2018 - 2020	V8 6.2L	RWD/4WD \| Automatic

GMC 3 models(tapclick to expand)(tapclick to hide)

Sierra 1500 2017-2018 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Base	Crew Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
Base	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
Base	Standard Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
Base	Crew Cab Pickup	2017 - 2018	V8 5.3L	-
Base	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
Base	Extended Cab Pickup	2017 - 2018	V8 5.3L	-
Base	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
Base	Standard Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
Base	Standard Cab Pickup	2017 - 2018	V8 5.3L	-
Denali	Crew Cab Pickup	2017 - 2018	V8 5.3L	-
Denali	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
Denali	Crew Cab Pickup	2017 - 2018	V8 6.2L	-
SLE	Crew Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
SLE	Extended Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
SLE	Standard Cab Pickup	2017 - 2018	V6 4.3L FLEX	-
SLE	Crew Cab Pickup	2017 - 2018	V8 5.3L	-
SLE	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
SLE	Extended Cab Pickup	2017 - 2018	V8 5.3L	-
SLE	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
SLE	Standard Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
SLE	Standard Cab Pickup	2017 - 2018	V8 5.3L	-
SLT	Crew Cab Pickup	2017 - 2018	V8 5.3L	-
SLT	Crew Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
SLT	Crew Cab Pickup	2017 - 2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	-
SLT	Extended Cab Pickup	2017 - 2018	V8 5.3L	-
SLT	Extended Cab Pickup	2017 - 2018	V8 5.3L MILD HYBRID EV-GAS (MHEV)	-
SLT	Extended Cab Pickup	2017 - 2018	V8 5.3L FLEX	-
SLT	Crew Cab Pickup	2017 - 2018	V8 6.2L	-
SLT	Extended Cab Pickup	2017 - 2018	V8 6.2L	-

Applies to every configuration above: RWD/4WD | Automatic

Yukon 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Denali	SUV	2017 - 2020	V8 6.2L	-
Denali	SUV	2017 - 2020	V8 6.2L FLEX	-
SLE	SUV	2017 - 2020	V8 5.3L FLEX	-
SLE	SUV	2017 - 2020	V8 5.3L	-
SLT	SUV	2017 - 2020	V8 5.3L FLEX	-
SLT	SUV	2017 - 2020	V8 5.3L	-
SLT	SUV	2019 - 2020	V8 6.2L FLEX	-
SLT	SUV	2019 - 2020	V8 6.2L	-
		2018

Applies to every configuration above: RWD/4WD | Automatic

Yukon XL 2017-2020 (tapclick to expand)(tapclick to hide)

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SubmodelSUB- MODEL	Body Style	Years	Engine	Attributes
Denali	SUV	2017 - 2020	V8 6.2L	-
Denali	SUV	2017 - 2020	V8 6.2L FLEX	-
SLE	SUV	2017 - 2020	V8 5.3L	-
SLE	SUV	2017 - 2020	V8 5.3L FLEX	-
SLT	SUV	2017 - 2020	V8 5.3L	-
SLT	SUV	2017 - 2020	V8 5.3L FLEX	-
SLT	SUV	2019 - 2020	V8 6.2L FLEX	-
SLT	SUV	2019 - 2020	V8 6.2L	-
		2018

Applies to every configuration above: RWD/4WD | Automatic

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies, in plain English.

Shipping & Handling

Standard shipping: 3-7 business days via UPS Ground
Parts are carefully packaged to prevent damage during transit

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

If your part fails within 6 months, we will send a replacement
Refunds are only issued if we cannot provide a suitable replacement
Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

Defective parts: We will replace the part or issue a refund at our discretion
Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
Return shipping: We cover return shipping as part of our 100% money-back guarantee
Parts must be returned in original packaging and unmodified condition
Poorly packaged returns that arrive damaged will not be credited

Damaged in Shipping?

If your part arrives damaged:

Stop immediately — do not install the part
Keep all original packaging and boxes
Take clear photos of the damage and packaging
Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Expert Guides

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This guide covers the common 150 Amp alternator for many Chevrolet, GMC, and Cadillac vehicles, explaining why your voltage gauge moves and how to tell if the alternator is truly bad.

Read Full Guide →

Related Trouble Codes (OBD-II)

2 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

P0562

System Voltage Low Causes and Fixes

2014-2019 GMC Sierra 1500

P0562

Low Voltage Causes and Fixes

2014-2019 Chevrolet Silverado 1500

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.

Miscellaneous Information

OEM Part Numbers:
Other: 84143540

Fits Years: 2017 2018 2019 2020

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This part ships with a 6-month warranty. If it doesn't fit or stops working, we replace or refund — no hassle.

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★★★★★ 4.9 1,451 verified reviews