Welcome Guest

SHOP BY CATEGORY

SHOP BY BRAND

SHOP BY VEHICLE

SPECIAL DEALS

Clearance
Limited Time Promotions
Suspension Kits

NEW ITEMS

RESOURCES

Order Status
4X4 Resource Center
Installations & Services
How She 4 Wheels
Affirm Financing
Careers

Choose from 40+ 4WP stores

Check nearby stores

Sales Support 877-474-4821

Settings
My Wishlist
My Garage
Log in

Amount (in dollars)

MY ACCOUNT

Settings
My Wishlist
My Garage
Log in

FIND A STORE

SUPPORT

CART 0

877-260-5452 Call Our Stateside Experts!

ARB
Bestop
BFGoodrich
Bilstein
Mickey Thompson
FOX
FUEL
G2 Axle & Gear
Method Wheels
Morimoto
Pro Comp
Rough Country
Smittybilt
Toyo Tires
See all brands

Shop By Model
Bronco HQ
Jeep Wrangler JL
Jeep Gladiator
Jeep Wrangler JK
Ford F-150
Toyota Tacoma

Clearance
Limited Time Promotions
Suspension Kits

NEW ITEMS

Order Status
4X4 Resource Center
Installations & Services
How She 4 Wheels
Affirm Financing
Careers

Select a New Vehicle

Tell Us What You Think

Please enter your feedback in the box below.

Or Cancel

Thank you! Your feedback has been submitted.

If you would like a response to your feedback, please enter your email address below. We will never use your email address for any other purpose. (Optional).

Or Cancel

Home
On Sale

Direct Fit 120 Amperes 120 Amperes

REFINE BY:

Your Selection

Amps
120 Amperes
Fitment
Direct Fit

Brand

Omix-Ada (1)
Powermaster (2)

Fitment

Universal Fit (3)

Amps

60 Amperes (3)
63 Amperes (2)
65 Amperes (3)
70 Amperes (1)
74 Amperes (1)
75 Amperes (10)
80 Amperes (2)
81 Amperes (1)
85 Amperes (2)
90 Amperes (7)
View More
.9 (1)
1.45 (3)
1.6 (16)
1.70 (1)
100 Amperes (22)
105 Amperes (39)
106 Amperes (2)
110 Amperes (2)
115 Amperes (3)
117 Amperes (8)
124 Amperes (1)
130 Amperes (18)
136 Amperes (3)
140 Amperes (82)
145 Amperes (2)
150 Amperes (26)
160 Amperes (1)
170 Amperes (6)
2 (13)
2.9 (2)
2.90 (2)
200 Amperes (51)
225 Amperes (6)
255 Amperes (2)
3.6 (2)
300 Amperes (2)
4 (1)
4.06 (1)
5.50 (1)

Finish

Chrome (1)
Natural (2)

Wiring

Direct Plug in (2)
One-Wire (1)

Part Type

Alternator (3)

Price Range

$200 to $299 (3)

View By Product GroupSwitch to View Product Groups
View By Individual ItemsSwitch to View Products

Direct Fit 120 Amperes On Sale

2 Product Groups

Switch to View Products

SORT BY

Powermaster Street Alternators

Powermaster Alternators

From $229.99

Available in Natural or Polished finish
Bolt on installation
Uses same belt as the factory
Delivers up to 50% more output at idle
California Residents: WARNING

From $229.99

4.6 4.6 (459)

Omix-ADA Alternators

Omix-Ada Alternators

From $287.99

Replacement Alternator
California Residents: WARNING

From $287.99

3 Products

Switch to View Product Groups

SORT BY

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

Choose Your Secure Checkout Method

Email Address

Password

Remember me

Reset Password

Create An Account

First Name *:

Last Name *:

Email *:

Password *:

Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Powermaster GM 17si Alternator (Chrome) - 17290

Part Number: POW17290

Powermaster GM 17si Alternator (Chrome) - 17290

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Chrome
120 Amp
One wire
Includes 1V pulley
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$263.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Powermaster GM 17si Alternator (Chrome) - 17290

Part #: POW17290

$263.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Chrome
120 Amp
One wire
Includes 1V pulley
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

Choose Your Secure Checkout Method

Email Address

Password

Remember me

Reset Password

Create An Account

First Name *:

Last Name *:

Email *:

Password *:

Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Powermaster GM 17si Alternator (Natural) - 7288

Part Number: POW7288

Powermaster GM 17si Alternator (Natural) - 7288

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Natural
120 Amp
Includes 1V pulley
California Residents: WARNING

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$229.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Powermaster GM 17si Alternator (Natural) - 7288

Part #: POW7288

$229.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Natural
120 Amp
Includes 1V pulley
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

Choose Your Secure Checkout Method

Email Address

Password

Remember me

Reset Password

Create An Account

First Name *:

Last Name *:

Email *:

Password *:

Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Omix-ADA Alternator (Natural) - 17225.22

Part Number: OAI17225.22

Omix-ADA Alternator (Natural) - 17225.22

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships today ?

Fitment: Direct Fit
120 amps
Serpentine belt pulley included
California Residents: WARNING

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$287.99

$281.39

In-Stock Ships today ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Omix-ADA Alternator (Natural) - 17225.22

Part #: OAI17225.22

$287.99

$281.39

In-Stock Ships today ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships today ?

Fitment: Direct Fit
120 amps
Serpentine belt pulley included
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!

SHOP 4WP's HUGE SELECTION

Item added to Cart.

VIEW CART

Direct Fit 120 Amperes 120 Amperes

Direct Fit 120 Amperes On Sale

Powermaster Street Alternators

Omix-ADA Alternators

Powermaster GM 17si Alternator (Chrome) - 17290

How to Get it

$263.99

Powermaster GM 17si Alternator (Chrome) - 17290

$263.99

How to Get it

Powermaster GM 17si Alternator (Natural) - 7288

How to Get it

$229.99

Powermaster GM 17si Alternator (Natural) - 7288

$229.99

How to Get it

Omix-ADA Alternator (Natural) - 17225.22

How to Get it

$287.99

$281.39

Omix-ADA Alternator (Natural) - 17225.22

$287.99

$281.39

How to Get it

Shop Safety Online

Shop Safety Online

We Proudly Accept

Financing Available

Help

Stores & Events

Resources

Sales & Support

Phone Sales (PT)

Customer Service (PT)

Careers

Follow Us

Direct Fit 120 Amperes 120 Amperes

Direct Fit 120 Amperes On Sale

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$263.99

$263.99

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$229.99

$229.99

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$287.99

$281.39

$287.99

$281.39

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

Join our mailing list to receive information on new products, special events, discounts and more!

Shop Safety Online

We Proudly Accept