Powermaster Battery Isolator

A battery isolator will let you completely discharge one battery without discharging the starting battery.

Advanced Filter

E-News Signup
Receive news of the latest specials & deals from
4 Wheel Parts.

Enter Email:
Shipping Information
Most orders are shipped within 1-2 business days.

Shipping Policy
Check Your Order Status
Shipping Locations
5 Fully-stocked distribution centers across the nation.

Shipping Locations
Easy Returns
Buy with confidence thanks to our no-hassle returns.

Return Policy

Shop Safely Online

We are dedicated to delivering a safe online shopping experience.

We Proudly Accept

Finance with Car Care One ®
4 Wheel Parts now offers Google checkout for all purchases.
Gift Cards Buy Gift Cards Now

Dealer Inquiries

Find 4 Wheel Parts on:
- Facebook
- Twitter
- YouTube
About Us
Useful Information
Toll-Free Sales & Support
Call (877) 474-4821
for orders and help with
any product we offer.
Phone Sales (PT):
Monday - Friday: 5 a.m. - 8 p.m.
Saturday: 6 a.m. - 5 p.m.
Sunday: 7:30 a.m. - 5 p.m.

Customer Service (PT):
Monday - Friday: 5 a.m. - 6 p.m.
Saturday: Closed
Sunday: Closed

Exclusions

Offer valid only on orders placed at 4WheelParts.com or by phone at 1-877-695-7804
Offer valid on orders with a sub-total of $98 or more
Offer valid only on items that can be shipped via UPS; truck freight items are excluded
Offer limited to stocked items and items that can be back-ordered
Offer limited to standard shipping to U.S. addresses
Offer not valid on tire purchases
Offer not valid on return shipments, prior purchases, and gift card purchases
Offer not redeemable for cash
Offer excludes oversized shipping charges for certain items; applicable oversized shipping charges will be shown at checkout