Deal
$50 OFF
A case of 6 (1 qt) Pennzoil SAE 30 Motor Oil is available for $49.82 at Keller-Heartt. No minimum order amount is required, so you can buy just this case if it fits your needs.
Est. ~$50 on $100
Keller-Heartt promotional codes, October 2026
4 working codes · 51% average savings
Keller-Heartt coupon codes
Deal
$122 OFF
You can purchase a case of 12 (1 QT) Diesel 911 Fuel Supplement for $122 from Keller-Heartt. There are no minimums to worry about, making it easy to get what you want.
Est. ~$100 on $100
Deal
$452 OFF
Keller-Heartt offers a 55-gallon drum of Oil Eater Cleaner Degreaser for $452. There’s no minimum order requirement, allowing you to order just this item when needed.
Est. ~$100 on $100
Deal
$112 OFF
For $112, a case of 12 (1 QT) Diesel Fuel Supplement is available at Keller-Heartt. You can confirm your choice at checkout, as there are no minimums on this offer.
Est. ~$100 on $100