Heating and Cooling› Thermostats, Housings and Fillers
PRESTONE
PRS RAD HTR STP LEAK 6X16.5OZ
SKU: P03I AS660Y-6
Beginner — under 30 min
Description
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | PRESTONE |
| Part Number | P03I AS660Y-6 |
Videos
Prestone® Triple Seal Protection™ with DuPont™ Kevlar® Resin
How to Use "Prestone Stop Leaks" Liquid in a Leaking Radiator
How to do complete coolant flush/How to use prestone radiator flush and cleaner/flush Muddy coolant
Prestone Head Gasket & Engine Block Repair
Prestone headgasket stop leak fix?
Prestone Antifreeze+Coolant | Prestone Answers | Avoiding Costly Repairs
Prestone Maintenance101 English
Prestone Coolant Antifreeze - How it Works | Does it Work in Any Vehicle?
Prestone Power Steering + Stop Leak TESTED!
Prestone Head Gasket & Engine Block Repair
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy