RADIATOR STOP LEAK
RADIATOR STOP LEAK
in 41 offers
The lowest price for Penrite Radiator Stop Leak 375ml - ADRSL375 right now is $12.00 at 999autoshop.com.au, compared across 26 retailers.
The all-time low was $9.55 on 30 Mar 2024 — today's price is 26% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 1 Oct 2026.
Penrite Radiator Stop Leak 375ml - ADRSL375
RADIATOR STOP LEAK
RADIATOR STOP LEAK
Last updated at 01/10/2026 06:06:29
Penrite Radiator Stop Leak 375ML
Penrite Radiator Stop Leak 375ML - Pack of 3
Penrite Radiator Stop Leak
Delivery between 6–12 Oct $9.70
Penrite Radiator Stop Leak Additive 375mL ADRSL375
Delivery between 2–15 Oct $10.95
Penrite Radiator Stop Leak 375ML
Delivery between 7–9 Oct $15
ADRSL375 Filter by Filtersplus
Penrite Radiator Stop Leak 375mL - ADRSL375
Penrite Radiator Stop Leak 375mL
Free delivery between 6–9 Oct
Penrite Radiator Stop Leak 375mL - ADRSL375
Delivery $15
2 X Penrite Radiator Stop Leak 375mL - ADRSL375 Twin Pack
Delivery $15
originally posted on supercheapauto.com.au
I put most of the bottle in my Vs commodore Ute, as I had a nick on one of the fins on my new alloy radiator . I covered the fin with jb weld but it didn’t quite stop it. With in 10 mins with leaving the car running with heater on full blast the leak stopped after putting this stuff in and I’m wrapped
originally posted on repco.co.nz
Had a small leak out of a rubber seal on the water system on my SV6 Commodore engine. To replace the seal was expensive due to the labour content involved. Added Penrite stop leak to the cooling system and problem solved, (for $19 as opposed to $100's of $$$$).
originally posted on repco.com.au
Used this product to repair a leaking radiator on a Mazda Tribute. Cost to repair was more than what the vehicle was worth. Used the Penrite Radiator Stop Leak and it fixed the leak. Continued to drive the car for 2 years with no problems.
| Density at 20°C, kg/L | 1.02 |
| Viscosity (DIN/EN/ISO 2431, 4mm) | 13 - 17 s |
Penrite Radiator Stop Leak 375ML
Penrite Radiator Stop Leak 375ML - Pack of 3
Penrite Radiator Stop Leak
Delivery between 6–12 Oct $9.70
Penrite Radiator Stop Leak Additive 375mL ADRSL375
Delivery between 2–15 Oct $10.95
Penrite Radiator Stop Leak 375ML
Delivery between 7–9 Oct $15
I put most of the bottle in my Vs commodore Ute, as I had a nick on one of the fins on my new alloy radiator . I covered the fin with jb weld but it didn’t quite stop it. With in 10 mins with leaving the car running with heater on full blast the leak stopped after putting this stuff in and I’m wrapped
Had a small leak out of a rubber seal on the water system on my SV6 Commodore engine. To replace the seal was expensive due to the labour content involved. Added Penrite stop leak to the cooling system and problem solved, (for $19 as opposed to $100's of $$$$).
Used this product to repair a leaking radiator on a Mazda Tribute. Cost to repair was more than what the vehicle was worth. Used the Penrite Radiator Stop Leak and it fixed the leak. Continued to drive the car for 2 years with no problems.
I bought this 2 weeks ago excellent sealed the problem quick response easy explanation to uderstand. Great price ta
Stops the leak almost immediately. Not a permanent fix obviously but keeps you on the road till I can get to a mechanic.
My 20 yrs old Ignis was leaking coolant like incontinent old lady. so gave this Stop Leak a have go. results is tightening sphincter muscle like. it really stop leak for now. Hopefuly it stop leak forever
Good product. Prompt service helpful friendly dtaff
Super like really work my ford territory radiator leak stopped.. super heavy mechanic told me to replace radiator but this lil bottle $20 saved me $400 thaxn supercheap
After one week it rejuvenated seals on BMW 320iNo more leak from rear of engine
I bought this about a week or so ago, and in all honesty... it didnt work because about 3 days after i put it through my car, the radiator cracked. Im guessing they arent linked in any way its just coincidence but the guy did tell me it would stop a small leak. But oh well, it is what it is
| Density at 20°C, kg/L | 1.02 |
| Viscosity (DIN/EN/ISO 2431, 4mm) | 13 - 17 s |
