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🚀 Elevate your GM engine’s performance with Prothane’s ultimate radiator isolators!
Prothane 7-1711-BL Black Urethane Radiator Isolators are designed specifically for GM small block engines with factory radiators. Made from durable polyurethane, this set of four isolators reduces engine vibrations, protects your radiator, and ensures a precise fit for pickup trucks. Trusted by professionals and rated 4.4 stars, these isolators deliver reliable performance and longevity.
| ASIN | B000NSN3GC |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #282,731 in Automotive ( See Top 100 in Automotive ) #497 in Automotive Replacement Engine Radiators |
| Brand | Prothane |
| Brand Name | Prothane |
| Compatible with Vehicle Type | Pickup Truck |
| Customer Reviews | 4.4 out of 5 stars 322 Reviews |
| Global Trade Identification Number | 00636169135132 |
| Included Components | Bushing Kits |
| Item Type Name | Bushing Kits |
| Item Weight | 0.27 g |
| Manufacturer | PROTHANE |
| Manufacturer Part Number | 7-1711-BL |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material | Polyurethane |
| Material Type | Polyurethane |
| Model Number | 7-1711-BL |
| Number of Items | 1 |
| UPC | 636169135132 |
| Unit Count | 4 Count |
| Vehicle Service Type | Pickup Truck |
M**C
Great product
For my 73 c10 perfect. Much nicer than what was in there.
L**S
Exactly as described. Packaged well and functions perfectly.
Exactly as described. Packaged well and functions perfectly.
A**R
Five Stars
great product, didnt fit my application perfect, BUT it wasnt built for it. :)
A**R
Fitment for my 69 el camino was to big
had to cut off about a half inch on one side of both ends
P**L
Bushings were very close to original shape and size and good quality
Very solid rubbery feel and they fit the lower part of aftermarket radiator perfectly. Top bushings needed some easy trimming.
J**S
Great quality, but only worked in lower location
Quality is great, typical of Prothane. My only reason for a lower rating is that all of the pieces included Prothane 7-1711-BL only work in the lower mounting locations on my '87. They are not shaped correctly for the top brackets. I can probably modify them, but for now I just kept the stock ones that were in 'adequate' condition. I believe the stepped ones shown in PROTHANE 7-1711 listing are what I need, but I didn't order those as I do not want red. Honestly surprised that they have the same base part number, but are not the same shape and fitment.
A**M
No more loose radiator.
Fit my radiator perfectly. 72 El Camino.
T**M
Good
works perfect
A**R
Good Quality
These are well made and a perfect fit
A**R
Worked on a 72 Nova
With a little trimming it worked perfectly on a 1972 Chevrolet Nova with a 307 small block. Radiator fit perfectly.
T**R
Not really the best fit.
I never seem to have good luck with any of the poly radiator isolators. I think some of it has to do with if you still have the original style brass copper radiator as opposed to the newer plastic aluminum style. But these clearly didn't fit without trimming the uppers. After doing some research, it seems there is a difference between a/c and non a/c upper steel mounts. I have non a/c, so the upper mounts on an 81-87 are smaller which I believe is why it required trimming. If you have a/c it looks like these might work as they mount higher giving more clearance to the rad support. I have an 87 R10.
J**M
Kind of rough
These don’t really fit in the stock rad support or upper brackets all that well. They’re also obviously poured into a mold instead of injected like a factory rubber part which leaves them with some porosity and rough edges. My package was also missing one out of four pieces, so in all it was not really worth the the attempted upgrade. I’m just going to use stock rubber replacements.
S**H
They fit the 71 camaro exactly
Good fit
Trustpilot
2 weeks ago
1 week ago