★★★★★ 5
Strong product
Great quality
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Reviewed in the United States on March 11, 2026
Wilwood Caliper-GN6R-L/H-Black Ano (.80 Thk Pad) 1.75/1.38/1.38in Pistons 1.38in Disc
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Wilwood Caliper-GN6R-L/H-Black Ano (.80 Thk Pad) 1.75/1.38/1.38in Pistons 1.38in DiscGrand National GN6R forged aluminum six piston radial mount calipers bring current state of the art design, materials, and manufacturing technology to this long standing icon in the Wilwood caliper line. With a High strength forged aluminum body in either hard anodized or Quick Silver nickel plate finish and Compatible with rotors from 1. 25 to 1. 38 thickness and diameters from 12. 19 to 13. 06. Two body widths are available for use with . 80 (20,3)
Quick Dispatch:
Your Wilwood Caliper-GN6R-L/H-Black Ano (.80 Thk Pad) 1.75/1.38/1.38in Pistons 1.38in Disc orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 1760 reviews
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Product Reviews
★★★★★ 1
Snapped bolt
I tried putting it on my n55 from a m235i and it did not fit properly. I was in a rush to try to put it on and thought it was on properly and I thought it did. And I snapped the bolt because the bolt because it was not aligned after I looked at harder I do not recommend for a n55. do not get this cheaply made pos. I recommend getting it from fcp euro where parts will actually fit and not fail.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
May not fit correctly or is difficult to fit on.
Would not advise buying. It wouldn’t fit with the o ring nor with the old one, it would only go in with no o ring. So I had to put back my old hinge and o ring. Edit: I had to add coolant to the O ring, along with somewhat forcing/prying it in in order to get it to fit flush.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Works 100% on my f30 n55
No leaks made with good material you can use everything they send it will work
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Reviewed in the United States on May 26, 2026
★★★★★ 5
It’s the right part and it’s not defective
It fit and works great
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Reviewed in the United States on February 3, 2026
