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Wilwood Caliper-GP310 Black Rear 1.25in Pistons .25in Disc

Marsoni M251S
Sale price$136.00
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Get it in 3 business days with 1 day shipping. Friday, May 29
Wilwood Caliper-GP310 Black Rear 1.25in Pistons .25in DiscWilwood's GP310 Rear motorcycle disc brake caliper has been designed and engineered for use on 1984 present Harley Davidson Motorcycles. Built around a 4 piston, high performance powerhouse, this billet aluminum caliper brings distinctive, bolt on styling: Bracket mounted calipers with a standard 3. 50" mount spacing are available for all most models (except Springer and 4 speed FL models).
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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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4.8 ★★★★★
Based on 1438 reviews
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Miguel Quezada
San Leandro, US
★★★★★ 5
Great price
Great product
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Reviewed in the United States on May 23, 2026
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Verified Purchase
Alan C
San Leandro, US
★★★★★ 5
Give me a try I don’t think it’ll let you down
This has to be the best oil I ever used. I noticed the difference as soon as I put the oil in and started the engine.! I will continue to use this oil for as long as I own, the vehicle and any future cars I may own or drive! I read 75% of the reviews before purchasing this oil . The only thing I’ve noticed. Anyone who gave it below a five star was because they received used motor oil.. in my opinion I think it was returned after somebody filled it up with their used motor oil and returning it for their money back somehow Amazon put it back on the shelf for resale. So take it for what it’s worth but it’s really great oil.
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Reviewed in the United States on March 24, 2026
M
Verified Purchase
miguel vazquez
Battle Creek, US
★★★★★ 5
Great oil
Won’t use another brand now that I’ve used these guys. Phenomenal brand, noticeable difference in the engine.
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Reviewed in the United States on April 2, 2026
C
Verified Purchase
Carlos G
Draper, US
★★★★★ 5
Recommended
Excellent quality, a synthetic mixture that I will no longer use another brand for my car. I removed a little noise that I had
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Reviewed in the United States on December 30, 2025
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Verified Purchase
beachboy
Birmingham, US
★★★★★ 5
Buy it !
I run this in our 2010 PT Cruiser Classic, you can hear the difference, pricey but worth it, will buy again.
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Reviewed in the United States on May 9, 2026

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