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Description
BSA Pre-Unit Primary Cover Gasket 42-7507 (1)New English Made BSA Pre Unit Singles & Twins Primary Gasket. Stop annoying oil links by installing a new primary cover gasket. This primary cover gasket is compatible with models that feature the swinging arm frame. Replaces BSA part number 42 7507. Fits BSA pre unit twins (A7, A10, Goldenflash, Super Rocket, etc) from 1954 1963. Also fits BSA singles (B31, B32, B33, etc) from 1954 1957. Please refer to your parts book to ensure the best fitment.
New English Made BSA Pre-Unit Singles & Twins Primary Gasket. Stop annoying oil links by installing a new primary cover gasket. This primary cover gasket is compatible with models that feature the swinging arm frame. Replaces BSA part number 42-7507. Fits BSA pre-unit twins (A7, A10, Goldenflash, Super Rocket, etc) from 1954-1963. Also fits BSA singles (B31, B32, B33, etc) from 1954-1957. Please refer to your parts book to ensure the best fitment.
•Made in England
•O.E.M Part number is 42-7507
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Exchange/Return Notes
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4.3 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Beautiful and comfortable
Size: 12 Wide, Color: Black
Beautiful and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Really nice
Size: 10.5 Wide, Color: Black
My husband loves these shoes. He has a flat food and said they still fit nice.
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Good Quality
Size: 11, Color: White
Nice looking shoe. Slides on easy. My only feedback would be I wish the toe box was a bit wider and the heel a bit higher. It's a good shoe overall. I would buy again.
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Reviewed in the United States on April 10, 2025
★★★★★ 5
Fit
Size: 11.5 Wide, Color: Cognac
Comfortable and affordable
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Reviewed in the United States on May 14, 2026
★★★★★ 3
Classy pair that look great but don’t last
Size: 12, Color: Black, Size: 12, Color: Black
Great shoe. Slip on is easy and the shoes are comfortable and classy.
Ten months later and the bottom has holes and didn’t last.
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Reviewed in the United States on March 30, 2025