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Ships within 48 hours · Estimated delivery Oct 13 - Oct 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ko-Ken 15770 5/8 Sq. Dr. Universal Joint 5/8 Square Length 88mm Hole typeGeneral Information Brand Ko Ken Tools Part Number 15770 Product Type Socket Adaptors Packaging Bulk Country of Origin Japan UPC 4991644405411 California Residents Proposition 65 Warning Physical Characteristics Length 88mm Weight 0. 42 kg 0. 93 lb Details Wrench Type Socket Type Universal Joint Features Universal Joint Hole Type Length : 88mm Output Size: 5 8" Input Drive Size : 5 8" Made In Japan

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4.3 ★★★★★
Based on 892 reviews
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Product Reviews
★★★★★ 5
worked great at fair price
works fine on my 1994 volvo penta 3.0 GL the main gasket was wrong, but my 3.0 GL does not have a gasket, the other parts appear to be universal
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2025
★★★★★ 4
Good fit
Worked well with no problems.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Great replacement kit
Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows
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Reviewed in the United States on August 26, 2024
★★★★★ 3
Just ok
Qualities OK, but for Marine applications might want better
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Reviewed in the United States on August 3, 2025
★★★★★ 5
Great quality
Just as described.
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Reviewed in the United States on July 22, 2025
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