About Longitude Marine
Longitude Marine in St Clair Shores focuses on marine diesel parts and repair for boaters across Metro Detroit and southeast Michigan. Its technicians work on engines, air conditioning, generators and head systems, with a focus on Yanmar, Westerbeke, Cummins, Universal and Marine Air equipment. Parts can be ordered online, and owners asking about parts or service should have the engine manufacturer, model, serial number and spec numbers ready before they call. Rated 4.7 from 13 Google reviews, 12 of them five stars.
Services and details
Repairs boats or engines
Yes
No information yet on outboard motors, inboards and sterndrives, factory-certified engine service, personal watercraft, pontoon boats, fiberglass and gelcoat repair, winterizing and spring start-up, shrink wrapping, boat storage, mobile or dockside service, pickup, delivery or launch, canvas and upholstery, detailing. The website did not say; call and ask.
Contact
- (586) 601-8677
- 23710 Harper Ave, St Clair Shores, MI 48080
- Website
- View on Google Maps
Hours
- Monday
- 9AM-2PM
- Tuesday
- 9AM-2PM
- Wednesday
- 9AM-2PM
- Thursday
- 9AM-2PM
- Friday
- 9AM-2PM
- Saturday
- Closed
- Sunday
- Closed
Listing compiled from public sources on 2026-10-04. Report a correction or request removal. Back to boat repair shops in St Clair Shores.