Mike Howlin Motors Limited | Favorite About Mike Howlin Motors Limited is a MOT Service Center in Johnston. Call us to book in for an MOT test or for more details. MOT ClassesClass 4 MOT TestPhotos Map No Records FoundSorry, no records were found. Please adjust your search criteria and try again. Google Map Not LoadedSorry, unable to load Google Maps API. Driving Walking Bicycling Public Transport Miles Kilometers Reviews Claim Listing Address The Forge Johnston Haverfordwest, SA62 3HB Contact Details Main Phone: 01437899355 Automotive Garage Category: MOT Test Station