Jackmark will be closed for Christmas from 12:00 PM on Wednesday, 24th December 2025, and will reopen at 8 AM on Monday, 5th January 2026. We want to take this opportunity to thank you for your continued support and loyalty throughout the year. We wish all our customers, both old and new, a Merry Christmas and a Happy New Year!

Products

Yellow connector and lead on schematic background

Jackmark Engineering design & manufacture rugged electrical test connection systems for a wide range of industry sectors. Customer driven specific requirements are developed alongside our highly experienced project and design engineers. We supply high quality, robust test equipment to wiring harness manufacturers, engine manufacturing centers & vehicle production factories.

Five red and black test connectors on top of design drawing
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Engine Test
Five red and black test connectors on top of design drawing
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Wiring Harness Test
Five red and black test connectors on top of design drawing
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Rugged Connectors
Five red and black test connectors on top of design drawing
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Trackside Equipment
Five red and black test connectors on top of design drawing
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ECU SWDL
Five red and black test connectors on top of design drawing
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Interiors
Five red and black test connectors on top of design drawing
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EV & Battery
Five red and black test connectors on top of design drawing
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Accessories