Mercury Quicksilver Clamp 12078

Mercury Quicksilver Clamp 12078

A genuine Quicksilver OEM clamp for Mercury and MerCruiser assemblies, catalogued as 54-12078. This is a direct-fit factory replacement not an aftermarket substitute ensuring the correct material, finish, and holding force for the original assembly location.

Key Features

• Genuine Quicksilver OEM clamp
• Part number: 12078 / 54-12078
• Factory-spec material and finish
• Direct replacement for the original assembly position

Fitment & Application

Use this clamp where the Mercury or MerCruiser parts diagram specifies part number 12078 or 54-12078. Fitment can vary by engine model, drive type, and serial number range always confirm against your specific parts diagram before ordering.

When to Replace

Replace when the clamp is corroded, deformed, cracked, or has been removed from a critical assembly during service and cannot be safely reused. Clamps in cooling, fuel, and exhaust circuits should be inspected at every service interval.

Installation Notes

Verify the clamp diameter, band width, and material against the diagram position before installation. Follow the Mercury service manual for torque specifications and any reuse restrictions. Do not substitute a generic clamp in a position that specifies an OEM part.

Related Products

• Mercury MerCruiser Nylon Hose Clamp 54-415825 Nylon hose clamp for Mercury / MerCruiser hose assemblies
• Mercury MerCruiser Quicksilver Clamps (4) 41582T7 Four-pack clamp set for Mercury / MerCruiser applications
• Mercury MerCruiser Quicksilver Clamp Worm Gear 815504232 Worm gear hose clamp, 2.50″ diameter
• Mercury MerCruiser Quicksilver Clamp 8M0090424 Additional OEM clamp for Mercury / MerCruiser assemblies

Parts Desk Insights

Best use case: This clamp is the right choice when the Mercury or MerCruiser parts diagram calls out 54-12078 specifically and an OEM-spec fit is required. Generic hose clamps are often close in size but differ in band width, material, and end-stop design in fuel, cooling, or exhaust positions, that difference matters. Order by diagram position and confirm the part number matches before installation.