Description

Mercury MerCruiser Quicksilver 14070, commonly listed as 10-14070, is a genuine OEM screw sized .250-20 x .625. Current Mercury dealer references show it as an active factory hardware part used across a wide range of MerCruiser gasoline inboard, sterndrive, and ski applications rather than as a one-model-only fastener.

Key Features

• Genuine Mercury Marine OEM part number 14070 / 10-14070.
• Officially listed as SCREW (.250-20 x .625).
• Current dealer listing shows GTIN 745061111141.
• Current packaged shipping specs are approximately 0.02 lb, 1.38 in x 1.38 in x 0.75 in.

Engine Compatibility

Current where-used references show 14070 across a broad range of MerCruiser GM-based V8 applications, including families such as 300 Tempest, 320 EFI, 350 MAG, 350 MAG MPI, Black Scorpion, Scorpion 350/377, 5.7L MPI, 6.2L MPI / MX 6.2L, 7.4L MPI, and multiple 350/357/383 crate and performance packages. The strongest supportable fitment is by exact serial-number-based parts diagram, because this screw appears in many different MerCruiser assemblies.

Serial Number Fitment Notice

Verify fitment by exact engine serial number and the correct parts diagram before ordering. With a hardware item like 14070, the dimensions may be correct while the intended assembly location differs, so serial-based confirmation is the safest way to match it properly. This fitment guidance is supported by the broad current where-used coverage shown by Mercury dealers.

When This Part Needs Replacement

Replace this screw when the original is corroded, stripped, damaged, missing, or no longer holds torque correctly in the assembly being serviced. Because 14070 is a small OEM fastener used across multiple MerCruiser systems, replacing worn original hardware during related service can help avoid repeat labor from seized or compromised screws. This service guidance is a practical inference based on its documented use as an OEM service fastener.

Installation Notes

Confirm the exact application in the correct Mercury MerCruiser parts breakdown before installation. Current references identify this part specifically by its thread and length, .250-20 x .625, so matching both the part number and the assembly callout is the right approach during service.

Alternate/Superseded Part Numbers

Current sources reviewed show 14070 and 10-14070 as the active Mercury / dealer numbering formats for this same OEM screw.

Parts Desk Insight

This is a good example of a part where the SKU matters more than the plain-language name. “Screw” is too generic to match reliably, but 14070 / 10-14070 gives you the exact Mercury hardware size and the correct serial-number-based lookup path across a lot of different MerCruiser engines.

Shipping: Ships same or next day for fast Canada wide shipping.