Description

Mercury MerCruiser Quicksilver 4000327, commonly listed as 10-4000327, is a genuine OEM screw identified by current Mercury dealer sources as SCREW (M6 x 14). Because this part is used across a very wide range of Mercury and MerCruiser applications, the SKU and factory size specification are the strongest source of truth for the title and description.

Key Features

• Genuine Mercury Marine OEM part number 4000327 / 10-4000327.
• Current Mercury dealer references identify it as SCREW (M6 x 14).
• Current dealer listing shows GTIN 745061142091.
• Current shipping-spec listing shows approximate packaged size of 3.50 x 3.00 x 0.50 in and weight of 0.02 lb.

Engine Compatibility

Current where-used references show 4000327 across a broad range of Mercury and MerCruiser applications, including Zeus 3000, older small outboards such as 6 HP, 45 HP, 50 HP, and 100 HP, many 2.5L and 3.0L outboard families, and larger MerCruiser gasoline inboard packages including 496 MAG, 8.1L Inboard, and 8.1L Towsport. The strongest supportable fitment is by exact serial-number-based parts diagram rather than by model family alone, because this screw appears in many different assemblies.

Serial Number Fitment Notice

Verify fitment by exact engine or drive serial number and the correct parts diagram before ordering. With a hardware item like 4000327, the size may be correct while the intended mounting location differs, so serial-based confirmation is the safest way to match it properly. That caution is supported by the very 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 4000327 is an OEM hardware item used across many Mercury and MerCruiser systems, replacing worn original fasteners during related service can help avoid repeat labor from compromised threads or weakened hardware. This replacement guidance is a practical service inference based on its documented use as a Mercury OEM fastener.

Installation Notes

Confirm the exact application in the correct Mercury parts breakdown before installation. Current sources consistently identify this part by its Mercury number and dimensions, M6 x 14, so matching both the SKU and the assembly callout is the right approach during service.

Alternate/Superseded Part Numbers

Current sources reviewed show 4000327 and 10-4000327 as the active Mercury and dealer numbering formats for this same OEM screw.

Parts Desk Insight

This is a good example of why the SKU should lead the listing. “Screw” is too generic to match reliably, but 4000327 / 10-4000327 gives you the exact Mercury hardware size and the right serial-number-based lookup path across a lot of different Mercury and MerCruiser products.

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