45-881942 Mercury MerCruiser Drive shaft | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver X-Long Driveshaft - Part Number: 45-881942

A genuine Quicksilver 25 inch X-long driveshaft for selected Mercury and Mariner 3.0L V6 outboard gearcases. This driveshaft transfers power vertically through the lower unit to the gearset and is designed for dual upper bearing 3.0L applications where 45-881942 is specified.

⚙️ Key Features

• Genuine Quicksilver OEM driveshaft

• Correct Mercury part number 45-881942

• 25 inch X-long shaft application

• Used on selected Mercury / Mariner 3.0L V6 outboards

• Dual upper bearing style driveshaft application

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 45-881942 → Supersedes 45-858712

• 858712 earlier OEM reference

OEM / Related Numbers:

• 45-881942

• 881942

• 45-858712

• 858712

• 92-216-04-25

Aftermarket / Verified Equivalents:

• SEI Marine: 92-216-04-25

• No additional aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Mercury and Mariner 3.0L V6 X-long lower-unit driveshaft applications

Typically suits:

• Engine models:

• Mercury / Mariner 200HP 3.0L EFI, X-long driveshaft applications - serial 0G960500 to 1B504988

• Mercury / Mariner 225HP 3.0L EFI, X-long driveshaft applications - serial 0G960500 to 1B504988

• Mercury / Mariner 225HP 3.0L DFI / DTS, X-long driveshaft applications - serial 0T599000 to 1B504988

• Mercury / Mariner 250HP 3.0L EFI, X-long driveshaft applications - serial 0G960500 to 1B504988

• Mercury / Mariner 250XS 3.0L, X-long driveshaft applications - serial 0T651945 and up where the 25 inch dual upper bearing driveshaft is specified

• Mercury / Mariner 300HP 3.0L, X-long driveshaft applications where 45-881942 is specified

• Mercury / Mariner 200HP - 300HP 3.0L gearcase applications using the 25 inch dual upper bearing driveshaft

• HP Range: commonly used across 200HP - 300HP 3.0L V6 applications

• Engine Type: Mercury / Mariner 3.0L V6 outboard

• Shaft Length: 25 inch X-long

• Gearcase Type: Dual upper bearing driveshaft lower unit

🔌 Function

The driveshaft carries engine torque from the crankshaft down through the lower unit to the gearset, allowing the propeller shaft and propeller to be driven under load.

Common signs of failure:

• Lower-unit vibration or noise under load

• Damaged or worn driveshaft splines

• Water pump drive issues from worn shaft surfaces

• Gearcase binding or abnormal bearing wear

• Shaft corrosion, pitting or seal surface damage

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging