U-Joint O-Ring for MerCruiser Alpha One Gen II | 25-25439

U-Joint O-Ring for MerCruiser Alpha One Gen II sterndrives. It forms a static seal at the specified U-joint assembly location. Use product code REC25-25439 to identify the offered product. It cross-references to MerCruiser 25-25439.

Selection warning: Two O-ring alternatives share this assembly position and no interchange rule is available. Match exact product code REC25-25439.

Product specifications

Key points

• Product code: REC25-25439
• MerCruiser cross-reference: 25-25439
• Confirmed application: Alpha One Gen II, serial number 0L100040 and later
• Assembly area: U-joint and seal-carrier assembly

Installation and selection context

The u-joint o-ring under product code REC25-25439 belongs to the u-joint and seal-carrier assembly. Match the exact product code because the two O-ring alternatives are not proven interchangeable.

Compatibility and fitment

The confirmed application for U-Joint O-Ring under product code REC25-25439 is the drive and serial scope shown above. The product may have other applications where the same product code and cross-reference are independently confirmed.

What to check before ordering

Confirm the u-joint o-ring under product code REC25-25439 against the component being replaced. Match the exact product code because the two O-ring alternatives are not proven interchangeable.

Part numbers and cross-references

OEM references are provided for identification. A cross-reference does not mean the item is supplied as a genuine OEM product.

Before ordering

1. Confirm the sterndrive model and full serial number.
2. Check product code REC25-25439 and every recorded MerCruiser cross-reference.
3. Apply the ratio, side, material or serial-break instruction where one is stated.
4. Compare the replacement part with the component being removed.
5. Contact TMP Global with the drive serial and photographs if any identifier differs.

Frequently asked questions

What does REC25-25439 replace?

It cross-references to MerCruiser 25-25439.

Does REC25-25439 fit every MerCruiser Alpha One Gen II drive?

The confirmed application for REC25-25439 covered here is the MerCruiser Alpha One Gen II upper driveshaft housing for serial number 0L100040 and later. For an earlier drive or another assembly, match the product code, OEM reference and technical data before ordering.

Where can I see this part in the exploded diagram assembly?

View the MerCruiser Alpha One Gen II upper driveshaft housing exploded diagram and locate reference 38.