SIERRA MerCruiser Alpha One Gen II Bearing Repair Kit – 18-1404

Description

SIERRA MerCruiser Alpha One Gen II Bearing Repair Kit – 18-1404

Gearcase bearing repair kit for later MerCruiser Alpha One Gen II sterndrives. The kit consolidates several commonly replaced lower-unit bearings plus a lower-unit seal kit for a more complete gearcase rebuild.

• Complete bearing/service kit for Alpha One Gen II gearcases
• Includes Sierra 18-1155 reverse-gear ball bearing
• Includes Sierra 18-1117 pinion needle bearing
• Includes Sierra 18-1157 forward-gear inner bearing plus 18-1158 carrier bearing
• Includes Sierra 18-2646-1 lower-unit seal kit

For marine engine and drive parts, fitment can vary by serial number, gear ratio, casting, or prior service history. Compare the original part number and physical configuration before installation; replace related gaskets, seals, races or hardware when their condition requires it.

Specifications

• Manufacturer: Sierra
• Part Number: 18-1404
• Application: MerCruiser Alpha One Gen II gearcases, commonly 1998 and newer; verify serial number and gear ratio.

Interchange / OEM References

• MerCruiser 31-803096T1