SIERRA MerCruiser Alpha One Gen II Lower Gearcase Seal Kit – 18-2646-1

Description

SIERRA MerCruiser Alpha One Gen II Lower Gearcase Seal Kit – 18-2646-1

Lower gearcase seal kit for MerCruiser Alpha One Gen II lower units using OEM 26-816575A1 / 26-816575A3. It is intended as an application-specific replacement for the original marine component and is cross-referenced by the OEM/aftermarket numbers listed below.

• Application: MerCruiser Alpha One Gen II lower units using OEM 26-816575A1 / 26-816575A3
• Function: Provides the lower-unit sealing components required for prop-shaft, drive-shaft and related gearcase reseal service.
• Component: Lower gearcase seal kit
• Drive family: Alpha One Gen II
• Interchange: GLM: 87511; Mallory: 9-74206; Mercruiser Stern Drive: 26-816575A1, 26-816575A3

Confirm the engine or sterndrive model, serial range and original part number before installation. During service, inspect adjacent seals, fasteners, hoses and mating surfaces so a related fault is not carried into the repaired assembly.

Specifications

• Component: Lower gearcase seal kit
• Drive family: Alpha One Gen II

Interchange / Replaces

• GLM: 87511
• Mallory: 9-74206
• Mercruiser Stern Drive: 26-816575A1, 26-816575A3

Related Products

• Cross-sell / related: SIE-18-2644 | EMP-26-00834 | SIE-18-9650-2
• Relationship notes: EMP 26-00834 is a verified direct alternative. 18-2644 is the matching Sierra upper seal kit; 18-9650-2 is gear lubricant.