Description
SIERRA Mercury/Force 9.9-25 HP Lower Gearcase Seal Kit – 18-2624
Lower gearcase seal kit for selected Mercury/Mariner/Chrysler/Force 9.9-25 HP lower units using OEM 26-85090A2. 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: selected Mercury/Mariner/Chrysler/Force 9.9-25 HP lower units using OEM 26-85090A2
- Function: Provides the lower-unit oil seals, O-rings and related sealing pieces required for gearcase reseal service.
- Component: Lower gearcase seal kit
- Typical horsepower family: 9.9-25 HP
- Interchange: Chrysler/Force/US Marine: 26-85090A2; GLM: 87808; Mallory: 9-74205; Mercury Marine: 26-85090A2; Sears: 26-85090A2
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
- Typical horsepower family: 9.9-25 HP
- OEM kit: 26-85090A2
Interchange / Replaces
- Chrysler/Force/US Marine: 26-85090A2
- GLM: 87808
- Mallory: 9-74205
- Mercury Marine: 26-85090A2
- Sears: 26-85090A2
Related Products
- Cross-sell / related: SIE-18-9650-2
- Relationship notes: 18-9650-2 is Sierra high-performance marine gear lubricant for refilling a compatible gearcase after reseal service.


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