Mercury outboard spare part 81564M (HOUSING OIL SEAL (UPPER)). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30A, 20C (THRU PROP. EXHAUST), 25C (THRU PROP. EXHAUST), 40 (TWIN CARB) (W/OIL INJECTION), 40B (THRU PROP. EXHAUST). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 81564M (HOUSING OIL SEAL (UPPER)), documented in 23 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 010112 UP121View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 250820 UP121View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 306543 UP121View
Mercury 2-STROKE-CARB20c-thru-prop-exhaust6A9 550694 UP121View
Mercury 2-STROKE-CARB20c-thru-prop-exhaustARCHIVE CAT 96333121View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 000101 THRU 023895131View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 250101 THRU 253861131View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 300101 THRU 318173131View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 550101 THRU 555959131View
Mercury 2-STROKE-CARB25c-thru-prop-exhaustARCHIVE CAT 12536131View
Mercury 2-STROKE-CARB30a689 000366 THRU 022058131View
Mercury 2-STROKE-CARB30a689 022059 THRU 689 230100 M131View
Mercury 2-STROKE-CARB30a689 100251 THRU 105324131View
Mercury 2-STROKE-CARB30a689 105325 THRU 689 530100 ML131View
Mercury 2-STROKE-CARB30a689 301911 THRU 321376131View
Mercury 2-STROKE-CARB30a689 321377 THRU 689 250100 E131View
Mercury 2-STROKE-CARB30a689 401216 THRU 411946131View
Mercury 2-STROKE-CARB30a689 411947 THRU 689 550100 EL131View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 015001 THRU 09785866131View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 150001 THRU 09785866131View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 350001 THRU 09785866131View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 450001 THRU 09785866131View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustE 676 B100461 THRU B102785131View

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Appears in diagrams of these models

  • 30A
  • 20C (THRU PROP. EXHAUST)
  • 25C (THRU PROP. EXHAUST)
  • 40 (TWIN CARB) (W/OIL INJECTION)
  • 40B (THRU PROP. EXHAUST)