Mercury outboard spare part 99080M (THERMOSTAT). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 30A, 25C (THRU PROP. EXHAUST), 40 (TWIN CARB) (W/OIL INJECTION), 60 2 CYL, 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 99080M (THERMOSTAT), documented in 20 exploded diagram location(s), across the 2-STROKE-CARB series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 000101 THRU 023895201View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 250101 THRU 253861201View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 300101 THRU 318173201View
Mercury 2-STROKE-CARB25c-thru-prop-exhaust695 550101 THRU 555959201View
Mercury 2-STROKE-CARB25c-thru-prop-exhaustARCHIVE CAT 12536201View
Mercury 2-STROKE-CARB30a689 000366 THRU 022058201View
Mercury 2-STROKE-CARB30a689 022059 THRU 689 230100 M201View
Mercury 2-STROKE-CARB30a689 100251 THRU 105324201View
Mercury 2-STROKE-CARB30a689 105325 THRU 689 530100 ML201View
Mercury 2-STROKE-CARB30a689 301911 THRU 321376201View
Mercury 2-STROKE-CARB30a689 321377 THRU 689 250100 E201View
Mercury 2-STROKE-CARB30a689 401216 THRU 411946201View
Mercury 2-STROKE-CARB30a689 411947 THRU 689 550100 EL201View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 015001 THRU 09785866201View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 150001 THRU 09785866201View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 350001 THRU 09785866201View
Mercury 2-STROKE-CARB40-twin-carb-w-oil-injection6E9 450001 THRU 09785866201View
Mercury 2-STROKE-CARB40b-thru-prop-exhaustE 676 B100461 THRU B102785201View
Mercury 2-STROKE-CARB60-2-cylE 675 00101 THRU E 675 001170311View
Mercury 2-STROKE-CARB60-2-cylEL 675 30101 THRU EL 675 304180311View

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Appears in diagrams of these models

  • 30A
  • 25C (THRU PROP. EXHAUST)
  • 40 (TWIN CARB) (W/OIL INJECTION)
  • 60 2 CYL
  • 40B (THRU PROP. EXHAUST)