Mercury - O-Ring - Quicksilver - 25-25439

Genuine Mercury / Quicksilver O-Ring. Part number 25-25439.

Genuine Quicksilver O-ring seal for gear housing assemblies. This elastomer component provides a critical seal in the driveshaft gear housing to prevent fluid leakage and maintain proper lubrication.

Direct replacement part for Mercury MerCruiser inboard engines across multiple displacement and carburetor configurations.

Fits:

• 2.5L GM 153 I/L4 (S/N 0B531854–0C856558)
• 2.5L (OFFSHORE) (S/N 0G610239–0T999519)
• 3.0L GM 181 I/L4 (S/N 0B450801–0C856558)
• 5.0L (2 BBL.) GM 305 V-8 (S/N 0B774445–0F600999)
• 5.0LX (4 BBL.) GM 305 V-8 (S/N 0B773740–0F600999)
• 5.7L GM 350 V-8 (S/N 0B525982–0F600999)
• 5.7L (2 BBL.) GM 350 V-8 (S/N 0F601000–0K001526)
• 5.7LX (4 BBL) GM 350 V-8 (S/N 0F601000–0K001526)
• 50 3 CYL (S/N 6428681–0B122929; 7208333–0A721307; 9385911–9469199)
• 60 3 CYL (S/N 6428681–0B122929; 7208333–0A721307; 9385911–9469199)
• 90, 900 6 CYL (S/N 5594657–6436122; 7147088–7208847; 8071020 & Up)
• 105 JET (S/N 0D082000–0G760299)
• 110 Jet (2.5L) (S/N 1B690542–1B974227)
• 115 6 CYL (S/N 5600967–6436122; 7147988–7208847; 8067340 & Up)
• 115 HP V6 CYL (2.5L) (S/N 0G960500–0T178499)
• 120 GM 153 I/L4 (S/N 6229718–0B531853)
• 120/140 (S/N 4893635–6225576)
• 135 HP V6 CYL (2.5L) (S/N 0G760300–1B737495)
• 140 GM 181 I/L4 (S/N 6229718–0B450800)
• 140 JET (S/N 0D082000–0T178499)
• 150 HP PRO MAX/SUPER MAG (S/N 0D935000–0G610049)
• 150 HP V6 CYL (2.5L) (S/N 0G760300–1B580029)
• 150/200 HP PRO MAX/SUPER MAG (S/N 0G610050–0G856999)
• 165 (S/N 4890460 & Up)
• 175 HP V6 CYL (2.5L) (S/N 0T178500–1B508457)
• 200 (2 BBL.) GM 305 V-8 (S/N 0B525982–0B774444; 6218462–0B525981)
• 200 EFI PRO MAX/SUPER MAG (S/N 0D935000–0G610079)
• 200 HP XS 6 CYL (2.5L) ROS (S/N 1E050852–1E053876)
• 225 EFI PRO MAX/SUPER MAG (S/N 0G610104–0T429939)
• 225-S (S/N 3856268–4200499)
• 228 (S/N 4898730–6225576)
• 228 (4 BBL.) GM 305 V-8 (S/N 5170009–6218461)
• 228 MIE (4 BBL.) GM 305 V-8 (S/N 5170009–5907057)
• 230 (4 BBL.) GM 305 V-8 (S/N 0B525982–0B773739; 6218462–0B525981)
• 233 (S/N 4200500 & Up)
• 260 (S/N 4898730–6225576)
• 260 (4 BBL.) GM 350 V-8 (S/N 0B525982–0B773739; 4908850–6218461)
• 350 MAG. ALPHA (4 BBL.) GM 350 V-8 (S/N 0B525982–0K001526)
• 450 (GEN. V) GM 454 V-8 (S/N 0F347100–0F347277)
• 470 (S/N 4208730–6225576)
• …and 43 more Mercury / Mariner / MerCruiser models — contact us to confirm your engine

Specifications:

• Weight: 0.001 kg
• Boxed dimensions: 5.461×2.921×1.397 cm