Mercruiser 8.2L 525 Longblock Engine. Mercruiser #8M0157869
Brand New • OEM Mercury Marine • Modern Power for Big Block Repowers
The MerCruiser 8M0157869 is a factory-new 8.2L V8 complete engine assembly designed for high-torque marine performance, exceptional durability, and smooth operation. This is a direct replacement for 8.2L, 525 engines serial number 1A350340 and newer. This engine is different than a stock 502, which we also have listed. This engine uses aluminum cylinder heads, and unique pistons and connecting rods only available from Mercruiser OEM.
1 year warranty through Mercruiser
What This Engine Includes (Exact Mercury OEM Contents)
Complete Base Engine
- 8.2L V8 long block (short block + heads installed)
- Crankshaft, rods, pistons, rings, camshaft
- Timing set & timing cover
- Oil pump & oil pan
- Cylinder heads & valve train (fully assembled)
- Valve covers (installed)
- Intake manifold (installed)Fuel & Induction System
- Throttle body
- Fuel rails & injectors
- 8.2L MPI fuel system components installed
Ignition & Electrical
- Coil packs installed
- Factory sensors (CKP, CMP, MAP, ECT, etc.)
- Engine wiring sub-harnesses (as supplied by Mercury)
Front Dress Components
- Alternator
- Power steering pump (where included by Mercury)
- Serpentine belt & bracket set
- Engine-mounted water pump / sea pump (if applicable for this configuration)
Additional Factory Components
- Thermostat housing
- Flywheel or drive coupler (varies by configuration)
- Oil filter
- Mercury factory run-tested assembly
What Is Not Included
- Exhaust manifolds & risers
- Stern drive / transom assembly
- Dash wiring harness
- Propeller, rigging, or installation hardware
Fast Nationwide Shipping
We ship anywhere in the United States with discounted LTL freight options, business-dock delivery, and liftgate services available.
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