Manifold Exhaust for Mercruiser GM 181 3.0L and similar items

# BARMC-1-52390 Direct replacement Exhaust Manifold for 181 Cubic Inch 140 HP Mercruiser Inline 4 Cylinder Engine used from 1968 to 1982 on the 181 140 HP engine. Uses the Rochester 2 BBL small bore Carburetor with the heat source choke going through the exhaust port on the exhaust manifold. Replaces Mercruiser #: 52390A1 Determine which carburetor my application used Fits Applications (Click to View) Mercruiser Stern Drive Model Year HP Serial # Notes 140 GM 181 I/L4 1978 3332138 THRU 5157668 140 GM 181 I/L4 1977 3332138 THRU 5157668 140 GM 181 I/L4 1976 3332138 THRU 5157668 140 GM 181 I/L4 1979 5157669 THRU 6229717 140 GM 181 I/L4 1980 5157669 THRU 6229717 140 GM 181 I/L4 1982 5157669 THRU 6229717 140 GM 181 I/L4 1981 5157669 THRU 6229717 140 GM 181 I/L4 1975 3332138 THRU 5157668 140 GM 181 I/L4 1974 3332138 THRU 5157668 140 GM 181 I/L4 1970 2508261 THRU 3332137 140 GM 181 I/L4 1969 2508261 THRU 3332137 140 GM 181 I/L4 1971 2508261 THRU 3332137 140 GM 181 I/L4 1972 2508261 THRU 3332137 140 GM 181 I/L4 1973 3332138 THRU 5157668 140 GM 181 I/L4 1972 3332138 THRU 5157668 140 GM 181 I/L4 1968 2508261 THRU 3332137 Brand HP Model Year Cylinders Serial Number Part Notes About Us Basic Power and its staff want you to feel 100% confident in your purchases. Here are a few reasons why: Multi-Million dollar inventory In Stock and Ready to Ship from our huge inventory Shipped Same Day when order is placed before 2pm Highly Technical staff available Tracking numbers are visible through purchase history right from your computer We sell ONLY quality marine specific parts Contact us through messaging system PayPal payments and Credit Cards through PayPal are accepted 14 Day No Hassle Returns Ships best way via USPS or UPS Shipping Shipping rates of $12 and less are eligible for combined shipping. Items with $13 or more shipping cannot have the shipping costs combined. Our normal handling time is 1-2 days. Payment We accept payment by any of the following methods: PayPal Please pay as soon as possible after winning an sale, as that will allow us to post your item to you sooner! Returns You can message us through to obtain your RMA number to authorize your return with the 14 day period. Returned items must be in the original unopened packaging in new condition within 14 days of purchase. Buyer is responsible for all shipping costs. All returns will incur a 20% restocking fee. Stickers / Decals Accessories Alternators Anodes Zincs Bell Housings Bellows Kits Camshafts Lifters Capitol Transmission Parts Carburetor Parts Inboard Carburetor Parts Outboard Circulating Water Pumps Coils Inboard Coils Outboard Controls Steering Couplers Couplings Cylinder Heads Distributors Drive Dampers Plates Elbow Connectors Exhaust Electronic Fuel Injection EFI Engine Parts (Marine) Exhaust Manifold Kits Exhaust Manifolds Parts Exhaust Mufflers Thru-Hulls Exhaust Risers, Elbows, Parts Exhaust Shutters and Flappers Fishing Lures Tackle Fittings Wye and Tee Exhaust Flame Arrestors Flywheels, Harmonic Balancers Fuel Filters Seperators Fuel Lines Fuel Pump Inboard I/O Fuel Pumps Outboard Fuel System Parts (Marine) Galley Utensils Gaskets Inboard Gaskets Outboard Gauges Gauge Sets Gear Sets Hatches, Rigging Accessories Heat Exchangers Parts Hose Fittings (Marine) Hurth Marine Transmission Part Ignition Electrical (Marine) Intake Manifolds Lower Unit Outboard Lower Unit Sterndrive Manuals, Repair Motor Mounts Oil Coolers Oil Filters Oil Pans, Timing, Valve Covers Oil Pumps Inboard Outboard Water Pumps Paragon Transmission Parts Power Packs Powerhead Parts Pulleys Belts Raw Water Pumps Inboard Rectifiers Regulators Senders for Gauges Skeg Shield Solenoids Specialty Tools (Marine) Starter Drives Jack Shafts Starters for Diesel Marine Starters Inboard Sterndrive Starters Outboard Starters Personal Water Craft Stators Sterndrive Outdrive Water Pump Switch Boxes Thermostats Hsg. Inboard Thermostats Outboard Timer Bases Trailer Rollers and Stops Transom Parts Triggers Trim Tilt Motors Trim System Parts Upper Unit Parts Valves Seacocks (Marine) Velvet Drive Parts Vinyl Window Car Wall Decals Voltage Regulators Wire Harness Johnson Evinrude Wire Sets Johnson Evinrude Wires Harnesses - Mercury OB