How much does it cost to replace a lower unit on a Mercury outboard?

If you have your local mechanic repair the lower unit, his labor will run about $300-400 for this type of repair. The cost of the parts will be the same as above. Doing the job yourself will cost about $800 more than having a professional do it.

How much does it cost to replace a lower unit on a boat?

We checked around and found that replacing only the shaft would be close to $1,000 with labor, but other components could also be damaged. We looked at remanufactured lower units, but they cost $2,240.

Are outboard lower units interchangeable?

It is true that Johnson / Evinrude lower units can be interchanged however, you can’t rely on visual comparison alone.

How do I know if my Mercruiser lower unit is bad?

Bad outboard lower units can give the operator shifting issues, and other signs will include water in the gear lube, metallic particles on the drain screw magnet, clunking sounds when shifted, or the loss of the ability to shift into gears.

How do you break in a lower unit?

Lower Unit & Sterndrive Break-in Procedure

  1. Fill unit with manufacturer’s required gear oil to recommended level.
  2. Adjust RPM at idle to manufacturer’s specifications.
  3. Proper shift adjustment is essential.
  4. Jumping out of gear: If the unit will not stay in gear, the clutch dog has probably been rounded off.

How long does it take to rebuild a lower unit?

Depending on our workload we can usually rebuild your lower unit in 2 to 4 days.

Are Mercury and Mariner lower units interchangeable?

No. Different type lower. It doesn’t have to be a black max, and it can be a mercury or mariner.

What causes a lower unit to go bad?

A milky or whitish color in the outboard engine lower unit gear oil indicates a water leak, which can lead to engine stalling or failure. Outboard engine lower unit leaks often result from a broken propeller seal. The operator should replace the seal and flush the oil to resolve the problem.

How is water getting in my lower unit?

This is usually caused by a leaky seal due to fishing line or other fine debris that got wrapped around your prop shaft. If you have water in your oil, don’t finish the oil change because water will just seep back in when you get out on the water. This will do more damage to your gear box. Your oil plugs have gaskets.

What type of oil goes in a Mercury 150 lower unit?

Mercury Premium SAE 80W90 Gear Lube is recommended for lower units for outboards below 75 horsepower. Mercury Premium SAE 80W90 Gear Lube should not be mixed with Mercury High-Performance SAE 90 Gear Lube.

How to replace a Mercury 3.0L lower unit?

Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 20″ Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling…

How big is a Mercury 2.5L transom RH?

BPI148T84 Lower Unit for Mercury V6 2.5L 20 Inch Transom RH 1.87:1 Mercury Remanufactured V6 Outboard Gearcase 1.87:1 Gear Ratio Fits 135, 150, 175, 200, and 225 HP 2.5L V6 Outboards 8-Spline Driveshaft for 20″ RH… $1,999.00 BPI148T81 Lower Unit for Mercury V6 2.5L 20 Inch Transom RH 2.00:1

What kind of lower unit does a mariner outboard use?

(Johnson and Evinrude outboards do not include water pump assemblies.) A durable paint and oven-baked protection process shields your lower unit from the elements and keeps it looking like new. JASPER remanufactured lowers are available for such models as Mercury, Mariner, Johnson and Evinrude outboards.

What kind of lower unit does Jasper marine use?

JASPER remanufactured lowers are available for such models as Mercury, Mariner, Johnson and Evinrude outboards. With a remanufactured lower unit from JASPER MARINE you not only purchase quality and value, but also peace of mind and trouble-free operation for years to come.