Mercury – Engine Starter 12 Volt | 42MT Series | Heavy Duty Marine Construction | 8M6007272

Overview
If you run big equipment or a hard-working boat, you already know the starter is one of those parts you only think about when it fails. The days you remember are the rough ones—cold mornings at the dock, a barge wake rolling through the harbor, or a tight schedule on a work site when the engine has to light off. A Mercury Marine part like this starter earns your trust by never turning those moments into stories. You hit the key, it grabs, and the engine comes to life like it should.

Part number 8M6007272 is built for that kind of everyday pressure. It is the quiet, dependable muscle behind each start, whether it is bolted to a marine diesel in a workboat or a powerplant on an industrial machine. You will feel the difference in how confidently your engine spins when it matters.

Key Features

• Twelve volt direct drive engine starter for marine, agricultural, industrial, and powersports use

• Designed to match Delco 42MT series performance and mounting characteristics

• Clockwise rotation with twelve tooth drive gear for solid, repeatable flywheel engagement

• High temperature epoxy armature that locks wiring in place and shields it from corrosion

• Internal construction with copper bushings or heavy duty needle bearings for long, dependable service life

• Permanent magnet design that delivers strong torque and consistent cranking output

• Built to meet Marine SAEJ1171 ignition protection standards for use in engine compartments

Engine & Boat Compatibility

• Suitable for many marine diesel and gasoline inboard engines specified for this 42MT style starter

• Commonly found on commercial fishing vessels, workboats, crew boats, and larger cruisers

• Also used on agricultural tractors, construction equipment, and industrial power units that call for this part number

• A smart choice for mixed fleets where the same Mercury Marine part keeps both equipment and boats turning over reliably

Performance & Practical Benefits
In real use, this starter feels solid from the first time you turn the key. You hear a clean, confident click, then a strong, steady spin that brings the engine over without dragging or stumbling. The direct drive layout and permanent magnet design give you tight, predictable engagement with the flywheel, even after long days of heat and vibration.

Out on the water or on the job site, that consistency matters. The high temperature epoxy armature and rugged internal bearings do not flinch at the heat soaking into the engine bay or the moisture that hangs in a marine environment. Maintenance stays simple, and you will notice how quickly the starter catches and cranks, even after the machine has sat for a while. Install it correctly once, and it becomes one of those components you stop worrying about, because it simply does its job start after start.

Why Buy OEM
When your boat or equipment is tied to your livelihood—or to safely getting your family home—guesswork on starting components is a bad gamble. A genuine Mercury Marine part built to original equipment manufacturer standards means the rotation, gear mesh, and electrical load are exactly what your engine was designed around. You are not hoping it fits; you know it does.

Over time, that precision saves money and frustration. You reduce flywheel wear, avoid mysterious starting issues, and cut down on emergency service calls. If a fellow captain or operator asked which starter to run for an application that calls for a 42MT style unit, I would steer them straight to part number 8M6007272. It is designed to fit right the first time and hold up in the kind of conditions that chew through lesser parts.

FAQ

Q1: Which Mercury engines or systems does the Engine Starter 8M6007272 fit?
This Mercury Marine part is used on a wide range of marine, agricultural, and industrial engines that specify a twelve volt 42MT style starter and call out part number 8M6007272 or its direct equivalent.

Q2: What makes this part different from aftermarket alternatives?
It is built to original equipment manufacturer specifications for output, rotation, and engagement, with rugged internal materials and marine focused design that many generic units simply do not match.

Q3: How do I know if this is the correct replacement for my setup?
Check the label on your existing starter and your owner’s or service manual. If they reference the 42MT series and list part number 8M6007272 or a direct cross, this is the correct replacement.

Q4: Can this be used in both saltwater and freshwater applications?
Yes. It is designed for marine environments and performs well in both saltwater and freshwater as long as normal engine care and corrosion protection practices are followed.

Q5: Is installation straightforward for most boat owners or operators?
If you are comfortable working with batteries and heavy cables, installation is usually direct. Disconnect power, follow the service instructions, and make sure every connection is clean, tight, and secure before cranking the engine.