Who Made Force Outboards? The Complete History (1962–1999)

For modern boaters, the "Force" name often appears on the back of older Bayliner or Maxum hulls found on the used market. Understanding the lineage of these engines is critical for sourcing parts, as many components are interchangeable with Chrysler or Mercury outboards. This guide traces the technical evolution of the brand from its West Bend roots to its final years under Mercury's stewardship.

Who Made Force Outboard Motors?

The production of Force outboards was a relay race between three major industrial powers. While US Marine (Bayliner) is the name most associated with the brand’s "Force" rebranding in 1984, the technical DNA of every Force engine belongs to Chrysler Marine. Finally, Brunswick Corporation, the parent company of Mercury Marine, took the reins in 1986, managing the brand through its peak years and eventual retirement in the late 90s.

The West Bend Origins: Where Force Engines Really Began (1962)

Before Chrysler or US Marine, there was the West Bend Aluminum Company. West Bend was a significant player in the mid-century outboard market, but they were also the secret manufacturer behind Sears' Elgin Outboards through 1959. In January 1965, the Wall Street Journal reported that Chrysler Corporation had officially purchased West Bend’s outboard division to expand its "Pentastar" empire.

Chrysler Buys West Bend and Rebrands (1970s)

When Chrysler acquired West Bend, they didn't just buy a few designs—they captured 29% of the entire U.S. marine engine market and a massive 590,000 square foot factory in Hartford, Wisconsin. Chrysler refined these simple, lightweight 2-stroke designs throughout the 1970s, establishing a reputation for engines that were easy to service, if not particularly high-tech.

Why Did Chrysler Sell Its Outboard Division?

By the late 1970s, Chrysler Corporation was facing a massive financial crisis. Between 1979 and 1980, the company secured a federal government bailout to survive. As a strict condition of this bailout, Chrysler was forced to divest from all non-automotive businesses.

The 1983 Government Bailout That Changed Everything

The outboard division was the final piece of the puzzle to be sold. It took until 1984 to finalize a deal, when US Marine (the manufacturing arm of Bayliner) stepped in to buy the assets. They saw an opportunity to create a "vertically integrated" boat package that included the boat, motor, and trailer for one low price.

Bayliner and the Birth of the Force Brand (1984–1986)

Under US Marine, production remained in the Hartford, Wisconsin factory. The goal was to provide a reliable, low-cost engine that could be pre-installed on every Bayliner boat sold, bypassing the expensive dealer rigging process.

Why US Marine Renamed Them "Force"

The "Chrysler" name was associated with high licensing fees and the company's recent financial struggles. US Marine rebranded the entire lineup as Force, launching the "Power Package" concept that fundamentally changed how boats were marketed to the American public.

Are Force Outboards Made by Mercury?

Yes, but only after 1986. In that year, Brunswick Corporation (the parent of Mercury) acquired both Bayliner and its US Marine engine division. This move brought the Force brand under the same roof as Mercury.

What Changed After Brunswick Took Over in 1986

Mercury began applying their higher manufacturing standards to the Force line. They replaced the troublesome Prestolite ignition systems with more reliable Mercury-designed components and updated the aesthetics to match the modern look of the Mercury fleet.

The 1994–1999 Mercury/Force Hybrid Engines

By the mid-90s, the line between the two brands blurred significantly. These "Hybrid" models used Mercury lower units, Mercury power trim systems, and Mercury carburetors. For many mechanics, these late-90s Force engines are considered the most reliable models the brand ever produced.

Why Were Force Outboards Discontinued in 1999?

The brand didn't fail due to sales—it was killed by environmental regulations. The EPA’s 2006 emission standards required a massive shift toward cleaner engines. Force’s cross-scavenged 2-stroke designs simply could not meet these requirements without a prohibitively expensive redesign. Brunswick chose to retire the brand in 1999 to focus on the emerging Mercury FourStroke and OptiMax technologies.

Can You Still Get Parts for a Force Outboard?

Yes. Because Mercury Marine owned the brand for 13 years, the vast majority of parts for Force engines (especially 1986–1999 models) are still available through the Mercury dealer network. Pre-1986 models share many parts with Chrysler Marine, which are well-supported by aftermarket companies like Sierra.

Force Outboard Specifications by Model (Full Table)