Caterpillar - This year marks the 50th anniversary of the 988 Wheel Loader. The first production 5 cubic yard loader was powered by a six-cylinder Cat D343 diesel and was rated at
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1970 Cat 988 Wheel Loader in El Paso, Texas, United States (IronPlanet Item #8828436)
Cat 988 Wheel Loader in Michigan City, Indiana, United States (IronPlanet Item #7938536)