Contract services must meet or exceed the mandatory requirements listed below. 3.11.1 Crawler Dozer-Caterpillar D-8N or equivalent. 3.11.1.1 Must have 285 minimum flywheel horsepower, equipped with a UType Dozer Blade. 3.11.2 Crawler Dozer-Caterpillar D-6H or equivalent. 3.11.2.1 Must have 165 minimum flywheel horsepower, equipped with a straight or angle-type dozer blade. 3.11.3 Crawler Dozer-Caterpillar D-3G LGP or equivalent. 3.11.3.1 Must have 52 minimum flywheel horsepower, equipped with a straight or angle-type dozer blade. 3.11.4 Crawler Dozer-Caterpillar D-5G LGP or equivalent. 3.11.4.1 Must have 67 minimum flywheel horsepower, equipped with a straight or angle type dozer blade. 3.11.5 Crawler Loader-Caterpillar 931C or equivalent. 3.11.5.1 Must have 67 minimum flywheel horsepower with standard 1.05-yard bucket.