These higher undercarriage costs must be considered when opting for a Carrydozer version. The increased weight on the undercarriage means also higher contact pressure between rollers and track links, which can increase wear significantly. The deeper curvature of the Carrydozer/Superdozer blades literally carry the dirt moved, and the weight of the load increases pressure on the undercarriage and is thereby increasing the traction of the bulldozer. This blade design was introduced by Komatsu on their D575 A-2 dozers in 1995 as the Superdozer version. The Carrydozer version has a special blade with a curvature that allowed 57 cy ( 43.6 m³) to be pushed. The finger tip controls (FTC) allowed the D11R to be steered with small fingertip clutches on the left hand side. Other improvements made to the D11R were fingertip controls and electronic clutch and brakes.
Both were 770 hp (570 kW) and that would be increased to 850 hp (630 kW) later in 1997.
The D11R and D11R Carrydozer were introduced in Las Vegas, Nevada, at MINExpo International in 1996. This would become known as the D11N Impact Ripper. In 1987 a hydraulically powered impact ripper was added to the D11N which raised the weight up to 225,950 lb (102,490 kg). The D11N's improvements made it over 10 percent more productive than the D10. This increased the blade capacity to 45 cu yd (34 m 3). The U blade was just under 21 feet (6.4 m) long and 7 feet (2.1 m) high. The D11N had some major improvements over the D10: it includes a bigger track and blade, and a longer track by 21 inches (0.53 m). The D11N was introduced in February 1986 to replace the D10. Primarily designed as a bulldozer, it is also used for push-loading scrapers, and ripping rock overburden. in East Peoria, Illinois, and mainly used in the mining industry. The Caterpillar D11T is a large bulldozer, manufactured by Caterpillar Inc.
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