The Rhino CS177ESB 9HP Gas Engine, built by Carroll Stream Motor Company, is a durable and versatile electric-start small engine designed for general-purpose power applications across residential, commercial, and industrial equipment. With a 270cc 4-stroke OHV single-cylinder design, the CS177ESB delivers smooth performance, reliable ignition, and long service life — making it an ideal upgrade or replacement engine for a wide range of machines.

This model is perfect for equipment that benefits from quick startups and direct drive RPM, such as pressure washers, log splitters, air compressors, go-karts, generators, small farm equipment, sawmills, water pumps, and utility machinery.

The CS177ESB includes a push-button electric start system, allowing you to power up your engine instantly with minimal effort — especially useful in cold weather or frequent-start tasks. It also includes a recoil pull start backup, giving you complete flexibility in case a battery is low or disconnected. This dual-start setup is ideal for users who want both convenience and reliability in all working conditions.

Dependable 9HP Performance

Producing 9 horsepower at 3600 RPM and 11.4 ft-lbs of torque, the CS177ESB offers steady, responsive output for equipment requiring fast, consistent operating speed. This direct-drive configuration (no gear reduction) provides faster RPM transfer — perfect for rotating and blade-driven machinery.

A cast iron cylinder sleeve provides added durability and wear resistance, while the splash lubrication system protects moving components and increases engine life. A low-oil shutdown feature offers automatic protection against damage, ensuring the engine stays safe during extended operation. The forced air cooling system keeps internal temperatures stable, preventing overheating even during heavy-duty or continuous-use tasks.

Compact, Lightweight & Easy to Install

With a 1-inch keyed horizontal shaft (1/4-inch keyway) and a compact footprint of 15" x 17" x 17", this engine installs easily into most existing mounting bays. The 62 lb lightweight design also makes it easier to maneuver during installation or maintenance compared to larger engines.

The CS177ESB is equipped with a 1.58-gallon fuel tank for extended operating time. Its OHV configuration improves combustion efficiency, allowing the engine to run longer on less fuel while still delivering steady power. This makes it a great fit for both occasional and daily-use equipment.

Why Choose Carroll Stream Motor Company?

Since 2005, Carroll Stream Motor Company has specialized in fully rebuildable small engines, offering full parts support, expert technical assistance, and Michigan-based service. We provide fast, free shipping in the lower 48 states, with most in-stock orders shipping the same day. For assistance with ordering or compatibility questions, call us at 1-888-208-2088, and our team of specialists will be happy to assist you.