Crankshafts - quality and affordable price page 1 of 4

Heavy-Duty Diesel Engine Crankshafts & Rotating Assembly Components

Crankshafts are among the most critical components in any diesel engine, responsible for converting the linear motion of the pistons into rotational power that drives the drivetrain. Our catalog includes a wide selection of crankshafts, crankshaft pulleys, timing gears, snubbed-nose crankshafts, rear seals, harmonic pulleys, and related rotating assembly components for major engine platforms such as Cummins ISB, ISL, ISX12, ISX15, QSM11, NT855; Detroit Diesel Series 60, 6-71, 14L, DD13, DD15; Volvo D12, D13; Mack MP8; Paccar MX13; International/Navistar DT466E & VT365; John Deere 6068 and many others used in long-haul, industrial, and off-highway applications.

Why the crankshaft is vital for engine durability and performance

The diesel engine crankshaft is subjected to extreme combustion forces, high torque output, and continuous rotational stress. A worn, cracked, or out-of-balance crankshaft can cause severe vibration, knocking, bearing wear, oil pressure loss, and catastrophic engine failure. Maintaining a structurally sound crankshaft ensures smooth engine operation, optimal fuel efficiency, and stable performance under heavy loads — especially important for fleet trucks, agricultural machinery, heavy construction equipment, and high-horsepower diesel engines.

When choosing a replacement crankshaft or related components, consider:

• compatibility with engine family, displacement, and OEM specifications
• crankshaft style (standard nose, snubbed nose, full counterweight)
• condition of matching parts such as timing gears, pulleys, seals, and bearings
• required load capacity and intended operating environment (long-haul, severe duty, off-road)

Built for high torque, longevity, and precise engine balance

Our inventory features crankshafts engineered from high-strength forged steel and machined to precise tolerances for proper journal alignment and rotational balance. Many units include hardened surfaces, induction-treated journals, and OEM-matched counterweights to ensure stability during high-RPM operation. Whether you’re rebuilding a Cummins ISX15 rotating assembly, replacing a Detroit Diesel Series 60 crankshaft, installing a Volvo D13 timing gear, or restoring a Mack MP8 crankshaft pulley, each component is designed to deliver long-term durability and seamless integration with your engine’s bottom end.