Bomag 05712589 Flywheel

The Bomag 05712589 Flywheel is a genuine OEM component designed for a broad range of Bomag BW-series single drum rollers, tandem rollers, and pneumatic tyred rollers. Sourced directly from Bomag, this flywheel delivers the exact tolerances and balance specifications required to maintain smooth engine operation across the covered models. Compatible machines include single drum rollers such as the BW 213 D-5, BW 216 D-5, BW 219 D-5, BW 226 DH-5, and BW 211 D-5, tandem rollers including the BW 191 AD-5, BW 202 AD-2, and BW 206 AD-5, and pneumatic tyred rollers such as the BW 24 RH, BW 25 RH, BW 27 RH, and BW 28 RH. As a genuine OEM part, the Bomag 05712589 installs directly without modification, ensuring proper engagement with the engine's crankshaft and starter system from the first crank.

Key Features

• OEM-Matched Balance and Mass — manufactured to Bomag's exact rotational balance specifications, this flywheel maintains consistent engine momentum and prevents vibration that worn or off-spec flywheels introduce into the drivetrain.
• Direct Engine Interface Fit — engineered to the correct bolt pattern, ring gear tooth count, and crankshaft flange dimensions for covered BW-series rollers, so installation is straightforward with no shimming or rework.
• Wide BW-Series Coverage — fits Bomag single drum rollers including BW 211, BW 213, BW 214, BW 216, BW 219, and BW 226 variants across generation -3 through -5, tandem rollers including BW 161, BW 164, BW 191, BW 202, and BW 206 models, and pneumatic tyred rollers including BW 24 RH, BW 25 RH, BW 27 RH, and BW 28 RH.
• Sustained Engine Output — a correctly functioning flywheel stores and releases rotational energy between combustion strokes, keeping the engine running smoothly under the variable load demands of compaction work; a worn or cracked flywheel causes rough running, hard starting, and uneven drum performance.
• Starter Ring Gear Integrity — the ring gear teeth on a genuine OEM flywheel are hardened to the correct specification, protecting the starter motor from excessive wear caused by undersized or improperly hardened teeth.

The flywheel is a heavy rotating disc mounted to the rear of the engine crankshaft. Its primary job is to store kinetic energy during the power stroke and release it through the remaining strokes of the engine cycle, smoothing out the pulses that a diesel engine produces. On compaction equipment like Bomag rollers, where engine load fluctuates constantly as the drum engages the ground, a properly balanced flywheel also prevents torsional vibration from feeding back into the engine and transmission. When a flywheel develops cracks, imbalance, or ring gear wear, symptoms include difficult starting, rough idle, excessive vibration, and accelerated wear on connected drivetrain components — making prompt replacement essential to keeping the roller productive.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.