Bomag 05747337 Piston Ring Set

The Bomag 05747337 Piston Ring Set is a genuine OEM component designed for Bomag BP-series vibratory plates and BPR-series reversible vibratory plates, including the BP 20/48, BP 25/48, BP 23/48, BP 23/60, BP 20/60, BP 18/45-2, BP 15/36-2, BP 15/45-2, BPR 25/40, BPR 25/32, BPR 25/45-3, BPR 30/38, BPR 30/38-2, BPR 30/38-3, and BPR 35/38-3. As a genuine Bomag part, this piston ring set is manufactured to the exact tolerances required to maintain correct compression and oil control in the engine. Sourced directly from Bomag, part number 05747337 ensures a direct replacement fit with no guesswork on compatibility across the full range of supported models.

Key Features

• OEM Compression Tolerancing — manufactured to Bomag's exact ring gap and tension specifications, ensuring correct cylinder sealing and oil control for the engines used across these vibratory plate families
• Drop-In Engine Replacement — engineered to match the original piston ring stack configuration, allowing straightforward installation during a top-end engine service or rebuild
• Broad Vibratory Plate Coverage — fits BP-series vibratory plates including the BP 20/48, BP 25/48, BP 23/48, BP 20/60, and BP 15/45-2, as well as BPR-series reversible vibratory plates including the BPR 25/40, BPR 30/38, BPR 30/38-2, BPR 30/38-3, BPR 35/38-3, BPR 25/32, and BPR 25/45-3
• Restored Engine Compression — worn or broken piston rings allow combustion gases to bypass the piston, causing power loss, excessive oil consumption, and hard starting; replacing this set restores full engine output and smooth operation
• Genuine Bomag Part — supplied as an authentic OEM piston ring set under part number 05747337, giving you confidence that the material grade and ring geometry match the original engine specification

The piston ring set seals the gap between the piston and the cylinder wall, performing two critical jobs: holding combustion pressure above the piston to generate power, and preventing engine oil from being drawn up into the combustion chamber. A compactor engine relies on tight ring-to-bore contact to deliver consistent centrifugal force through the exciter mechanism — without it, the plate loses compaction performance and fuel efficiency suffers. When rings wear, score, or break, operators typically notice a loss of power, blue exhaust smoke, or increased oil use, all of which signal that the ring set is due for replacement.

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.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

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