Bomag 05813128 Hydraulic Tandem Gear Pump

The Bomag 05813128 Hydraulic Tandem Gear Pump is a genuine OEM component designed for Bomag tandem rollers including the BW 100 AC-3, BW 100 AD-3, BW 120 AC-3, BW 120 AD-3, BW 125 ACH, BW 125 ADH, BW 135 AC, BW 135 AD, BW 138 AC, BW 138 AD, BW 138-AD, BW 141 AD-4, BW 151 AC-4, BW 151 AD-4, and BW 154 AD-4. Sourced directly from Bomag, this pump is manufactured to the exact specifications of the original unit it replaces, ensuring a correct, hassle-free installation. When hydraulic output is critical to drum drive and vibration performance, this genuine OEM part is the dependable choice for keeping your tandem roller operating at full capacity.

Key Features

• Genuine OEM Hydraulic Output Spec — manufactured by Bomag to the original flow rate and pressure ratings required by the tandem roller hydraulic circuit, with no compromises on gear tolerancing or porting geometry
• Direct Drop-In Replacement — engineered to the exact mounting configuration and port dimensions of the original unit, so this pump installs directly into the hydraulic system without modification
• Broad Tandem Roller Coverage — confirmed fit across the BW 100, BW 120, BW 125, BW 135, BW 138, BW 141, BW 151, and BW 154 tandem roller families, spanning AC and AD drive variants as well as multiple generation suffixes
• Sustained Drum Drive and Vibration Performance — a correctly functioning tandem gear pump maintains consistent hydraulic pressure to both drum drive motors and the vibration circuit; a worn or failing pump causes sluggish drum response, loss of vibration amplitude, and uneven compaction
• Part Number Traceability — ordering by Bomag part number 05813128 ensures you receive the correct pump assembly for your specific machine variant, eliminating the risk of a mismatched unit reaching the field

A hydraulic tandem gear pump generates the pressurized fluid flow that powers two separate hydraulic circuits simultaneously — on a tandem roller, these typically feed the drum propulsion system and the vibratory system. The pump's twin gear sets spin in mesh to draw hydraulic fluid from the reservoir and push it through the machine at the pressure and volume the system demands. When the pump wears internally — through gear backlash, seal degradation, or cavitation damage — flow drops, pressure becomes inconsistent, and the machine loses drive force or vibration output, directly impacting compaction quality and cycle times.

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.