Bomag 05718675 Marginal Relay

The Bomag 05718675 Marginal Relay is a genuine OEM electrical relay designed for Bomag BW-series tandem rollers and single drum rollers, including the BW 135 AD, BW 138 AD, BW 138 AC, BW 154 AD-4, BW 161 AD-4, and BW 151 AD-4, among others. Sourced directly from Bomag, this relay matches the original component specification for a straight-forward drop-in installation. It also covers select single drum roller models including the BW 177 D-4, BW145D 40, BW145DH 40, and BW145PDH 40. If your machine's electrical system is showing signs of relay failure, part number 05718675 is the correct OEM replacement to restore proper operation.

Key Features

• Genuine OEM Electrical Specification — matched to Bomag's original switching thresholds and load ratings, ensuring the relay operates within the correct parameters for your machine's electrical circuit
• Direct Drop-In Replacement — engineered to the same connector format and mounting footprint as the original, so installation requires no rewiring or adaptation
• Broad Tandem and Single Drum Roller Coverage — fits a wide range of BW-series machines including BW 135 AD, BW 138 AD, BW 138 AC, BW 138-AD, BW 141 AD-4, BW 141 AD-4 AM, BW 151 AD-4, BW 151 AD-4 AM, BW 151 AC-4, BW 151 AC-4 AM, BW 154 AD-4, BW 154 AD-4 AM, BW 161 AD-4, BW 161 AC-4, BW 161 ADO-4, BW 161 AD-4 EU-Flex, BW 177 D-4, BW145D 40, BW145DH 40, and BW145PDH 40
• Protects Critical Electrical Circuits — a functioning marginal relay correctly governs circuit switching under load; a failed relay can cause erratic machine behavior, non-responsive controls, or unprotected electrical faults
• Electrical Safety Integrity — as a switching component in the machine's control circuit, using the correct OEM-spec relay maintains proper fault protection and prevents unintended current flow to downstream components

A marginal relay is an electrical switching device that controls the activation of one or more circuits based on a signal from the machine's control system. In Bomag tandem and single drum rollers, this relay manages switching tasks within the machine's electrical architecture, ensuring that specific systems engage and disengage at the correct time and under the correct conditions. When the relay degrades or fails, the circuits it governs may respond intermittently or not at all, leading to operational faults that can be difficult to diagnose without first ruling out the relay as the source.

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.