Volvo Penta Power Trim Relay 854357

Volvo Penta 854357 is a genuine power trim relay used in older Volvo Penta sterndrive trim and tilt systems. Current references consistently identify this part as a power trim relay / changeover relay for the hydraulic pump and trim instrument circuit, and current listings describe it as a 12V relay with a mounting bracket and 5-terminal layout.

Key Features

• Genuine Volvo Penta part number 854357.
• Identified as a power trim relay used in trim/tilt electrical systems.
• Commonly described as a 12V 30/40A or 12V 40A metal relay with 5 blade terminals and a mounting tab/bracket.
• Current sources also show older relay number 899548 associated with this application family.

Engine Compatibility
Current references show Volvo Penta 854357 used on a broad range of older sterndrive applications rather than engine-specific fuel or ignition systems. Reviewed sources associate it with DP-C, DP-C1, DP-D1, DP-S, DPX-S, SP-A, and SP-C drives, while other current listings also connect it with DP-X, DP-E, DP-G, and SP-E trim systems. Additional replacement-market references broaden that application family to older 290, DP-A, DP-B, DP-C, DP-D, DP-E, DP-G, SP-A, SP-C, SP-E, and DPX trim/tilt pump setups. Fitment should be confirmed by exact drive model, trim pump configuration, and serial number before ordering.

Serial Number Fitment Notice
Trim relays can vary by drive generation, pump style, bracket design, and terminal layout. Confirm Volvo Penta 854357 by drive serial number and by matching the existing relay’s terminal count, mounting bracket, and electrical rating before ordering. Current confirmed part number is 854357.

When This Part Needs Replacement
Replace this relay when the trim or tilt system becomes intermittent, fails to switch pump direction properly, clicks without operating the pump, shows corroded terminals, or has visible heat damage at the case or connector terminals. Because this relay is part of the power trim control circuit, failure often shows up as unreliable trim operation even when the pump and switch are otherwise serviceable. This replacement guidance is a service-based inference supported by the part’s confirmed role as a power trim relay.

Installation Notes
Match the replacement directly to the original relay before installation, paying close attention to terminal layout, bracket style, and voltage/amperage rating. Inspect the relay socket or wiring terminals for corrosion, looseness, or moisture intrusion during replacement, especially on older trim systems. Current references consistently describe this relay as a 5-terminal mounted unit for the trim pump / trim instrument circuit, which makes terminal configuration the key installation checkpoint.

Alternate/Superseded Part Numbers
Current references show older relay number 899548 associated with Volvo Penta 854357 in the same power trim relay application family. Replacement-market references also list aftermarket equivalents sold against 854357 for older Volvo Penta trim/tilt systems. Current confirmed OEM ordering number is 854357.

Parts Desk Insight
For trim relays, the strongest buying checkpoint is usually the relay’s exact job in the trim pump circuit, not the word relay alone. Current references point clearly to 854357 as a power trim changeover relay for older Volvo Penta sterndrive systems, so matching the existing bracket, 5-terminal layout, and 12V trim-pump application is the cleanest way to avoid ordering the wrong electrical part.

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