Relay Assembly – Fits Suzuki DF40A DF50A DF60A DF70A DF80A DF90A DF100 DF115 DF140 DF150 DF175 DF200 DF225 DF250 DF300A (Replaces 38410-93J12, 38410-93J10, 38410-93J11)

Product Details

This Relay Assembly is engineered for Suzuki outboard engines spanning multiple horsepower ratings, including DF40A, DF50A, DF60A, DF70A, DF80A, DF90A, DF100, DF115, DF140, DF150, DF175, DF200, DF225, DF250, DF250A, and DF300A models manufactured between 2011 and 2017. Designed as a direct-fit replacement for critical electrical control systems, this relay assembly ensures reliable power distribution and engine protection across a wide range of Suzuki four-stroke outboards.

This relay assembly replaces OEM part numbers 38410-93J12, 38410-93J10, and 38410-93J11, providing cross-compatibility across model years and configurations.

• Constructed from durable plastic material for maximum strength and long service life
• Direct bolt-on installation with no modification required
• Compatible with both standard and AV-series Suzuki outboards

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Part Type

Relay Assembly

Construction Material

Plastic

OEM Equivalents

38410-93J12, 38410-93J10, 38410-93J11

Application

Electrical control system

What's in the Box

• 1 × Relay Assembly

Installation Notes

1. Disconnect battery cables and ensure all electrical systems are off before beginning work.
2. Locate the existing relay assembly on your Suzuki outboard, typically mounted near the engine control unit or wiring harness junction.
3. Carefully disconnect the wiring connectors from the old relay, noting the correct orientation and connection points.
4. Remove mounting fasteners securing the relay assembly to the engine.
5. Position the new relay assembly in the same location, aligning mounting holes with engine bracket.
6. Secure the relay with original fasteners, torquing to manufacturer specifications if available.
7. Reconnect all wiring connectors, ensuring each terminal is fully seated and latched.
8. Inspect all connections for proper fit and clearance before reconnecting battery.
9. Reconnect battery and test engine start and electrical systems to verify proper relay operation.

Troubleshooting & FAQ

How do I know if my relay assembly needs replacement?

Common symptoms include intermittent starting, no electrical response when turning the key, clicking sounds without engine cranking, or complete electrical system failure. If your engine cranks slowly or electrical accessories fail intermittently, the relay assembly may be faulty.

Will this relay fit both standard and AV-series Suzuki outboards?

Yes, this relay assembly is compatible with both standard models (DF50A, DF60A) and AV-series models (DF50AV, DF60AV) within the specified year ranges. The electrical specifications and mounting configurations are identical across these variants.

Is any wiring modification required during installation?

No modifications are necessary. This is a direct-fit replacement designed to match OEM wiring connectors and mounting points exactly. Simply disconnect the old relay and connect the new unit using existing harnesses.

Can I install this relay myself, or do I need professional help?

Installation is straightforward for those with basic mechanical skills and familiarity with electrical systems. However, improper installation can cause electrical system damage or safety hazards. If you are not confident working with marine electrical components, professional installation is recommended.

What causes relay assemblies to fail?

Common causes include prolonged exposure to moisture and saltwater corrosion, electrical overload from faulty components, age-related contact wear, and vibration stress. Regular inspection and cleaning of electrical connections can extend relay life.

How often should the relay assembly be replaced?

Relay assemblies typically last many years under normal conditions. Replace when you experience starting issues, electrical failures, or during routine maintenance if corrosion or damage is visible. There is no fixed replacement interval; condition-based replacement is recommended.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

• Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.