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SKU:
NLT2D07614
Ships for free in 2–4 business days.
Yamaha 703 Outboard Control Box Ignition Switch & Keys 703-82510
$31.99
In Stock
$31.99
Sale price
$31.99
Regular price
Aftermarket ignition switch and key assembly for compatible Yamaha 703 remote control boxes and outboards using 703-82510-series references.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Yamaha 703 remote control boxes using 703-82510-series switch
- Compatible Yamaha 8, 9.9, 15, 25, 30, 40, 60, 70, 115, 150, 200, and 225 HP outboards with matching wiring
Product Overview
When the key jams, turns without engaging, will not send a crank signal, or has been damaged by salt and moisture, the control-box ignition switch may be the part that needs replacement. This assembly restores the keyed electrical control in compatible Yamaha 703 boxes.
Outboard wiring varies by engine and control-box revision. The part number, connector, wire colors, choke or push-to-prime function, and safety circuit must match—not just horsepower.
Key Features & Performance
- Ignition switch with matching keys
- For Yamaha 703 remote control boxes
- Restores key-controlled start and run functions
- Aftermarket marine replacement assembly
Replaces Part Numbers
- 703-82510-43-00
- 703-82510-44-00
- 703-82510-42-00
- 703-82510-11-00
- 703-82510
- MP51040
Common Uses
- Key will not turn or return correctly
- No crank signal with battery and starter circuit verified
- Corroded or intermittent switch contacts
- Lost or broken key requiring a matched switch set
Technical Specifications
- Product Type: Marine ignition switch and key assembly
- Control Box: Yamaha 703 series
- Application: Outboard remote controls
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect battery power before opening the control box
- Photograph and label every wire and connector
- Match safety-lanyard and push-to-prime functions
- Test start, stop, choke/prime, and neutral safety operation
Compatibility Notice
Horsepower range is only a guide. Match exact 703 control-box revision, original number, connector, wire colors, terminal functions, mounting diameter, and engine wiring diagram.
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Frequently Asked Questions
Q: Will my old key work? A: Usually no; use the keys supplied with the replacement switch.
Q: Can the switch cause a no-crank? A: Yes, but battery, neutral safety, harness, solenoid, and starter should be tested too.
Q: Does it fit every Yamaha outboard? A: No. It must use a compatible 703 control box and matching switch wiring.
Q: Why test the kill circuit? A: A wiring error can prevent shutdown or create an unsafe starting condition.
Part Summary
keywords: Yamaha 703 ignition switch, 703-82510 replacement, outboard control box key switch, Yamaha no crank switch, MP51040 marine ignition, aftermarket Yamaha remote control switch
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.