Skip to product information
SKU:
NLT1R01175
Ships for free in 2–4 business days.
Starter Relay Solenoid for Yamaha Grizzly, Raptor & Rhino 450-700 - 3B4-81940-00-00
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This 12-volt starter relay solenoid replaces 3B4-81940-00-00, 1S3-81940-00-00, and 5B4-81940-00-00 on compatible Yamaha Grizzly, Raptor, and Rhino models.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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 Grizzly 550 YFM550 4x4 / EPS (2011-2013)
- Yamaha Grizzly 700 YFM700 4x4 / EPS using listed relay numbers
- Yamaha Raptor 700 / 700R YFM700R using listed relay numbers
- Yamaha Rhino 450 YXR450 (select 2006-2009 models)
- Yamaha Rhino 660 YXR660 (select 2004-2007 models)
- Yamaha Rhino 700 YXR700 using listed relay numbers
Product Overview
A single click with no starter rotation, intermittent cranking, or burned high-current terminals can point to a failed starter solenoid after battery condition, cable voltage drop, starter draw, fuses, and the start-control circuit are tested. This relay switches battery power to the starter on the listed Yamaha ATV and UTV applications.
Similar Yamaha solenoids can look alike while using different connectors, fuse holders, terminal positions, or mounting tabs. Match the number and physical layout—not only engine size—before connecting battery cables.
Key Features & Performance
- 12V high-current starter switching
- Integrated control connector for compatible Yamaha harnesses
- Replacement for burned or intermittent solenoid contacts
- Covers select Grizzly, Raptor, and Rhino families
- Cross-references three common Yamaha relay numbers
Replaces Part Numbers
- 3B4-81940-00-00
- 1S3-81940-00-00
- 5B4-81940-00-00
Common Uses
- Repairing a verified no-crank condition
- Replacing solenoid contacts with excessive voltage drop
- Correcting intermittent starter engagement
- Replacing heat-damaged battery or starter terminals on the relay
Technical Specifications
- Product Type: Starter relay solenoid
- Voltage: 12 V
- Application: Select Yamaha ATV and UTV models
- Circuit: Starter high-current control
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the negative battery cable before touching the solenoid terminals
- Test battery load, cable voltage drop, starter draw, and control voltage first
- Label the battery and starter cables so they are not reversed
- Match the fuse holder, connector, terminal spacing, and mounting tab to the original
- Tighten terminals securely without twisting the studs, then verify cranking operation
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Match the original 3B4, 1S3, or 5B4 relay number plus the control plug, fuse layout, stud spacing, cable orientation, and mounting tab. Model year, production date, serial number, trim, engine, installed options, and previous repairs can affect fitment.
Frequently Asked Questions
Q: If the solenoid clicks, is it definitely good? A: No. The coil can click while burned internal contacts fail to pass enough current; voltage-drop testing across the large studs will show the loss.
Q: Can a weak battery cause the same symptom? A: Yes. Load-test the battery and inspect both battery cables before replacing the relay.
Q: What should I compare before ordering? A: Match the original 3B4, 1S3, or 5B4 relay number plus the control plug, fuse layout, stud spacing, cable orientation, and mounting tab.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and reference numbers identify fitment only.
Package note: One starter relay solenoid is included with the fuse or terminal hardware shown in the photos.
Part Summary
keywords: Yamaha Grizzly starter solenoid, 3B4-81940-00-00 relay, Raptor 700 no crank repair, Rhino 660 starter relay, Yamaha ATV solenoid clicks, 5B4-81940-00-00 replacement
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.