What's the difference in RY39 and RY228 relays?

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Red Truck
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Location: Vader, WA

What's the difference in RY39 and RY228 relays?

Postby Red Truck » Thu Aug 08, 2019 6:32 pm

They're each 12 volt, 4 blades, about $5 apart, different colors, and their OEM numbers are 1 digit apart. The RY39 is rated at 30A and the RY228 amperage is never given. I asked both Standard Motor Products and Intermotor and got crickets. Other than appearing strikingly similar, does anybody know the real difference twixt the two?
'87 Isuzu pickup 2.3 gas, 5spd, 4WD
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