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Your cart is empty.Bosch has been producing relays for vehicles and other applications for more than 40 years - this vast development experience ensures continuous advancement in design features to deliver optimum performance. Bosch Mini Relays feature a compact design and are used in a wide range of vehicles to perform switching operations. Bosch relays incorporate only the highest quality materials for reliable, long-term performance and a 250,000 switching cycle capability. Engineered with high corrosion resistance to ensure long term reliability in harsh environments and conditions. 5 pins, 12V, 20/30A. Integral bracket mount. Black.
Chuck Gusha
2025-08-30 18:25:40
One of 6 relays in my Ventrac 4000 tractor. I replaced 5 of them for various reasons. They all work great.
dan long
2025-07-08 13:06:48
This was a relay I used to replace the worn out BOSCH 0333204125 5 pin relay for an old, mid-80's ONAN BFA 4.0 RV Generator. I was refreshing the entire electrical after many slow and failed starts and just got sick of it. After spending some time researching I managed to get the right start solenoids, fuse holders and other bit but the relays were listed all over the interwebs as NLA. After pulling the existing ones I figured these would work for the job, having the same pin layout. Installed them and now this 32 year old generator starts with a flick of the switch!! WOO HOO!
James Cash
2025-07-03 21:37:04
These relays were an exact OEM replacement on my Monaco Dynasty. The Originals lasted 12 years on a coach used by full-timers. High quality at very low cost.
Gary L. Moore
2025-06-19 16:32:42
I paid more for a single so I did not have lots of extras lying around. The one I received had been returned. Beat up box with grease stains.
Timbo
2025-05-31 18:33:23
You cannot do better than a Bosch relay. I have used all others including Tyco and I can say that if you want a relay that will never fail under any circumstance buy the Bosch. Others I have used almost always fail, overheat, etc. Never had this with a Bosch. Put it in once and you will have no problems forever from that. I use them in pretty high draw situations with heavy duty components so not talking about any penny ante stuff.
T
2025-05-12 18:06:19
These relays are authentic Bosch relays and are not aftermarket fakes like some previous comments have indicated. Bosch was originally making these relays in Germany but have now switched operations to Portugal. Probably cheaper to make there. Time will tell if they are of poorer quality than the Germany made ones. But after I installed them they seem to work just fine. Hopefully they will last.
Cactus
2025-04-30 13:13:16
Worked like the last ones I bought
Bob
2025-01-06 13:17:58
Does not work very good, car cuts out with this relay installed, don't buy this it's not German made.
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