Way to bypass a relay?

[Ky1200]

I have a New Holland 1920 tractor that needs a relay, New holland part #SBA385230220. I was floored when the price for this little piece is $174.00. Is there any workaround? Even if it's a larger relay or ? ?? Crazy to have to pay that much just to start the tractor by the key switch.....
thanks for any info

cliff

 

[EarPlug]

Usually a relay is used to switch a high power/amperage circuit with low voltage. So bypassing is not easy. If it your Starter Relay it is not that expensive

New Holland 1920 starter relay - Google Search

 

[jigs_n_fixtures]

I have a New Holland 1920 tractor that needs a relay, New holland part #SBA385230220. I was floored when the price for this little piece is $174.00. Is there any workaround? Even if it's a larger relay or ? ?? Crazy to have to pay that much just to start the tractor by the key switch.....
thanks for any info

cliff

Have you tried going to the local parts houses with the relay in hand, and see it they can match it up. A lot of the factory parts are a bit very over priced. I get most of my miscellaneous engine related parts, not as TYM branded parts, but asking the guys at the parts house for what will work on the Mitsubishi S3L, engine in the tractor.

 

[5030]

I have a New Holland 1920 tractor that needs a relay, New holland part #SBA385230220. I was floored when the price for this little piece is $174.00. Is there any workaround? Even if it's a larger relay or ? ?? Crazy to have to pay that much just to start the tractor by the key switch.....
thanks for any info

cliff

Try Digikey or Dell electrical. I bet they will have exactly what you want at a much better price. Had the same issue with my AC relay's for my Kubota M series. Kubota wanted over a hundred bucks each (takes 2) and Digikey had them for 10 bucks each. Same exact relay, same catalog number, exactly the same. I even bought a couple extra and gave them to my dealer so he could install them as the AC relays are prone to failure on the Kubby cab models.

I have zero issues buying OEM so long as the price is reasonable. When it's stupid, I look elsewhere. Just match the catalog number on the relay. Relay's, like bearings all have a specific identifier number on them.

 

[jigs_n_fixtures]

I have a New Holland 1920 tractor that needs a relay, New holland part #SBA385230220. I was floored when the price for this little piece is $174.00. Is there any workaround? Even if it's a larger relay or ? ?? Crazy to have to pay that much just to start the tractor by the key switch.....
thanks for any info

cliff

Entering the part number and New Holland in the Amazon search gets one for $45. But with a bit of wiring you can make most any starter relay work. But a relay base and new relay may be close to the $45.

Basically a four pin relay has a ground, a control feed, power in, and power out. Unless space is at a premium, you can wire in any relay with high enough amperage capacity.

 

[toot77]

You can replace that relay with a standard 12 volt automotive relay, but you also need to replace the socket with one for the standard auto relay. Get a std relay with a harness. This is less than $10 on Amazon.

You need to remove the wire pigtails from the new relay socket. Then remove the wires from you tractor's relay socket and you then insert the tractor's wires into the new socket. You need to get the tractor's wires in the correct space on the new socket. If I recall correctly, the original relay had a wiring diagram on it, as do most auto relays so identifying where the each wire goes should be straight forward.

Use a very small flat blade screwdriver to remove the wire's from the connectors.

This is what I did on my 1520 when that relay failed several years ago.

 

[mrmikey]

As toot77 said. Get a Bosch relay off Amazon, match the pinouts and you're good to go, $174 for a simple relay is ridiculous.
I f you don't want to modify the wiring harness, add some male spade ends to the new plug and plug it in to where the relay went.
Here's the pinout diagram so the coil connections would go to 85 and 86 on the new one, common would go to 30 and NO would go to 87

 

[Ky1200]

As toot77 said. Get a Bosch relay off Amazon, match the pinouts and you're good to go, $174 for a simple relay is ridiculous.
I f you don't want to modify the wiring harness, add some male spade ends to the new plug and plug it in to where the relay went.
Here's the pinout diagram so the coil connections would go to 85 and 86 on the new one, common would go to 30 and NO would go to 87
View attachment 3451421

this looks like exactly what I will be doing, thank you

 

[Ky1200]

Thanks to all who took the time to answer... really appreciated and it will solve my question easily.... I'm going with tool77 and mrmikey's posts ..
thanks

 

[jigs_n_fixtures]

Be careful with installing a Bosch cube style automotive relay. They are typically rated at 30-Amps.

The starter will pull 100 to 300-amps. And, could easily burn out the contacts on a standard automotive relay.

Look for a starter relay, with a high enough Amp capacity to handle your starter.

This, or something similar. https://www.amazon.com/gp/aw/d/B08F...d_r=f2416631-751a-4bfa-b069-9fb584d0980b&th=1

 

[CalG]

Be careful with installing a Bosch cube style automotive relay. They are typically rated at 30-Amps.

The starter will pull 100 to 300-amps. And, could easily burn out the contacts on a standard automotive relay.

Look for a starter relay, with a high enough Amp capacity to handle your starter.

This, or something similar. https://www.amazon.com/gp/aw/d/B08F28SKX1/?_encoding=UTF8&pd_rd_plhdr=t&aaxitk=8d28fdd4a5c32db17fdb14eb94f0cd58&hsa_cr_id=3677317210701&qid=1747452286&sr=1-2-9e67e56a-6f64-441f-a281-df67fc737124&ref_=sbx_be_s_sparkle_dlcd_asin_0_title&pd_rd_w=tMLc4&content-id=amzn1.sym.8591358d-1345-4efd-9d50-5bd4e69cd942:amzn1.sym.8591358d-1345-4efd-9d50-5bd4e69cd942&pf_rd_p=8591358d-1345-4efd-9d50-5bd4e69cd942&pf_rd_r=5ANAAWA00CZ73T4RQ5MG&pd_rd_wg=R6CzW&pd_rd_r=f2416631-751a-4bfa-b069-9fb584d0980b&th=1

THIS IS VERY IMPORTANT!

 

[mrmikey]

Be careful with installing a Bosch cube style automotive relay. They are typically rated at 30-Amps.

You are correct for sure but I'm pretty sure the original relay would be used to control the starter relay. There'd be no way to physically get 1-200A contacts into that small of a package. I'm thinking just to pull the starter relay contacts in you're probably in the 4-10A range, something they wouldn't want to put thru an ignition switch. These are just my thoughts from years of screwing around engines so I stand to be corrected.

 

[Mike1955]

Wire size on the component should be indicative to the amp draw

 

[WranglerX]

Be careful with installing a Bosch cube style automotive relay. They are typically rated at 30-Amps.

The starter will pull 100 to 300-amps. And, could easily burn out the contacts on a standard automotive relay.

Look for a starter relay, with a high enough Amp capacity to handle your starter.

This, or something similar. https://www.amazon.com/gp/aw/d/B08F28SKX1/?_encoding=UTF8&pd_rd_plhdr=t&aaxitk=8d28fdd4a5c32db17fdb14eb94f0cd58&hsa_cr_id=3677317210701&qid=1747452286&sr=1-2-9e67e56a-6f64-441f-a281-df67fc737124&ref_=sbx_be_s_sparkle_dlcd_asin_0_title&pd_rd_w=tMLc4&content-id=amzn1.sym.8591358d-1345-4efd-9d50-5bd4e69cd942:amzn1.sym.8591358d-1345-4efd-9d50-5bd4e69cd942&pf_rd_p=8591358d-1345-4efd-9d50-5bd4e69cd942&pf_rd_r=5ANAAWA00CZ73T4RQ5MG&pd_rd_wg=R6CzW&pd_rd_r=f2416631-751a-4bfa-b069-9fb584d0980b&th=1

Typical a starter relay is used to operate the solenoid on starter I have grave and serious doubts a solenoid draws 100-300 amps to operate..... But then the solenoid has a contact set that can handle the 100-300 amps the starter motor needs to spin up....

Lets not miss comprehend relays and solenoid functions.... Diagram is typical but not absolute as manufactures use some different variations...

 

[CalG]

Perhaps a better way to phrase the warning is that these cube style relays do come in various current carrying ratings.

Choose the rating that is correct for your application for best results.

I've got a box of them out in the shop....;-)

 

[dstig1]

I don't see that the OP says it is a starter relay, but most seem to be assuming that. Do we actually know this to be true?

 

[WranglerX]

IF you read post #1 again the buzz word phrases are "needs relay" and "to start tractor"... Makes one guess its a "starter relay"....

 

[toot77]

The relay (SBA385230220) referenced in the OP's question does not carry starting motor current. SBA385230220 is commonly referred to as a safety start or neutral start relay. The NO contacts of this relay is in series with the ignition switch which energizes the starter solenoid. The coil of SBA385230220 is energized by limit switches which must all be closed in order for the starter to operate, i.e. clutch pedal & pto's, etc..

A standard Bosch type automotive relay is adequate for this application and has been in place and working as a replacement on my 1520 for about 5 years now. Due to the different terminal configuration I also changed the relay's socket. The SBA385230220 terminals are labeled so I just moved the two wires that were connected to the terminals labeled 'COIL' to my replacement relay terminals 85 & 86, and moved the wire on 'COM' to 30, and 'NO' to 87. I did not cut, splice, or change the oe spade connectors on any of the wires.

 

[Williy]

If it was me I would take the relay apart clean the contacts
solder the contacts with silver solder file them smooth

willy

 

[Dftodd]

I haven't read the whole thread. But the auto parts store sells relays. So you may be able to take the relay into the store and match it up.

They also sell relay bases as well.

I had a piece of equipment that had relays built into a fuse block and the relay portion of the fuse block rusted out.

I just looked up the diagram for the relay in the fuse block so I could figure out how to wire up the after market relay and base I purchased from the auto parts store.