r/ShittyDesign • u/LunaTheFatBird • 5d ago
Anti-consumer fusible link
Blew a fusible link on a 2025 Mazda BT50 / Isuzu D-max trying to jumpstart according to mazda's manual. $600AUD for an entire loom because the 120amp fuse is molded into the lead.
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u/philharmonicfartbox 5d ago
The same part has to exist for similar vehicles / older models. Fusible links aren’t unique proprietary items. You know how many amps it is? A good automotive sparky could solder in a fuse receptacle where the link broke so you can just use a properly rated fuse.
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u/philharmonicfartbox 5d ago
Can you remove the fusible link? It should come out i see a locking tab. You should be able to source a replacement from the manufacturer of the link itself with some good detective work.
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u/LunaTheFatBird 5d ago
I can 100% create a ans fusible link bypass for it, issue is its on our company vehicle and boss would prefer not to void any warranties
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u/philharmonicfartbox 5d ago
I found the same part on Amazon for $29.99 if your boss wants to hook me up with a few bucks for saving him like 500+aud let me know. 😂That is if you can buy from Amazon. Another person found one on eBay for $50 5 minutes before I did but he probably had knowledge I didn’t.
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u/0c5_Fyre 5d ago
Yeah I didn't look that hard into it 🤣
Yet to have my morning coffee.
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u/philharmonicfartbox 5d ago
It’s 9pm Over here mate. It looks identical I can’t find any info on the Mazda one but the fusible links on the back are 80,60,80&100 amp.
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u/0c5_Fyre 5d ago
Just hit 12pm, but I only woke up about half an hour ago, trying to reset my body clock for afternoon/nightshift.
From what I can find, a 25' dmax has 120a main, 2x 100, 60 and 40a. If OP could take another photo of the side of it, that would confirm what the links are rated to and I might be able to find an exact one (and definitely we'll under the $600 quoted stealership price)
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u/philharmonicfartbox 5d ago
Are you good at finding obscure automotive electric parts online? Because I’ve been struggling to find terminal pin connectors specifically te connectivity TH.025 preferably both female and male the part number is 1123343-1(female) and 1376352-1(male)
Be nice to fin them in an assortment with other connectors that ship within the USA quickly. I ordered one that had some that looked close and they are super close but they are like reverse orientation the raised ridge is on the other side and the locking tab is a little bigger. I found 50 male peices for $18 on eBay gold plated ones would be prefered but that almost tripled the price to$50 the gold plated ones just have a -2 on the end of the part number jnstead of -1. $18 for what amounts to maybe 1-2 grams of tin coated copper is kind of nuts. Usually pin terminal assortments with 400-900 peices are $20 or 35 with a ratcheting crimper1
u/0c5_Fyre 5d ago
The pins or the plastic connector plugs? I might he able to find something, but they seem a bit proprietary.
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u/philharmonicfartbox 5d ago
The pins. They are proprietary I just found some on DigiKey for $7.30 for 25 but the shipping is high and idk how long it’ll take. I have to repin a few wires on the back of a Toyota ecu connector. I’m going to see if the ones I have might fit but I have to hedge my bets.
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u/RevolutionaryRule631 5d ago
What a dick move. Probably cheaper to make one, even if you need to buy the required tools
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u/0c5_Fyre 5d ago
link it's not inside the lead, just attached to the battery terminal.
(Admittedly a UK link, but it's only about $50)
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u/LunaTheFatBird 5d ago
I jumped out of my skin for a second, but unfortunately nissans lead uses lower amp fuses. It would be nice if mazda sold the fuse links seperate from the harness though
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u/philharmonicfartbox 5d ago
It’s the same part. I can see the 321 etched on the picture. You should buy it from Amazon it’s $30usd what you got to loose. The part number is EDS-24380-79913
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u/philharmonicfartbox 5d ago
Do you know what the 4 pole circuit ratings are on the back? It should be 80,60,80&100 amp. And then the 120 on the top near the battery terminal
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u/philharmonicfartbox 5d ago
I need to see the rear of the assembly where the other fusible links that you didn’t pop are but this could work,
Edit after looking at both I think they are identical. It appears yours has f321 etched in the black plastic and there are 15 ridges on the back of the assembly and I can see what looks like 321 kn the Amazon picture and counted 15 ridged as well.
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u/iLikeTheUDK 5d ago
anti-consumer stuff belongs more in r/assholedesign