Flasher Relay Differences

So what’s the difference between these two relays please? I ordered a PRC8876 as a direct replacement, but got sent the Lucas SFB191 as a compatible part. Whilst it’s fixed my fuses blowing, it’s missing the ‘+5w & +2x5w’ part. Is this for the trailer socket circuit?

3x21w is motor front/rear & trailer
1x5w side repeater

Hicap phill said:

3x21w is motor front/rear & trailer
1x5w side repeater

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Cheers mate, looks like I’ll be sending that one back then.

Looking at the Lucas.The 6x21w is for all the indicators Like when you put on the hazards.
It should work ok without the 5w.
It's hard trying to get a relay that works on the early motors.

Hicap phill said:

Looking at the Lucas.The 6x21w is for all the indicators Like when you put on the hazards.
It should work ok without the 5w.
It's hard trying to get a relay that works on the early motors.

Click to expand...

I’ve fitted it for now as I need indicators, but the trailer tell-tale lamp now flashes with the indicator tell-tale and I’m not sure how it’d function with the trailer attached ( could just try it I suppose! ). I’ll just get one that matches the numbers on the original and see what happens.

Trailer tell tale should/does flash once when indicating normally.
When the trailer is connected it creates more resistance & this will then flash the indicator & tell tale together.

Hicap phill said:

Trailer tell tale should/does flash once when indicating normally.
When the trailer is connected it creates more resistance & this will then flash the indicator & tell tale together.

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It used to flash once and then off and not at all when the trailer was connected. I’m going to investigate further as I’ve just been out and the trailer tell-tale is only about 1/2 as bright as the indicator. I’ve got some new indicator assemblies arriving so I’ll clean up the trailer socket at the same time.
Thanks for the input.

THE ORIGINAL PRC8876 IS ELECTRONIC USUALLY FOR WHERE LEDS ARE USED https://www.ebay.co.uk/itm/Flasher-Relay-for-Range-Rover-Classic-Landrover-PRC8876-/142555110561

mystery said:

THE ORIGINAL PRC8876 IS ELECTRONIC USUALLY FOR WHERE LEDS ARE USED https://www.ebay.co.uk/itm/Flasher-Relay-for-Range-Rover-Classic-Landrover-PRC8876-/142555110561

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Thanks for the link, I was struggling to find an original. However, these are not suitable for leds as there’s not enough resistance to make the relay work properly, an adjustable relay is used in this situation (as far as I know, as I don’t have leds).

TRY https://www.ebay.co.uk/itm/Land-Rov...819238&hash=item5b53f97d1a:g:GOAAAOSwKgtceVzy

Reet, the ‘new’ genuine relay (PRC8876) has sorted the weirdness, still no hazards, but I suspect the switch is shot, waiting for a new one in the post.