Herald Lucas Sealed Beam Part No.

[Jon J 1250]

Hi all,

I have the correct Lucas part catalog number but I am still struggling to find which type of 7" sealed beam unit was originally fitted to the Herald in 1965-ish, the catalog number doesn't really help with this.

The number I am looking for will be a 4 digit part number, something like  Powerbeam 7603 or 7033, but it is neither of those.

Does anyone out there know what it is?

Kind Regards
Jon

[Pete Lewis]

you would have to find a old new stock or SHand   sealed beams went bust  years ago in the 70s 

most would fit a bulb H4   lamp dont try LED  

its quite common the bulb units need a small alteration cutting a few mm on one of the location lug slots 

Pete

Edited November 13, 2023 by Pete Lewis

[Chris A]

I've a working set for a RHD 13/60 sitting in my boiler room - in Normandy

[Pete Lewis]

Chris  ever   helpful .......is that anywhere near Surrey   Ha !!!

Pete

[Colin Lindsay]

My Lucas units on the 1200 are 7603; I do have earlier ones but they have all sorts of code numbers, not an easy-to-spot four digit one.

[Jon J 1250]

6 minutes ago, Pete Lewis said:

you would have to find a old new stock or SHand   sealed beams went bust  years ago in the 70s 

most would fit a bulb H4   lamp dont try LED  

its quite common the bulb units need a small alteration cutting a few mm on one of the location lug slots 

Pete

Thanks Pete,

Yes I am looking to find some nos spares, they are certainly out there, but nobody advertises them as Triumph Herald headlights in the NOS world, so need to know specifically what they are.

Kind Regards
Jon

[Steve P]

Think I have a NOS one in my shed, I will have a look later.

S

[trigolf]

I have two s/h, but serviceable, Lucas sealed beam lights removed from a Herald. Free to a good home. I'm in Christchurch( Dorset).

Gav

[Steve P]

Mine are Wipac NOS, marked on the lens Wagner, Left and 7603.

 

[Pete Lewis]

there was nothing special about herald units  all std lucas p700 type 

used on so many other marques of british manufacture 

and to liven up the old glow worms  get a relay kit and get full voltage at the front of the bonnet 

saves the old switches and 14,5 volts is far more illuminating than the often 10.5 of voltage dropping 

Pete

Edited November 13, 2023 by Pete Lewis

[Chris A]

2 hours ago, Pete Lewis said:

Chris  ever   helpful .......is that anywhere near Surrey   Ha !!!

Pete

Funny you should mention Surrey, my last known address in the UK was New Malden.

[PeteH]

14 hours ago, Chris A said:

Funny you should mention Surrey, my last known address in the UK was New Malden.

Bet your glad your not there now?. It`s inside the ULEZ.😭

EDIT:- "Plum" has a pair of Lucas Sealed beams. but no visible ident:.

Pete

Edited November 14, 2023 by PeteH

[Chris A]

1 hour ago, PeteH said:

Bet your glad your not there now?

I've been glad for 30 years, although I'm not sure I'm "glad all over" 😉

[Colin Lindsay]

16 hours ago, Pete Lewis said:

there was nothing special about herald units  all std lucas p700 type 

used on so many other marques of british manufacture 

and to liven up the old glow worms  get a relay kit and get full voltage at the front of the bonnet 

saves the old switches and 14,5 volts is far more illuminating than the often 10.5 of voltage dropping 

Pete

I can't remember off hand but am I right in that the standards were 700, the uprated versions P700 and the luxury versions PL700? 

The very early versions had a plug-in bulb fitting, so you can uprate that and keep the glass standard on the outside.

[Jon J 1250]

This is type I have and is the original type you typically see on mid 60's heralds.
They have a distinctive diagonal pattern on them, which you don't see on most other Lucas or aftermarket 700 or 7XXX types.
Another feature is the 3 raised nibs arount the circumference at 2, 6 and 10 o'clock positions, but you do see that on other Lucas lamps too.
Having done some research I currently think these are Lucas 7010 sealed beam units.

It's impressive that these light units are still working and dimly lighting up the way ahead after nearly 60 years! lol

Edited November 15, 2023 by Jon J 1250

[Chris A]

This is the set up that were fitted to my 13/60 when I bought it. They work but I needed LHD units for France.

[Colin Lindsay]

58 minutes ago, Jon J 1250 said:

This is type I have and is the original type you typically see on mid 60's heralds.
They have a distinctive diagonal pattern on them, which you don't see on most other Lucas or aftermarket 700 or 7XXX types.
Another feature is the 3 raised nibs arount the circumference at 2, 6 and 10 o'clock positions, but you do see that on other Lucas lamps too.
Having done some research I currently think these are Lucas 7010 sealed beam units.

It's impressive that these light units are still working and dimly lighting up the way ahead after nearly 60 years! lol

Same as my estate, the code running downwards reads 10170, no idea what that number refers to but I think the actual part number may be 7285? eBay often has them for sale, both new and used.

[martin barlow]

Back in the day part number for sealed beam would be 7002 which was for any 7inch headlamp with a separate side light 7014 was the number for the same lamp with a clear part of the glass for a sidelight which would be attached to the side of the headlamp connector and 7025 would have a holder attached over the clear glass for a separate sidelight(ford fitting)-used to sell wholesale parts including lamps back in the early 80's and 7002s were about £2.50 plus vat!

[Colin Lindsay]

7002 was a common non-pilot lamp headlamp, (also used on Landrover where they had the Landrover number RTC3681), but any I've seen don't have the same zig-zag pattern, which are all marked 10170 and I haven't yet found the four digit reference number. Originals are nice but the modern repros seem to have a different beam pattern. Even companies which stock 'original' sealed beam units don't appear to have this version. The earlier non-sealed unit has a different pattern yet again, and of course the later halogen units are all of a more modern pattern.

[Jon J 1250]

I've now got one that is almost the same, the glass pattern is exactly the same, the Wattage is 75/50W, whereas the Triumph Herald version would be (i think) 60/45W.

It confirms the pattern to be Lucas Powerbeam 7010 (or 60-7010) which can be seen on the box and back of the light unit.

Checking my trusty Lucas 1965 Triumph parts book you can see the Herald Lucas part number should be 54521872 (for RHD), whereas the box of the sealed beam I have shows 54522480 (which I think is a Jaguar unit).

So there you go, if anyone is looking for an original sealed beam, it is a 7010 like the one pictured but with Lucas part no. 54521872 on the box.
I think I'll look out for another 75/50W version for a slight upgrade one day (with a fuse and relay).

If anyone has anything else to add please comment.
Jon

[Colin Lindsay]

I have a NOS set of Lucas 'Brighteyes', only 60/55 but a slightly different glass pattern. They still look period, more so than the Wipac or equivalent Halogen units which look too modern for my taste.