Bongo Fury

I need new vacuum solenoid is it just the first row of numbers that matter or all 3 rows ?

Plenty available https://www.google.co.uk/search?num=100 ... m+solenoid

There are plenty on the first lot of number off the solenoid but when you add all 3 rows of numbers there isn't any this is why I'm asking if the second and 3rd row of numbers matter.

Well there is usually the actual part number, a batch number and a date code, but if you don't show or tell us which one or the numbers then there isn't a lot we can do to help! Take a picture or at least give us the code numbers are just compare with the ones advertised either on Google or from the normal suppliers list;
These companies do a range of spares, not all will have everything so try them all;
For smaller parts its probably best to ring companies as not all the smaller parts make it on to the web sites!
SPARES:
Bongo Land www.bongoland.co.uk/shop/ 0114-2550836
Mazda Bongo www.mazdabongo.com/ 01234-480808
Bongo Spares www.bongospares.co.uk/ 01422-823249
Vosper Parts https://vospersparts.com/ 01752-636494
Auto Jap Spares www.autojapspares.com/ 02476-474848
AutoLinkUK www.autolinkmx5.com/ 01556-509088
SALES & SPARES;
Ian Taylor UK (Stoke on Trent) www.japcarimport.co.uk/ 01782-594125
Southern Bongos (Southampton) www.southernbongos.co.uk 02380-733995
Stephen McWhirter Services (Cumbria) www.stephenmcwhirter.co.uk/ 07585-304362
Dore Service Station (Sheffield) doreservicestation.co.uk/ 0114-236-4691
Discount Trucks (Newbury) www.disctrucks.f9.co.uk/ 01635-254185
Fred the Bongo Man (Newbury) https://www.fredthebongoman.co.uk/ 077757 34328
Derwenthaugh Motors (Newcastle) www.derwenthaughmotors.co.uk/ 07596-862711
Bongomaster (Leicester) www.thebongomaster.co.uk/ 07873-314519
BREAKERS:
Milton Gough's Shaw Lane Carlton, Barnsley, United Kingdom. 01226 725356 www.facebook.com/Miltongoughs
Bongo Parts https://www.bongo-parts.co.uk/ 01403-741913

I thought I had uploaded a photo sorry.
The numbers K5T49091 KL01 6521

K5T49091 is the part number and a Google as before gives suppliers https://www.google.co.uk/search?q=K5T49091