Triumph Spitfire Mk3 Mk4 Early 1500 Cunifer Brake Line Kit Copper Nickel Alloy on 2040-parts.com

This kit does not fit the later Spitfire 1500s with the small cap metric master cylinder.

Plated steel tube nuts are used in this brake line kit to avoid the problems with brass nuts.(see below)


More information:


          Any older vehicle can have dangerously rusted brake lines. A rusted brake line bursts usually when you need it most, during a panic stop, when the line pressure is high. I have experienced this and I can tell you that it is not pleasant. Car manufactures use mild steel line because it is inexpensive, there is no other reason. Please inspect your lines for visible signs of rust on any older car you own. Brake lines can become dangerously rusted in as little as 3-5 years in a northern climate. Be aware that lines can also rust on the inside, although external rust is more common.

          While your vintage car is not likely to be driven in adverse salty conditions (or maybe it is) it is still worthwhile to use Cunifer line. It is easy to form. No special bending tools are required, just your hands and a little bit of patience can produce beautiful results. A prebent stainless steel kit should only be considered in a car that is all apart for restoration, as it can be difficult to unbend prebent stainless steel in order to fit it into an assembled car. Cunifer line can be easily snaked through an assembled car and formed in place. Please make no mistake, this is not wimpy pure copper line, it is a copper-nickel-iron alloy hydraulic line which is DOT approved for brake systems.

Please also note that this is real Cunifer line 90-10 ( 1% iron) copper nickel alloy line which is made in England and has a wall thickness of .028 inches. There are other manufactures of less expensive copper nickel line which have popped up recently with a significantly thinner wall thickness and some with significantly different alloy content. Somehow the thinner line claims to have the same burst strength and actually be more resistant to puncture than real Cunifer while at the same time having the same alloy content. Think about that for a moment.  In addition to the thin wall line I have also inspected some other copper alloy line recently made in India or China that can be picked up with a magnet!




Even more information:

From my website:

The copper nickel alloy line which are in these brake line kits was developed by Volvo
to increase the safety of their cars. We are the beneficiaries. The line is harder than
pure copper due to the alloy component, but still nice and soft for flares. It makes a
superior flare seal because copper alloy line squishes to make an excellent seal. Sealing
can be achieved without over tightening the tube nuts and stripping out the threads.
Copper nickel line does not rust and can be polished quickly with 0000 steel wool.
You can form the line with your hands. Beautiful 90 plus degree bends can be made
with out special tube benders. This line is made in England and is DOT approved for
the US market.  

Some brake line kits are supplied with brass tube nuts. Although this seems like a good idea at first,
in practice the brass nuts cause problems. The mechanic often tries to tighten the tube
nut if the line is weeping. Brass tube nuts have a tendency to do two things: the hex
flats round off the nut and the nut can mushroom at the end in contact with the flare.
The mushrooming causes great difficult in removing the line from the brake part. In
more serious cases the mushroom develops a split and causes nut failure.  Plated steel
tube nuts are used in this brake line kit to avoid the problems with
brass nuts.




Shipping by USPS priority mail is a fixed price for the united states.

International Shipping:  The price shown is for first class mail (regular post). In order to meet the size restrictions the box must be very minimal with no insulation. Have not had a problem yet, but If you would like better packaging please ask for Priority mail which is more expensive.