See the seller's listing for full details. If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. Condition:： New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). For reference, it has the Part No.2H1082. This part is excellent quality, manufactured in the UK and is suppliedNEW. TRIUMPH TR2, TR3, TR4, TR4A, TR5, TR6 FUEL TANK SENDER UNIT CORK SEAL 2H1082. Check to be sure the float arm can move freely and will not stick in a corner of the tank or against a vertical wall.TR4A TR5 TRIUMPH TR2 TR6 FUEL TANK SENDER UNIT CORK SEAL 2H1082 TR4 TR3 Mark the screw holes in the tank for easier alignment the flange will cover them and make them difficult to locate. When the gasket is aligned, mark it in relation to the flange, as it may turn while you are centering the screw holes to match the tank holes. Be sure to slide a new gasket into place under the flange, then align the gasket with the holes in the sender and in the tank. Install the new sender by lowering the float and float arm into the tank. One wire goes to the center pin on the tank sending unit, one goes to ground, and the third connects to a 12-volt source, normally the ignition switch. Next, remove the three wires on the back of the old gauge. Remove the screws that hold the sending unit to the tank and take it out. Note that if the gauge is grounded directly to a tab on the tank, there may be no ground wire.

Then disconnect both the sending wire and ground wire on the old sending unit. Turn off the power running to the boat’s systems before you disconnect any wires. Both wires lead to the back of the fuel gauge. There may also be a ground wire coming off a second post at the edge of the flange. The sending wire will come off a post in the center of the flange. Once you have cut the float arm to the correct length, fasten it with setscrews to the flange of the new sending unit that will be screwed into the top of the tank. A strong pair of wire cutters will work with most units, but some require a hacksaw. Next, trim the kit’s sending unit arm-they usually come in 24in lengths-and match it to the tank depth.

This measurement determines the length of the sending unit’s float arm.

First measure tank depth from the top of the tank, near the sending unit, to the bottom.

Triumph tr3a fuel sending unit