Triumph Unit 750 twin rocker box rebuild kit 1973-1980


This kit is designed to service rocker boxes on all Unit 750 Triumph engines from 1973 to 1980. This gasket set has been made with the highest quality materials and technology currently available.

750 Unit Twin 1973-1980 (6 bolt covers)

This kit includes: 2 AFM rocker box gaskets ( 71-2599 or E12599 )

2 AFM rocker box inspection covers ( 71-3673 or E13673 )

4 rocker oil feed copper washers (70-1335 or E1335 )

2 rocker shaft O rings ( 60-3548 or D3548 )


These gaskets were proudly manufactured in the USA, with materials from the USA by Cleveland GasketĀ®

These are aluminum core with a nitrile rubber bonded to both sides. This AFM gasket material has excellent temperature resistance, torque retention, and compression.

No sealant of any type is needed, and due to the high rate of recovery when disassembled,
in most cases the gaskets can be reused.
These gaskets have been tested both on the street and at the Bonneville Salt Flats, and have been proven to be superior to anything available in fit or function.
There will be no pink, green, or blue gasket material hanging over the edge of your rocker box.

There will be no drama or discussion about which sealant to use and how to apply it.

These 750 unit rocker box gaskets replace Triumph part # 71-2599 or E12599, and are .032" thick.