Triumph Unit 650 Primary Cover Kit TR6 T120 1968-1972 PN# 70-9245-KIT


Availability: In stock

SKU: 633726155183 Categories: , OE Number: 70-9245Year: 1968-1972Make: TriumphModel: TR6C TR6R T120R Brands:

This comprehensive kit includes the primary cover and everything attached to it, with the exception of the cover screw set. Although correct for the 1968-1972 Triumph 650 models, the primary chaincase cover kit is compatible with the earlier unit-construction models where a provision for strobe-timing is desired. This kit can also be fit to the right-shift 1973-1974 Triumph 750 twin-cylinder models with the triplex chain primary drive when the necessary internal modifications are carried out.

Included in the kit is the primary chaincase cover and gasket, timing pointer, rotor inspection cover and gasket, (3) rotor cover screws, clutch inspection cap and o-ring, and the level plug and washer.The reproduction primary chaincase cover features a nicely polished finish, however, due to the manufacturing process, there may be some visible waves and minute pock-marks in the finished product. The cover is sourced from LF Harris in the UK.

Sealed by a gasket, the chaincase cover houses the alternator and primary drive system. When fitted to the 1963-1972 models with the duplex primary drive chain, there are no modifications necessary. When fitted to the 1973-1974 models with the triplex chain, reliefs must be carefully ground from the cover screw bosses in the interior of the cover to allow for the added width of the primary drive chain and clutch chainwheel. Additionally, a shorter timing pointer must be used to avoid scoring the alternator rotor.

The brake pedal and left-side footrest must be loosened or removed to allow the chaincase cover to be fitted into place. Cover screws are threaded directly into the drillings in the outer rim of the primary drive chaincase. The gaskets are necessary to seal the oil in the chaincase, and are fitted between the outer cover and the chaincase, and under the rotor inspection cover.


• 1 Primary Cover PN# 70-9245, 57-2439, E9245, T2439
• 1 Ignition Timing Pointer /Pin PN# 57-2443, 57-4643, T2443, T4643
• 1 Alternator Rotor Cover PN# 57-2440, 57-4645, T2440, T4645
• 1 Rotor Cover Gasket PN# 71-1457, 57-2442, E11457, T2442
• 3 Rotor Cover Mounting Screws PN# 82-4129, F4129
• 1 Billet Clutch Inspection Cap with O’ring PN# 57-2166, T2166
• 1 Leveling Plug with Copper Washer PN# 14-6101, DS57, 70-2441, E2441
• 1 Primary Cover Gasket PN# 57-1770, 71-1463, 71-7009, T1770, E17009, E11463


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