Push Rod for TR2-4A for standard high compression engines. 257mm long. Consider second hand original part 106968SH or for competition use RTR1155.

TR2-3B High compression 106968 Eng. No. 1-12960E, 114035 Eng. No. 12961E-55690E, 106968 Eng. No. 55691E on
TR4-4A High compression 106968
TR2-3B Low compression 108616 Eng. No. 1-12960E, 114048 Eng. No. 12961E-55690E, 108616 Eng. No. 55691E on
TR4-4A High compression 106968
Early High compression rods are 262mm long, 5/16" (7.94mm) diameter tubular type and later ones are 258mm long, 3/8" (9.52mm) Diameter which are much stronger. This later type is the type we now supply. 
Low compression push rods are rare and none were available when this explanation was compiled, but we suspect they would be about 3-4mm longer. All second hand push rods are kept under part number 106968SH

This part appears on the following Triumph Catalogue Plates

Car Type	Plate	Plate Title	Plate No.	Triumph Part Description	No per Unit
TR2	A	ENGINE: CYLINDER BLOCK AND HEAD	A61	Push rod assembly From Engine No. 1	8
TR2	A	ENGINE: CYLINDER BLOCK AND HEAD	A61B	Push rod assembly From Engine No. 55691E	8
TR3	A	ENGINE: CYLINDER BLOCK AND HEAD	A61	Push rod assembly From Engine No. 1	8
TR3	A	ENGINE: CYLINDER BLOCK AND HEAD	A61B	Push rod assembly From Engine No. 55691E	8
TR4	A	ENGINE: CYLINDER BLOCK AND HEAD.	A70	PUSH ROD ASSEMBLY High comp.	8
TR4A	A	83 m.m. and 86 m.m. ENGINE: BLOCK AND HEAD	A62	PUSH ROD ASSEMBLY	8