Triumph Throttle Shaft Bush Polyurethane (Sold as a Pair) 138490SP-SetA

Stock Status for This Item

Out of Stock; See ETA Tab for arrival date

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Throttle Shaft Bush Polyurethane Pair - 138490SP-SetA

Throttle shaft bush manufactured from SuperPro Polyurethane material used on CP TR5-6, 2.5PI throttle assembly and kits RTR4211-4215 series.

The SuperPro bearings reduce friction and will not break up in the way the originals do.

Please bear in mind that this bush is a direct replacement for the original part. On the throttle mechanism of CP TR5-6  and 2.5PI the central bush is assembled before the mechanism is welded together rendering it impossible to replace this bush, This why many throttle mechanisms are missing the central bush. The solution is simply to cut the bush through one side with a super sharp knife and feed the bush in until it engages in its bracket.

The outer bushes pop into their brackets quite easily and as these are outboard of the throttle levers welded to the shaft, they can be replaced with the shaft removed. 

You will receive 2 of these Bushes when you complete this purchase.

This item has a Shore Rating of : 90

Guide to Hardness Selection (The Rating is based upon the Shore Hardness Scale)

As a general guide the rating of 60 Shore will imitate original rubber parts hardness for your car.

50, 60, 70 Shore - Typically subframe mountings, replacement of pu foam shock mounts etc. where low NVH (Noise Vibration & Hardness) is a priority and situations where compliance is desirable.

80, 88 Shore - Typically wishbone, radius rod, non coil over shock eye bushes

90 Shore - Typically leaf spring eyes or more heavily loaded wishbones & radius arms, trunnion bushes where replacing rubber

95 Shore - Typically intensely loaded coil over shock bushes, trunnion bushes where replacing nylon.

To suit vehicles

Triumph Spitfire Mk1 - Mk3

Triumph TR5

Triumph TR250

Triumph TR6

Triumph Vitesse

TR Register