Motor is 04 225 FHLSRM. Been trying to figure out why my TPS would not read above 89% at wot and found that the plastic sensor arm on the TPS has a flat worn spot where it contacts the metal arm of the throttle cam; the throttle cam metal arm is also worn (surprisingly).

Any of the gurus know if part #0346040 ("cap") is a replacement plastic part for the sensor arm? Be great to buy this @$4 rather than a new TPS @$130. Thanks much and happy new year.