Summary

Had new Tandem pump fitted to my 2009 997.2 4S & decided to protect it from stone chips from the rear wheels. This would be a £600 swap every 4 years or so.
Will only fit tandem pumps that fit 997 gen2 engines (research for other models with same pump), will not fit 997 gen 1 as different pump fitted.
Used 30D synth rubber, use a small amount of silicon sealer on tandem pump end face to secure.