Cylinder Head

Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head – 2013 Subaru BRZ

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2013 Subaru BRZ

NHTSA ID Number: 10234913 Manufacturer Communication Number: 0215114R Summary Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head   NUMBER: 02-151-14 DATE: 04/22/14 REVISED: 09/23/14 APPLICABILITY: 2013MY BRZ SUBJECT: Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head   INTRODUCTION This bulletin announces … Read more

Cylinder Head Casting Design Change – 2012-2016 Subaru Impreza 2.0L & 2013-2017 Crosstrek

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2017 Subaru Crosstrek

NHTSA ID Number: 10187306 Manufacturer Communication Number: 02-169-17 Summary This Service Information bulletin outlines an enhancement made to the 2.0L cylinder head casting part numbers provided below.   NUMBER: 02-169-17 DATE: 07/18/17 APPLICABILITY: 2012-2016MY Impreza 2.0L Models 2013-2017MY Crosstrek SUBJECT: Cylinder Head Casting Design Change   INTRODUCTION: This Service Information bulletin outlines an enhancement made to the … Read more

Cylinder Head Bolt Torqueing Sequence – 2015-2018 Subaru STI

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2018 Subaru WRX STI

NHTSA ID Number: 10150935 Manufacturer Communication Number: 02-179-18 Summary This Service Information Bulletin announces a change to the procedure and sequence used for torqueing the cylinder head bolts on the EJ25 turbocharged engine used in the 2015-2018MY STI.   NUMBER: 02-179-18 DATE: 10/12/18 APPLICABILITY 2015-2018MY STI SUBJECT: Cylinder Head Bolt Torqueing Sequence- UPDATED   INTRODUCTION: This Service … Read more

Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head – 2014 Subaru Forester

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2014 Subaru Forester

NHTSA ID Number: 10232501 Manufacturer Communication Number: 0215214R Summary Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head   NUMBER: 02-152-14R DATE: 04/22/14 REVISED: 06/12/14 APPLICABILITY: 2014MY Forester Turbo SUBJECT: Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head   INTRODUCTION This bulletin … Read more