ATTENTION:
GENERAL MANAGER



PARTS MANAGER



CLAIMS PERSONNEL

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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

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© 2020 Subaru of America, Inc. All rights reserved.

SERVICE BULLETIN
APPLICABILITY:

SUBJECT:

2016-18MY Forester 2.0L DIT
2017-19MY WRX
2019-20MY Ascent

NUMBER: 11-195-20
DATE: 01/30/20

PCV Vacuum Hose Assembly- Design Change

INTRODUCTION:
This bulletin announces availability of a new vacuum hose assembly for the positive crankcase
ventilation (PCV) system incorporating improved sealing to prevent potential oil seepage which
could come from the connection point. Whenever oil seepage is confirmed at the connection point,
always replace the Male section. The female section does not always need to be replaced unless
damage is confirmed.

FEMALE Side

MALE Side

PRODUCTION CHANGE INFORMATION:
The new PCV hose set was incorporated into production starting with the following VINs:
Model

Starting VIN

WRX

K9828069

Ascent

L3412779

CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.

Subaru of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of automotive
products in a manner that is friendly to our
environment and in accordance with all
local, state and federal laws and regulations.

Continued...
Bulletin Number: 11-195-20; Date: 01/30/20

Page 1 of 2

PART INFORMATION:
Description

Part Number
99031AA031

HOSE ASSEMBLY-VACUUM

99031AA021

Application

Notes

Forester DIT,
WRX

Male Side

11815AC89B

Ascent

99031AA021

Female Side
Male Side
Female Side

NOTES:
• Both Male and Female sections of the hose (with connectors installed) are available
separately.
•

Always replace the Male section whenever oil seepage is confirmed at the connection point.
The female section does not always need to be replaced unless damage is confirmed.

•

Always order the most up-to-date replacement parts based on the specific VIN being
repaired.

SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
The service procedures for replacing the PCV hoses remain unchanged. Always refer to the
applicable Service Manual and review the full requirements of the repair being performed. The
Service Manual procedures contain information critical to performing an effective repair the first
time and every time. This includes but is not limited to: important SAFETY precautions, proper
inspection criteria, necessary special tools, required processes and related one-time-use parts needed
for a complete and lasting repair.
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited or Emissions Limited Warranty period, this repair
may be submitted using the following claim information:
Labor Description

Labor
Operation #

CRANKCASE VENT HOSE R&R

A456-231

Labor Time
0.3
1.8

Fail
Code
HCG-34

Applicability
2019-20MY Acsent & 16MY Forester DIT
2017-18MY Forester DIT & 2017-19MY WRX

IMPORTANT REMINDERS:
•

SOA strongly discourages the printing and/or local storage of service information as
previously released information and electronic publications may be updated at any time.

•

Always check for any open recalls or campaigns anytime a vehicle is in for servicing.

•

Always refer to STIS for the latest service information before performing any repairs.

Bulletin Number: 11-195-20; Date: 01/30/20

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