Spicer TPCS Hub Cap Vent Plug Redesigned - Manual

Spicer ®
Axles & Brakes
ABIB-0301
Information Bulletin
Bulletin Type: Parts / Service Information
Topic: TPCS Hub Cap Vent Plug Redesigned
Affected Models: Dana Part-No: 673863
The TPCS hubcap vent plug assembly, Dana P/N 673863 has been redesigned. This design improvement provides
greater resistance to water ingestion and contamination resulting from high-pressure wash direct spray. This change also
improves serviceability, providing easier removal and installation when adding wheel end lube via the vent plug.
Lube Note: To obtain the proper level of lube it is recommended that the procedure in AXSM-0010 page 37 be followed.
The new vent plug assembly is currently available and is compatible with existing TPCS hubcap assembly 673526.
Revised TPCS Hubcap Vent Plug Assembly: 673863
Item 1: New Design Vented Window Plug – Identified as P/N: 676520 -NSS
(Replaces previous design part identified as P/N: 673421)
Item 2: Check Valve – NSS
Item 3: Washer – NSS
NSS – Not Sold Separately
For spec’ing or service assistance, call 1-800- 24 hours a day, 7 days a week
Or visit our web site at: www.spicerparts.com
Dana Corporation
Copyright Dana Corporation, 2003 Commercial Vehicle Axle Division
February 2003 All Rights Reserved. P.O. Box
Printed in U.S.A. www.dana.com 7ROHGR2KLR