Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Oil Filter: All Technical Service Bulletins
Oil Filters - Enhanced Anti-Drainback Valves
GROUP REF.: 6 - Engine
BULLETIN NO.: 476118
DATE: June, 1994
SUBJECT:
ENHANCED PF52 AND PF1218 OIL FILTERS
MODELS:
1986-94 CHEVROLET AND GMC C/K, S/T, M/L, R/V, AND G MODELS
1991-94 OLDSMOBILE BRAVADA
THIS BULLETIN CANCELS AND SUPERSEDES BULLETIN 476502 TO CORRECT THE CATEGORY IDENTIFIER/GROUP REFERENCE.
PLEASE DISCARD BULLETIN 476502
(GROUP REFERENCE 6E- ENGINE FUEL & EMISSION).
AC Rochester will be supplying a limited number of new oil filters with enhanced anti-drainback valves to GMSPO. Oil filters with effective
anti-drainback valves may reduce or eliminate short duration cold knock. Due to limited production capacity, the new filters are only to be used on the
following special cases.
1. Trucks or vans with short duration cold knock.
2. Routine maintenance of 1994 trucks or vans. Use the existing PF52 (P/N 25012760) and PF1218 (P/N 25013977) oil filters for applications other
than the special cases listed above.
PART INFORMATION:
For "cold knock" vehicles or 1994 vehicle maintenance:
DESCRIPTION
PART NUMBER
REPLACES
PF52
25160560
PF51
PF1218
25160561
PF35
Parts are currently available from GMSPO.
