Mahle Rings GMC Pass 273 4.5L Eng 88 92 300 4.9L Eng 91 94 Plain Ring Set Unboxing Jak and Daxter Collector's Edition for PS4 by Limited Run. MAHLE(R) piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE piston rings lead the industry for the latest piston ring technology. This Part Fits: Year Make Model Submodel 1993 Cadillac 60 Special Base 1989 1992 Cadillac Allante Base 1990 1992 Cadillac Allante Value Leader 1988 1993 Cadillac Commercial Chassis Base 1992 1993 Cadillac Commercial Chassis Brougham 1988 1995 Cadillac DeVille Base 1994 1995 Cadillac DeVille Concours 1991 Cadillac DeVille Spring Edition 1991 1993 Cadillac DeVille Touring 1988 1993 Cadillac Eldorado Base 1988 1991 Cadillac Eldorado Biarritz 1993 Cadillac Eldorado Sport 1991 Cadillac Eldorado Spring Edition 1990 1993 Cadillac Eldorado Touring 1988 1992 Cadillac Fleetwood 60 Special 1988 1992 Cadillac Fleetwood Base 1988 1989 Cadillac Fleetwood Brougham Commercial Chassis 1988 1992 Cadillac Fleetwood d'Elegance 1988 1993 Cadillac Seville Base 1988 1993 Cadillac Seville STS