Pai 4150 Mack 745-235440 Bearing

Bearing Rear Crankshaft 55mm I.D. x 90mm O.D. x 18mm Wide Tu-Flo 500 / 550 / 700 Application

• Part number: DBG-4150
• OE MFG: MACK
• OEM Reference: 745-235440
• Cross Reference: CATERPILLAR : 7F2742; DANA CORPORATION/PRIVATE BRAND SALE : 550379, 550562; GMC TRUCK : 146725, 2939342, 903011, 9048903, 905599, 9411322, 9411749, 9413345; KENWORTH : K1562, K5361; MACK : 745-235440, 8235-1828N248; NAVISTAR : 147173H1, 173776H1, 173842R91, 205366R91, 205368R91, 303405R91, 303495R91, 3061231R91, 3061286R91, 3061287R91, 3067618R91, 316927R91, 317946R91; ROCKWELL (EXCEL PRODUCTS) : 1828-N-248; VOLVO : 181429, 183260, 6602959, 6629669, 6633313, 7181429, 7183260, 7183620; OTHER : 111, 223358, 225812, 235440, 44311, 6011, 6011-J, 956375
• Product Class: Air Compressors & Parts

The PAI DBG-4150 is a rear crankshaft bearing identified with a 55 mm inside diameter, 90 mm outside diameter, and 18 mm width for Tu-Flo 500, 550, and 700 applications. As heavy duty diesel truck parts, bearings support rotating shafts by maintaining controlled alignment and reducing friction within the compressor assembly. These dimensional details distinguish the bearing configuration for proper component matching. MACK lists 745-235440 as the OEM reference; additional cross-references include Caterpillar 7F2742 and Dana Corporation/Private Brand Sale 550379.