i GM4 78 f 1980 81 X THM125 A T PUMP CONTROL VALVE ASM M34 20 N S VALVE l 2 Shift 1 21 N S VALVE l 2 Throttle 1 22 N S SPRING Throt Vlv 1 23 N S BUSHING 1 2 Throt Vlv 1 24 I 4 265 BALL 6 3 1 147485 25 4 265 SPRING W Plug Low Blow Off 1 8631768 26 4 265 PLUG Low Blow Off Valve 1 8631449 27 8 900 BOLT Hex M6 x 1 x 25 1 28 4 224 COVER Pump W Sleeve 1 8631938 29 4 224 SLEEVE Pump Cover 1 8631288 30 4 226 PIN Slide Pivot 1 Q 8628273 31 N S RING Oil Seal Slide to Cover 1 2 32 N S SEAL O Ring 1 2 I 33l 4 224 SLIDE Pump 17 961MM 1 8631800 4 224 SLIDE Pump 17 974MM 1 f 8 631801 4 224 SLIDE Pump 1 7 987M M 1 I 8631802 4 224 SLIDE Pump 1 8 000MM 1 8631803 4 224 SLIDE Pump 18 013MM 1 8631804 34l N S SUPPOFIT Pump Slide SeaI 1 2 3Ei N S SEAL Pump Slide 1 2 36 N S RING Pump Vane 1 37 4 226 VANE Pump 1 8631280 38 4 224 ROTOR Oil Pump 1 7 949MM 1 8653961 4 224 ROTOR Oil Pump 17 962MM 1 8653962 4 224 ROTOR Oil Pump 17 975MM 1 8653963 4 224 ROTOR Oil Pump 17 988MM 1 8653964 4 224 ROTOR Oil Pump 18 001 MM 1 8653965 39 4 226 BEARING Pump Shf 1 8631277 40 N S SPRING 3 2 Valve 1 4 l N S VALVE 3 2 Control 1 412 8 970 PLUG I 1 16 Dia 1 43 4 216 SPRING Priming 1 8631717 44 N S BUSHINIG TV Boost Valve 1 45 N S VALVE TV Boost 1 45 N S BUSHINIG Rev Boost Vlv 1 47 N S VALVE Rev Boost 1 413 N S SPRINGi Press Reg 1 419 N S VALVE Press Reg 1 50 N S BUSHING TV P unger 1 51 N S PLUNGIER Throt V v 1 522 N S SPRINGi Throt Vlv 1 533 N S VALVE Thr0tt e 1 54 4 226 SEAL Clil Pump Dr Shf 8637569 NOTE 1 Part of 4 224 863 7957 PUMP W Control Valve Oil 4 CyI 1980 NOTE 1 Part of 4 224 8637958 PUMP W Control Valve Oil 6 CyI 1980 NOTE 1 Part of 4 224 8637959 PUMP W Control Valve Oil 4 Cyl 1981 NOTE 1 Part of 4 224 863 7960 PUMP W Control Valve Oil 6 Cyl 1981 NOTE 2 Part of 4 226 PUMP Slide Kit W Seals 1 1987 GENERAL MOTORS SERVICE PARTS OPERAT ONS OLDSMOBlLE 3 IA 1 7 87 4 89 4 000 GROUP