Technical diagram of the power head and rail options showing replacement parts for Genie garage door opener models: ProMax®: PMX300IC, PMX300IC/A, PMX300IC/B, PMX500/IC, PMX500IC/A, PMX500IC/B.
- 
             Enlarge Image Enlarge Image1 – Obsolete – Lens Cover 2 – 27332R.S - Front Wrapper 3 – Obsolete – Side Panel 4 – Obsolete – Top Plate 5 – 9541C.S – Strain Relief 6 – 32928D.S – Cord & Plug 7 – 33037R.S – Component Panel 8 – 27120K.S – Bottom Wrapper 9 – 30417A04.S – Screw, 8 x ¾ HX Hd Phil 10 – 27293A04.S – Screw, 8-11 x 5/8 11 – 27250A30.S – Screw, 8-18 x ½ 12 – 8706E04.S – Screw, 8-32 x 3/8 HHD Sltd Tap 13 – Obsolete – Light Socket 14 – 18004B.S – Capacitor, 50 MFD 14 - 19988A.S - Capacitor, 70 MFD 15 – 25760C.S – Capacitor Clamp 16 – Obsolete – Motor Bracket 17 – Obsolete – Screw, #10-24 x 50 18 – 32960R.S – Motor Assembly ½ HP 19 – 24121E05.S – Nut, 10-32 Hex Serr Flg 21 – 32989A.S – Circuit Board Bracket 22 – 32988A.S – Board Mount 23 – Obsolete – Screw, #10 x 5/8 24 - 35219A.S – Top Gear Housing 25 – 35220A.S – Middle Gear Housing 26 – 35221A.S – Bottom Gear Housing 27 – 33223A.S – Bushing, Drive Shaft 29 – 27091A.S – Limit Worm Gear 30 – 27092A.S – Limit Work Drive 31 – 27098A03.S – Drive Shaft Washer 32 – 24311B17.S – Retaining Ring 33 – 27096A.S – Main Drive Gear 34 – 32987A.S – Optical Interrupt Wheel 35 – 33221A.S – Motor Bushing 36 – 27087A.S – Motor Thrust Washer 37 – 27251A.S – Ply Thrust Washer 38 – 27090A.S – Drive Worm Gear 39 – 27255B04.S – Screw, 8-16 x 3-1/8, Self Tap 40 – 27249A.S – Limit Plate 41 – 27665A04.S – Screw, 6 x 3/8 Self Tap 43 – 27095A.S – Limit Cam 46 – 24173B04.S – Screw, #4 x 5/8 Self Tap Not Shown – 36521R.S – Receiver Board (/A Models) 
- 
             Enlarge Image Enlarge Image60 – Obsolete – Sprocket Bushing 61 – 27191A.S – Sprocket, 10 tooth, Chain 61 – 36220A.S – Sprocket, 18 tooth, Belt 62 – 8094C04.S – Screw, 10-24 x ½ HHW SL 63 – 27080B.S – Sprocket Bracket, Chain 63 – 28770R.S – Sprocket Bracket, Belt 64 – 8062C04.S – Screw, #10-24 x 3/8 Tap HHW 66 – 28773A.S – Pulley, Belt 67 – 27254A04.S – Carriage Bolt, 5/16-18 x 4 68 – 27291A04.S – Carriage Pin, 5/16 x 1-1/4 69 – 27360R.S – Pulley Bracket Assembly 70 – 27127A.S – End Bracket 71 – 24121C05.S – Nut, 5/16-18 Hex Serr Flg 71 – 22679A04.S – Nut, 5/16-18 Hex Jam 72 – 8091B04.S – Bolt, Lag, ¼ x 2 HHW 73 – 18295A04.S – Header Bracket 74 – 8115B17.S – Speed Nut 75 - 18586A04.S - Header Bracket Pin 77 – 27335A.S – Chain (0706) 27335B.S – Chain (0800) 27335C.S – Chain (1000) 78 – 27150A.S – Bullet, Chain 79 – 27175B.S – Carriage Slide 80 – 21123F.S – Emergency Release Cord (7-10ft models) 82 – 606E04.S – Cotter Pin, ¾ “ 83 – 5987J04.S – Clevis Pin 84 – 5973Q04.S – Screw, 3/8 x .87 Hx Hd Mch 85- 24121D05.S – Nut, 3/8-16 Hex Serr Flg 86 – 26013D.S – Curved Door Arm 87 – 26012D.S – Straight Door Arm 89 – Obsolete – Lock Washer, ¼ “ 90 – 19792A04.S – Door Bracket 91 – 8091B04.S – Bolt, Lag, ¼ x 2 HHW 605879.0001.S – 
 Screw, ¼ -20 x ¾ Self Drill94 – Obsolete – Carriage Release Assembly 95 – 27190A.S – Carriage Cap 96 – 27247D30.S – Screw, #10-16 x 5/16” 97 – Obsolete – Belt Not Shown – 28018A.S – Belt Bullet Not Shown – 20060A.S – Chain Master Link 
- 
             Enlarge Image Enlarge Image1 – Obsolete – Bolt, 5/16 x ¾ 2 – 8028P04.S – Screw, 5/16-18 x ½ HHD WSHR 3 – 606E04.S – Cotter Pin, ¾” 4 – 25999F.S – Pulley Support, Full Chain 5 – 22679A04.S – Nut, 5/16-18 Hex Jam 6 – 5987J04.S – Clevis Pin 8 – 18428B.S – Chain, 7’ 8 – 18428D.S – Chain, 8’ 9 – 21123F.S – Emergency Release Cord 10 – 25605R.S – Innerslide Kit 12 – 8115B17.S – Speed Nut 13 – 18295A04.S – Header Bracket 14 – 18586A04.S – Header Bracket Pin 15 – 8091B04.S – Bolt, Lag, ¼ x 2 HHW 16 – 36196A.S – Sprocket Saddle 17 – 8091B04.S – Bolt. Lag, ¼ x 2 HHW 18 – 19792A04.S – Door Bracket 19 – 26012D.S – Straight Door Arm 20 – 26013D.S – Curved Door Arm 21 – 5973Q04.S – Screw, 3/8x.87 Hx Hd Mch 22 – 24121D05.S – Nut, 3/8-16 Hex Serr Flg 23 – 27191A.S – Sprocket, 10 tooth 24 – 26004A.S – Bolt Retainer 25 – 26001A04.S – Pulley Bracket 26 – 26966D.S – Pulley Bracket 27 – 8026H04.S – Screw, 5/16-18 x 1.13 Hex HD 28 – 26002B.S – Pulley Bushing, Chain 30 – 8025D04.S – Screw, ¼-20 x 1 Hx Hd Washer 31 – 22441A04.S – Nut, ¼-20 32 – 8094C04.S – Screw, 10-24 x ½ HHW SL 33 – 8095A.S – Bolt, 5/16 x 2-1/4 Not Shown – 20456R.S – Pulley Support Kit Not Shown – 20060A.S – Master Link, Chain 
- 
                  
View Details  Inner Slide Parts Bag - 25605R.SRegular price $6.25 USDRegular priceUnit price per
 
 
               
                   
                   
                   
                  