Exploded View
Heavy Motions’ new HM542 power take-off series is designed to work with the most popular medium and heavy duty transmissions. Our HM542 series replaces the 442 series 6-bolt mount PTOs with standard and deep mount, direct and remote pump mount in a wide range of gear ratios. They are 100 % interchangeable, part by part. We also offer spare parts : housings, gears, shafts, shifters, valves, repair kits and more.
Parts in Stock
| Heavy Motions ® | Chelsea® Reference Number | Description |
| HM1P557X | 1-P-557X | Standard Mounting Housing Assembly |
| HM1P558X | 5-P-558X | Deep Mount Housing Assembly |
| HM2P559 | 2-P-559 | Output Ratio Gear (Q/R) |
| HM2P726 | 2-P-726 | Output Ratio Gear (F) |
| HM2P560 | 2-P-560 | Output Ratio Gear (U) |
| HM2P561 | 2-P-561 | Output Ratio Gear (W) |
| HM2P637 | 2-P-637 | Output Ratio Gear (S) |
| HM2P727 | 2-P-727 | Output Ratio Gear (L) |
| HM2P728 | 2-P-728 | Output Ratio Gear (X) |
| HM3P282 | 3-P-282 | Output Shaft Direct 7/8” – 13 Tooth |
| HM3P202 | 3-P-202 | Output 1-1/4” Keyed |
| HM500007-29 | 500007-29 | Key, Woodruff |
| HM378391 | 378391 | Retaining Ring |
| HM550397 | 550397 | Bearing Cone |
| HM550532 | 550532 | Bearing Cone |
| HM22P127-1 | 22-P-127-1 | Gasket 0.010” |
| HM22P127-2 | 22-P-127-2 | Gasket 0.020” |
| HM22P127-3 | 22-P-127-3 | Gasket 0.015” |
| HM328274X | 328274X | Bearing Cap Assembly |
| HM328333X | 328333X | Flange Assembly |
| HM328273X | 328273X | Bearing Cap Open End |
| HM378447-6 | 378447-6 | Capscrew |
| HM378447-8 | 378447-8 | Capscrew |
| HM28P216 | 28-P-216 | Shaft Seal |
| HM5P1004 | 5-P-1004 | Input Gear (AH) |
| HM5P1015 | 5-P-1015 | Input Gear (BG) |
| HM5P1037 | 5-P-1037 | Input Gear (DA) |
| HM5P1059 | 5-P-1059 | Input Gear (ES) |
| HM5P1077 | 5-P-1077 | Input Gear (FAH) |
| HM5P964X | 5-P-964X | Input Ratio Gear (L) |
| HM5P965X | 5-P-965X | Input Ratio Gear (Q) |
| HM5P966X | 5-P-966X | Input Ratio Gear (S) |
| HM5P967X | 5-P-967X | Input Ratio Gear (U) |
| HM5P968X | 5-P-968X | Input Ratio Gear (W) |
| HM5P969X | 5-P-969X | Input Ratio Gear (X) |
| HM5P1214X | 5-P-1214X | Input Ratio Gear (R) |
| HM379522 | 379522 | Retaining Ring |
| HM550439 | 550439 | Bearing Cone |
| HM14P-73-1 | 14-P-73-1 | Spacer 0.149”-0.151” |
| HM14P73-2 | 14-P-73-2 | Spacer 0.152”-0.154” |
| HM14P73-3 | 14-P-73-3 | Spacer 0.155”-0.157” |
| HM31P102 | 31-P-102 | Thrust Washer |
| HM9P88 | 9-P-88 | Idler Shaft |
| HM28P191 | 28-P-191 | O-Ring |
| HM379672 | 379672 | Plug |
| HM35P8 | 35-P-8 | Gasket |
| HM329361X | 329361X | Air Shifter |
| HM379639 | 379639 | Indicator Switch |
| HM35P9-1 | 35-P-9-1 | Mounting Gasket 0.010” |
| HM35P9-2 | 35-P-9-2 | Mounting Gasket 0.020” |
| HM379640 | 379640 | Connector |
| HM328356-13X | 328356-13X | Gasket and Seal Kit |
| HM328594-13X | 328594-13X | Bearing and Spacer Kit |
| HM328948-6X | 328948-6X | Gasket and Installation Instructions |
| HM328170-76X | 328170-76X | Standard Stud Kit |
| HM7170-72X | 7170-72X | Metric Stud Kit |
| HM328170-77X | 328170-77X | Deep Mount Stud Kit |
Input Gears
| Heavy Motions® | Chelsea® Reference Number | Part Number | Type | Input | Teeth Ratio |
| HM542*FAH | 442*FAH | HM5P1077 | Spur | 22 | 21 |
| HM542**AH | 442**AH | HM5P1004 | Spur | 22 | |
| HM542**BG | 442**BG | HM5P1015 | Left Helix | 23 | |
| HM542**DA | 442**DA | HM5P1037 | Spur | 23 | |
| HM542**ES | 442**ES | HM5P1059 | Left Helix | 22 |
Ratio Gears
| INPUT GEAR | OUTPUT GEAR | ||||
| Heavy Motions® | Chelsea® Reference Number | Part Number | Teeth | Part Number | Teeth |
| HM542*F | 442*F | HM2P726 | 37 | ||
| HM542*L | 442*L | HM5P964 | 25 | HM2P727 | 34 |
| HM542*Q | 442*Q | HM5P965 | 19 | HM2P559 | 24 |
| HM542*R | 442*R | HM5P1214 | 22 | HM2P559 | 24 |
| HM542*S | 442*S | HM5P966 | 24 | HM2P637 | 22 |
| HM542*U | 442*U | HM5P967 | 26 | HM2P560 | 20 |
| HM542*W | 442*W | HM5P968 | 26 | HM2P561 | 17 |
| HM542*X | 442*X | HM5P969 | 38 | HM2P728 | 21 |
