Page 1
RETROFIT OPTIONS AND ACCESSORIES
FOR BACKHOE LOADERS – SIDE SHIFT
Model (Serial Number Prefix):
428 (H7D/L7D), 432 (H7E/L7E), 434 (H7K/L7K), 444 (H7M/L7M)
422F2 (LYF), 426F2 (EJ2/EJ4), 427F2 (HWK), 428F2 (HWN/LYG),
432F2 (HWP/LYJ), 434F2 (HWR/LYK), 444F2 (HWS/LYL)
428F (LBH/RAK), 432F (LNR/PXR), 434F (LDH/MTR), 444F (JXR/LJJ)
Page 2
Option/Accessory ..................................................Page Number
COMFORT AND CONVENIENCE ........................................ 3-4
Ride Control........................................................................... 3
Seat Cover, Luxury ............................................................... 4
Seat Cover, Waterproof ...................................................... 4
EMISSIONS AND REGULATIONS ...................................... 5-7
Hoe Object Handling Check Valves .................................. 5
Loader Check Valves ........................................................... 6
Rear Window Replacement ............................................... 6
Roading Bracket, Equal Size Tires .................................... 7
ENHANCEMENTS AND VISIBILITY .................................. 8
Work Lights, LED Spot ......................................................... 8
Work Lights, LED Wide ........................................................ 8
GUARDING ............................................................................ 9-10
Front Fenders ........................................................................ 9
Front Fenders, Equal Size Tires.......................................... 9
Heat Shield ............................................................................ 10
PERFORMANCE AND PRODUCTIVITY ............................. 11-23
Additional 8th Pilot Hoe Function ...................................... 11
Additional 8th Mechanical Hoe Function ........................ 11
Autoshift Conversion ........................................................... 12
E-Stick One-Way Auxiliary Lines ....................................... 13
E-Stick Two-Way Auxiliary Lines ...................................... 14
E-Stick Two-Way Upgrade Auxiliary Lines ...................... 15
Standard Stick Auxiliary Lines ........................................... 16
Street Pads for Multi-Purpose Bucket ............................. 17
Hydraulic Hand Tool Circuit ................................................ 17
Hydraulic Hoe Coupler Lines.............................................. 18
Loader Quick Coupler, Parallel Lift, Equal Size Tires ...... 19
Loader Quick Coupler, Parallel Lift,
Non Equal Size Tires ........................................................ 19
Mechanical Hoe Controls (Backhoe) ............................... 20
Mechanical Hoe Controls (Excavator) ............................. 20
Powered Sideshift................................................................ 21
Quick Disconnects (Hoe) .................................................... 21
Quick Disconnects (Loader) ............................................... 22
Spare Bucket Pins ............................................................... 22
Spare Narrow Stick Bucket Pins ...................................... 23
SECURITY .............................................................................. 23
Security Pin-On Display ...................................................... 23
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2
Page 3
COMFORT AND CONVENIENCE
Ride Control
Improves ride during travel by providing a suspension system in the loader lift arm circuit. Recommended in applications where
improved ride or material retention is desired such as roading or load and carry.
563-6245
577-5607/577-8610 577-5607/577-8610 (577-5607 only)
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
577‐5607**
428, 434 H7D, L7D, H7K, L7K 577‐8610* 4.0 Hours
426F2 EJ2, EJ4 563‐6245*
*This kit is for use on Mechanical control machines.
**This kit is for use on Pilot control machines and has software enabled features that must be activated by a Cat dealer.
Recommended Dealer
Install
Recommended Dealer
Install
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3
Page 4
Seat Cover, Luxury
Provides an over seat cover to protect the seat from surface damage and water. Includes storage pockets.
Model Serial Number Prefix Part Number Estimated Install Time
422F2, 426F2, 427F2,
428F2, 432F2, 434F2,
444F2
LYF, EJ2, EJ4, HWK,
HWN, LYG, HWP, LYJ,
HWR, LYK, HWS, LYL
500-3891 0.5 Hour
Seat Cover, Waterproof
Provides an over seat cover to protect the seat from surface damage and water. Includes storage pockets.
Model Serial Number Prefix Part Number Estimated Install Time
422F2, 426F2, 427F2,
428F2, 432F2, 434F2,
444F2
LYF, EJ2, EJ4, HWK,
HWN, LYG, HWP, LYJ,
HWR, LYK, HWS, LYL
500-3890 0.5 Hour
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Page 5
EMISSIONS AND REGULATIONS
Hoe Object Handling Check Valves
Kit provides hose burst check valves to be mounted to the hoe boom and stick cylinders to prevent inadvertent lowering of the
boom due to a hose issue. This is mandatory in certain regions when the lift eye for material handling has been fitted.
581‐4144
581-4145
581-4146
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 581-4144*
428, 432, 434, 444
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
581-4145**
Recommended Dealer
432, 444 H7E, L7E, L7M, H7M 581-4146***
*This kit is for use on Mechanical control machines.
**This kit is for use on Pilot control machines with a 4.3 m (14’0”) boom.
***This kit is for use on Pilot control machines with a 4.9 m (15’0”) boom.
Install
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Page 6
Loader Check Valves
Kit provides loader check valves to the front loader cylinders to prevent inadvertent lowering of the boom due to a hose issue.
This is mandatory in certain regions when the loader is used for material handling.
Model Serial Number Prefix Part Number Estimated Install Time
434 H7K, L7K 586-8331*
444 L7M, H7M 586-8333**
*This kit is for use on Mechanical control machines.
**This kit is for use on electro-hydraulic (EH) control machines.
Recommended Dealer
Install
Rear Window Replacement
Kit provides a replacement rear window for the cab that can be used when a hammer attachment is being operated, to give the
operator incremental protection against debris.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
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6
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
575-4252
Recommended Dealer
Install
Page 7
Roading Bracket, Equal Size Tires (EST)
Kit provides a bracket to mount an IT Loader bucket in reverse, to a loader coupler, on an equal size tire machine, to be able to be
roaded in Germany.
Model Serial Number Prefix Part Number Estimated Install Time
444 L7M, H7M
444F2 HWS, LYL
287-8209 1.0 Hour
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Page 8
ENHANCEMENTS AND VISIBILITY
Work Lights, LED Spot
Kit provides two (2) replacement forward or rear facing cab mounted LED, 1000 lumen, spot work lights. LED lighting provides
brighter lighting and longer life.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
*The part number is for reference only. Please see your Cat Dealer for the complete list of required parts.
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
523-0416* 1.0 Hour
Work Lights, LED Wide
Kit provides two (2) replacement forward or rear facing cab mounted LED, 1000 lumen, wide work lights. LED lighting provides
brighter lighting and longer life.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
*The part number is for reference only. Please see your Cat Dealer for the complete list of required parts.
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H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
497-5482* 1.0 Hour
Page 9
GUARDING
Front Fenders
Provides a set of two non-metallic front fenders to add to a machine without existing fenders.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432 H7D, L7D, H7E, L7E 586-8064 1.0 Hour
Front Fenders, Equal Size Tires
Provides a set of two non-metallic front fenders to add to a machine without existing fenders.
Model Serial Number Prefix Part Number Estimated Install Time
434, 444 H7K, L7K, L7M, H7M
434F2, 444F2 HWP, LYJ, HWS, LYL
420-6067 1.0 Hour
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Page 10
Heat Shield
Provides a replacement, stainless steel heatshield to fit around the exhaust stack pipe.
Model Serial Number Prefix Part Number Estimated Install Time
428F2, 432F2, 434F2,
444F2
HWN, HWP, HWR, HWS
428F, 432F, 434F, 444F RAK, PXR, MTR, JXR
494-5432 1.0 Hour
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Page 11
PERFORMANCE AND PRODUCTIVITY
Additional 8th Pilot Hoe Function
Provides a diverter valve and joystick control for 8th function from the diverter valve.
Model Serial Number Prefix Part Number Estimated Install Time
432, 444 H7E, L7E, L7M, H7M 604-4586
Recommended Dealer
Install
Additional 8th Mechanical Hoe Function
Provides a mechanical pedal to operate an 8th function valve slice mounted into the hoe valve for independent 8th function control.
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 581-4147
Recommended Dealer
Install
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11
Page 12
Autoshift Conversion
Once activated by a Cat® dealer, this software enabled kit will allow the customer, to upgrade to the onboard feature to convert from
power shift to auto shift transmission.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434
*This kit has software enabled features that must be activated by a Cat dealer. Additional hardware may be required.
H7D, L7D, H7E, L7E, H7K,
L7K
602-6273*
Recommended Dealer
Install
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12
Page 13
E-Stick One-Way Auxiliary Lines
Provides diverter valve and hydraulic 19 mm (3/4”) lines routed to midpoint of stick for use with one- way flow work tools. Includes
hydraulic quick disconnect couplings. This kit can be used to build one- way (hammer) lines.
387‐6460/387-6462
563-6241
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
387-6460*
432, 444 H7E, L7E, L7M, H7M
387-6462**
432F2, 444F2 HWP, LYJ, HWS, LYL
426F2 EJ2, EJ4 563-6241
*This kit is for use on machines with a 4.3 m (14’0”) boom. This kit has software enabled features that must be activated by a Cat dealer.
**This kit is for use on machines with a 4.9 m (15’0”) boom. This kit has software enabled features that must be activated by a Cat dealer.
Recommended Dealer
Install
»
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Page 14
E-Stick Two-Way Auxiliary Lines
Provides diverter valve and hydraulic 19 mm (3/4”) lines routed to midpoint of stick for use with one-way or two-way flow work tools.
Includes hydraulic quick disconnect couplings. This kit can be used to build one-way (hammer) lines.
387-6461
563-6242
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
387-6461*
426F2 EJ2, EJ4 563-6242
* This kit is for use on machines with a 4.3 m (14’0”) boom. This kit has software enabled features that must be activated by a Cat dealer.
Recommended Dealer
Install
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Page 15
E-Stick Two-Way Upgrade Auxiliary Lines
This kit is for adding two-way auxiliary lines for machines already fitted with one-way lines. For use with work tools requiring
two-way operation.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 426F2, 427F2,
428F2, 432F2, 434F2,
444F2
H7D, L7D, H7E, L7E, H7K,
L7K, H7M, L7M
LYF, EJ2, EJ4, HWK,
HWN, LYG, HWP, LYJ,
HWR, LYK, HWS, LYL
349-1348*
432, 444 H7E, L7E, L7M, H7M
349-2410**
432F2, 444F2 HWP, LYJ, HWS, LYL
*This kit is for use on machines with a 4.3 m (14’0”) boom. This kit has software enabled features that must be activated by a Cat dealer.
**This kit is for use on machines with a 4.9 m (15’0”) boom. This kit has software enabled features that must be activated by a Cat dealer.
Recommended Dealer
Install
»
15
Page 16
Standard Stick Auxiliary Lines
Provides mechanical foot pedal and linkage to diverter valve with hydraulic 19 mm (3/4”) lines routed to midpoint of stick for use with
one-way flow work tools. Includes hydraulic quick disconnect couplings. This kit can be used to build one-way (hammer) lines.
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 581-4143
426F2 EJ2, EJ4 509-7009
Recommended Dealer
Install
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16
Page 17
Street Pads for Multi-Purpose Bucket
Kit includes two street pads to clamp in between the multi-purpose bucket clam for use when lifting the machine o the ground
with the front bucket, not to damage the work surface.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
467-0071 2.0 Hours
Hydraulic Hand Tool Circuit
This kit provides an auxiliary hand tool circuit to operate Type II single flow hydraulics hand tool circuit via flat face quick connects
located on the top of the tread plate of the tool box on the right side of the machine.
Model Serial Number Prefix Part Number Estimated Install Time
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
* This kit has software enabled features that must be activated by a Cat dealer.
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
LYL, HWS
577-7083*
Recommended Dealer
Install
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Page 18
Hydraulic Hoe Coupler Lines
Provides hydraulic hoe coupler lines for extended stick to enable the hydraulic hoe coupler to be operated on the machine from the
cab switches provided.
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 581-4552*
428, 432, 434, 444
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
581-4141**
432, 444 H7E, L7E, L7M, H7M 581-4142***
*This kit is for use on Mechanical control machines with a 4.3 m (14’0”) boom.
**This kit is for use on Pilot control machines with a 4.3 m (14’0”) boom and has software enabled features that must be activated by a Cat dealer.
***This kit is for use on machines with a 4.5 m (15’0”) boom and has software enabled features that must be activated by a Cat Dealer.
Recommended Dealer
Install
»
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Page 19
Loader Quick Coupler, Parallel Lift, Equal Size Tires
Provides an electro-hydraulic coupler actuation system activated from the cab. Includes constant pressure coupler pins on equal size
tire parallel lift machines for use with Cat IT coupler to mount hook-on work tools.
Model Serial Number Prefix Part Number Estimated Install Time
434, 444 H7K, L7K, H7M, L7M
472-4304*
434F2**, 444F2 HWR**, LYK**, HWS, LYL
* This kit has software enabled features that must be activated by a Cat dealer.
**Please contact your Cat® dealer and reference media number M0068106 for additional harness requirements and proper installation instructions.
Recommended Dealer
Install
Loader Quick Coupler, Parallel Lift, Non Equal Size Tires
Provides an electro-hydraulic coupler actuation system activated from the cab. Includes constant pressure coupler pins on standard
parallel lift machines for use with Cat IT coupler to mount hook-on work tools.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432 H7D, L7D, H7E, L7E
427F2**, 428F2**, 432F2
* This kit has software enabled features that must be activated by a Cat dealer.
**Please contact your Cat® dealer and reference media number M0068106 for additional harness requirements and proper installation instructions.
HWK**, HWN**, LYG**,
LYJ
472-4303*
Recommended Dealer
Install
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Page 20
Mechanical Hoe Controls (Backhoe)
This kit converts controls from excavator (ISO) mechanical hoe control pattern to mechanical hoe backhoe control pattern.
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 579-6460
Recommended Dealer
422F2, 427F2, 428F2,
434F2
LYF, HWK, HWN, LYG,
HWR, LYK
472-4302
Install
Mechanical Hoe Controls (Excavator)
This kit converts controls from backhoe mechanical hoe control pattern to mechanical hoe excavator (ISO) pattern.
Model Serial Number Prefix Part Number Estimated Install Time
428, 434 H7D, L7D, H7K, L7K 579-6459
426F2 EJ2, EJ4 561-5731
422F2, 427F2, 428F2,
434F2
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20
LYF, HWK, HWN, LYG,
HWR, LYK
468-7975
Recommended Dealer
Install
Page 21
Powered Side Shift
Kit provides a complete Powered Side Shift kit to enable the Slider frame to be hydraulically controlled from the cab.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
566-0159
Recommended Dealer
Install
Quick Disconnect (Hoe)
Kit includes both male and female twist to connect hydraulic quick disconnect couplings, with protective caps, for use with hoe
hydraulic operated work tools.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
442-9566 0.5 Hour
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Page 22
Quick Disconnect (Loader)
Kit includes both male and female twist to connect hydraulic quick disconnect couplings, with protective caps, for use with loader
hydraulic operated work tools.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
428F2, 432F2, 434F2,
444F2
H7D, L7D, H7E, L7E, H7K,
HWN, LYG, HWP, LYJ,
HWR, LYK, HWS, LYL
Spare Bucket Pins
Provides spare standard Cat bucket pins.
Model Serial Number Prefix Part Number Estimated Install Time
L7K, L7M, H7M
455-7380 0.5 Hour
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
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22
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
178-3593 0.2 Hour
Page 23
Spare Narrow Stick Bucket Pins
Provides spare bucket pins.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444
422F2, 427F2, 428F2,
432F2, 434F2, 444F2
H7D, L7D, H7E, L7E, H7K,
L7K, L7M, H7M
LYF, HWK, HWN, LYG,
HWP, LYJ, HWR, LYK,
HWS, LYL
223-1882 0.2 Hour
SECURITY
Security Pin-On Display
Once activated by a Cat dealer, this software enabled kit, will allow the customer to upgrade the onboard feature to keypad
security on the display.
Model Serial Number Prefix Part Number Estimated Install Time
428, 432, 434, 444 H7D, H7E, H7K, H7M 602-6201*
* This kit has software enabled features that must be activated by a Cat dealer. Additional hardware may be required.
Recommended Dealer
Install
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AEXQ3131
February 2021
(Global)
© 2021 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar Corporate Yellow,” the “PowerEdge” and
Cat“Modern Hex” trade dress as well as corporate and product identity used herein, aretrademarks ofCaterpillar and may not be used without permission.
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