AVSPARE.COM
parts catalog
  1. Home
  2. Caterpillar catalog

CYLINDER BLOCK AND COVERS--End View- Part 2 of 2 FOR ARRANGEMENT 8L1707 D343 INDUSTRIAL ENGINE


BASIC ENGINE
CYLINDER BLOCK GP
PAN GP-OIL
CRANKSHAFT GP
FLYWHEEL GP
PISTON & ROD GP
CAMSHAFT GP

INDUSTRIAL ENGINE D343 INDUSTRIAL ENGINE 62B
 D343 ENGINE ARRANGEMENTS 8L1706 & 8L1707 62B06728-UP UEG0227S D343 62B   (1960)

BASIC ENGINE

CYLINDER BLOCK GP
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK ASSEMBLY
CYLINDER BLOCK ASSEMBLY
 

#UEG0227S0020
 

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--End View- Part 2 of 2
FOR ARRANGEMENT 8L1707
c109412 UEG0227S
None CYLINDER BLOCK AND COVERS Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2A-3798 [1] DOWEL  
    (PART OF HOUSING ASSEM. 1N8319)
  0S-1608 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  1A-7669 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  3H-7654 [1] WASHER  
  7B-9665 [1] PLUG  
  0S-1594 [1] BOLT  
  5H-3204 [1] LOCK  
  7M-4844 [1] LOCK  
  0S-1595 [2] BOLT  
  0S-1595 [2] BOLT  
  7M-4844 [1] LOCK  
  5B-5590 [1] COVER  
  5B-9656 [1] GASKET  
  0T-0318 [3] BOLT  
  3B-4507 [3] LOCKWASHER  
  5M-6213 [1] PLUG  
  0S-1595 [1] BOLT  
  2B-1738 [1] LOCK  
  0S-1595 [2] BOLT  
  3H-4119 [1] LOCK  
  8S-9191 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  1N-8319 [1] HOUSING ASSEM.  
  2B-7457 [1] PLUG  
  8M-9346 [1] BEARING  
    (PARTS OF 1N8319 ASSEM.)
  8S-9089 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  0S-1594 [2] BOLT  
  7M-4843 [1] LOCK  
  3J-5390 [1] PLUG  
  0S-1594 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  2A-1531 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  8F-8544 [1] BOLT (6.25" LONG)  
  4B-4278 [1] WASHER  
  1D-4706 [2] BOLT (6" LONG)  
  1D-4717 [3] NUT  
  3B-4506 [3] LOCKWASHER  
  4L-4399 [1] COVER  
  4L-4400 [1] GASKET  
  1H-6666 [1] COVER  
  2H-2519 [1] GASKET  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  0S-1573 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  0S-1573 [1] BOLT  
  7M-7205 [1] LOCK  
  0L-0827 PLUG  
  0L-1124 [1] GASKET  
 

#UEG0227S0021
 

CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY
Part of Cylinder Block and Covers shown on Pages 18 and 20
Note: For Field Replacement order 9S6169 Service Block Group
c108214 UEG0227S
None CYLINDER BLOCK ASSEMBLY Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-1719 [6] STUD  
  9F-2247 [4] PLUG  
  7H-3171 [2] PLUG  
  1A-3284 [1] DOWEL (1.375" LONG)  
  7S-3580 [1] DOWEL (1.25" LONG)  
  1S-9292 [2] DOWEL  
  2F-4547 [6] DOWEL  
  5M-6213 [1] PLUG  
  8S-9987 [1] SHAFT ASSEM.  
  8M-1063 [1] DOWEL  
    (PART OF SHAFT ASSEM. 8S9987)
  5M-6214 [3] PLUG  
  5M-7598 [6] CAP GROUP  
  5M-7596 [12] SHIM (LARGE)  
    (2 IN EACH CAP GROUP 5M7598)
  5M-7595 [36] SHIM (SMALL)  
    (6 IN EACH CAP GROUP 5M7598)
  5B-5812 [1] DOWEL  
  5M-7597 [1] CAP GROUP  
  5M-7596 [2] SHIM (LARGE)  
  5M-7595 [6] SHIM (SMALL)  
    (PARTS OF CAP GROUP 5M7597)
  1P-0011 [1] BEARING  
  0L-2288 [1] PLUG  
  9S-1343 [2] PLUG  
  2A-3798 [1] DOWEL  
  2M-8976 [1] TUBE  
  6B-6162 [14] NUT  
  6H-5800 [14] COTTER PIN  
  1M-8395 [14] STUD  
  0L-1521 [1] PLUG  
  4B-9782 [1] BALL  
  8M-0924 [6] ORIFICE  
  3F-0957 [1] DOWEL  
  9S-1343 [1] PLUG (CORE)  
  2A-3798 [2] DOWEL  
  3B-0551 [1] PLUG (PIPE)  
 

#UEG0227S0022
 

OIL PAN

OIL PAN
c105992 UEG0227S
None OIL PAN Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7M-3672 [1] COVER  
  9F-7177 [1] GASKET  
  0S-1619 [1] BOLT (3" LONG)  
  3B-4506 [1] LOCKWASHER  
  2B-7411 [2] PLUG  
  4B-5984 [1] ELBOW  
  3B-7745 [1] NIPPLE  
  1A-2029 [2] BOLT (1.125" LONG)  
  3B-4506 [2] LOCKWASHER  
  8S-9191 [4] BOLT (4" LONG)  
  3B-4506 [4] LOCKWASHER  
  1A-2029 [2] BOLT (1.125" LONG)  
  3B-4506 [2] LOCKWASHER  
  4H-9541 [1] GASKET  
  4L-4979 [1] TUBE ASSEM.  
  2H-2005 [1] FLANGE  
    (PART OF TUBE ASSEM. 4L4979)
  4L-4982 [1] GAUGE ASSEM.  
  1A-2029 [2] BOLT (1.125" LONG)  
  3B-4506 [2] LOCKWASHER  
  5H-7673 [1] FLANGE  
  4H-9541 [1] GASKET  
  0S-1588 [4] BOLT (1.25" LONG)  
  3B-4506 [4] LOCKWASHER  
  1M-6724 [1] GASKET  
  0S-1591 [10] BOLT (1.50" LONG)  
  3B-4506 [10] LOCKWASHER  
  4L-3778 [1] PAN  
  1B-9575 [9] BOLT (1.75" LONG)  
  3B-4505 [9] LOCKWASHER  
  5M-6213 [1] PLUG  
 

#UEG0227S0023
 

CRANKSHAFT AND DAMPER

CRANKSHAFT AND DAMPER
c109410 UEG0227S
None CRANKSHAFT AND DAMPER Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9S-3012 [1] CRANKSHAFT ASSEM.  
  2A-3576 [1] DOWEL  
  9S-3013 [1] GEAR (60 TEETH)  
    (PARTS OF 9S3012 ASSEM.)
  7M-0994 [1] BEARING ASSEM. (REAR)  
  5S-3903 [1] SEAL  
  8S-1384 [1] GASKET  
  5S-3899 [1] BAFFLE  
  0L-1351 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4M-9298 [6] RING  
  9S-1343 [6] PLUG  
    (PARTS OF 9S3012 ASSEM.)
  4M-2919 [6] BEARING ASSEM.  
    (INTERMEDIATE)
  2H-5330 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  6L-4768 [1] PULLEY  
  7M-5562 [1] DAMPER ASSEM.  
  4L-6729 [6] LOCK  
  0S-1621 [12] BOLT  
  5L-9413 [1] HUB  
  2S-1509 [1] SEAL  
  [1] PULLEY  
  4L-3018 [1] PLATE  
  1A-1135 [2] BOLT  
  5M-4060 [1] LOCK  
 

#UEG0227S0024
 

CRANKSHAFT BEARING REPLACEMENT GROUPS

CRANKSHAFT BEARING REPLACEMENT GROUPS
UEG0227S0024 UEG0227S
None CRANKSHAFT BEARING REPLACEMENT GROUPS Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UEG0227S0025
 

FLYWHEEL

FLYWHEEL
c125299 UEG0227S
None FLYWHEEL Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8L-4426 [1] FLYWHEEL ASSEM.  
2. 5L-4352 [1] GEAR (140 Teeth)  
    (Part of 8L4426 Assem.)
3. 8L-4425 [9] BOLT  
 

#UEG0227S0026
 

CONNECTING ROD AND PISTON

CONNECTING ROD AND PISTON--6 Required
Serial No. 62B6728 to 62B7278 inclusive
c122396 UEG0227S
None CONNECTING ROD AND PISTON Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1S-9421 [1] RING  
    (PART OF PISTON ASSEM. 8S2660)
  8S-2660 [1] PISTON ASSEM.  
  3S-8285 R [1] ROD ASSEM.  
  5S-1135 [1] PISTON RING GROUP  
    (CONSISTS OF COMPLETE SET OF RINGS FOR ONE PISTON)
  3S-7721 [2] BOLT  
    (PART OF ROD ASSEM.3S8285)
  8M-3081 [2] NUT  
    (PART OF ROD ASSEM.3S8285)
  5S-0261 [1] RING  
    (PART OF PISTON ASSEM. 8S2660)
  1M-7214 [1] RING (OIL)  
    (PART OF PISTON ASSEM. 8S2660)
  3F-8513 [2] RETAINER  
  1M-6101 [1] PIN  
  1M-6107 [1] BEARING  
    (PART OF ROD ASSEM.3S8285)
  3S-3285 [1] BEARING  
    (STANDARD)
  5S-0316 [1] BEARING  
    (.025" UNDERSIZED)
  5S-0315 [1] BEARING  
    (.050"UNDERSIZED)
  1S-1083 [2] COTTER PIN  
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0227S0027
 

CONNECTING ROD AND PISTON

CONNECTING ROD AND PISTON--6 Required
Effective with Serial No. 62B7279
c108357 UEG0227S
None CONNECTING ROD AND PISTON Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9S-2264 [1] RING  
    (PART OF PISTON ASSEM. 1P435)
  1P-0435 [1] PISTON ASSEM.  
  3S-8285 R [1] ROD ASSEM.  
  1P-1127 [1] PISTON RING GROUP  
    (CONSISTS OF COMPLETE SET OF RINGS FOR ONE PISTON)
  3S-7721 [2] BOLT  
    (PART OF ROD ASSEM. 3S8285)
  8M-3081 [2] NUT  
    (PART OF ROD ASSEM. 3S8285)
  1P-0431 [1] RING  
    (PART OF PISTON ASSEM. 1P435)
  1P-0433 [1] RING (OIL)  
    (PART OF PISTON ASSEM. 1P435)
  3F-8513 [2] RETAINER  
  1M-6101 [1] PIN  
  1M-6107 [1] BEARING  
    (PART OF ROD ASSEM. 3S8285)
  3S-3285 [1] BEARING  
    (STANDARD)
  5S-0316 [1] BEARING (.025" UNDERSIZED)  
  5S-0315 [1] BEARING (.050" UNDERSIZED)  
  1S-1083 [2] COTTER PIN  
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0227S0028
 

CAMSHAFT

CAMSHAFT
c106530 UEG0227S
None CAMSHAFT Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-3703 [1] CAMSHAFT ASSEM.  
  9S-0738 [1] BLOCK ASSEM.  
  7M-7136 [1] PLATE  
  0S-0509 [2] BOLT  
  4M-8210 [1] LOCK  
  5M-3603 [2] BEARING  
    (PART OF BLOCK ASSEM. 9S738)
  5B-9603 [1] BOLT  
  0L-0364 [1] LOCK  
  [1] COLLAR  
    (PART OF 7M3845 ASSEM.)
  0T-0055 [7] BOLT  
  0L-0364 [7] LOCK  
  7M-3845 [1] CAMSHAFT ASSEM.  
  1A-5183 [6] BOLT  
  0L-0364 [6] LOCK  
  9S-0740 [6] BLOCK ASSEM.  
  [1] GEAR  
    (PART OF CAMSHAFT ASSEM. 5M3703)
  5M-3594 [1] TUBE ASSEM.  
  0S-1591 [6] BOLT  
  0L-0364 [6] LOCK  
  5M-3560 [12] BEARING  
    (2 IN EACH BLOCK ASSEM. 9S740)
  [1] GEAR  
    (PART OF 7M3845 ASSEM.)
 

#UEG0227S0029
 

CAMSHAFT DRIVE

CAMSHAFT DRIVE
c106667 UEG0227S
None CAMSHAFT DRIVE Parts scheme
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-1902 [1] GASKET  
  5M-2609 [1] CAGE ASSEM.  
  7M-3846 [1] SHAFT  
  2S-5210 [1] BEARING  
    (PART OF CAGE ASSEM.5M2609)
  2M-8513 [1] WASHER  
  7S-3569 [1] SHAFT ASSEM.  
  4B-9880 [1] BALL  
    (PART OF SHAFT ASSEM. 7S3569)
  2M-4453 [1] SEAL  
  1B-4203 [6] NUT  
  0L-0364 [6] LOCK  
  8M-7140 [1] GEAR ASSEM.  
    (40 TEETH)
  2H-5558 [1] DOWEL  
    (PART OF GEAR ASSEM. 8M7140)
  1M-9695 [1] WASHER  
  0S-1594 [3] BOLT  
  5M-9421 [1] LOCK  
  1B-4203 [3] NUT  
  5M-9419 [1] LOCK  
  2S-5211 [1] BEARING  
    (PART OF GEAR ASSEM. 8M7143)
  8M-7143 [1] GEAR ASSEM.  
    (40 TEETH)
 

Information:

Engine News
In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09
Crankshaft Now Has A Fillet Radius At Front Main Bearing Journal
1980/10/22
Inspection Marks On Bearings
1982/05/12
Use FT1711 Light Table For Cylinder Liner Inspection
1982/12/15
Crankshaft Has Step At Front Of No. 1 Main Bearing Journal
1982/12/15
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip
1982/12/15
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1983/05/25
Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/06/01
Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/08/01
Main And Connecting Rod Bearing Part Numbers
1987/01/01
New Engine Cylinder Liner Available {1216}
1996/01/17
Improved Crankshaft Main Bearings And Connecting Rod Bearings With Higher Strength Aluminum Alloy
1977/11/09
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster
1978/01/18
New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03
Use New Main Bearings In Replacement Cylinder Blocks
1978/07/05
Change In Procedure To Check Main Bearing Clearance
1978/08/30
Special Instruction
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}
Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}
Installation Of Crankshaft Seals And Wear Sleeves{1203}
Installation Of Crankshaft Seals And Wear Sleeves{1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Cylinder Block Cleaning Procedure{1201}
Cylinder Block Cleaning Procedure{1201}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Service Letter-NACD
0R0824, 0R2089, 0R2128, 0R2170, 0R2586, And 0R2666 Remanufactured Cylinder Heads For D343 Engines May Need To Be Removed From Dealer Parts Stock
0R0824, 0R2089, 0R2128, 0R2170, 0R2586, And 0R2666 Remanufactured Cylinder Heads For D343 Engines May Need To Be Removed From Dealer Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-China
Service Letter-Asia
Reuse And Salvage Guidelines
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Service Letter-APD
0R0824, 0R2089, 0R2128, 0R2170, 0R2586, And 0R2666 Remanufactured Cylinder Heads For D343 Engines May Need To Be Removed From Dealer Parts Stock
0R0824, 0R2089, 0R2128, 0R2170, 0R2586, And 0R2666 Remanufactured Cylinder Heads For D343 Engines May Need To Be Removed From Dealer Parts Stock
Service Magazine
Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1981/12/21
Use New Special Instruction To Install 5P6595 Insert In Cylinder Liner Seats{1216,0621}
1982/05/03
Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
Use FT1711 Light Table For Cylinder Liner Inspection {0652,1216}
1982/11/29
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16
Reuse Of Engine Bearings{1230}
1983/05/16
Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
Improved Crankshaft Main Bearings And Connecting Rod Bearings With Higher Strength Aluminum Alloy{1203,1219,1230}
1977/11/07
Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster{0621,1216}
1978/01/09
Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12
New Information On Reusable Cylinder Liners{1216}
1978/06/19
Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28
New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17

Caterpillar Parts SIS Catalog D343 :

CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
AFTERCOOLER
AFTERCOOLER
CYLINDER BLOCK ASSEMBLY
CYLINDER BLOCK ASSEMBLY
OIL PAN
OIL PAN
CRANKSHAFT AND DAMPER
CRANKSHAFT AND DAMPER
CRANKSHAFT BEARING REPLACEMENT GROUPS
CRANKSHAFT BEARING REPLACEMENT GROUPS
FLYWHEEL
FLYWHEEL
CONNECTING ROD AND PISTON
CONNECTING ROD AND PISTON
CONNECTING ROD AND PISTON
CONNECTING ROD AND PISTON
CAMSHAFT
CAMSHAFT

Truck sale:

1999 CAT D343
Call 
1999 CAT D343

REICAL
CAT D343
USD $9,850 
CAT D343

Elite Equipment Pros, LLC
Parker, Colorado 80138
CAT D343
Call 
CAT D343

JW Bell LLC
Back to top
Contacts Request list Affiliate disclosure
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.