Case 850M Crawler Dozer Service Parts Catalogue (535126850PC) (February 2026)

That 850M usually lives in the rough stuff—pushing fill on sites, cutting pads, cleaning up in rock and mud. This service parts catalogue is what you use before you grab a wrench, so you can trace every seal, pin, hose, and filter you’ll need and have it on the bench. Say you’re planning a final drive reseal: you can sit down, match the exploded view, verify each O‑ring and bearing, and avoid tearing it apart only to find you’re short one weird little gasket.

Applications & Use Cases

• Plan a full undercarriage job: inspect the diagram, match track rollers, idlers, and hardware, and order the exact pieces instead of guessing by sight.
• Trace hydraulic leaks: isolate which hose, fitting, or manifold you’re dealing with, then cross-check part numbers before you crack anything loose.
• During teardown, lay parts out and match callouts so you don’t swap bushings or mis-route lines when you go to reassemble.
• Check superseded numbers at the counter; you can verify the old number from your book against what the dealer’s trying to hand you.
• Pre-stage for engine or cooling work so you’ve got clamps, seals, and brackets ready and don’t have to stop mid-job to chase one missing part.

FAQ

Q: Is this something I can search on my laptop, or is it just a scanned booklet?

A: It’s typically a digital parts catalog you can search by part number or section, so you can jump straight to what you’re working on.

Q: Can I print pages to take out to the dozer?

A: Yeah, most folks print the sections they need, stick them in a sleeve, and mark them up as they test, strip, and align parts.

Safety Note

Always bleed off hydraulic pressure and lock the machine out before you start loosening any line or pulling components you’ve traced in the catalog.

Case 850M Crawler Dozer Index:

00.000.00 PICTORIAL INDEX – MAIN SECTIONS
00.000.10 PICTORIAL INDEX – ENGINE
00.000.27 PICTORIAL INDEX – REAR DRIVE AXLE
00.000.29 PICTORIAL INDEX – HYDROSTATIC TRANSMISSION
00.000.35 PICTORIAL INDEX – HYDRAULIC SYSTEMS
00.000.37 PICTORIAL INDEX – HITCHES, DRAWBARS AND IMPLEMENT COUPLINGS
00.000.39 PICTORIAL INDEX – FRAMES AND BALLASTING
00.000.48 PICTORIAL INDEX TRACK ASSY, SUSPENSION
00.000.50 PICTORIAL INDEX – CAB CLIMATE CONTROL
00.000.55 PICTORIAL INDEX – ELECTRICAL SYSTEMS
00.000.71 PICTORIAL INDEX – LUBRICATION SYSTEM
00.000.86 PICTORIAL INDEX – DOZER BLADE
00.000.89 TOOL, PICTORIAL INDEX TOOLS
00.000.90 PICTORIAL INDEX – PLATFORM, CAB, BODYWORK AND DECALS
00.100.03 [01] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS
00.100.03 [02] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS
00.100.03 [03] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS
05.100.01 INITIAL STOCKING LIST (LIST A)
05.100.02 INITIAL STOCKING LIST (LIST B)
05.100.04 FLUID, CAPACITIES
05.100.05 FILTERS
05.100.99 INITIAL STOCKING LIST (LIST C)
10.000.000 PICTORIAL INDEX – ENGINE
10.001.010 ENGINE, NA; (Var) 12RD008NE
10.001.020 ENGINE MOUNT; (Var) 12RD008NE
10.001.030 ENGINE, ACCESSORIES
10.202.010 AIR INTAKE; (Var) 12RD00103
10.202.020 TURBOCHARGER, INTAKE ASSY; (Var) 12RD007PC
10.202.030 INTAKE ASSY, COVER
10.216.010 FUEL TANK & ASSOCIATED PARTS; (Var) 12RD00103
10.216.020 FUEL TANK; (Var) 12RD00103
10.218.020 HEATED, FUEL FILTER; (Var) 12RD007EC
10.254.010 ADAPTER; (Var) 12RD0060H
10.254.015 MUFFLER, SCR; (Var) 12RD00103; (Prod Date) After 18 Oct 2017
10.304.010 OIL FILTER
10.400.010 RADIATOR & COOLER, FRAME; (Var) 12RD00103
10.400.020 RADIATOR & COOLER, HOSE ASSY.; (Var) 12RD00103
10.400.030 SCREEN, RADIATOR GUARD; (Var) 12RD007RS
10.400.040 DRAIN LINE, FUEL LINE, COOLING SYSTEM LINE; (Var) 12RD007ED
10.400.050 DRAIN, HYDRAULIC OIL; (Var) 12RD007ED
10.400.060 DRAIN, ENGINE OIL; (Var) 12RD007ED
10.414.010 FAN; (Var) 12RD00103
10.414.020 FAN GUARD; (Var) 12RD0060H
10.419.010 SCREEN, SANDBLAST; (Var) 12RD007SB
10.500.010 DEF TANK, DEF/ADBLUE™ LINES; (Var) 12RD00103
10.500.020 DEF/ADBLUE%TM% LINES, MODULE; (Var) 12RD00103
10.500.030 SEVERE COLD WEATHER INSULATION, DEF LINES, MODULE; (Var) 12RD007EC
19.100.010 FLYWHEEL HYDROSTATIC PUMP, COUPLING; (Var) 12RD00103
27.000.000 PICTORIAL INDEX – REAR DRIVE AXLE

27.120.010 FINAL DRIVE, UPPER; (Var) 12RD00103
27.120.010 [03] FINAL DRIVE, MOUNTING PARTS; (Var) 12RD00103
27.120.020 [02] FINAL DRIVE, LOWER; (Var) 12RD00103
29.000.000 PICTORIAL INDEX – HYDROSTATIC TRANSMISSION
29.100.010 HYDROSTATIC MOTOR; (Var) 12RD00103
29.100.030 HYDROSTATIC PUMP, MOUNTING PARTS; (Var) 12RD00103
29.100.040 HYDROSTATIC MOTOR, HYDRAULIC FLUID RESERVOIR, LINES; (Var) 12RD00103
29.100.050 HYDROSTATIC MOTOR, LINES, HYD. LINE, HYDRAULIC HOSE; (Var) 12RD00103
29.100.080 HYDROSTATIC PUMP, COUPLING; (Var) 12RD00103
29.218.010 PUMP, HYDRO; (Var) 12RD00103
35.000.000 PICTORIAL INDEX – HYDRAULIC SYSTEMS
35.102.010 HYDRAULIC EQUIPMENT REEL, CONTROLS AND INTERNAL PLUMBING; (Var) 12RD00103
35.106.010 MAIN, PUMP, MANIFOLD; (Var) 12RD00103
35.106.010 [01] PUMP, PTO; (Var) 12RD007HP
35.300.010 HYDRAULIC FLUID RESERVOIR – BSN – NGC103102; (Var) 12RD00103
35.300.020 HYDRAULIC FLUID RESERVOIR – ASN – NGC103103; (Var) 12RD00103
35.359.040 [02.] 4-SPOOL VALVE, LINKAGE; (Var) 12RD007VD
35.359.040 [02] CONTROL VALVE, PLUGS, 4 SP; (Var) 12RD007VD
35.359.050 [02] CONTROL VALVE ASSY – 4-SPOOL; (Var) 12RD007VD
35.359.050 [03] CONTROL VALVE ASSY – 4-SPOOL; (Var) 12RD007VD
35.525.010 DIAGNOSTIC HOSES; (Var) 12RD00103
35.741.010 BLADE, CYLINDER AND HOSE ASSY.; (Var) 12RD00103
35.741.020 ANGLE CYLINDER; (Var) 12RD00103
35.741.030 CYLINDER TILT; (Var) 12RD00103
35.741.040 LIFT CYLINDER; (Var) 12RD00103
37.000.000 PICTORIAL INDEX – HITCHES, DRAWBARS AND IMPLEMENT COUPLINGS
37.000.000 PICTORIAL INDEX – HITCHES, DRAWBARS AND IMPLEMENT COUPLINGS
37.100.010 DRAWBAR; (Var) 12RD0030C
39.000.000 PICTORIAL INDEX – FRAMES AND BALLASTING
39.100.010 MAIN FRAME WT; (Var) 12RD00103
39.110.010 FRONT, COUNTERWEIGHT, HOOK; (Var) 12RD007TC
48.000.000 PICTORIAL INDEX TRACK ASSY, SUSPENSION
48.100.083 CRAWLER TRACK ASSY, SALT, OPEN, 20”
48.100.092 CRAWLER TRACK ASSY, SALT, CLOSED, 20”; (Var) 12RD004CP
48.100.205 TRACK LINK, PLUG
48.100.222 KIT, MASTER TRACK LINK, MAX LIFE
48.100.239 KIT, TRACK LINK, SALT HD
48.100.252 KIT, MASTER TRACK LINK, SALT HD
48.100.263 KIT, TRACK LINK, MAX-LIFE
48.130.030 SPROCKET WT, SALT HD; (Var) 12RD004CP
48.134.010 UNDERCARRIAGE; (Var) 12RD00103
48.134.020 LH, TRACK ASSY; (Var) 12RD00103
48.134.030 RH, TRACK ASSY; (Var) 12RD00103
48.134.040 LH, YOKE, TRACK CHAIN, ADJUSTER; (Var) 12RD00103
48.134.050 YOKE, RH, TRACK CHAIN, ADJUSTER; (Var) 12RD00103
48.134.060 IDLER, WHEEL; (Var) 12RD00103
50.000.000 PICTORIAL INDEX – CAB CLIMATE CONTROL
50.200.010 AIR CONDITIONING, HEATER; (Var) 12RD0060H
TABLE OF CONTENTS
50.200.010 [01] HEATER, AIR CONDITIONING, COMPRESSOR, HOSES; (Var) 12RD0060H; (Prod Date)
After 11 Jun 2018
50.200.020 AIR CONDITIONING, HEATER, ASSY; (Var) 12RD0060H
50.200.025 AIR CONDITIONING CONDENSER, COVER ASSY; (Var) 12RD0060H
50.200.030 AIR CONDITIONER, CONDENSER; (Var) 12RD0060H
50.200.040 AIR CONDITIONING CONDENSER; (Var) 12RD0060H
50.200.045 AIR CONDITIONING CONDENSER; (Var) 12RD0060H
55.000.000 PICTORIAL INDEX – ELECTRICAL SYSTEMS
55.015.010 ENGINE, ELECTRONIC CONTROL UNIT
55.100.010 WASHER BOTTLE WIRE HARNESS; (Var) 12RD0060H
55.101.010 CHASSIS, ENGINE, WIRE HARNESS, NA T4B; (Var) 12RD00103
55.101.010 GROUND STRAP
55.202.010 HEATER, COLD START; (Var) 12RD007GP
55.202.010 [01] GRID HEATER, RESISTOR
55.202.020 ENGINE BLOCK HEATER; (Var) 12RD007EC
55.301.010 ALTERNATOR; (Var) 12RD008NE
55.302.010 BATTERY – TRAY & CABLES; (Var) 12RD00103
55.404.020 WORK LAMP W/SWEEPS; (Var) 12RD0071L
55.408.010 HORN; (Var) 12RD00103
55.510.010 [01] CAB, WIRE HARNESS; (Var) 12RD0060H
55.512.020 LH, CONSOLE, JOYSTICK, DETENT; (Var) 12RD007JS
55.512.020 RADIO; (Var) 12RD007RA
55.512.030 JOYSTICK, DUST CAP; (Var) 12RD0060H
55.518.010 WINDSHIELD WASHER; (Var) 12RD0060H
55.518.010 WIPER MOTOR, FRONT; (Var) 12RD0060H
55.518.020 CAB REAR WIPER; (Var) 12RD007RW
55.680.010 KIT, COPILOT, MACHINE CONTROL
55.680.070 [01] COMPUTER, GUIDE, LEICA READY; (Var) 12RD005LE
55.991.010 ELECTRONIC CONTROLS, TELEMATICS; (Var) 12RD007TM
71.000.000 PICTORIAL INDEX – LUBRICATION SYSTEM
71.460.010 GREASE, HOSE; (Var) 12RD00103
86.000.000 PICTORIAL INDEX – DOZER
86.100.020 FRAME C AND PITCH LINK NHC103267, AND AFTER; (Var) 12RD00103; (Prod Date) After
24 May 2017
86.110.020 DOZER, BLADE, 120”; (Var) 12RD0050D
88.000.000 PICTORIAL INDEX – ACCESSORIES
88.100.10 [01] TURBINE, PRE-CLEANER CYCLONE TYPE
88.100.35 KIT, HYDRAULIC, CAP, KIT
88.100.35 [01] DIA, WINCH
88.100.35 [10] KIT, 3 TO 4 SPOOL COVERSION
88.100.37 [06] DIA, DRAWBAR
88.100.37 [08] DIA, REAR, RETRIEVAL HITCH
88.100.37 [09] DIA KIT, WINCH
88.100.37 [10] DIA, , PIN AND LANYARD KIT
88.100.39 [04] DIA, FRONT, COUNTERWEIGHT
88.100.50 KIT, THERMOSTAT, A/C
88.100.55 KIT, , CAB, WORK LIGHT, NO, SWEEP
88.100.55 KIT, WORK LIGHT, CANOPY WITHOUT SWEEPS
88.100.55 [01] KIT DIA TELEMATIC SYSTEM

88.100.55 [02] KIT, CAB, WORK LIGHTS, SWEEPS
88.100.55 [07] DIA, ROPS, LIGHT FIELD KIT (W/SWEEPS)
88.100.55 [09] KIT TOPCON READY
88.100.55 [12] DIA KIT, DIODE, HARNESS WIF
88.100.55 [13] KIT, COLD CLIMATE, GRID HEATER
88.100.55 [14] DIA KIT, TELEMATIC SYSTEM, TRIMBLE, NON-EH
88.100.55 [16] DIA KIT, TELEMATIC SYSTEM, LEICA, NON-EH
88.100.89 [06] DIA KIT, RIPPER
88.100.90 KIT, REAR VIEW MIRROR
88.100.90 [02] DIA, REAR SCREEN (ROPS)
88.100.90 [02] KIT, CAB, REAR, SCREEN
88.100.90 [03] DIA, FORESTRY SIDE , SCREEN
88.100.90 [07] DIA, SWEEPS
89.000.000 TOOL, PICTORIAL INDEX TOOLS
90.000.000 PICTORIAL INDEX – PLATFORM, CAB, BODYWORK AND DECALS
90.100.010 HOOD, PANELS, GRILLE; (Var) 12RD00103
90.100.020 HOOD, SIDE DOOR, PANEL; (Var) 12RD00103
90.105.010 REAR COVER; (Var) 12RD00103
90.105.020 REAR COVER, LOWER; (Var) 12RD00103
90.108.010 DECALS ENGLISH; (Var) 12RD00209
90.108.020 MODEL IDENTIFICATION DECAL WT, LT, LGP; (Var) 12RD004CP
90.108.040 DECAL, CANADA COMPLIANT – CAN ICES-2/NMB2
90.108.090 DECALS, MODELS
90.110.010 INSTRUMENT CLUSTER; (Var) 12RD008NE
90.118.010 REAR VIEW MIRROR; (Var) 12RD007RM
90.120.010 ARMREST; (Var) 12RD0060H
90.124.010 SEAT, UPPER, CLOTH; (Var) 12RD0060H
90.124.020 SEAT, AIR SUSPENSION; (Var) 12RD0060H
90.150.010 FLOOR, ASSY; (Var) 12RD0060H
90.150.010 ROPS CAB; (Var) 12RD0060H
90.150.010 [01] GUARD, BRUSH, SWEEP; (Var) 12RD007GK
90.150.015 SCREEN – CAB REAR; (Var) 12RD007CS; (Prod Date) After 3 May 2019
90.151.010 LH, CONSOLE, JOYSTICK, DETENT; (Var) 12RD007JS
90.151.010 REAR VIEW MIRROR; (Var) 12RD0060H
90.151.020 RH, CONSOLE; (Var) 12RD007VD
90.151.020 SAFETY BELT ASSEMBLY 3 INCH; (Var) 12RD007RD
90.154.010 GLASS BONDED; (Var) 12RD0060H
90.154.020 CAB GLASS; (Var) 12RD0060H
90.154.030 LH CAB DOOR; (Var) 12RD0060H
90.154.040 RH CAB DOOR; (Var) 12RD0060H
90.160.010 FOAM INSULATION; (Var) 12RD00103
90.160.010 [02] FLOOR MAT, COVER, HARNESS, CAB; (Var) 12RD0060H
90.160.020 PEDAL DECEL; (Var) 12RD0060H
90.160.030 CAB INTERIOR TRIM; (Var) 12RD0060H
90.160.030 CONSOLE, ASSY; (Var) 12RD0060H
90.160.030 SOUNDPROOFING, CAB; (Var) 12RD0060H
90.160.050 SOUNDPROOFING; (Var) 12RD0060H
90.160.060 CAB INTERIOR TRIM; (Var) 12RD0060H
90.160.060 HEADLINER; (Var) 12RD0060H
SECTION INDEX
GENERAL & PICTORIAL INDEX
00.000.00 PICTORIAL INDEX – MAIN SECTIONS
00.000.10 PICTORIAL INDEX – ENGINE
00.000.27 PICTORIAL INDEX – REAR DRIVE AXLE
00.000.29 PICTORIAL INDEX – HYDROSTATIC TRANSMISSION
00.000.35 PICTORIAL INDEX – HYDRAULIC SYSTEMS
00.000.37 PICTORIAL INDEX – HITCHES, DRAWBARS AND IMPLEMENT COUPLINGS
00.000.39 PICTORIAL INDEX – FRAMES AND BALLASTING
00.000.48 PICTORIAL INDEX TRACK ASSY, SUSPENSION
00.000.50 PICTORIAL INDEX – CAB CLIMATE CONTROL
00.000.55 PICTORIAL INDEX – ELECTRICAL SYSTEMS
00.000.71 PICTORIAL INDEX – LUBRICATION SYSTEM
00.000.86 PICTORIAL INDEX – DOZER BLADE
00.000.89 TOOL, PICTORIAL INDEX TOOLS
00.000.90 PICTORIAL INDEX – PLATFORM, CAB, BODYWORK AND DECALS
00.100.03 [01] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS
00.100.03 [02] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS
00.100.03 [03] LOCATION OF SERIAL AND PRODUCT IDENTIFICATION NUMBERS

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