Part of the John Deere Parts Manuals.
Deere's Worldwide Construction and Forestry Division published PC10135, and this 728 page John Deere 320D parts catalog PDF is that book for the 320D Skid Steer Loader. Exploded views run from the rocker arm cover through the hydrostatic pumps, each callout tied to a part number you can order. Hydraulics take the largest share of the book, covering flywheel couplers, front pump sections and the boom lock hardware under both manual and EH controls; a primary pictorial index and an alphabetical index get you to the right illustration fast. Serial number breaks matter here: steering linkage splits at 192800, and tires are listed by size, 10x16.5 Xtra Wall or 31.5/1300 x 16.5 Hippo Flotation, against engine 4024HT011-RE528665. Ordering the wrong quick-attach pin costs you a morning. Bookmarked and text searchable, it gets you the right number the first time.
Complete the set for your 320D
What's Inside This John Deere 320D Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Customer Information | 32 | To the Customer, SI Units of Measure, Bolt and Cap Screw Strength Identification |
| Serial Number Location | 33 | Engine Serial Number Plate, Product Identification Number Plate, Sauer-Danfoss Pump and Motor Labels |
| Product Identification Numbers | 34-35 | Digit Product Identification Number, Configuration Designations |
| Engine Serial Number Plate | 36 | Factory Designation Letters, Cylinder Count and Displacement Digits, Emission Level and Build Sequence |
| Trademarks | 37 | Best Bid, CounterParts, JDLink |
| Remarks and Abbreviations | 38-54 | Hydraulic Front-Wheel Drive, Vehicle Electronic Controller, Vehicle Load Center, High Strength Head Marked, Complete Assembly, Substitute Components |
| Engine 4024HT011-RE528665 | 79-174 | Rocker Arm Cover, Crankshaft Pulley, Flywheel Housing, Flywheel, Fuel Injection Pump, Oil Pan, Water Pump, Thermostat |
| Engine Auxiliary System | 175-242 | Engine Oil Fill Tube, Engine Coolant Heater, Cold Start Package Field Kit, Cooling Package, Radiator Bracket |
| Vehicle Electrical Systems | 243-314 | Battery and Cables, Alternator, Work Lights, Dual Flashers, Dual Flashers Kit, Warning Beacon Kit |
| Power Train | 315-348 | Drive Chains and Axles, Single Speed, Two Speed, Tires, 10x16.5, Xtra Wall |
| Steering and Brakes | 349-394 | Centering Mechanism, Steering Linkage, Right Standard Control Lever, Left Standard Control Lever |
| Hydraulics | 395-550 | Flywheel Coupler, Hydrostatic Pumps, Front Hydrostatic Pump Section |
| Frame and Boom | 551-590 | Single Point Lift, Frame Covers and Boom Lock, Engine Auxiliary System Frame |
| Operator's Station and Decals | 591-706 | Cab ROPS, Canopy ROPS |
John Deere 320D Common Problems This Manual Covers
John Deere 320D loader control valve parts breakdown needed, can't identify the correct spool section
Open the Hydraulics exploded view starting on page 395 and work to the loader control valve callouts. Match your spool section by the casting number stamped on the body, then pull the item numbers off the diagram. Verify the listing against your machine serial number on page 33 before ordering.
Manual Section: Hydraulics p. 395Need drive motor and chain case part numbers but unsure which single-speed or two-speed group applies
Go to the Power Train group on page 315. Drive chains and axles split into separate single-speed and two-speed listings, so confirm which one your machine carries before picking item numbers. Check the 2-speed switch wiring in the electrical group on page 243 if you cannot tell from the cab. Cross-check the serial number breaks.
Manual Section: Power Train p. 315Boom cylinder seal kit number not listed with the cylinder assembly, ordering wrong parts
Pull the Frame and Boom section on page 551 and locate the boom cylinder assembly callouts. Seal kits list as a separate item number under the cylinder group, not with the barrel. Compare the rod and bore callouts on the boom diagram on page 582 against the cylinder you have on the bench, then order by the kit number.
Manual Section: Frame and Boom p. 551Filter part numbers for hydraulic, fuel and air elements scattered across different groups
Start in the Engine Auxiliary System group on page 175 for the air cleaner element, fuel filter and water separator listings. Hydraulic oil filter and reservoir breather item numbers sit in the Hydraulics group on page 395 instead. Use the index to jump straight to each group rather than scanning all 550 pages.
Manual Section: Engine Auxiliary System p. 175Joystick and sensor components can't be traced to the right harness connector or part number
Work the Vehicle Electrical Systems group on page 243 for the attachment control and main wiring harness listings. Trace your connector back through the wiring diagram to get the correct pigtail or sensor item number. Many harness pieces list only as complete assemblies, so check the abbreviations notes on page 38 first.
Manual Section: Vehicle Electrical Systems p. 243Fan belt and cooling package components ordered wrong, parts did not fit the machine
Check the Engine Auxiliary System listing on page 175 for the cooling package and radiator bracket callouts. The belt tensioner and belt list under the engine group on page 79 instead. Confirm the engine factory designation off the serial number plate described on page 36, since aspiration type changes which parts apply.
Manual Section: Engine Auxiliary System p. 175Frequently Asked Questions
What are the replacement specs for the hydraulic oil filter on a John Deere 320D Skid Steer?
The hydraulic oil filter element is part number AT314164. It is located within the hydraulic system and should be replaced according to the maintenance schedule. p. 443
What are the replacement specs for the primary engine air filter on a John Deere 320D Skid Steer?
The primary engine air filter element is part number RE282287. It is used in the air cleaner assembly for the 4024HT011 engine. p. 215
What is the cylinder head screw part number for the John Deere 320D Skid Steer?
The cylinder head screws are part number R516693, size M12 x 205, eight per engine. This is a parts catalog, so it lists the fastener, not a tightening torque. p. 125
What screws mount the alternator on a John Deere 320D Skid Steer?
The alternator mounting screws are part number 19M7799, size M8 x 45, two per assembly. This is a parts catalog, so it lists the fastener, not a tightening torque. p. 128
What is the part number for the engine oil filter?
The engine oil filter for the 4024HT011 engine is part number RE519626. p. 138
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