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John Deere Abbreviations & Symbols

&	And	Ea	Each	Nat. Asp.	Naturally Aspirated
2WD	Two Wheel Drive	Ecc	Eccentric	Neg.	Negative
4WD	Four Wheel Drive	ECM	Electronic Computer Module	Neut	Neutral
A.I.R.	Air Injector Reactor	ECM	Electronic Control Module	No.	Number
A/C	Air Conditioner	ECM	Engine Control Module	Nom	Nominal
A/R	As Required	Econ	Economy	Norm	Normal
A/T	Automatic Transmission	ECS	Electronic Controlled Spark	O.A.L.	Overall Length
ABS	Anti-lock Brake System	EFI	Electronic Fuel Injection	O.E.	Original Equipment
AC	Alternating Current	Elec	Electric	O/D	Overdrive
Acc	Accessory	Emis.	Emission	O/S	Oversized
Adj.	Adjustable	Eng.	Engine	Obs	Obsolete
Adv.	Advance	Equip	Equipment	OD	Outside Diameter
Aft	After	Etc	Et Cetera	OEM	Original Equipment Manufacturer
Alt	Altitude	Exc	Except	OHC	Overhead Cam
Alum	Aluminum	Exh	Exhaust	OHV	Overhead Valve
Amp	Ampere	Exp	Export	Opt.	Optional
AOD	Automatic Overdrive	Ext	Exterior	Orig.	Original
Appl.	Application	Ext	External	oz	Ounce
Approx.	Approximately	F	Fahrenheit	P.T.O.	Power Take Off
Asst.	Assist	Fed	Federal	P/S	Power Steering
Assy.	Assembly	FI	Fuel Injection	Pass	Passenger
ATV	All Terrain Vehicle	Flex	Flexible	Pc(s)	Piece(s)
Auto	Automatic	Flg	Flange	PCV	Positive Crankcase Ventilation
Auto. Trans.	Automatic Transmission	Flwr	Follower	Perf.	Performance
Aux.	Auxiliary	Frg	Forged or Forging	Pkg	Package
Avail.	Available	Frt	Front	Pos	Positive
Avg.	Average	FWD	Front Wheel Drive	Prem	Premium
AWD	All Wheel Drive	Gal	Gallon	Pri	Primary
Bal.	Balance	Gas	Gasoline	PSI	Pound Per Square Inch
Batt	Battery	GPH	Gallons Per Hour	Pwr	Power
Bbl	Barrel	GPM	Gallons Per Minute	Qtr.	Quarter
Bbl. Carb.	Barrel Carburetor	Grv(s)	Groove(s)	Qty.	Quantity
Bef.	Before	Gskt.	Gasket	R.B.P.	Ring Below Pin
Brg.	Bearing	GVW	Gross Vehicle Weight	R.H.	Right Hand
Brkt.	Bracket	H/D	Heavy Duty	Ref.	Reference
C	Celsius	Hd	Head	Reg	Regular
C.I.	Cast Iron	HEI	High Energy Ignition	Reman	Remanufactured
C.R.	Compression Ratio	Hi	High	Req'd	Required
C/L	Centerline	Hi. Alt	High Altitude	Rev	Revision
Calib.	Calibration	Hi-Perf	High Performance	Rev. Rot.	Reverse Rotation
Calif.	California	Hi-Temp	High Temperature	Rlr	Roller
Cam	Camshaft	HO	High Output	RMB	Rear Main Bearing
Can	Canada	Horiz	Horizontal	Rot.	Rotation
Carb	Carburetor	HP	Horsepower	RPM	Revolutions Per Minute
Cat	Catalytic	HSC	High Swirl Combustion	Rr	Rear
cc	Cubic Centimeter	Hyd	Hydraulic	RWD	Rear Wheel Drive
CCW	Counter Clockwise	I/C	Intercooler	S/C	Supercharged
CD	Compression Distance	I.D.	Identification	Seal. Rings.	Sealing Rings
CFFI	Cross Fire Injection	ID	Inside Diameter	Ser	Serial or Series
CFI	Central Fuel Injection	IDI	Indirect Injection	Ser No.	Serial Number
CFM	Cubic Feet per Minute	In. Frm	In Frame	SFI	Sequential Fuel Injection
CID	Cubic Inch (Displacement)	In	Inch	Slv	Sleeve
Cld	Cooled	Incl	Includes	SOHC	Single Overhead Cam
Clg	Cooling	Ind	Industrial	Spd	Speed
Clr	Cooler	Inj.	Injection	Spec	Special
cm	Centimeter	Int	Intake	Sta.	Station
Cntr. Bore	Counter Bore	Inter	Intermediate	Std.	Standard
Compl	Complete	L	Liter	Sys	System
Con. Rod	Connecting Rod	L.H.	Left Hand	T/C	Turbocharged
Cruise	Cruise Control	L/D	Light Duty	Tach	Tachometer
Ctr.	Center	Lgth.	Length	TBI	Throttle Body Injection
CW	Clockwise	LPG	Liquid Propane Gas	Temp.	Temperature
Cyl.	Cylinder	M/D	Medium Duty	TPI	Turned Port Injection
Cyl. Head	Cylinder Head	M/T	Manual Transmission	Trans.	Transmission
DC	Direct Current	Man	Manual	Trk	Truck
Deg.	Degree	Man. Trans.	Manual Transmission	TTY	Torque-to-Yield
DFI	Digital Fuel Injection	Max.	Maximum	TURBO	Turbocharged
DI	Direct Injection	Mech	Mechanical	U/S	Under Size
Dia	Diameter	MFI	Multi-Port Fuel Injection	Veh.	Vehicle
Dim	Dimension	Min.	Minimum	VIN	Vehicle Identification Number
Dir. Inj.	Direct Injection	mm	Millimeters	VIV	Valve
Disc.	Discontinued	MPH	Miles Per Hour	VSS	Valve Stem Seal
Dist.	Distributor	Mtl	Material	w/	With
DOHC	Dual Overhead Camshaft	N/A	Not Available	w/o	Without
Dr	Door to Drive	N/R	Not Required	Wagon	Station Wagon
E.E.C.	Electronic Engine Control	Nat	Natural	Wt.	Weight
E.I.S.	Electronic Ignition System