Machine models

John Deere 300B, 302A, 310A and 401C: loader and backhoe configurations

300B engine identity includes the fuel type

Deere's 300B reference separates the gasoline and diesel engines even though both have three cylinders. Their displacements differ. Its idle-speed and engine-service rows also distinguish the two fuel types, so the machine's model alone does not select every engine specification.

The 300B collar-shift transmission has a hydraulic reverser. Deere publishes reverser pressure separately from the closed-center implement system's standby pressure. The transmission pump's test flow is not the loader pump's delivery.

A gauge reading needs the tested circuit and the stated engine-speed condition attached before it can support a diagnosis.

Source: Original Deere 300B loader/backhoe reference, engine, reverser and hydraulic sections.

302A loader weight does not include every possible rear attachment

The 302A sales sheet describes a loader that can accept a backhoe, three-point hitch, drawbar or PTO equipment. Its standard operating-weight condition names the tires, utility bucket and other equipment. A complete loader-backhoe weighs differently from the base loader; a single number cannot describe every combination.

The constant-mesh transmission and hydraulic direction reverser are described together, while a collar-shift arrangement appears separately in the equipment list. Match the installed transmission before assuming every 302A uses the same shift controls. The sheet also separates transmission/hydraulic refill from the loader hydraulic compartment.

Source: Deere 302A original sales sheet, equipment conditions, transmission and capacities.

401C hydraulic tests change with the circuit and serial range

The 401C reference distinguishes the loader circuit from the two named backhoe arrangements. Their relief settings differ by function, including crowd, swing and boom raise. A figure from a backhoe boom circuit must not be treated as a universal pressure adjustment for the loader.

Deere also divides cooler-bypass behavior at a stated serial break. The same table gives separate new-pump and used-pump test conditions. Those flows are acceptance measurements at the specified pressure and speed; they are not automatically the maximum attachment flow during work.

Source: Deere 401C technical reference, March 1997, hydraulic and serial-break tables.

9250A reach depends on the point of measurement

The detachable 9250A backhoe sheet lists compatible 300B, 302A and 401C loader mountings. It distinguishes reach from the swing mast from reach measured at the rear axle, and gives mounting-specific transport heights. Neither reach can replace the other in a trench-positioning comparison.

Its boom and dipper lifting capacities are separate ratings. The sheet also names the bucket and tire conditions used for digging depth. The 310A reference column retains its own backhoe figures here; the 9250A compatibility list does not establish that attachment as a universal 310A fit.

Source: Original Deere 9250A attachment sheet, compatible loaders and operating dimensions.

Earlier reference entries and original manufacturer corrections
Model and fieldEarlier entryManufacturer figure and scopeSource
300B Aspirationnaturally aspirataedNaturally aspiratedOriginal document
300B Relief Valve Pressure475 psi475–525 psi, accumulator charge; not implement standby pressureOriginal document
302A Displacement164.8 cu in164 cu in (2.688 L), original302A diesel sheetOriginal document
302A Bore4.1 in102 mm (4.02 in)Original document
302A Stroke4.4 in110 mm (4.33 in)Original document
302A Max Weight6,261 lb7550 lb (3425 kg), SAE operating condition with14.9-24 R4 rear/11L-15 F3 front and3/4 yd3 utility bucket; backhoe listed separatelyOriginal document
302A Max Speed - Forward15.8 mph15.7 mph (25.3 km/h), eighth forwardOriginal document
302A Max Speed Reverse25.3 mph18.3 mph (29.4 km/h), eighth reverse; earlier25.3 mph mixed forward metric unitsOriginal document
302A Oil System Fluid Capacity2.3 gal9 US qt (8.5 L), engine lubrication including filterOriginal document
302A Cooling System Fluid Capacity3.1 gal
US gal
3
L
11.4
Original document
401C Relief Valve Pressure2,000 psi2000 psi, NEW pump flow-test measurement pressure at1800 rpm; implement standby2300–2400 psi separatelyOriginal document
401C Oil System Fluid Capacity2.3 gal9 US qt (8.5 L), original401C referenceOriginal document
Entries in this reference
Listing-entry count
4
Short answer

John Deere 300B, 302A, 310A and 401C: loader and backhoe configurations: backhoe loaders.

Selected configuration figures
ConfigurationDocumented field and quantity
300B
Net Power
43 hp
Pump Flow Capacity
20.6 gpm
302A
Gross Power
52 hp
Pump Flow Capacity
28 gpm
310A
Gross Power
62 hp
Pump Flow Capacity
28 gpm
401C
Net Power
62 hp
Pump Flow Capacity
20.6 gpm
300B to 401C specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
John Deere300B to 401C4300B, 302A, 310A, and 401C
Dimensions and weight
Specification300B302A310A
Transport Length15.75 ft15.33 ft23.56 ft
Transport Width6.67 ft6.24 ft6.83 ft
Specification300B310A
Transport Height7.58 ft11.23 ft
Specification302A
Wheelbase6.4 ft
Ground Clearance0.99 ft
Height To Top Of Suspended Cab7.55 ft
Specification302A310A
Front Wheel Tread Width61.82 in57.88 in
Rear Tread Range59.85 in64.97 in
Engine
Specification300B302A401C
Number Of Cylinders334
Specification300B401C
Engine Model300 Series300 Series
AspirationNaturally aspiratedNaturally aspirated
Specification300B302A310A401C
Net Power43 hp50 hp58 hp62 hp
Power Measured @2,500 rpm2,500 rpm2,500 rpm2,500 rpm
Torque Measured @1,300 rpm1,300 rpm1,300 rpm1,300 rpm
Displacement164 cu in164 cu in (2.688 L), original302A diesel sheet219.7 cu in219 cu in
Specification302A310A
Engine MakeJohn DeereJohn Deere
Gross Power52 hp62 hp
Bore102 mm (4.02 in)4.1 in
Stroke110 mm (4.33 in)4.5 in
Specification302A310A401C
Net Max Torque129 lb-ft150 lb-ft160 lb-ft
Operational
Specification300B302A310A401C
Fuel Capacity19.5 gal19.5 gal19.5 gal19.5 gal
Hydraulic System Fluid Capacity8.5 gal10 gal20.5 gal8.5 gal
Cooling System Fluid Capacity3 gal
US gal
3
L
11.4
3.1 gal3 gal
Tire Size Front - 2wd / 4wd11L-1511L-1511L-157.50/8.00-16F3/11L-15 F3
Rear Tires Size 2wd/4wd14.9-2414.9-2419.5L-2416.9-24R1/19.5L-24R4
Specification300B401C
Transmission Shared Refill (Same Combined Quantity)8.5 gal8.5 gal
Specification302A310A
Max Weight7550 lb (3425 kg), SAE operating condition with14.9-24 R4 rear/11L-15 F3 front and3/4 yd3 utility bucket; backhoe listed separately13,519 lb
Specification302A310A401C
Oil System Fluid Capacity9 US qt (8.5 L), engine lubrication including filter2.3 gal9 US qt (8.5 L), original401C reference
Operating Voltage12 V12 V12 V
Specification302A401C
Alternator Supplied Amperage35 amps35 amps
Specification401C
Turning Radius10.2 ft
Transmission and speeds
Specification300B302A310A401C
Transmission TypeCollar ShiftPower shuttleGearCollar shift with hydraulic reverser
Number Of Forward Gears8888
Number Of Reverse Gears8888
Specification302A310A401C
Max Speed - Forward15.7 mph (25.3 km/h), eighth forward16.5 mph16.4 mph
Max Speed Reverse18.3 mph (29.4 km/h), eighth reverse; earlier25.3 mph mixed forward metric units26.5 mph18.7 mph
Hydraulic
Specification300B302A310A401C
Pump Flow Capacity20.6 gpm28 gpm28 gpm20.6 gpm
Relief Valve Pressure475–525 psi, accumulator charge; not implement standby pressure2,350 psi2,350 psi2000 psi, NEW pump flow-test measurement pressure at1800 rpm; implement standby2300–2400 psi separately
Specification302A310A
Pump TypeClosed centerClosed center
Backhoe
Specification302A401C
Load Height - Std11.23 ft11.75 ft
Specification302A310A401C
Reach From Swivel - Std17.39 ft17.33 ft18.68 ft
Dig Depth - Std13.65 ft14.57 ft15.33 ft
Bucket Dig Force - Std7,408 lb9,636 lb9,650 lb
Specification401C
Reach At Load Height - Std21.92 ft
Dig Depth - Ext14.17 ft
Load At Max Lift - Ext3,300 lb
Load At Max Lift - Std1,950 lb
Load Height - Ext11.58 ft
Bucket Dig Force - Ext9,650 lb
Loader
Specification302A310A401C
Clearance At Max Dump Height8.14 ft8.76 ft8.5 ft
Reach At Max Dump Height2.33 ft2.43 ft2.75 ft
Lift Capacity At Full Height3,300 lb5,000 lb5,000 lb
Bucket Width81.11 in89.38 in89.4 in
Bucket Breakout Force5,000 lb7,500 lb7,500 lb
Specification401C
Dig Depth4 in
Bucket Capacity1.25 yd3
Variants — Source comparison annotation
Source guideDiffering-field count reported
300B to 401C51
Ratios
Figure302A310A
Engine horsepower per 1,000 lb of weight8.04.3
Reference calculations using the earlier specification entries
Figure300B302A310A401C
Pump flow per engine horsepower0.48 gpm0.56 gpm0.48 gpm0.33 gpm
Fuel tank per engine horsepower0.45 gal0.39 gal0.34 gal0.31 gal
Reference directory classification
Equipment groupbackhoe loader
Owner experience with the 300B to 401C — Historical owner-entry sample
IndexEntry queriedReviewsForum discussionsFirst review in sampleLast review in sample
TractorByNet302A, 310A, 401C backhoe loader533May 8, 2013Oct 22, 2014
ModelOwner ratingForum discussionsModel years reviewedPros named more than onceCons named more than once
302A4.0 of 5 from 2 owner reviews2 (3,007 views)1978 to 1983named once each: full featured, shuttle shift, floor as well as helm throttlenone named
310A4.0 of 5 from 2 owner reviews21 (566 views)1981named once each: price, well maintained, old machinenamed once each: size
401C4.0 of 5 from 1 owner review10 (1,000 views)1983named once each: shuttle shift, power, ease of operationnamed once each: the two piece entry door on cab

300B to 401C: owner reports

Sources: 4 forum discussions about the John Deere 310 series backhoe loaders (310C, 310E, 310SJ); heavyequipmentforums.com.
300B to 401C: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forums and TractorByNetbackhoe loaderJohn Deere and the 300B, 302A, 310A, 401C178
Topics named by those titles
Title topicTitles
hydraulics36
transmission and drive10
brakes and steering7
Topic in the titleThreadsShare of matching threads
hydraulics3620%
transmission and drive106%
brakes and steering74%
fuel system63%
electrical and sensors42%
Used market for the 300B to 401C — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderJohn Deere backhoe loader2
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
310A2Not stated$9,500$9,500$9,5005,959
300B to 401C: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionJohn Deere together with the backhoe loader 300B, 302A, 310A, 401CNo matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Reference site
Reference site
Owner reports
Forum threads
Forum threads
Forum threads
Used-market listings
Federal agency data
Recorded observations — Historical TractorByNet review observation
Reference scopeEquipment typeReviewed label in sourceOwner entriesAverage owner scoreScale maximumReported cons
300B, 302A and 310Abackhoe loader302A24.05No con named by multiple reviewers

John Deere 300B, 302A, 310A and 401C: loader and backhoe configurations: Configuration records

300B
SpecificationSource figure
Dimensions and weight
Transport Length15.75 ft
Transport Width6.67 ft
Transport Height7.58 ft
Engine
Number Of Cylinders3
Engine Model300 Series
Net Power43 hp
Power Measured @2,500 rpm
Displacement164 cu in
Torque Measured @1,300 rpm
AspirationNaturally aspirated [source]
Operational
Fuel Capacity19.5 gal
Cooling System Fluid Capacity3 gal
Tire Size Front - 2wd / 4wd11L-15
Rear Tires Size 2wd/4wd14.9-24
Hydraulic
Pump Flow Capacity20.6 gpm
Transmission and speeds
Transmission TypeCollar Shift
Number Of Forward Gears8
Number Of Reverse Gears8
Additional specifications
Combined Transmission And Hydraulic Refill8.5 gal [source]
Transmission Shared Refill (Same Combined Quantity)8.5 gal [source]
Accumulator Charge Pressure475–525 psi, accumulator charge; not implement standby pressure [source] [source]
Pump Test Standby And Cooler Serial ScopeNew pump minimum20.6 US gpm at2000 psi/1800 rpm; used pump19.5 US gpm at1750 psi/2000 rpm. Implement standby2300–2400 psi; accumulator475–525 psi. Cooler-bypass opening/reseat70/100 psi through serial282490 versus120/130 psi from282491. Flow-test pressure is not relief pressure. [source]
Gasoline Versus Diesel EngineOriginal300B reference: three-cylinder naturally aspirated gasoline152 cu in (2.5 L) versus diesel164 cu in (2.7 L), SAE net43 hp at2500 rpm. Collar-shift8 forward/8 reverse with hydraulic reverser; transmission-pump test separately7 gpm at150 psi/2500 rpm. [source]
9250A Attachment Measurement ScopeDetachable9250A lists300B/302A/401C mounting. Reach from swing mast17 ft5 in; from rear axle20 ft1 in for300B/302A and20 ft5.25 in for401C. Transport height10 ft11 in on300B/302A versus11 ft2 in on401C. Boom lift1200 lb; dipper2000 lb holding boom. Ratings specify24 in bucket and loader/tire equipment. Not universal310A compatibility. [source]

Source

302A
SpecificationSource figure
Backhoe
Load Height - Std11.23 ft
Dig Depth - Std13.65 ft
Reach From Swivel - Std17.39 ft
Bucket Dig Force - Std7,408 lb
Dimensions and weight
Wheelbase6.4 ft
Transport Length15.33 ft
Transport Width6.24 ft
Ground Clearance0.99 ft
Height To Top Of Suspended Cab7.55 ft
Front Wheel Tread Width61.82 in
Rear Tread Range59.85 in
Loader
Bucket Width81.11 in
Clearance At Max Dump Height8.14 ft
Reach At Max Dump Height2.33 ft
Lift Capacity At Full Height3,300 lb
Bucket Breakout Force5,000 lb
Engine
Number Of Cylinders3
Gross Power52 hp
Net Power50 hp
Power Measured @2,500 rpm
Displacement164 cu in (2.688 L), original302A diesel sheet [source]
Torque Measured @1,300 rpm
Engine MakeJohn Deere
Net Max Torque129 lb-ft
Bore102 mm (4.02 in) [source]
Stroke110 mm (4.33 in) [source]
Operational
Fuel Capacity19.5 gal
Oil System Fluid Capacity9 US qt (8.5 L), engine lubrication including filter [source]
Cooling System Fluid Capacity3 US gal (11.4 L) [source]
Tire Size Front - 2wd / 4wd11L-15
Rear Tires Size 2wd/4wd14.9-24
Operating Voltage12 V
Alternator Supplied Amperage35 amps
Hydraulic
Pump Flow Capacity28 gpm
Relief Valve Pressure2,350 psi
Transmission and speeds
Transmission TypePower shuttle
Number Of Forward Gears8
Number Of Reverse Gears8
Max Speed - Forward15.7 mph (25.3 km/h), eighth forward [source]
Max Speed Reverse18.3 mph (29.4 km/h), eighth reverse; earlier25.3 mph mixed forward metric units [source]
Additional specifications
SAE Operating Weight (Loader Equipment Condition)7550 lb (3425 kg), SAE operating condition with14.9-24 R4 rear/11L-15 F3 front and3/4 yd3 utility bucket; backhoe listed separately [source] [source]
Transmission And Hydraulic Shared Refill10 gal [source]
Hydraulic System TypeClosed center [source]
Pump Description And Loader RefillClosed-center constant-pressure variable-displacement piston pump28 US gpm at2500 engine rpm; max2350 psi. Loader hydraulic system separately2.5 US gal (9.5 L); transmission/hydraulic shared refill10 US gal (37.9 L). [source]
9250A Attachment Measurement ScopeDetachable9250A lists300B/302A/401C mounting. Reach from swing mast17 ft5 in; from rear axle20 ft1 in for300B/302A and20 ft5.25 in for401C. Transport height10 ft11 in on300B/302A versus11 ft2 in on401C. Boom lift1200 lb; dipper2000 lb holding boom. Ratings specify24 in bucket and loader/tire equipment. Not universal310A compatibility. [source]

Source

310A
SpecificationSource figure
Backhoe
Dig Depth - Std14.57 ft
Reach From Swivel - Std17.33 ft
Bucket Dig Force - Std9,636 lb
Dimensions and weight
Transport Length23.56 ft
Transport Width6.83 ft
Transport Height11.23 ft
Front Wheel Tread Width57.88 in
Rear Tread Range64.97 in
Loader
Bucket Width89.38 in
Clearance At Max Dump Height8.76 ft
Reach At Max Dump Height2.43 ft
Lift Capacity At Full Height5,000 lb
Bucket Breakout Force7,500 lb
Engine
Gross Power62 hp
Net Power58 hp
Power Measured @2,500 rpm
Displacement219.7 cu in
Torque Measured @1,300 rpm
Engine MakeJohn Deere
Net Max Torque150 lb-ft
Bore4.1 in
Stroke4.5 in
Operational
Fuel Capacity19.5 gal
Max Weight13,519 lb
Hydraulic System Fluid Capacity20.5 gal
Oil System Fluid Capacity2.3 gal
Cooling System Fluid Capacity3.1 gal
Tire Size Front - 2wd / 4wd11L-15
Rear Tires Size 2wd/4wd19.5L-24
Operating Voltage12 V
Hydraulic
Pump TypeClosed center
Pump Flow Capacity28 gpm
Relief Valve Pressure2,350 psi
Transmission and speeds
Transmission TypeGear
Number Of Forward Gears8
Number Of Reverse Gears8
Max Speed - Forward16.5 mph
Max Speed Reverse26.5 mph

Source

401C
SpecificationSource figure
Backhoe
Load Height - Std11.75 ft
Dig Depth - Std15.33 ft
Reach From Swivel - Std18.68 ft
Bucket Dig Force - Std9,650 lb
Reach At Load Height - Std21.92 ft
Dig Depth - Ext14.17 ft
Load At Max Lift - Ext3,300 lb
Load At Max Lift - Std1,950 lb
Load Height - Ext11.58 ft
Bucket Dig Force - Ext9,650 lb
Loader
Bucket Width89.4 in
Clearance At Max Dump Height8.5 ft
Reach At Max Dump Height2.75 ft
Lift Capacity At Full Height5,000 lb
Bucket Breakout Force7,500 lb
Dig Depth4 in
Bucket Capacity1.25 yd3
Engine
Number Of Cylinders4
Engine Model300 Series
Net Power62 hp
Power Measured @2,500 rpm
Displacement219 cu in
Torque Measured @1,300 rpm
AspirationNaturally aspirated
Net Max Torque160 lb-ft
Operational
Fuel Capacity19.5 gal
Oil System Fluid Capacity9 US qt (8.5 L), original401C reference [source]
Cooling System Fluid Capacity3 gal
Turning Radius10.2 ft
Tire Size Front - 2wd / 4wd7.50/8.00-16F3/11L-15 F3
Rear Tires Size 2wd/4wd16.9-24R1/19.5L-24R4
Operating Voltage12 V
Alternator Supplied Amperage35 amps
Hydraulic
Pump Flow Capacity20.6 gpm
Transmission and speeds
Transmission TypeCollar shift with hydraulic reverser
Number Of Forward Gears8
Number Of Reverse Gears8
Max Speed - Forward16.4 mph
Max Speed Reverse18.7 mph
Additional specifications
Combined Transmission And Hydraulic Refill8.5 gal [source]
Transmission Shared Refill (Same Combined Quantity)8.5 gal [source]
New Pump Flow Test Pressure2000 psi, NEW pump flow-test measurement pressure at1800 rpm; implement standby2300–2400 psi separately [source] [source]
Pump Test Standby And Cooler Serial ScopeNew pump minimum20.6 US gpm at2000 psi/1800 rpm; used pump19.5 US gpm at1750 psi/2000 rpm. Implement standby2300–2400 psi; accumulator475–525 psi. Cooler-bypass opening/reseat70/100 psi through serial282490 versus120/130 psi from282491. Flow-test pressure is not relief pressure. [source]
9250A Attachment Measurement ScopeDetachable9250A lists300B/302A/401C mounting. Reach from swing mast17 ft5 in; from rear axle20 ft1 in for300B/302A and20 ft5.25 in for401C. Transport height10 ft11 in on300B/302A versus11 ft2 in on401C. Boom lift1200 lb; dipper2000 lb holding boom. Ratings specify24 in bucket and loader/tire equipment. Not universal310A compatibility. [source]

Source

Compare John Deere 300B, 302A, 310A, 401C
Engine
Specification300B302A310A401C
Net Power43 hp50 hp58 hp62 hp
Power Measured @2,500 rpm2,500 rpm2,500 rpm2,500 rpm
Torque Measured @1,300 rpm1,300 rpm1,300 rpm1,300 rpm
Displacement164 cu in164 cu in (2.688 L), original302A diesel sheet [source]219.7 cu in219 cu in
Operational
Specification300B302A310A401C
Fuel Capacity19.5 gal19.5 gal19.5 gal19.5 gal
Measurement and equipment basis (specified in each cell)8.5 gal [source]10 gal [source]20.5 gal8.5 gal [source]
Cooling System Fluid Capacity3 gal3 US gal (11.4 L) [source]3.1 gal3 gal
Tire Size Front - 2wd / 4wd11L-1511L-1511L-157.50/8.00-16F3/11L-15 F3
Rear Tires Size 2wd/4wd14.9-2414.9-2419.5L-2416.9-24R1/19.5L-24R4
Transmission and speeds
Specification300B302A310A401C
Transmission TypeCollar ShiftPower shuttleGearCollar shift with hydraulic reverser
Number Of Forward Gears8888
Number Of Reverse Gears8888
Hydraulic
Specification300B302A310A401C
Pump Flow Capacity20.6 gpm28 gpm28 gpm20.6 gpm
Measurement and equipment basis (specified in each cell)475–525 psi, accumulator charge; not implement standby pressure [source] [source]2,350 psi2,350 psi2000 psi, NEW pump flow-test measurement pressure at1800 rpm; implement standby2300–2400 psi separately [source] [source]

More in John Deere: 310E–310K EP: controls/buckets/service units, Deere 110 TLB: auxiliary circuits/filters/serial breaks, 210C–510B.