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Kubota KJ-T300 Generator Set

The Kubota KJ-T300 is a 26.4 kW (33 kVA) Diesel standby generator set powered by a Kubota V3300 engine. It is available at 240 V, single-phase, 50 Hz and rated 25 A. It holds about 10.4 L (2.7 gal) of oil and 14 L (3.7 gal) of coolant. Starting uses 1 group-12 battery at 12 V. The set measures 1730×805×1046 mm (68.1×31.7×41.2 in), weighs about 710 kg (1565 lb) and produces 73 dBA at 7 m. An integrated tank holds 60 L (15.9 gal), roughly 23.3 hours of runtime. The same V3300 engine also powers generator sets from Cummins/Onan.

26.4 kW
Standby
3.318 L
Displacement
10.4 L
Oil capacity
2
Document types

How to read your Kubota serial & model number →

Typical fuel consumption for 25–30 kW Diesel generators →

Compare with other 25–30 kW Diesel generators →

Service parts for the KJ-T300

Grouped by system, with how many of each the parts manual calls for.

Fuel system

1 required
1522143081Fuel filter$37.58eBay

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power26.4 kW
Standby kVA33
Prime power24 kW
Oil capacity10.4 L
AlternatorN/A (2-pole)
Voltage options240 V
PhaseSingle
Rated current25.0 A
Power factor0.8
Circuit breaker30 A
Battery group12 V (92 Ah)
Battery voltage12 V
Battery quantity1
Max ambient0 °C
Dimensions (L×W×H)1730×805×1046 mm
Dry weight710 kg
Sound level73.0 dBA @ 7 m
Fuel tank60.0 L
Tank runtime23.3 hr

Engine

Kubota V3300
Oil capacity10.4 L
Coolant capacity14.0 L
Displacement3.318 L
AspirationTurbocharged
Rated speed1800 rpm

Filters for the Kubota V3300

5

Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.

SystemFilterDescriptionCross-references
Oil filterP550963Lube Filter, Spin-On Full FlowNAPA 1084, BALDWIN B163, BOSCH-REXROTH 0451203154, BOSCH-REXROTH 0986452003 FridayParts $49.99
Oil filterP550318Lube Filter, Spin-On Full FlowKUBOTA 1505632432, KUBOTA 1609831291, NAPA 21521, NAPA H10W02 FridayParts $23.27

Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:

SystemFilterDescriptionCross-references
Fuel filterP502163Fuel Filter, Spin-OnNAPA 3386, BALDWIN BF954, ONAN 1492804, DITCH WITCH 153829 KuduParts $22.00
Fuel / water separatorP550390Fuel Filter, Water Separator Spin-OnKUBOTA 1K01143060, BALDWIN BF7534, DOOSAN 03198A, BOSCH-REXROTH 0986450514 buy
Fuel / water separatorP551039Fuel Filter, Water Separator Spin-On Twist&DrainNAPA 3192, BALDWIN BF1257, CLUB CAR 102614001, CLUB CAR 102703401 FridayParts $25.40 KuduParts $97.00

Same engine, other brands

1 brand

The Kubota V3300 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
Cummins/OnanMDKB

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterEvery 100 hours—500 hr
Fuel filterN/A1522143081500 hr Amazon eBay $37.58 KuduParts $13.00 FridayParts $15.69
Oil filterN/A1584132431500 hr Amazon eBay $17.99 PartsGeek $10.97 FridayParts $20.00
BatteryEvery 250 hours—500 hr
BeltEvery 250 hours—500 hr
OilEvery 500 hours5.7 L—500 hr

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

How many kW is the Kubota KJ-T300?

The Kubota KJ-T300 is rated 26.4 kW standby (33.0 kVA).

What engine does the Kubota KJ-T300 use?

The Kubota KJ-T300 is powered by the Kubota V3300 engine.

What kind of fuel does the Kubota KJ-T300 run on?

The Kubota KJ-T300 runs on Diesel.

What's the oil capacity on a Kubota KJ-T300?

The Kubota V3300 engine in the Kubota KJ-T300 has an oil capacity of 10.4 liters.

What is the coolant capacity of the Kubota KJ-T300?

The Kubota KJ-T300 cooling system holds 14 liters (3.7 US gallons) for the engine, per the manufacturer specification sheet.

What is the continuous rating of the Kubota KJ-T300?

The Kubota KJ-T300 is rated 24 kW prime (30 kVA), against 26.4 kW standby.

How loud is the Kubota KJ-T300?

The Kubota KJ-T300 is rated at 73.0 dBA at 7 m, per the manufacturer specification sheet.

What is the dry weight of the Kubota KJ-T300?

The Kubota KJ-T300 has a dry weight of 710 kg (1565 lb).

How big is the fuel tank on the Kubota KJ-T300?

The Kubota KJ-T300 has a 60 liter (16 US gallon) fuel tank, giving about 23.3 hours of runtime.

What voltages is the Kubota KJ-T300 available in?

The Kubota KJ-T300 is offered in 240 V, Single-phase.

How many cold cranking amps does the Kubota KJ-T300 require?

The Kubota KJ-T300 uses 1 battery, 12 V each, group 12 V (92 Ah), per the manufacturer specification sheet.

What alternator comes on the Kubota KJ-T300?

The Kubota KJ-T300 uses a N/A alternator. It has 2 poles.

What oil filter does the Kubota KJ-T300 use?

The Kubota KJ-T300 uses oil filter part number 1584132431.

What fuel filter does the Kubota KJ-T300 use?

The Kubota KJ-T300 uses fuel filter part number 1522143081.

Parts

14
Part #DescriptionQtySystem
AE00032Battery ChargingBattery Amazon eBay
EDL13000SDEBattery charge lamp1Battery Amazon eBay
EDL13000STEBattery charge lamp1Battery Amazon eBay FridayParts $8.17
EDL15000SDEBattery charge lamp1Battery Amazon eBay
EDL18000STEBattery charge lamp1Battery Amazon eBay
EDL30000STEBattery charge lamp1Battery Amazon eBay
KJ-S130VXBattery charge lamp1Battery Amazon eBay
KJ-S150VXBattery charge lamp1Battery Amazon eBay FridayParts $98.99
KJ-T130DXBattery charge lamp1Battery Amazon eBay FridayParts $457.50
KJ-T160DXBattery charge lamp1Battery Amazon eBay
KJ-T180VXBattery charge lamp1Battery Amazon eBay
KJ-T210VXBattery charge lamp1Battery Amazon eBay FridayParts $455.00
KJ-T300Battery charge lamp1Battery Amazon eBay FridayParts $102.99
9CG-28199-N0WARNINGService part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime25%1.60.4
Prime50%2.30.6
Prime75%3.40.9
Prime100%5.31.4
Standby25%3.10.8
Standby50%4.01.1
Standby75%4.91.3
Standby100%6.11.6

Available documents

Reference — catalog-kubota-generators (Kubota)Owner's manual — Kubota-Generators-KJSeries (Kubota)Parts manual — Kubota 50Hz Generator SP (Kubota)

This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter 1522143081$37.58
Oil filter 1584132431$10.97
2 priced items$48.55
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