isuzuengines.com

Certifications

Switchable dual fuel capable

use in off-highway and

industrial applications make

this alternative fuel engine

a natural progression.

Dependable PowerLP - 82.5 HP (61.5 KW) @ 1800 RPMLP - 56.3 HP (41.9 KW) @ 2200 RPM Natural Gas - 78.4 HP (58.5 KW) @ 1800 RPM Natural Gas - 79.8 HP (59.5 KW) @ 2200 RPM

U . S . E P A T i e r 2 P h a s e 3 C l a s s

s t a t i o n a r ye m e r g e n c y s t a t i o n a r y

(a natural progression)

Applications

Water Pump

Generator

Asphalt Paver

Hydraulic Pump

General Industria

l

Eco-Friendly

Agricultu

ral

Irrigatio

n

Refrigeratio

n

Isuzu Motors America, LLC46401 Commerce Center Drive Plymouth, Michigan 48170Phone: 734.582.9470Fax: 734.455.7581

ILS-4HV1-019-3 isuzuengines.com

PerformanceEngine Performance Curves

Available Options• Bottom drain oil pan• Cooling package• Air cleaner• Engine mounting• Skid base • Remote Oil Filter• Isolated / non-isolated power unit• Muffler for emergency standby

For additional information, please contact your local distributor or visit isuzuengines.com

Standard• Maintenance free 3-way catalyst* • Flywheel housings: SAE #3• Mixer• Electronic Pressure Regulator• Wire Harness• Knock Detection• Vaporizer (LP only)• ECM• Spark Ignition• Dry/replaceable cylinder liners• 2-year / 2,000-hour warranty• 500-hour oil drain & service interval

Engine Performance Curves

•4HV1 LP

•4HV1 NG

4HV1: 36.01 in. (914.7 mm) 4HV1: 26.03 in. (661.2 mm)

4HV

1: 3

6.05

in. (

915.

6 m

m)

Po

wer

Out

put

(HP

)T

orq

ue (L

B-F

T)

Engine Speed (RPM)

The power behind it all.

ALTERNATOR WITH (no load)EXHAUST RESTRICTION WITH

RUN IN TIME 30 HR

4HV1 COOLING FAN WITH

PERFORMANCE CURVE AIR INLET RESTRICTION WITH

No. IS-xx-xxx-x Rev. 03/15/2019CONDITION SAE J1349 NET w/Fan

ATMOSPHERIC CONDITION STANDARD

50

60

70

80

90

PO

WE

R O

UTP

UT

(HP

)

ENGINE SPEED (RPM)

LPG rated output 82.5 HP @ 1800 RPM

Natural Gas rated output 78.4 HP @

1800 RPM

TOR

QU

E (L

B-F

T) Natural Gas

max. torque 190.5 LB-FT @

2200 RPM

LPG max. torque 255 LB-FT @ 1400 RPM

LPG max. torque 134.5 LB-FT @ 2200 RPM

Natural Gas max. torque 235.4 LB-FT @ 1400 RPM

LPG rated output 56.3 HP @ 2200 RPM

Natural Gas rated output 79.8 HP @ 2200 RPM

*For LSI T2 applications