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Chrysler 3.9 Liter Gas Engine

The Chrysler 3.9 Liter Gas is a 3.9 L engine. It powers generator sets from Generac, including the 3.9 Liter Gas Engine. It holds 3.8 L (1.0 gal) of oil and 19.3 L (5.1 gal) of coolant.

Also known as: Chrysler 3.9 Liter Gas Engine

3.9 L

Displacement

3.8 L

Oil capacity

On this pageSpecs Generator sets Maintenance FAQ Service intervals Fluids Procedures

Engine specifications

Oil capacity	3.8 L
Coolant capacity	19.3 L
Displacement	3.9 L

Generator sets powered by this engine

Generac 3.9 Liter Gas Engine

Maintenance schedule

Item	Spec	Capacity	Part #
Air filter	Replace		—
Fuel filter	Replace on diesel engine driven units and re-prime the fuel system		—
Oil filter	Full Flow, Cartridge		—
Battery	Check electrolyte level if accessible; check posts, cables and charger for loose connections, corrosion and proper operation		—
Belt	Check for wear, weather cracking and damage; replace as necessary		—
Coolant	50-50 mixture of low silicate ethylene glycol base antifreeze and soft water	19.3 liters	—
Oil	SAE 15W-40; high-quality detergent oil classified "For Service CC, SD, SE or SF"	3.8 liters	—
Spark plug	Check, clean and re-gap or replace as necessary		—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

Item	Action	Hours	Months	Notes
Unit	Other	10 hr	1 mo	Level 1 - Recommended to be done monthly/10 hrs; approx. 0.5 man-hours per unit
Unit	Inspect	100 hr	12 mo	First service — Level 4 - Annual or following each 100 hours of operation; approx. 4.0 man-hours per unit

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Ambient	Capacity	Notes
Coolant	50-50 mixture of low silicate, ethylene glycol base antifreeze and soft water			19.3 liters	Cooling system: Pressurized, Closed Recovery; coolant capacity 19.3 liters (5.0 U.S. gallons); use only soft water and low silicate antifreeze; do not use chromate base rust inhibitor, high silicate antifreeze boosters/additives, or soluble oil inhibitor
Engine oil	SAE 15W-40	For Service CC, SD, SE or SF	above 27°C	3.8 liters	Ambient temperature above 80 degrees F (27 degrees C); crankcase oil capacity 3.8 liters (4.0 U.S. quarts); unit filled with break-in engine oil at the factory

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Steps to prevent the engine from starting automatically without warning before starting any maintenance maintenance

⚠ To prevent injury, perform the following steps in the order indicated before starting any maintenance.

Set the control panel AUTO-OFF-MANUAL switch to the OFF position.
Remove the control panel fuse.
Turn off the battery charger.
Remove the negative battery cable.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the oil capacity of the Chrysler 3.9 Liter Gas?

The Chrysler 3.9 Liter Gas engine has an oil capacity of 3.8 liters.

What is the displacement of the Chrysler 3.9 Liter Gas?

The Chrysler 3.9 Liter Gas has a displacement of 3.9 liters.

Which generators use the Chrysler 3.9 Liter Gas engine?

The Chrysler 3.9 Liter Gas powers 1 generator set(s), including Generac 3.9 Liter Gas Engine.