Cummins Onan OEM Tune-Up Kit for KY and KYD 4000 Non-EVAP RV Generators with 15W-40 Oil

Description

The Cummins Onan tune-up kit provides genuine OEM maintenance components for routine servicing of select KY and KYD 4000 non-EVAP RV generators. This kit includes an air filter, fuel filter, spark plug, and two quarts of Cummins Onan OnaMax 15W-40 engine oil. It is designed to support scheduled generator maintenance when the included components match your specific generator configuration.

Before ordering, confirm your generator model, operating frequency, specification letter, serial number, and emissions configuration. Not every KY or KYD generator is compatible with this kit.

What’s Included in the Cummins Onan Tune-Up Kit?

This maintenance package contains the following genuine Cummins Onan components:

• 1 × 140-3280 air filter: Helps prevent airborne dust and debris from entering the engine.
• 1 × 149-2457 fuel filter: Helps remove contaminants from the fuel supply.
• 1 × 167-0275 spark plug: Supports dependable engine starting and ignition.
• 2 quarts of Cummins Onan OnaMax 15W-40 engine oil: Supplied for routine engine maintenance, subject to the generator’s specified oil requirements.

The package quantity is one maintenance kit. An oil filter is not included, so check your maintenance schedule and parts requirements before beginning service.

Cummins Onan Tune-Up Kit Compatibility

This kit is intended for select 4000-watt KY and KYD non-EVAP RV generators. Compatibility depends on the generator’s model, frequency, and specification letter.

Compatible KYD Generator Specifications

The stated compatible KYD configurations are:

• KYD 50 Hz: Specs A–B
• KYD 60 Hz: Specs A–B

Compatible KY Generator Specifications

The stated compatible KY configurations are:

• KY 50 Hz: Specs B–H
• KY 60 Hz: Specs B–H
• KY 50 Hz: Specs J–N and P
• KY 60 Hz: Specs J–N and P

Compatibility warning: This kit does not fit every KY specification from A through P. Specs I and O are not included in the stated compatibility. EVAP models may require different parts. Do not rely on the generator’s 4000-watt rating alone to determine fitment.

Verify your generator identification information against the applicable Cummins Onan parts documentation before purchasing.

Benefits of Genuine Cummins Onan OEM Maintenance Parts

Using the correct replacement components helps you follow the manufacturer’s maintenance requirements for your generator.

Air Filtration

The included 140-3280 air filter helps prevent airborne debris from entering the engine. Correct air filtration is an important part of routine engine maintenance, especially when an RV generator operates in dusty environments.

Fuel Filtration

The 149-2457 fuel filter helps remove contaminants from the fuel supply. Confirm the filter part number against your generator’s specifications before installation.

Ignition Maintenance

The 167-0275 spark plug supports dependable starting and ignition. Use the specified spark plug and follow the applicable service instructions for your generator.

Engine Oil

This kit supplies two quarts of Cummins Onan OnaMax 15W-40 engine oil. The correct oil type and required quantity depend on the generator’s specifications and service instructions.

Important oil warning: The entire two-quart quantity may not be required for your generator. Check the owner’s manual for the correct oil capacity and fill according to the dipstick procedure. Do not assume that both quarts must be added.

Product Specifications

Installation and Maintenance Guidance

Before performing maintenance, consult the owner’s manual and applicable service documentation for your exact generator model.

1. Confirm that your generator is a compatible KY or KYD 4000 non-EVAP configuration.
2. Verify the required air filter, fuel filter, and spark plug part numbers.
3. Review the recommended engine oil type and capacity.
4. Follow the manufacturer’s service procedures when replacing the included components.
5. Add engine oil according to the specified capacity and dipstick procedure rather than automatically using the entire supplied quantity.
6. Check your maintenance schedule to determine whether an oil filter or other service parts are also required.

If your generator’s specification letter, frequency, or emissions configuration is unclear, verify the identification information before purchasing.

Frequently Asked Questions

1. Which generators fit this Cummins Onan tune-up kit?

The kit is intended for select KY and KYD 4000 non-EVAP RV generators. Compatible KYD models are listed for Specs A–B at 50 Hz and 60 Hz. Compatible KY models are listed for Specs B–H and J–N and P at both frequencies. Specs I and O are excluded from the stated compatibility.

2. Does the kit include an oil filter?

No. The kit includes an air filter, fuel filter, spark plug, and two quarts of Cummins Onan OnaMax 15W-40 engine oil. An oil filter is not included.

3. Should I use both quarts of the supplied engine oil?

Not necessarily. The kit supplies two quarts, but the quantity required depends on your generator’s specified oil capacity. Check the owner’s manual and fill according to the dipstick procedure. Do not add the full quantity unless the manufacturer’s instructions call for it.

Order the Correct Generator Maintenance Kit

Keep your maintenance preparation straightforward by verifying compatibility before ordering. Confirm the model, frequency, specification letter, serial number, and emissions configuration of your RV generator, then compare the required components with the part numbers listed above.

Choose this genuine Cummins Onan maintenance kit only when the stated application matches your generator. Correct parts selection and adherence to the manufacturer’s maintenance instructions help you service your equipment with confidence.