RARAYC Cummins Onan 6000–8000 Fuel/Air/Oil Filter Kit — 3-in-1 OEM-fit replacement for Quiet Diesel generators

Complete 3-in-1 filter kit engineered to replace fuel, air and oil filters on Cummins Onan 6000–8000 Quiet Diesel generator models for reliable maintenance between service intervals.

Keep your Cummins Onan Quiet Diesel generator running smoothly with the RARAYC Fuel/Air/Oil Filter Kit. This kit bundles a fuel filter (#149-2513), a spin-on oil filter (#122-0833) and an air filter (#140-2897) that fit a wide range of Onan Quiet Diesel and QD series engines. Each component is made to match OEM dimensions and filtration needs so installers can swap parts quickly and get equipment back into service with confidence.

Which Cummins Onan models will these filters fit?

These filters are designed for direct fitment with many Onan Quiet Diesel and QD series generators. They cover multiple model families and model-variant suffixes so you can cross-reference against your unit’s part numbers.

• Quiet Diesel families: HDCAA, HDCAB, HDKAH, HDKAJ, HDKAK, HDKBA, HDKCA/CB (various A–K/E ranges)
• QD and larger sets: QD 3200/6000/8000/10000/12500 series and HQDPA/HQDPC models
• Replaces common OEM numbers: AF27906, LF3591, FF236, 1402897, 1220833, 1492513 and compatible equivalents

How do these filters improve routine maintenance?

The kit groups the three primary service filters needed for scheduled generator maintenance, saving time sourcing parts. Using matched filters helps maintain proper fuel flow, oil pressure and clean intake air which supports operational stability during heavy loads.

• One-package convenience: fuel, oil and air filters included
• Simplifies service visits—swap all three during a single maintenance window
• Reduces risk of incorrect replacements with matched part numbers

What should I know about installation and service intervals?

Installation follows standard generator service procedures: drain if needed, replace filters, and check seals and fittings. For typical conditions replace filters every 500 operating hours; in dusty or contaminated environments shorten intervals accordingly.

• Oil filter: spin-on design for quick hand-tighten replacement
• Fuel filter: direct-fit element to protect injectors and lines
• Air filter: media designed to trap particulates without restricting airflow

Are warranties or performance details available?

RARAYC provides a one-year warranty on the kit covering manufacturing defects. The parts are built to match OEM dimensions and filtration needs, but routine inspection and timely replacement remain important to protect the generator’s engine and fuel system.

• 1-year limited warranty against defects
• Manufactured to OEM-equivalent size and fit specifications
• Follow manufacturer torque and disposal guidelines when installing

Who is this for: The RARAYC Fuel/Air/Oil Filter Kit is intended for owners, fleet managers and service technicians who maintain Cummins Onan Quiet Diesel and QD series generators and want an all-in-one replacement solution that matches original part numbers. It’s particularly useful for preventive maintenance programs, seasonal servicing before peak use, or when performing a complete filter refresh during scheduled downtime.