Comprehensive Kit: Includes Onan OEM oil filter 122-0833, 3 quarts of 15W40 Onamax oil 326-5336, and a GPS oil filter wrench. Fits Specific Models: Compatible with RV generator Quiet Diesel 6000, 7500, and 8000 models HDKAH, HDKAJ, HDKAK. OEM Parts: Contains genuine Onan manufacturer parts required for an oil change. Easy Oil Change: All necessary hard parts and oil for a complete generator oil change. Versatile Kit: Suitable for all specs of the listed Onan Quiet Diesel 6KW, 7.5KW and 8KW generator models. This comprehensive kit contains all the essential OEM components required for an oil change on your Onan Quiet Diesel RV generator models 6000, 7500, and 8000 (HDKAH, HDKAJ, HDKAK). Included in the kit is a genuine Onan oil filter (PN: 122-0833), three quarts (2.8 liters) of 15W40 Onamax oil (PN: 326-5336), and a GPS oil filter wrench for easy installation. Designed specifically for these Onan generator models, this kit ensures optimal performance and longevity for your RV's power source. With all the necessary OEM parts conveniently packaged together, you can easily maintain your generator and keep it running smoothly during your adventures on the road. Regular oil changes are crucial for extending the lifespan of your generator, and this kit simplifies the process, making it a must-have for responsible RV ownership.