The Race Series® Oil System Packs for M8 dramatically improve oil flow, scavenge volume and overall oiling reliability for high-performance M-Eight engines.
Testing shows 42% more scavenge volume, 68% more oil volume to the crankshaft and rod bearings, 10–30 psi higher oil pressure, and cooler operating temperatures (engine 15°–25° cooler, oil 15°–30° cooler).
The design increases oil flow by enlarging pump reservoirs and critical passages, and by matching camplate portholes to the engine case to improve oil delivery to lifters, piston cooling jets, crankshaft and rod bearings.
FUELING® oil pumps are bench tested with the relief valve seated and sealed to a minimum of 30 psi and full pop off at 55–60 psi; these pumps and matched camplates eliminate common pressure and scavenge issues and reduce wet sumping and blow by.
Included: a Race Series® oil pump, full-travel or short-travel hydraulic roller lifters, high flow camplate and cam installation kit, cam bearing, cam and crank bolts and washers, plus engine and fastener assembly lube.
Optimized gear and passage sizing yields quieter, smoother operation, reduces oil aeration and scavenge issues, and has been shown to deliver measurable rear-wheel gains in horsepower and torque.
Made in the USA. M-Eight engines must verify front exhaust lifter to camshaft flange clearance during installation.
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Electra Glide Revival 114 | Touring | 2021 | |
| Harley Davidson | Electra Glide Highway King 114 | Touring | 2023 | |
| Harley Davidson | Road King 107 | Touring | 2017 | |
| Harley Davidson | Road King 107 | Touring | 2018 | |
| Harley Davidson | Road King 107 | Touring | 2019 | |
| Harley Davidson | Road King 107 | Touring | 2020 | |
| Harley Davidson | Road King 107 | Touring | 2021 | |
| Harley Davidson | Road King 107 | Touring | 2022 | |
| Harley Davidson | Road King Special 107 | Touring | 2017 | |
| Harley Davidson | Road King Special 107 | Touring | 2018 | |
| Harley Davidson | Road King Special 114 | Touring | 2019 | |
| Harley Davidson | Road King Special 114 | Touring | 2020 | |
| Harley Davidson | Road King Special 114 | Touring | 2021 | |
| Harley Davidson | Road King Special 114 | Touring | 2022 | |
| Harley Davidson | Road King Special 114 | Touring | 2023 | |
| Harley Davidson | Road King Special 114 | Touring | 2024 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2019 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2020 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2021 | |
| Harley Davidson | Electra Glide Standard 107 | Touring | 2022 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2017 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2018 | |
| Harley Davidson | Electra Glide Ultra Classic 107 | Touring | 2019 | |
| Harley Davidson | Trike Tri Glide Ultra Classic 107 | Trike | 2017 | |
| Harley Davidson | Tri Glide Ultra 107 | Trike | 2018 | |
| Harley Davidson | Tri Glide Ultra 107 | Trike | 2019 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2020 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2021 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2022 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2023 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2024 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2025 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2020 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2021 | |
| Harley Davidson | Tri Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Electra Glide Ultra Limited 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Shrine Edition 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2019 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2020 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2021 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2022 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2023 | |
| Harley Davidson | Glide Ultra Limited 114 | Touring | 2024 | |
| Harley Davidson | Electra Glide Ultra Limited Low 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Low 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Low 114 | Touring | 2019 | |
| Harley Davidson | Electra Glide Ultra Limited CVO 114 | CVO | 2017 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2019 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2020 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2021 | |
| Harley Davidson | Ultra Limited CVO Anniversary 117 | Touring | 2018 | |
| Harley Davidson | Street Glide 107 | Touring | 2017 | |
| Harley Davidson | Street Glide 107 | Touring | 2018 | |
| Harley Davidson | Street Glide 107 | Touring | 2019 | |
| Harley Davidson | Street Glide 107 | Touring | 2017 | |
| Harley Davidson | Street Glide 107 | Touring | 2018 | |
| Harley Davidson | Street Glide 107 | Touring | 2019 | |
| Harley Davidson | Street Glide 107 | Touring | 2020 | |
| Harley Davidson | Street Glide 107 | Touring | 2021 | |
| Harley Davidson | Street Glide 107 | Touring | 2022 | |
| Harley Davidson | Street Glide 107 | Touring | 2023 | |
| Harley Davidson | Street Glide 117 | Touring | 2024 | |
| Harley Davidson | Street Glide Special 107 | Touring | 2017 | |
| Harley Davidson | Street Glide Special 107 | Touring | 2018 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2019 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2020 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2021 | |
| Harley Davidson | Street Glide Special 114 | Touring | 2022 | |
| Harley Davidson | Street Glide Special Anniversary 114 | Touring | 2023 | |
| Harley Davidson | Street Glide CVO 114 | CVO | 2017 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2019 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Street Glide CVO 121 | CVO | 2023 | |
| Harley Davidson | Street Glide CVO 121 | CVO | 2024 | |
| Harley Davidson | Street Glide ST 117 | Touring | 2022 | |
| Harley Davidson | Street Glide ST 117 | Touring | 2023 | |
| Harley Davidson | Freewheeler 107 | Trike | 2017 | |
| Harley Davidson | Freewheeler 107 | Trike | 2018 | |
| Harley Davidson | Freewheeler 107 | Trike | 2019 | |
| Harley Davidson | Freewheeler 114 | Trike | 2020 | |
| Harley Davidson | Freewheeler 114 | Trike | 2021 | |
| Harley Davidson | Freewheeler 114 | Trike | 2022 | |
| Harley Davidson | Freewheeler 114 | Trike | 2023 | |
| Harley Davidson | Freewheeler 114 | Trike | 2024 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2020 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2021 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2022 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2023 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2024 | |
| Harley Davidson | Road Glide Limited CVO 117 | CVO | 2022 | |
| Harley Davidson | Road Glide Limited Anniversary CVO 117 | CVO | 2023 | |
| Harley Davidson | Road Glide 3 114 | Trike | 2023 | |
| Harley Davidson | Road Glide 3 114 | Trike | 2024 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2017 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2018 | |
| Harley Davidson | Road Glide Ultra 114 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2017 | |
| Harley Davidson | Road Glide 107 | Touring | 2018 | |
| Harley Davidson | Road Glide 107 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2017 | |
| Harley Davidson | Road Glide 107 | Touring | 2018 | |
| Harley Davidson | Road Glide 107 | Touring | 2019 | |
| Harley Davidson | Road Glide 107 | Touring | 2020 | |
| Harley Davidson | Road Glide 107 | Touring | 2021 | |
| Harley Davidson | Road Glide 107 | Touring | 2022 | |
| Harley Davidson | Road Glide 107 | Touring | 2023 | |
| Harley Davidson | Road Glide Special 107 | Touring | 2017 | |
| Harley Davidson | Road Glide Special 107 | Touring | 2018 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2019 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2020 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2021 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2022 | |
| Harley Davidson | Road Glide Special 114 | Touring | 2023 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2019 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Road Glide CVO 121 | CVO | 2023 | |
| Harley Davidson | Road Glide CVO 121 | CVO | 2024 | |
| Harley Davidson | Road Glide ST 117 | Touring | 2022 | |
| Harley Davidson | Road Glide ST 117 | Touring | 2023 | |
| Harley Davidson | Road Glide ST CVO 121 | CVO | 2024 |