Sun Coast Cycle Sports carries inspected used parts for the 2017 Harley-Davidson FLHTKSE CVO Limited equipped with the Twin-Cooled Milwaukee-Eight 114 engine (1868cc). This single model year represents the first Milwaukee-Eight powered CVO Limited, bridging the Twin Cam and M8 117 eras. Our Florida technicians photograph and catalog each component individually, assigning unique SKUs before listing with free shipping throughout the continental United States.
FLHTKSE CVO Limited 114ci generation and parts compatibility
The 2017 FLHTKSE CVO Limited holds a unique position in Harley-Davidson history as the first CVO touring model with the Milwaukee-Eight engine. It used the Twin-Cooled M8 114 (1868cc), positioned between the previous Twin-Cooled Twin Cam 110 (2014-2016) and the M8 117 that became the CVO standard from 2018 onward.
| Years | Engine | Displacement | Notes |
|---|
| 2014-2016 | Twin-Cooled Twin Cam 110 | 1803cc | Previous generation (not compatible) |
| 2017 | Twin-Cooled Milwaukee-Eight 114 | 1868cc | This page - first M8 CVO |
| 2018+ | Twin-Cooled Milwaukee-Eight 117 | 1923cc | Different displacement |
The Milwaukee-Eight 114 represents a significant architectural change from the Twin Cam. The M8 uses four valves per cylinder (eight total, hence the name), a single camshaft rather than twin cams, dual spark plugs per cylinder, and a precision oil-cooling system for the pistons combined with liquid-cooled cylinder heads on Twin-Cooled variants. The 114 displacement comes from a 4.016-inch bore and 4.5-inch stroke, producing approximately 124 ft-lbs of torque.
The 2017 FLHTKSE shares its Milwaukee-Eight Touring chassis with the standard 2017 FLHTK Ultra Limited, FLHX Street Glide, FLTR Road Glide, and FLHR Road King. Frame, swingarm, Showa Dual Bending Valve front suspension, and rear suspension components interchange within the 2017+ M8 Touring family. The M8 107 (standard) and M8 114 (CVO/Special) share external dimensions and most external components, differing primarily in cylinder bore size and resulting displacement.
Common FLHTKSE CVO Limited 114ci failure points and replacement parts
Oil sumping issue (2017-2019): Early Milwaukee-Eight engines including the 2017 CVO Limited experienced an oil sumping condition documented in Harley Service Bulletin M1450. Oil accumulates in the crankcase instead of returning to the oil tank, particularly during extended high-RPM operation. Symptoms include power loss, oil blowing from breathers, and low oil tank levels. The fix involves an updated oil pump assembly (P/N 62400247 for touring models) and revised crankcase ventilation. Bikes built after late May 2019 incorporated these updates at the factory.
Coolant system maintenance: The Twin-Cooled system requires regular coolant level monitoring and periodic changes. The radiator integrated into the lower fairing can develop leaks at connections. The water pump seal is a wear item. Use only Harley-specified coolant to prevent corrosion and maintain proper heat transfer.
Hydraulic lifter tick: Some owners report hydraulic lifter noise, particularly when cold. In most cases this quiets as the engine reaches operating temperature and is within normal parameters. Persistent noise at operating temperature may indicate a lifter issue requiring inspection.
Compensator noise: The Milwaukee-Eight uses a compensator in the primary drive that can develop a clunking sound on deceleration. This is characteristic of the design rather than a defect. Aftermarket compensator upgrades are available for those who find the noise objectionable.
Boom Box 6.5GT issues: The infotainment system can experience screen failures, GPS malfunctions, Bluetooth connectivity problems, and speaker degradation. Software updates address some issues, but hardware failures require component replacement.
Commonly replaced FLHTKSE CVO Limited 114ci parts
- Oil pump assembly (updated version)
- Coolant hoses and water pump seal
- Compensator sprocket
- Boom Box components and speakers
- Tour-Pak latches and seals
- Saddlebag hardware
- Brake pads and rotors
- Suspension components
Frequently asked questions
Q: Will parts from a 2014-2016 Twin Cam CVO Limited fit my 2017 Milwaukee-Eight CVO Limited?
Very limited interchange. The Twin Cam and Milwaukee-Eight are completely different engine architectures. Engine components do not interchange. Many chassis dimensions changed with the M8 platform, affecting frame components, suspension, and bodywork mounting. Some accessories like Tour-Pak internals, saddlebag liners, and certain trim pieces may fit both, but always verify compatibility. Treat the 2014-2016 TC110 and 2017+ M8 platforms as separate families.
Q: Are 2017 Milwaukee-Eight 114 parts compatible with 2018+ Milwaukee-Eight 117?
Most external engine components interchange between M8 114 and M8 117. Exhaust systems, air cleaners, cam covers, and most accessories fit both displacements. Internal components including pistons, cylinders, and heads differ due to the bore size change (4.016" on 114 vs 4.125" on 117). Chassis components, frame, suspension, and bodywork from 2017+ M8 Touring models generally interchange regardless of engine displacement.
Q: What makes the 2017 CVO Limited special compared to other model years?
The 2017 FLHTKSE is the only model year CVO Limited with the Milwaukee-Eight 114 engine. It represents a transition year between the Twin Cam 110 (2014-2016) and the M8 117 that became standard on CVO touring models from 2018 forward. This makes 2017 CVO Limited 114 engine-specific parts less common than either the preceding TC110 or subsequent M8 117 components. The 2017 also introduced the new Milwaukee-Eight platform with its four-valve heads and single-cam design to the CVO lineup.
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