Milwaukee-Eight engine
E270604
The Milwaukee-Eight engine is Harley-Davidson’s modern V-twin powerplant, introduced to deliver improved performance, smoother operation, and better cooling while retaining the brand’s signature character.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T2472991 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Milwaukee-Eight engine Context triple: [Harley-Davidson, hasEngineType, Milwaukee-Eight engine]
-
A.
Mitsubishi Kinsei radial engine
The Mitsubishi Kinsei was a Japanese air-cooled radial aircraft engine widely used in World War II combat aircraft.
-
B.
BMW 801 radial engine
The BMW 801 radial engine was a powerful German World War II air-cooled aircraft engine widely used in Luftwaffe fighters and bombers, noted for its reliability and advanced engineering.
-
C.
SACM V8X-1500 Hyperbar diesel engine
The SACM V8X-1500 Hyperbar diesel engine is a high-performance, hyperbar turbocharged diesel powerplant developed to provide the French Leclerc main battle tank with exceptional mobility and acceleration.
-
D.
Mitsubishi Ha-104 radial engine
The Mitsubishi Ha-104 was a Japanese World War II-era twin-row, 18-cylinder air-cooled radial aircraft engine used to power several Imperial Japanese Army bombers and other combat aircraft.
-
E.
Nakajima Sakae radial engine
The Nakajima Sakae radial engine was a widely used Japanese air-cooled aircraft engine of World War II, best known for powering frontline Imperial Japanese Navy and Army fighters and bombers such as the Mitsubishi A6M Zero.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Milwaukee-Eight engine Target entity description: The Milwaukee-Eight engine is Harley-Davidson’s modern V-twin powerplant, introduced to deliver improved performance, smoother operation, and better cooling while retaining the brand’s signature character.
-
A.
Mitsubishi Kinsei radial engine
The Mitsubishi Kinsei was a Japanese air-cooled radial aircraft engine widely used in World War II combat aircraft.
-
B.
BMW 801 radial engine
The BMW 801 radial engine was a powerful German World War II air-cooled aircraft engine widely used in Luftwaffe fighters and bombers, noted for its reliability and advanced engineering.
-
C.
SACM V8X-1500 Hyperbar diesel engine
The SACM V8X-1500 Hyperbar diesel engine is a high-performance, hyperbar turbocharged diesel powerplant developed to provide the French Leclerc main battle tank with exceptional mobility and acceleration.
-
D.
Mitsubishi Ha-104 radial engine
The Mitsubishi Ha-104 was a Japanese World War II-era twin-row, 18-cylinder air-cooled radial aircraft engine used to power several Imperial Japanese Army bombers and other combat aircraft.
-
E.
Nakajima Sakae radial engine
The Nakajima Sakae radial engine was a widely used Japanese air-cooled aircraft engine of World War II, best known for powering frontline Imperial Japanese Navy and Army fighters and bombers such as the Mitsubishi A6M Zero.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
V-twin engine
ⓘ
motorcycle engine ⓘ |
| applicationType |
cruiser motorcycles
ⓘ
touring motorcycles ⓘ |
| brand | Harley-Davidson ⓘ |
| configuration | 45-degree V-twin ⓘ |
| coolingType |
air-cooled
ⓘ
liquid-cooled (select variants) ⓘ oil-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designGoal |
better cooling
ⓘ
improved performance ⓘ reduced mechanical noise ⓘ reduced vibration ⓘ retention of Harley-Davidson character ⓘ smoother operation ⓘ |
| displacementVariant |
107 cubic inches
ⓘ
114 cubic inches ⓘ 117 cubic inches ⓘ 121 cubic inches (CVO) ⓘ 131 cubic inches (crate/performance) ⓘ |
| feature |
counterbalancer (select variants)
ⓘ
dual spark plugs per cylinder (most variants) ⓘ higher compression ratio than Twin Cam ⓘ improved oiling system ⓘ revised combustion chamber design ⓘ single chain-driven camshaft ⓘ |
| firstModelYearInProduction | 2017 ⓘ |
| fuelSystem | electronic fuel injection ⓘ |
| improvedThrottleResponseComparedTo | Twin Cam engine ⓘ |
| improvedTorqueComparedTo | Twin Cam engine ⓘ |
| introducedInYear | 2016 ⓘ |
| manufacturer | Harley-Davidson ⓘ |
| marketedAs |
Harley-Davidson Street Glide
ⓘ
surface form:
Milwaukee-Eight 107
Milwaukee-Eight engine self-linksurface differs ⓘ
surface form:
Milwaukee-Eight 114
Milwaukee-Eight 117 ⓘ Milwaukee-Eight 117 ⓘ
surface form:
Milwaukee-Eight 121
Milwaukee-Eight engine self-linksurface differs ⓘ
surface form:
Milwaukee-Eight 131
|
| namedAfter |
Milwaukee
ⓘ
surface form:
Milwaukee, Wisconsin
|
| predecessor | Twin Cam engine ⓘ |
| primaryDisplacementVariant | 107 cubic inches ⓘ |
| reducedEngineHeatComparedTo | Twin Cam engine ⓘ |
| totalValves | 8 ⓘ |
| usedIn |
Harley-Davidson CVO models
ⓘ
Harley-Davidson Softail ⓘ
surface form:
Harley-Davidson Softail models
Harley-Davidson Road Glide ⓘ
surface form:
Harley-Davidson Touring models
Harley-Davidson Trike models ⓘ |
| valvesPerCylinder | 4 ⓘ |
| valvetrain | single overhead camshaft ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Milwaukee-Eight engine Description of subject: The Milwaukee-Eight engine is Harley-Davidson’s modern V-twin powerplant, introduced to deliver improved performance, smoother operation, and better cooling while retaining the brand’s signature character.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Harley-Davidson V-twin engines
this entity surface form:
Harley-Davidson Big Twin engines
subject surface form:
Harley-Davidson Touring
this entity surface form:
Milwaukee-Eight V-twin
this entity surface form:
Milwaukee-Eight 114
this entity surface form:
Milwaukee-Eight 131
this entity surface form:
replaced in most models by Milwaukee-Eight from model year 2017