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92500139 This Stage III kit has been developed to deliver the kind of real-world power increase Touring riders will feel each time they roll on the throttle. The bump up in displacement and compression paired with a Screamin' Eagle SE8-511 camshaft deliver a significant increase in torque and power over stock and may restore the sensation of riding solo when you're loaded down with a passenger and gear. Black Highlighted. Delivers up to 31% more horsepower and 18% more torque compared to the Original Equipment engine configuration. This street-compliant performance kit has been designed and tested as a system by the performance experts at Harley-Davidson. Includes 4.155" Big Bore Bolt-On Cylinders, Forged 10.9:1 High Compression Pistons and Rings, SE8-511 Camshaft, High Capacity Tappets, Stage III Timer Cover Medallion. Includes Multi-Layer Coated Head Gaskets, Cylinder Base and Cam Cover Gaskets, most necessary gaskets and seals. Pending 49-State U.S. EPA compliant. Race only.

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Part #: 92500139

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Specifications

Brand
Harley-Davidson Accessories
Part Number
92500139
OEM Reference
Pack Quantity
Each
Category
Big Bore Kits
VAT Rate
20%

About This Product

This Stage III kit has been developed to deliver the kind of real-world power increase Touring riders will feel each time they roll on the throttle. The bump up in displacement and compression paired with a Screamin' Eagle SE8-511 camshaft deliver a significant increase in torque and power over stock and may restore the sensation of riding solo when you're loaded down with a passenger and gear. Black Highlighted. Delivers up to 31% more horsepower and 18% more torque compared to the Original Equipment engine configuration. This street-compliant performance kit has been designed and tested as a system by the performance experts at Harley-Davidson. Includes 4.155" Big Bore Bolt-On Cylinders, Forged 10.9:1 High Compression Pistons and Rings, SE8-511 Camshaft, High Capacity Tappets, Stage III Timer Cover Medallion. Includes Multi-Layer Coated Head Gaskets, Cylinder Base and Cam Cover Gaskets, most necessary gaskets and seals. Pending 49-State U.S. EPA compliant. Race only.

Manufacturer part number: 92500139.

Fitment

11 models
Touring
11 models
Brand Year Model
Harley-Davidson 2024–2025 TOURING ROAD KING SPECIAL (FLHRXS) FLHRXS
Harley-Davidson 2024 TOURING ULTRA LIMITED (FLHTK) FLHTK
Harley-Davidson 2024–2026 TOURING STREET GLIDE (FLHX) FLHX
Harley-Davidson 2026 Street Glide® Limited FLHXL
Harley-Davidson 2026 CVO™ Street Glide® Limited FLHXLSE
Harley-Davidson 2026 CVO™ Street Glide® FLHXSE
Harley-Davidson 2026 CVO™ Street Glide® ST FLHXSTSE
Harley-Davidson 2025 TOURING STREET GLIDE ULTRA (FLHXU) FLHXU
Harley-Davidson 2024 TOURING ROAD GLIDE LIMITED (FLTRK) FLTRK
Harley-Davidson 2024–2026 ROAD GLIDE CUSTOM (FLTRX) FLTRX
Harley-Davidson 2026 Road Glide® Limited FLTRXL

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Who are we? Leeds Harley-Davidson - Iron City Motorcycles

Who are we? Leeds Harley-Davidson - Iron City Motorcycles

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