What does 'Size Code 408' mean for this throttle body?

The 'Size Code 408' indicates a specific bore diameter chosen by S&S Cycle for this throttle body. This size is selected to optimize airflow for 2002-2005 Big Twin engines, balancing the need for increased air volume with maintaining proper air velocity for strong performance across the RPM range.

Is this throttle body kit a direct bolt-on replacement?

Yes, this kit is designed as a direct replacement for the stock throttle body on the specified 2002-2005 Harley-Davidson Big Twin models. Proper installation ensures a good seal and integration with your engine's intake system.

What other parts might I need when installing this throttle body?

While this is a complete throttle body kit, it's recommended to inspect and potentially replace intake seals and gaskets during installation to ensure a proper vacuum seal. You may also want to consider other performance upgrades that complement the improved airflow, such as an air filter and exhaust system.

S&S Cycle Cable Operated Throttle Body Kit 170-0340

Name: S&S Cycle 02-05 BT Size Code 408 Cable Operated Throttle Body Kit
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-02-05-bt-size-code-408-cable-operated-throttle-body-kit-t14-661522
Price: 995.95 USD
Availability: BackOrder

S&S Cycle 02-05 BT Size Code 408 Cable Operated Throttle Body Kit

$995.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 02-05 BT Size Code 408 Cable Operated Throttle Body Kit

Key Features

Fits 2002-2005 Harley-Davidson Big Twin models.
Cable operated throttle body for reliable control.
Size Code 408 is optimized for performance and torque on Big Twin engines.
Designed for improved engine airflow and responsiveness.
From S&S Cycle, a well-known manufacturer of engine components.

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Will this fit your vehicle?

Product Details

This is the S&S Cycle 02-05 Big Twin Size Code 408 Cable Operated Throttle Body Kit, designed for a wide range of Harley-Davidson motorcycles from 2002 to 2005. If you're looking to improve your engine's breathing and responsiveness, a well-built throttle body like this can make a notable difference. It's a key component in getting more air into your engine, which is essential for making more power, especially when paired with other performance upgrades.

S&S Cycle is known for making solid engine components, and this throttle body is no exception. It's built to handle the demands of a performance-oriented engine. The 'Size Code 408' refers to a specific bore size that S&S has found works well for these Big Twin applications, offering a good balance between airflow and maintaining proper air velocity for strong low-end torque. This kit is cable-operated, meaning it uses a physical cable to control the throttle plate, a familiar and reliable system for many riders.

When installing a new throttle body, it's important to ensure all connections are sealed properly to prevent vacuum leaks, which can cause drivability issues. This kit is designed to be a direct replacement for the stock throttle body on the specified 2002-2005 Big Twin models, simplifying the installation process. While this part is not CARB approved and cannot be shipped to California, it's a popular choice for builders looking to enhance the performance of their Harley-Davidson.