Drivetrain› Clutches and Components

Spec Clutches

Stage 3+ Sprung Hub Clutch Kit

$1,271.00

SKU: SB533FS-NR

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The SPEC Stage 3+ Sprung Hub Clutch Kit is a performance clutch designed for BMW 135i, 335i (N54), and 335d models from 2007-2012. This kit provides smooth engagement and control, reducing harshness for a better driving experience on the road and track.

Ideal for high-power builds, including hybrid and big turbo applications, this clutch offers high torque holding capacity with a street-friendly pedal feel. Customers report excellent engagement, pedal feel, and dependable holding power.
Show original supplier description
The SPEC Stage 3+ Sprung Hub Clutch Kit (SB533FS-NR) is a high-performance clutch solution engineered for BMW 135i, 335i (N54 engine), and 335d models manufactured between 2007 and 2012. This clutch kit is ideal for enthusiasts seeking to handle significant power increases, such as those from hybrid or big turbo N54 builds, as well as for fast road cars, drag racing setups, and track day projects. It combines robust torque holding capabilities with a street-friendly pedal feel and precise engagement, transforming the driving dynamics of tuned BMWs. The sprung hub design of the clutch disc offers smoother engagement and improved drivability compared to rigid discs used with solid flywheels. This feature helps to mitigate harshness, especially during take-up, providing a more compliant and controlled experience. The kit is rated to hold 671 ft-lbs of torque when fitted with a new MFactory flywheel. Professional installation is recommended for this clutch kit. To ensure precise fitment, Nforcd will verify compatibility before dispatch and requests the customer's UK registration number or the last 7 digits of their VIN at checkout. The clutch is backed by a lifetime warranty from SPEC.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSpec Clutches
Part NumberSB533FS-NR
CategoryDrivetrain
5,000+ Trusted brands
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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