PROMOTION WHILE SUPPLIES LAST - $874
& SPRUNG-HUB CLUTCH CONVERSION PACKAGE
Fits all 1999-2004 E46
323, 325, 328, 330 (5-speed only),
E39 530i, 528i
SPRUNG-HUB CLUTCH CONVERSION WITHOUT S.A.C. MECHANISM!
clutch kit technology
now available for E46 and E39.
Additional info: How
a lightweight flywheel works • Clutch
material choices • TECH
TIP - Clutch delay valve removal (recommended for all models)
news for E46 and E39 owners!
Many E46 owners (330, 328, 325, 323 models) have experienced mushy clutch
feel, inconsistent engagement, and premature wear of the clutch in their manual-transmission
cars. The reason is quite simple - the original BMW (LUK-manufactured)
clutch in the E46 (and E39) has a new "SAC" (Self Adjusting Clutch)
design. This new mechanism built into the clutch pressure plate is supposed
to keep the clutch pedal engagement point the same as the clutch wears...
but in all reality, it's a case of "an answer to a question that
nobody was asking." They have added a layer of complexity and feedback
isolation, filling a need that didn't need filling - it is not too often that
anybody notices that their clutch engagement point as moved 1/2" over
The SAC mechanism itself causes problems; it over- or under-adjusts the pressure
plate and therefore causes the clutch to slip or burn out prematurely. They
are also known to shift, causing the pressure plate release fingers to slip
off the plate, keeping 1/3 of the pressure plate engaged at all times. Bottom
line is that the only fix is a complete clutch job, and your dealer is likely
to claim "driver abuse". We have seen it happen too many times.
The SAC mechanism may not give a clean release like a standard clutch. Instead
of just two sets of springs, there is an adjuster mechanism that makes engagement
feel mushy or slow.
new UUC Performance Organic "direct-fit" clutch eliminates the SAC
mechanism and restores traditional clutch feel with predictable and crisp
This clutch has several advantages for the enthusiast
Maintaining the reliability
and over-the-counter availability of a BMW factory part.Greater clamping force than standard
3-series clutch.Elimination of the SAC
mechanism.Incorporates a sprung-hub
design for quiet operation with a heavy-duty steel pressure plate.The advantage
of a sprung-hub clutch design is improved resistance (and in many cases, complete
elimination) of the residual
chattering noise at idle that some lightweight flywheel-equipped cars
can experience.All kits come complete with flywheel, pressure plate, clutch disk, and
throwout bearing.Technical features:applications:
330 5-speed, 328, 325, 323
(all i, Ci, iT variants) E46 6-cylinder models with 5-speed
530i, 528i, 525i E39 5-series (1996-2003)
models with manual transmission only.construction:
CNC machined 6061-T6 aluminum
dowel pin hole:
enlarged like factory-fit.
replaceable, 1050 steel.
11,000rpm and spin-burst
tested to 14,000rpm. SFI
& clutch used:
UUC "Direct Fit"
replacement 330i 5-speed clutch kit
(standard BMW 330 5-speed clutch kit can be used as replacement)
Made in USA
price:$874All kits come complete with flywheel, pressure plate, clutch disk,
and throwout bearing.Professional