ACT 04-05 BMW 330i (E46) 3.0L XACT Flywheel Streetlite
The ACT 601160 XACT Streetlite is a forged chromoly single-mass flywheel for the 2004-2005 BMW 330i E46 with the 3.0L inline-six and a manual gearbox. Owners usually land here for one of two reasons: the factory dual-mass flywheel has started to rattle, clunk or shudder on takeoff and they do not want to replace it with another dual-mass unit, or they are upgrading the clutch and want the engine to rev and drop faster between shifts.
The flywheel carries the starter ring gear, gives the clutch disc its friction surface and stores rotating energy. The stock 330i flywheel is a dual-mass design, which uses internal springs to soak up crank pulses; when those springs and bearings wear, the car rattles at idle, knocks on tip-in and can chatter on launch. ACT describes the 601160 as a single-mass conversion: one forged piece with no springs to wear out, weighing 15.2 lb with a 240 mm (9.4 in) friction surface and an induction-hardened 113-tooth ring gear. Less rotating mass means quicker revs and faster rev-matching, at the cost of more noise transmitted to the gearbox.
Dual-mass wear is best checked with the transmission out: rock the secondary mass against the primary and look for excessive free play, grease weeping from the center, or a cracked face. With the car together, a rattle that disappears when the pedal is pushed points toward the flywheel or input bearing rather than the engine. If the complaint is RPM flare, read our flare vs. slip guide and the slipping diagnosis guide first so you are not chasing the wrong part.
This listing is for the 2004-2005 BMW 330i E46 3.0L. ACT's own chart for the 601160 also includes the 2004-2006 330Ci (with the 2005 M-trim 330i and 330Ci), 2004-2005 330xi, 2004-2005 530i and the 2004-2006 X3 2.5i and 3.0i. Earlier 2001-2003 330i cars are not on that chart, so do not assume they share it. Match your ring gear tooth count and bolt pattern to the old flywheel, or send us year and VIN to confirm.
Weighing a clutch and flywheel job against other drivetrain repairs? See our repair cost comparison.
| Brand | ACT |
| Part number | 601160 |
| Fits | ACT 04-05 BMW 330i (E46) 3.0L XACT Flywheel Streetlite |
| Vehicle fitment | BMW 330I (2004-2005) |
| Type | Flywheels |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Yes. ACT describes the 601160 as a single-mass flywheel conversion for the 2004-2005 330i. It replaces the dual-mass unit with one forged chromoly piece that has no internal springs to wear.
ACT states it works with both the factory clutch and ACT clutch kits. If you choose an ACT kit that is designated for use with the ACT flywheel, the two must be run together.
ACT lists it at 15.2 lb with a 240 mm friction surface. Expect quicker revs and faster rev-matching, plus OE to mild gear rattle at idle, which ACT says is normal.
ACT's chart lists the 2004-2006 330Ci, 2004-2005 330i and 330xi, 2004-2005 530i and 2004-2006 X3. 2001-2003 330i cars are not on that chart. Send us year and VIN to confirm.
Yes, ACT includes flywheel bolts (M12-1.5 x 25 mm). Torque them in a cross pattern to the BMW specification on a clean crank flange.
Yes. ACT says XACT flywheels can be resurfaced like a stock flywheel on a grinder in good condition, removing only enough material to clean up the face.
