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49 Karma

Review on πŸ”§ URO Parts Acc. Belt Tensioner Assembly with NTN/NSK Bearing: Complete Mounting Bolt Included by Craig Mcdonald

Revainrating 4 out of 5

Good replacement tensioner, wrong screw

Inexpensive and fits my 2006 E90 330i. However, the bolt provided with the kit is not aluminum and CANNOT be used in the N52 engine. Steel bolts should never be used in a magnesium block.

Pros
  • Coil spring (where applicable) matches OE spring ratio for proper belt tension at all engine speeds
Cons
  • No performance