HomeSuspension > Suspension, Springs and Related ComponentsURO 31126758519PRM Suspension Control Arm - Front Left Lower
Part #: 31126758519PRM

URO 31126758519PRM Suspension Control Arm - Front Left Lower

Replaceable Full-Metal Ball Joint Upgrade, Front Left Lower
35 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Replaceable Full-Metal Ball Joint Upgrade, Front Left Lower
Fitment: BMW, 323Ci, 323i, 325Ci, 325i, 328Ci, 328i, 330Ci, 330i, and Z4
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of URO Replaceable Full-Metal Ball Joint Upgrade

The URO Replaceable Full-Metal Ball Joint Upgrade (part number 31126758519PRM) is designed specifically for front left lower suspension control arm applications on select BMW models. This pre-greased, bolt-in ball joint assembly offers a durable solution for maintaining precise suspension geometry and vehicle handling.

  • Pre-greased ball joint for immediate use
  • Bolt-in mounting type with threaded ball joint stud
  • High strength steel ball joint housing
  • Metal bearing material for enhanced durability
  • Includes dust boot made of neoprene in black color
  • Locking nut included for secure installation
  • Compatible with BMW 323Ci, 323i, 325Ci, 325i, 328Ci, 328i, 330Ci, 330i, and Z4 models

Product Line Details: Replaceable Full-Metal Ball Joint Upgrade

The Replaceable Full-Metal Ball Joint Upgrade line by URO focuses on providing robust suspension components with full-metal ball joints designed for longevity and reliable performance. This product line emphasizes replaceability and strength, featuring metal bearing materials and high strength steel housings to withstand demanding driving conditions. The 31126758519PRM part benefits from this design philosophy, offering a solid upgrade for BMW front left lower control arms.

Detailed Product Description

This suspension control arm assembly includes a pre-greased ball joint with a threaded stud sized M12x1.5 and M14x1.5, designed for bolt-in installation. The ball joint housing is constructed from high strength steel, while the bearing material is metal, ensuring durability under load. The included dust boot is made from neoprene, providing protection against contaminants and extending the life of the joint. Although grease fittings are not included and the ball joint is not greaseable after installation, the pre-greased design supports maintenance-free operation. The locking nut is included to secure the ball joint stud, with wrench sizes 19 and 22 applicable for installation.

Common Applications and Problem Solving

  • Replacement of worn or damaged front left lower suspension control arm ball joints on compatible BMW models
  • Addressing suspension noise or looseness caused by ball joint wear
  • Improving steering response and alignment stability
  • Restoring proper suspension geometry for safer handling
  • Preventing premature wear due to dust and debris with neoprene dust boot

Installation Notes and Tips

  • Designed for bolt-in installation; ensure proper torque specifications are followed
  • Use appropriate wrench sizes (19mm and 22mm) for ball stud nut installation
  • Verify compatibility with BMW 323Ci, 323i, 325Ci, 325i, 328Ci, 328i, 330Ci, 330i, and Z4 models before installation
  • Inspect surrounding suspension components during replacement for additional wear
  • Alignment check recommended after installation

Quality Assurance

URO suspension components are manufactured to meet or exceed OEM specifications, ensuring reliable fit and function. The Replaceable Full-Metal Ball Joint Upgrade line is engineered for durability with high strength materials and protective dust boots. While specific warranty details are not provided, URO products typically adhere to industry standards for quality and performance.

BrandURO
Part Number31126758519PRM
PositionReplaceable Full-Metal Ball Joint Upgrade, Front Left Lower
Pre-GreasedYes
Grease Fitting IncludedNo
Bushings IncludedNo
Ball Joint Mounting TypeBolt-in
Ball Joint Stud TypeThreaded
Ball Joint IncludedYes
AdjustableNo
Adjustment Range (Deg)45
Ball Joint Bearing MaterialMetal
Ball Joint Housing MaterialHigh strength steel
Ball Stub Thread SizeM12x1.5 & m14x1.5
Ball Stud Nut Wrench Size19 & 22
C Clip IncludedNo
Castle Nut IncludedNo
Control Arm PositionFront left lower
Cotter Pin IncludedNo
Dust Boot ColorBlack
Dust Boot IncludedYes
Dust Boot MaterialNeoprene
GreaseableNo
Locking Nut IncludedYes
Weight6.85

This part fits 35 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008BMWZ43.0LL6Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2007BMWZ43.0LL6Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2006BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2006BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2006BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2006BMWZ43.0LL6Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2005BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2005BMW325iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2005BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2005BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2005BMWZ4Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2004BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2004BMW325iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2004BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2004BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2004BMWZ4Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2003BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2003BMW325iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2003BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2003BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2003BMWZ4Front Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2002BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2002BMW325iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2002BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2002BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2001BMW325CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2001BMW325iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2001BMW330CiFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2001BMW330iFront Left LowerWithout Sport Suspension; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2000BMW323CiFront Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2000BMW323iFront Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2000BMW328CiFront Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
2000BMW328iFront Left LowerComes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
1999BMW323iFront Left LowerUp to production 7/99, control arm bushings must be replaced due to a change in diameter size.; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade
1999BMW328iFront Left LowerUp to production 7/99; Comes With Replaceable Full Metal Ball Joints vs OEM Rubber Insulated Ball Joints Prone to Failure; Easy to Replace Ball Joints Using Standard Tools; Replaceable Full-Metal Ball Joint Upgrade

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

101-5107102-510712-51931 12 1 094 46531 12 2 343 35331 12 6 751 31731 12 6 752 71731 12 6 758 519MY31 12 6 770 24731 12 6 774 81931 12 6 777 85131126758519PRM371 06055 502371 06055 681507-1302520-919CK80527K80527RK80527SCA0167PURO-011482V20-0293

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.