Delphi TC6458 Suspension Coil Spring Seat - Front Upper

OE-Style Front Upper Coil Spring Seat

Delphi TC6458 is a standard replacement suspension coil spring seat for the front upper position. Built with rubber construction and OE-focused dimensional control, it is made for Toyota and Lexus applications that need a precise spring interface and stable suspension support.

Key Features

• Rubber construction with a black finish
• Standard replacement grade for OE-style service
• Front upper position fitment
• Inside diameter: 31.0 mm (4.41 in)
• Outside diameter: 138.0 mm (5.43 in)
• Engineered using dimensional and material analysis for OE-to-aftermarket compatibility
• Tested for temperature extremes below -40 C and above 120 C, plus 720 hours of salt spray exposure

Detailed Description

Delphi TC6458 suspension coil spring seat is designed for the front upper location on a wide range of Toyota and Lexus vehicles, including Toyota Sienna, Avalon, Camry, Solara, Highlander, and Lexus ES and RX models. The rubber construction helps maintain the spring’s seating surface while supporting consistent suspension geometry in everyday driving. If you are replacing a worn front upper spring seat on a Toyota Camry, Toyota Avalon, or Lexus RX350, Delphi TC6458 provides an OE-style service part built around factory fit and material compatibility.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 1998-2017 Toyota Sienna, Front Upper
• Fits 1995-2015 Toyota Avalon, Front Upper
• Fits 1995-2015 Toyota Camry, Front Upper
• Fits 2007-2012 Lexus ES350, Front Upper
• Fits 2007-2009 Lexus RX350, Front Upper
• Fits 2006-2008 Lexus RX400h, Front Upper
• Fits 1999-2008 Toyota Solara, Front Upper
• Fits 2001-2007 Toyota Highlander, Front Upper
• Fits 2004-2006 Lexus ES330, Front Upper
• Fits 2004-2006 Lexus RX330, Front Upper
• Fits 1995-2003 Lexus ES300, Front Upper
• Fits 1999-2003 Lexus RX300, Front Upper

Common Replacement Reasons

• Front upper spring seat rubber is cracked, hardened, or deteriorated
• Suspension noise develops from worn spring seating surfaces
• Ride quality changes after spring or strut service
• Spring alignment or seating becomes inconsistent on Toyota and Lexus front suspension systems

Installation Notes

Verify the front upper position and compare the original seat dimensions before installation. Inspect the surrounding spring, strut, and mounting components for wear, and replace any damaged parts that could affect spring seating or suspension alignment. Confirm vehicle application by year, make, model, and position before ordering Delphi TC6458.

Quality Assurance

Delphi applies OE-level dimensional and material analysis to support fitment consistency, and this part is tested across temperature extremes and salt spray exposure to evaluate durability in demanding conditions.