Delphi TD637W Suspension Control Arm Bushing - Front Lower Outer

Delphi TD637W Front Lower Outer Bushing

Delphi TD637W is a suspension control arm bushing built for the front lower outer position. It uses a rubber construction with a press-fit mounting style and standard replacement grade, making it a direct-service part for restoring suspension geometry and ride control on supported vehicles.

Compatible with select Ford Escort, Mercury Topaz, Saturn SC1, Saturn SC2, Saturn SL, Saturn SL1, Saturn SL2, Saturn SW1, and Saturn SW2 applications, this Delphi bushing is sized for OE-style fitment and material consistency. Delphi applies dimensional and material analysis to help match the aftermarket part to the original design.

Key Features

• Part number TD637W suspension control arm bushing
• Rubber construction with black finish
• Press-fit mounting type for the front lower outer position
• Standard replacement grade for service repairs
• Dimensions: 18.5 mm inside diameter, 27.0 mm outside diameter, 34.0 mm length, 40.0 mm width
• Built for OE-style compatibility on supported Ford, Mercury, and Saturn applications

Detailed Description

Delphi TD637W is a front lower outer suspension control arm bushing engineered for vehicles that use a press-fit rubber bushing in the control arm assembly. The rubber material helps isolate suspension movement while maintaining the alignment and control-arm support needed for stable handling. Delphi validates its steering and suspension parts through temperature and corrosion exposure testing, including operation below -40 degrees C, above 120 degrees C, and extended salt-spray exposure.

This part cross-references MOOG Chassis Products K8410 and K8436 for the same application. It is a practical replacement choice for drivers servicing Ford Escort and Mercury Topaz front lower outer bushings, as well as Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 models.

What It Helps Fix

• Excessive play or looseness in the front lower control arm
• Clunking or knocking from worn suspension bushings
• Uneven tire wear caused by degraded bushing support
• Imprecise steering feel from worn rubber isolation points
• Suspension movement caused by cracked or hardened original bushings

Installation Notes and Tips

Fits 1982-1990 Ford Escort, front lower outer; 1984-1994 Ford Tempo, front lower outer; 1981-1987 Mercury Lynx, front lower outer; 1984-1994 Mercury Topaz, front lower outer; 1982-1983 Mercury LN7, front lower outer; 1991-1992 Saturn SC, front lower outer; 1993-2002 Saturn SC1, front lower outer; 1993-2002 Saturn SC2, front lower outer; 1991-2002 Saturn SL, front lower outer; 1991-2002 Saturn SL1, front lower outer; 1991-2002 Saturn SL2, front lower outer; 1993-1999 Saturn SW1, front lower outer; 1993-2001 Saturn SW2, front lower outer.

Because this is a press-fit bushing, proper removal and installation tools are important for service. Verify control arm condition, bushing bore size, and vehicle application before installation. Confirm the front lower outer position matches the original part location on the vehicle.

Quality Assurance

Delphi uses OE-focused dimensional and material analysis to support fitment consistency between original and aftermarket parts. The bushing is also tested for temperature extremes and salt-spray exposure to evaluate durability in demanding service conditions.