SKP SK521887 Suspension Control Arm - Rear Left Upper, Rear Right Upper or Rear Upper

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SKP SK521887 Suspension Control Arm - Rear Left Upper, Rear Right Upper or Rear Upper

Brand	SKP SK521887
Position	Rear Left Upper, Rear Right Upper, and Rear Upper
Fits	Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab · 102 vehicles

Direct replacement. Built for rear suspension applications with a precise fit.

Steel construction. High-strength material adds structural support under load.

Corrosion-resistant finish. Protective coating helps resist road exposure and wear.

Cross-references 521887, 15069838 and WC111887 for the same application. See all 3.

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Not what you need? See all Suspension Control Arm options

Suspension Control Arm Overview

The SKP Suspension Control Arm restores rear suspension geometry and helps bring back stable handling on a range of GM and Saab applications. It is built for direct replacement use on vehicles with automatic leveling or rear upper suspension configurations, including Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x models.

Key Features

High-strength steel construction for structural support.
Corrosion-resistant coating for added protection against road exposure.
Engineered for proper wheel alignment and consistent suspension movement.
Direct-fit replacement for rear upper suspension applications.
Fits Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and related platforms.

Detailed Description

SKP part number SK521887 is a rear suspension control arm designed to replace worn or damaged original equipment components that can affect alignment and steering response. On Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Oldsmobile Bravada, Isuzu Ascender, Saab 9-7x, and Chevrolet SSR applications, this control arm helps restore the suspension’s original geometry so the vehicle tracks more predictably and tire wear stays more even. The steel construction and protective finish add durability for daily road use.

This part cross-references Monroe Shocks & Struts (e.g., 521887, WC111887) for the same application.

What It Helps Address

Uneven tire wear caused by worn rear suspension components.
Loose or imprecise steering feel linked to alignment changes.
Noisy or unstable rear suspension operation.
Loss of proper wheel position after control arm wear.
Handling issues on vehicles with rear upper suspension wear.

Installation Notes and Tips

Confirm the exact rear position and leveling-system notes before ordering, since fitment varies by model and configuration. Fits 2002-2009 Chevrolet Trailblazer, rear left upper with auto air level control; Fits 2002-2009 Chevrolet Trailblazer, rear right upper with auto air level control; Fits 2002-2006 Chevrolet Trailblazer, rear left upper without auto air level control; Fits 2002-2006 Chevrolet Trailblazer, rear right upper without auto air level control; Fits 2002-2006 Chevrolet Trailblazer EXT, rear upper with automatic leveling system; Fits 2002-2009 GMC Envoy, rear left upper with auto air level control; Fits 2002-2009 GMC Envoy, rear right upper with auto air level control; Fits 2002-2006 GMC Envoy XL, rear upper with automatic leveling system; Fits 2004-2007 Buick Rainier, rear left upper with auto air level control; Fits 2004-2007 Buick Rainier, rear right upper with auto air level control; Fits 2002-2004 Oldsmobile Bravada, rear left upper with auto air level control; Fits 2002-2004 Oldsmobile Bravada, rear right upper with auto air level control; Fits 2003-2006 Chevrolet SSR, rear upper with RPO code G67 (auto air level control); Fits 2004-2008 Isuzu Ascender, rear upper; Fits 2004-2005 GMC Envoy XUV, rear upper; Fits 2005-2009 Saab 9-7x, rear upper.

Quality Assurance

SKP builds this control arm with high-strength steel and a corrosion-resistant coating to support long-term service in demanding road conditions. Part number SK521887 is made as a direct replacement for the listed applications.

This part fits 102 vehicles

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

Year	Make	Model	Submodel	Liters	Cylinders	Position	Notes
2009	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2009	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2009	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2009	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2009	Saab	9-7x	—	—	—	Rear Upper	—
2008	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2008	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2008	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2008	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2008	Isuzu	Ascender	—	—	—	Rear Upper	—
2008	Saab	9-7x	—	—	—	Rear Upper	—
2007	Buick	Rainier	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2007	Buick	Rainier	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2007	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2007	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2007	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2007	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2007	Isuzu	Ascender	—	—	—	Rear Upper	—
2007	Saab	9-7x	—	—	—	Rear Upper	—
2006	Buick	Rainier	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2006	Buick	Rainier	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2006	Chevrolet	SSR	—	—	—	Rear Upper	w/ RPO Code G67 (Auto Air Level Control)
2006	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2006	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2006	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer	B	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer	A	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer	B	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer	A	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2006	Chevrolet	Trailblazer EXT	—	—	—	Rear Upper	with Automatic Leveling System
2006	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2006	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2006	GMC	Envoy XL	—	—	—	Rear Upper	with Automatic Leveling System
2006	Isuzu	Ascender	—	—	—	Rear Upper	—
2006	Saab	9-7x	—	—	—	Rear Upper	—
2005	Buick	Rainier	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2005	Buick	Rainier	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2005	Chevrolet	SSR	—	—	—	Rear Upper	w/ RPO Code G67 (Auto Air Level Control)
2005	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2005	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2005	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	B	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	A	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	R	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	Q	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	B	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	A	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	R	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer	Q	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2005	Chevrolet	Trailblazer EXT	—	—	—	Rear Upper	with Automatic Leveling System
2005	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2005	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2005	GMC	Envoy XL	—	—	—	Rear Upper	with Automatic Leveling System
2005	GMC	Envoy XUV	—	—	—	Rear Upper	—
2005	Isuzu	Ascender	—	—	—	Rear Upper	—
2005	Saab	9-7x	—	—	—	Rear Upper	—
2004	Buick	Rainier	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2004	Buick	Rainier	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2004	Chevrolet	SSR	—	—	—	Rear Upper	w/ RPO Code G67 (Auto Air Level Control)
2004	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2004	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2004	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer	B	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer	A	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer	B	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer	A	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2004	Chevrolet	Trailblazer EXT	—	—	—	Rear Upper	with Automatic Leveling System
2004	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2004	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2004	GMC	Envoy XL	—	—	—	Rear Upper	with Automatic Leveling System
2004	GMC	Envoy XUV	—	—	—	Rear Upper	—
2004	Isuzu	Ascender	—	—	—	Rear Upper	—
2004	Oldsmobile	Bravada	—	—	—	Rear Left Upper	w/Auto Air Level Control
2004	Oldsmobile	Bravada	—	—	—	Rear Right Upper	w/Auto Air Level Control
2003	Chevrolet	SSR	—	—	—	Rear Upper	w/ RPO Code G67 (Auto Air Level Control)
2003	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2003	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2003	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2003	Chevrolet	Trailblazer	Base	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2003	Chevrolet	Trailblazer EXT	—	—	—	Rear Upper	with Automatic Leveling System
2003	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2003	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2003	GMC	Envoy XL	—	—	—	Rear Upper	with Automatic Leveling System
2003	Oldsmobile	Bravada	—	—	—	Rear Left Upper	w/Auto Air Level Control
2003	Oldsmobile	Bravada	—	—	—	Rear Right Upper	w/Auto Air Level Control
2002	Chevrolet	Trailblazer	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2002	Chevrolet	Trailblazer	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2002	Chevrolet	Trailblazer	LT	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer	LTZ	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer	LS	4.2L	L6	Rear Left Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer	LT	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer	LTZ	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer	LS	4.2L	L6	Rear Right Upper	w/o Auto Air Level Control
2002	Chevrolet	Trailblazer EXT	—	—	—	Rear Upper	with Automatic Leveling System
2002	GMC	Envoy	—	4.2L	L6	Rear Left Upper	w/Auto Air Level Control
2002	GMC	Envoy	—	4.2L	L6	Rear Right Upper	w/Auto Air Level Control
2002	GMC	Envoy XL	—	—	—	Rear Upper	with Automatic Leveling System
2002	Oldsmobile	Bravada	—	—	—	Rear Left Upper	w/Auto Air Level Control
2002	Oldsmobile	Bravada	—	—	—	Rear Right Upper	w/Auto Air Level Control
No rows match your filter.

Directly replaces or cross-references 3 part numbers

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

52188715069838WC111887