HomeSuspension > Suspension, Springs and Related ComponentsMonroe 90018C Coil Spring Set - Rear
Part #: 90018C

Monroe 90018C Coil Spring Set - Rear

Air Spring to Coil Spring Conversion Kit, Rear
23 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Air Spring to Coil Spring Conversion Kit, Rear
Fitment: Chevrolet, GMC, and Isuzu, Trailblazer EXT, Envoy XL, Ascender, and Envoy XUV
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Monroe Air Spring to Coil Spring Conversion Kit Overview

The Monroe Air Spring to Coil Spring Conversion Kit 90018C offers a reliable solution for replacing air springs with coil springs on select Chevrolet, GMC, and Isuzu SUVs. Designed for passive suspension systems, this coil spring set provides a premium-grade alternative to air springs, ensuring consistent ride quality and durability.

  • Compatible with Chevrolet Trailblazer EXT, GMC Envoy XL, Envoy XUV, and Isuzu Ascender
  • Premium grade coil spring set for passive suspension systems
  • Part number 90018C for precise fitment
  • Mounting hardware not included
  • Non-adjustable rebound design

About the Monroe Air Spring to Coil Spring Conversion Kit

The Monroe Air Spring to Coil Spring Conversion Kit is specifically engineered to convert air spring suspensions to coil spring setups. This conversion kit is ideal for vehicles originally equipped with air springs that require a more straightforward, maintenance-friendly suspension component. The kit’s premium grade coil springs are designed to maintain proper ride height and vehicle stability without the complexity of air suspension components.

Product Details and Attributes

This coil spring set is intended for passive suspension systems and does not include adjustable rebound features. The kit does not come with mounting hardware, so additional components may be necessary for installation. The premium grade springs are manufactured to meet or exceed OEM standards, providing a durable and consistent suspension upgrade for the Chevrolet Trailblazer EXT, GMC Envoy XL, Envoy XUV, and Isuzu Ascender models.

Common Applications and Problem Solving

  • Replacing failed or leaking air springs on compatible SUVs
  • Converting air suspension to a simpler coil spring setup
  • Restoring suspension reliability and ride height consistency
  • Reducing maintenance complexity associated with air suspension systems
  • Improving suspension durability in off-road or heavy-duty use

Installation Notes and Tips

Installation of the Monroe 90018C coil spring set requires removal of the existing air springs and may involve additional mounting hardware not included in the kit. It is recommended to consult the vehicle’s service manual for specific suspension disassembly and reassembly procedures. Proper alignment and torque specifications should be followed to ensure safe and effective suspension performance.

Quality Assurance and Warranty

Monroe’s Air Spring to Coil Spring Conversion Kit 90018C is manufactured to premium quality standards, ensuring durability and consistent performance. While mounting hardware is not included, the coil springs meet strict OEM specifications for fit and function. Warranty details should be confirmed with the manufacturer or authorized distributor.

This part fits 23 vehicles. Search below:

YearMakeModelWheel BasePositionNotes
2006ChevroletTrailblazer EXTRearAir Spring to Coil Spring Conversion Kit
2006GMCEnvoy XLRearAir Spring to Coil Spring Conversion Kit
2006GMCEnvoy XLRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2006IsuzuAscender129.0"RearAir Spring to Coil Spring Conversion Kit
2005ChevroletTrailblazer EXTRearAir Spring to Coil Spring Conversion Kit
2005GMCEnvoy XLRearAir Spring to Coil Spring Conversion Kit
2005GMCEnvoy XLRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2005GMCEnvoy XUVRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2005GMCEnvoy XUVRearAir Spring to Coil Spring Conversion Kit
2005IsuzuAscender129.0"RearAir Spring to Coil Spring Conversion Kit
2004ChevroletTrailblazer EXTRearAir Spring to Coil Spring Conversion Kit
2004GMCEnvoy XLRearAir Spring to Coil Spring Conversion Kit
2004GMCEnvoy XLRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2004GMCEnvoy XUVRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2004GMCEnvoy XUVRearAir Spring to Coil Spring Conversion Kit
2004IsuzuAscender129.0"RearAir Spring to Coil Spring Conversion Kit
2003ChevroletTrailblazer EXTRearAir Spring to Coil Spring Conversion Kit
2003GMCEnvoy XLRearAir Spring to Coil Spring Conversion Kit
2003GMCEnvoy XLRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit
2003IsuzuAscender129.0"RearAir Spring to Coil Spring Conversion Kit
2002ChevroletTrailblazer EXTRearAir Spring to Coil Spring Conversion Kit
2002GMCEnvoy XLRearAir Spring to Coil Spring Conversion Kit
2002GMCEnvoy XLRearConversion Kit Converts ONLY The Rear Air Suspension To A Coil Spring Suspension. Requires One Kit Per Vehicle; Air Spring to Coil Spring Conversion Kit

* 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:

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