Do I need to replace struts in pairs?

Yes, struts should always be replaced in pairs (both front or both rear) to maintain balanced handling and ride quality. Uneven strut wear causes pulling, uneven tire wear, and compromised safety.

Is wheel alignment required after strut replacement?

Absolutely. Strut replacement affects suspension geometry. Without alignment, you risk rapid tire wear and poor handling. Most shops include alignment with strut installation.

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We can’t guarantee fitment or accept fitment returns without a vehicle selected.

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Coil Spring Insulator

Name: Coil Spring Insulator
Brand: GM Genuine Parts
SKU: 13257840
Availability: InStock
Rating: 4.9 (12847 reviews)

Authorized Dealer

Coil Spring Insulator

BrandGM Genuine PartsLearn More

Qty/Vehicle1

ConditionNew

Includes: (1) Suspension Strut Bellows, Hardware

$000

•In Stock•Fast Shipping

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Product Specifications

Features & Benefits

•Direct OE fit - no modifications needed
•Meets or exceeds manufacturer specs
•24-month warranty included
•Fast Shipping — ships same day before 3 PM ET

BrandGM Genuine Parts

Part Number13257840

Part TypeSuspension Strut Bellows

ConditionNew

Inside Diameter (In)2.723 in

Inside Diameter (Mm)69.17 mm

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Frequently Asked Questions

We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.

What vehicles does this Suspension Strut Bellows fit?

This GM Genuine Parts Suspension Strut Bellows (Part #13257840) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.

Is this an OEM or aftermarket part?

This is a premium aftermarket Suspension Strut Bellows by GM Genuine Parts, designed to meet or exceed OEM specifications with strict quality control standards.

What warranty is included?

This GM Genuine Parts Suspension Strut Bellows is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.

How long does shipping take?

Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.

Can I return this if it does not fit?

30-day money-back guarantee. Return unused parts in original packaging for full refund.

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Product Specifications

Brand

GM Genuine Parts

Part Type

Suspension Strut Bellows

Inside Diameter (Mm)

69.17 mm

Material

Rubber

Part Number

13257840

Inside Diameter (In)

2.723 in

Length

8.66 IN

Outside Diameter (In)

2.85 in

Inside Diameter (In)2.723 in

Inside Diameter (Mm)69.17 mm

Length8.66 IN

MaterialRubber

Outside Diameter (In)2.85 in

Outside Diameter (Mm)72.40 mm

Adhesive BackingNo

ConfigurationOne Piece

Cutting RequiredNo

Features Benefits - Bullet 1Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Features Benefits - Bullet 2GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors

Features Benefits - Bullet 3GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Features Benefits - Bullet 4GM regularly updates production and service part designs to integrate new materials and technologies

Height (In)5.38 in

Product DescriptionGM Genuine Parts Suspension Strut Bellows are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the prod

Programming RequiredNo

ShapeStraight

Universal Or Specific FitSpecific

Weight (Lb).26 lb

Width5.5 IN

Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more

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Coil Spring Insulator

Authorized Dealer

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Part #:13257840

Call 888-477-2530 for Price

OE REPLACEMENT

Coil Spring Insulator

Part #:13257840

Suspension Strut Bellows

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Quantity:

In Stock10 or more available

Fast delivery between Mon, Jun 22 to Mon, Jun 22

Ships To:

Call 888-477-2530 for Price

Key Features

OEM-Equivalent QualityMeets/exceeds factory specs

American BusinessMaryland since 1986

24-Month WarrantyLimited coverage on every part

Fast Same Day ShippingWe ship all orders the same business day before cutoff

Product Specs

BrandGM Genuine Parts

Part Number13257840

Part TypeSuspension Strut Bellows

ConditionNew

Inside Diameter (In)2.723 in

Inside Diameter (Mm)69.17 mm

Length8.66 IN

MaterialRubber

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Questions & Answers

Have a Question?

Ask Marvin, our Car Expert

Things to Know

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts

Check if this fits your car first

Coil Spring Insulator

Coil Spring Insulator

Product Specifications

Compatibility

Vehicle Compatibility

Frequently Asked Questions

Compatibility

Vehicle Compatibility

Product Specifications

Coil Spring Insulator

Coil Spring Insulator

Key Features

Product Specs

Compatibility

Vehicle Compatibility

Questions & Answers

Things to Know

24 Month Warranty

30 Day Returns

Fast Same Day Shipping

About This Suspension Strut Bellows

Key Features

Signs This Part Needs Replacement

GM Genuine Parts

Installation Guide

Tools Needed

Frequently Asked Questions