KYB

Strut Plus Shocks & Spring Assembly

SR4089
$239.99 $262.39
Discount in Cart

In Stock Estimated Delivery in 3-6 Business Days
KYB

Strut Plus Shocks & Spring Assembly

SR4089
$239.99 $262.39
Discount in Cart

In Stock Estimated Delivery in 3-6 Business Days
Authorized dealer
Free shipping on orders above $175 within the lower 48 United States
Brand new parts with warranty coverage
Free 30-day return and exchange on qualifying orders
Got Questions?
Our experts are here to help!
Part Numbers & Details
Package Contains 1 Strut & Spring Assembly
One Strut & Spring coilover assembly.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Fully Assembled Units
Easy Install - No coil spring compressor required
Restore Ride Control
Improve control and comfort dynamics
New Strut Mounts
Assembled with new strut mounts on top
Specifications
Part NumberLift/LoweredPositionItemQuantity
SR4089FactoryFrontStrut & Spring1
Product Details

The KYB Strut-Plus is built exclusively with OE components or better, and calibrated to exact specifications of your vehicle. The Strut-Plus assembly is built with an Excel-G Gas Strut, and where applicatable, includes a new coil spring, mount, insulator, bearing plate, and attaching parts. The Strut-Plus comes pre-assembled, saving you time and money on installation. OE quality components optimize steering smoothness, quiet operation, and help to maintain alignment. Polyurethane boot and travel-limiting bumper protect the chrome strut shaft from debris (boot inclusion depends on vehicle).

Compatibility List
YearMakeModelDrivePosition
2009BuickAllureFront
2008BuickAllureFront
2007BuickAllureFront
2006BuickAllureFront
2005BuickAllureFront
2009BuickLaCrosseFront
2008BuickLaCrosseFront
2007BuickLaCrosseFront
2006BuickLaCrosseFront
2005BuickLaCrosseFront
2013ChevroletImpalaFront
2012ChevroletImpalaFront
2011ChevroletImpalaFront
2010ChevroletImpalaFront
2009ChevroletImpalaFront
2008ChevroletImpalaFront
2007ChevroletImpalaFront
2006ChevroletImpalaFront
2016ChevroletImpala LimitedFront
2015ChevroletImpala LimitedFront
2014ChevroletImpala LimitedFront
2007ChevroletMonte CarloFront
2006ChevroletMonte CarloFront
2005ChevroletMonte CarloFront
2004ChevroletMonte CarloFront

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

Product Details

Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!

Part Numbers & Details

View full product specifications

Close specs
Part Numbers & Details
Package Contains 1 Strut & Spring Assembly
One Strut & Spring coilover assembly.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Fully Assembled Units
Easy Install - No coil spring compressor required
Restore Ride Control
Improve control and comfort dynamics
New Strut Mounts
Assembled with new strut mounts on top
Specifications
Part NumberLift/LoweredPositionItemQuantity
SR4089FactoryFrontStrut & Spring1
Product Details

The KYB Strut-Plus is built exclusively with OE components or better, and calibrated to exact specifications of your vehicle. The Strut-Plus assembly is built with an Excel-G Gas Strut, and where applicatable, includes a new coil spring, mount, insulator, bearing plate, and attaching parts. The Strut-Plus comes pre-assembled, saving you time and money on installation. OE quality components optimize steering smoothness, quiet operation, and help to maintain alignment. Polyurethane boot and travel-limiting bumper protect the chrome strut shaft from debris (boot inclusion depends on vehicle).

Compatibility List
YearMakeModelDrivePosition
2009BuickAllureFront
2008BuickAllureFront
2007BuickAllureFront
2006BuickAllureFront
2005BuickAllureFront
2009BuickLaCrosseFront
2008BuickLaCrosseFront
2007BuickLaCrosseFront
2006BuickLaCrosseFront
2005BuickLaCrosseFront
2013ChevroletImpalaFront
2012ChevroletImpalaFront
2011ChevroletImpalaFront
2010ChevroletImpalaFront
2009ChevroletImpalaFront
2008ChevroletImpalaFront
2007ChevroletImpalaFront
2006ChevroletImpalaFront
2016ChevroletImpala LimitedFront
2015ChevroletImpala LimitedFront
2014ChevroletImpala LimitedFront
2007ChevroletMonte CarloFront
2006ChevroletMonte CarloFront
2005ChevroletMonte CarloFront
2004ChevroletMonte CarloFront
Warranty

View warranty coverage

Close specs

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping & Returns

Free shipping within the lower 48 United States

Close specs

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

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