KYB

Spring Seat Insulator

SM5358
$49.99

In Stock Estimated Delivery in 3-6 Business Days
KYB

Spring Seat Insulator

SM5358
$49.99

In Stock Estimated Delivery in 3-6 Business Days
Authorized dealer
Free shipping on orders above $250 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!
Overview & Specs
Part Numbers Included:
  • SM5358
Compatibility List
YearMakeModelDrivePosition
2003JaguarVanden PlasRear Upper
2002JaguarVanden PlasRear Upper
2001JaguarVanden PlasRear Upper
2000JaguarVanden PlasRear Upper
1999JaguarVanden PlasRear Upper
1998JaguarVanden PlasRear Upper
1997JaguarVanden PlasRear Upper
1996JaguarVanden PlasRear Upper
1995JaguarVanden PlasRear Upper
1996JaguarXJ12Rear Upper
1995JaguarXJ12Rear Upper
1997JaguarXJ6Rear Upper
1996JaguarXJ6Rear Upper
1995JaguarXJ6Rear Upper
2003JaguarXJ8Rear Upper
2002JaguarXJ8Rear Upper
2001JaguarXJ8Rear Upper
2000JaguarXJ8Rear Upper
1999JaguarXJ8Rear Upper
1998JaguarXJ8Rear Upper
2003JaguarXJRRear Upper
2002JaguarXJRRear Upper
2001JaguarXJRRear Upper
2000JaguarXJRRear Upper
1999JaguarXJRRear Upper
1998JaguarXJRRear Upper
1997JaguarXJRRear Upper
1996JaguarXJRRear Upper
1995JaguarXJRRear Upper
2004JaguarXK8Rear Upper
2003JaguarXK8Rear Upper
2002JaguarXK8Rear Upper
2001JaguarXK8Rear Upper
2000JaguarXK8Rear Upper
1999JaguarXK8Rear Upper
1998JaguarXK8Rear Upper
1997JaguarXK8Rear Upper
2006JaguarXKRRear Upper
2005JaguarXKRRear Upper
2004JaguarXKRRear Upper
2003JaguarXKRRear Upper
2002JaguarXKRRear Upper
2001JaguarXKRRear Upper
2000JaguarXKRRear Upper

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
Overview & Specs
Part Numbers Included:
  • SM5358
Compatibility List
YearMakeModelDrivePosition
2003JaguarVanden PlasRear Upper
2002JaguarVanden PlasRear Upper
2001JaguarVanden PlasRear Upper
2000JaguarVanden PlasRear Upper
1999JaguarVanden PlasRear Upper
1998JaguarVanden PlasRear Upper
1997JaguarVanden PlasRear Upper
1996JaguarVanden PlasRear Upper
1995JaguarVanden PlasRear Upper
1996JaguarXJ12Rear Upper
1995JaguarXJ12Rear Upper
1997JaguarXJ6Rear Upper
1996JaguarXJ6Rear Upper
1995JaguarXJ6Rear Upper
2003JaguarXJ8Rear Upper
2002JaguarXJ8Rear Upper
2001JaguarXJ8Rear Upper
2000JaguarXJ8Rear Upper
1999JaguarXJ8Rear Upper
1998JaguarXJ8Rear Upper
2003JaguarXJRRear Upper
2002JaguarXJRRear Upper
2001JaguarXJRRear Upper
2000JaguarXJRRear Upper
1999JaguarXJRRear Upper
1998JaguarXJRRear Upper
1997JaguarXJRRear Upper
1996JaguarXJRRear Upper
1995JaguarXJRRear Upper
2004JaguarXK8Rear Upper
2003JaguarXK8Rear Upper
2002JaguarXK8Rear Upper
2001JaguarXK8Rear Upper
2000JaguarXK8Rear Upper
1999JaguarXK8Rear Upper
1998JaguarXK8Rear Upper
1997JaguarXK8Rear Upper
2006JaguarXKRRear Upper
2005JaguarXKRRear Upper
2004JaguarXKRRear Upper
2003JaguarXKRRear Upper
2002JaguarXKRRear Upper
2001JaguarXKRRear Upper
2000JaguarXKRRear Upper
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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