Place of Origin:
China
Brand Name:
Womala
Certification:
.
Model Number:
C2Z15891
Product Overview
The Spring Isolator C2Z15891 (also known as a spring seat or spring insulator) is an OE-grade suspension component engineered for select for Jaguar vehicles. This rubber/plastic isolator sits between the coil spring and the upper shock absorber mount, isolating road vibration and noise while providing the correct seating surface for the spring to maintain suspension geometry and ride height.XR812984 is the superseded part number.
Key Features
Spring isolation and seating – isolates vibration and noise between the spring and mount
OE-grade quality – available as Genuine Jaguar, Eurospare, and Marmon Ride Control alternatives
Direct-fit replacement – matches factory spring seat dimensions
Front or rear upper position – used at the front or rear upper spring seat depending on model and configuration
OE Cross-Reference
| Primary | Superseded | Additional References |
|---|---|---|
| C2Z15891 | XR812984 | XR87903, SM5359, K90410, 4713455 |
💡 Supersession Note: XR812984 has been superseded by C2Z15891. Both part numbers refer to the same spring isolator.
Technical Specifications
| Parameter | Detail |
|---|---|
| Part Type | Coil Spring Isolator / Spring Seat |
| Position | Front / Rear Upper |
| Inner Diameter | 3.23" (82 mm) |
| Outer Diameter | 5.21" (132 mm) |
| Material | Polyurethane Foam / Plastic |
| Condition | Brand New, OE-Grade |
Vehicle Fitment
| Make | Model | Chassis | Years | Position |
|---|---|---|---|---|
| for Jaguar | S-TYPE | X200 | 1999 – 2008 | Front / Rear Upper |
| for Jaguar | XF | X250 | 2009 – 2015 | Front / Rear Upper |
| for Jaguar | XFR | X250 | 2010 – 2015 | Front / Rear Upper |
| for Jaguar | XFR-S | X250 | 2013 – 2015 | Front / Rear Upper |
⚠️ Important: This isolator is used at the front or rear upper spring seat depending on model and configuration (AWD or RWD). 2 units are typically required per vehicle (one per side). Confirm your vehicle's specific configuration before ordering.
Signs of Failure
Knocking noise over bumps – metal-to-metal contact as the spring seat hardens and collapses
Incorrect ride height – sagging or uneven stance caused by a collapsed spring seat
Deteriorated handling – loss of vibration isolation transferring road shock directly
Visible wear – hardened, cracked rubber or crumbling plastic
💡 As spring isolators age and harden, they lose their ability to isolate vibration and noise, leading to knocking over bumps and reduced ride comfort.
Critical – Verify Your VIN Before Ordering
Spring isolators are model-, chassis-, and drivetrain-specific. Provide your VIN – our team confirms exact compatibility before dispatch. We cannot accept returns for misordered parts without VIN verification.
💡 Installation Tip: Professional installation recommended. Replacing the isolator requires removing the shock absorber assembly and using a spring compressor. Inspect the upper shock mount and spring for wear at the same time.
Why Choose Us
| Advantage | Detail |
|---|---|
| Inventory | 10,000+ SKU in stock |
| Quality | OE-grade, fully tested |
| Warranty | 18-month against manufacturing defects |
| Shipping | Global via DHL / UPS / FedEx |
| Flexibility | Sample orders welcome, low MOQ |
Contact us for bulk orders or VIN‑checked quotes.
Specifications subject to change; images for reference only.Aftermarket replacement – not affiliated with Jaguar Land Rover.
![]()
![]()
Frequently Asked Questions
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
![]()
![]()
Send your inquiry directly to us