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OE Quality
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WestarPart #: ST-3978
Westar ST-3978 Suspension Coil Spring Seat - Front Upper
⚙️ 53 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Volvo, 850, C70, S60, S70, S80, V70, and XC90
🔄Easy Returns — Return within 60 days for a full refund
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Westar ST-3978 Suspension Coil Spring Seat - Front Upper
| Brand | Westar |
| Part Number | ST-3978 |
| Bullet 1 | Provides a pivot point for the suspension to rotate on, to allow |
| Bullet 2 | Provides a locking mechanism to lock the strut and body together |
| Bullet 3 | Provides a noise dampening system to prevent noise and vibrations |
This part fits 53 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2013 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2012 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2011 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2010 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2009 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2008 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2007 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2007 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2007 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2006 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2006 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2006 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2006 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2006 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2005 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2005 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2005 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2005 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2004 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2004 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2004 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2004 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2004 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2003 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2003 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2003 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2003 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2003 | Volvo | XC90 | Front Upper | Suspension Coil Spring Seat Only |
| 2002 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2002 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2002 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2002 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2001 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2001 | Volvo | S60 | Front Upper | Suspension Coil Spring Seat Only |
| 2001 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2001 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 2000 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 2000 | Volvo | S70 | Front Upper | UPPER SPRING SEAT exc Auto Rear Leveling |
| 2000 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 2000 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 1999 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 1999 | Volvo | S70 | Front Upper | UPPER SPRING SEAT exc Auto Rear Leveling |
| 1999 | Volvo | S80 | Front Upper | exc. NIVOMAT Rear Suspension |
| 1999 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 1998 | Volvo | C70 | Front Upper | Suspension Coil Spring Seat Only |
| 1998 | Volvo | S70 | Front Upper | UPPER SPRING SEAT exc Auto Rear Leveling |
| 1998 | Volvo | V70 | Front Upper | w/o Electronic Suspension |
| 1997 | Volvo | 850 | Front Upper | UPPER SPRING SEAT, Exc Nivomat Rear Suspension |
| 1996 | Volvo | 850 | Front Upper | UPPER SPRING SEAT, Exc Nivomat Rear Suspension |
| 1995 | Volvo | 850 | Front Upper | UPPER SPRING SEAT, Exc Nivomat Rear Suspension |
| 1994 | Volvo | 850 | Front Upper | UPPER SPRING SEAT, Exc Nivomat Rear Suspension |
| 1993 | Volvo | 850 | Front Upper | UPPER SPRING SEAT, Exc Nivomat Rear Suspension |
* 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:
703978
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.