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Qa1

QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Aluminum

SKU: QAPMS431-09650

Coilover Kits

QAP Coil-Overs - Pro Coil...

Qa1

QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Aluminum

SKU: QAPMS431-09650

Coilover Kits

QAP Coil-Overs - Pro Coil...

A$2,072.55
LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

QA1 Pro Coil Systems for 2003-2011 Crown Victorias are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match, and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. QA1 Item number MS431-09650

Product Overview

QA1 Pro Coil Systems for 2003-2011 Crown Victorias are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match, and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling.


Features and Benefits

  • Lightweight Billet Aluminum Coil-Over Shocks
  • Made in the USA
  • Easy, bolt-In Installation
  • Ride Height Adjustable
  • 100% Dyno Tested and Serialized
  • Serviceable and Rebuildable by QA1 Authorized Service Centers

Product Details

Active or Passive Suspension:Passive
Adjustable Compression:Yes
Adjustable Rebound:Yes
Adjustable Ride Height:Yes
Assembled:No
Brand:QA1
Description:QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 650lbs/in - Aluminum
Grade Type:Performance
Internal Construction Type:Dual Tube
Manufacturer Part Number:MS431-09650
Part Number:qapMS431-09650
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Remote Reservoir:No
Spring Color:Black
Spring Material:High Tensile Chrome Silicon
Title:QA1 Shock Absorber and Coil Spring Assembly MS431-09650
UPC:806990159922

Part Type

Coilover Set

Data: v4.2 - Upd: 2026-10-10 18:30:49

Features

  • 100% Dyno Tested and Serialized
  • Easy, bolt-In Installation
  • Lightweight Billet Aluminum Coil-Over Shocks
  • Made in the USA
  • QA1 Item number MS431-09650
  • Ride Height Adjustable
  • Serviceable and Rebuildable by QA1 Authorized Service Centers

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
MS431-09650
Product Attributes - Part Type
Coilover Kits
Product Attributes - Product Line
QA1 Pro Coilover Systems
Product Attributes - UPC
806990159922
Product Attributes - Coilover Kit Position
Front
Product Attributes - Adjustable Valving
Yes
Product Attributes - Number of Valving Selections
18
Product Attributes - Shocks Included
No
Product Attributes - Internal Design
Twin-tube
Product Attributes - Coilover Springs Included
Yes
Product Attributes - Spring Rate (lbs./in.)
650 lbs./in.
Product Attributes - Gas Charged
No
Product Attributes - Upper Mount
Bracket
Product Attributes - Lower Mount
Eyelet
Product Attributes - Shock Body Material
Aluminum
Product Attributes - Shock Body Finish
Silver
Product Attributes - Spring Finish
Black
Product Attributes - Crossmember Included
No
Product Attributes - Adjustable Mounting Bracket Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - Welding Required
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Coilover shocks are single adjustable MS431 shocks. Springs are 9 in. 9HT650 springs.

Reference Information

Brand Name/s Qa1
StreetFX SKU qapMS431-09650
SFX Item ID 4094933
Supplier Item Code 4094933
Manufacturer SKU MS431-09650
Manufacturer UPC 806990159922
Alternative References qa1, QA1-MS431-09650, 9in, 650lbs/in

Compatibility

Application Data
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelBASE
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelBASE
    Beginning Year2003
    Ending Year2008
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelBASE
    Beginning Year2006
    Ending Year2011
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelFLEET
    Beginning Year2006
    Ending Year2009
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelFLEET
    Beginning Year2006
    Ending Year2009
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLWB
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLWB
    Beginning Year2003
    Ending Year2009
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLWB
    Beginning Year2006
    Ending Year2009
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX
    Beginning Year2003
    Ending Year2010
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX
    Beginning Year2006
    Ending Year2011
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX SPORT
    Beginning Year2004
    Ending Year2004
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelLX SPORT
    Beginning Year2004
    Ending Year2006
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelPOLICE INTERCEPTOR
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelPOLICE INTERCEPTOR
    Beginning Year2003
    Ending Year2011
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelPOLICE INTERCEPTOR
    Beginning Year2008
    Ending Year2011
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelS
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelS
    Beginning Year2003
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelSPECIAL EDITION
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN Code9
  • MakeFORD
    ModelCROWN VICTORIA
    SubmodelSPECIAL EDITION
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeW

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