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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Control Arm Parts & Accessories

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Density Line Control Arm Kit - Non-Adjustable

ES#4745528 - 034-401-1074 - Density Line Control Arm Kit - Non-Adjustable - Drop in upgrade for upper and lower control arms - 034Motorsport - Audi

Drop in upgrade for upper and lower control arms

Brand:
034Motorsport - Corporate Logo
ES#:
4745528
Mfg#:
034-401-1074
In Stock
ON SALE! SAVE 10%
$1026.00

This product was last offered at the strikethrough price on
08-17-2026

$923.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Upper Control Arm Kits - Non-Adjustable

ES#4745521 - 034-401-1072 - Density Line Upper Control Arm Kits - Non-Adjustable - Drop in upgrade for all four factory front upper control arms - 034Motorsport - Audi

Drop in upgrade for all four factory front upper control arms

Brand:
034Motorsport - Corporate Logo
ES#:
4745521
Mfg#:
034-401-1072
In Stock
ON SALE! SAVE 10%
$343.00

This product was last offered at the strikethrough price on
08-17-2026

$308.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Lower Control Arms

ES#4505755 - 034-401-1069 - Density Line Lower Control Arms - Replace your aging factory fluid-filled bushings with Density Line 65 durometer bushings in this comprehensive control arm kit - 034Motorsport - Audi

Replace your aging factory fluid-filled bushings with Density Line 65 durometer bushings in this comprehensive control arm kit

Brand:
034Motorsport - Corporate Logo
ES#:
4505755
Mfg#:
034-401-1069
In Stock
ON SALE! SAVE 10%
$657.00

This product was last offered at the strikethrough price on
08-17-2026

$591.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Control Arm Kit Upper Adjustable - Camber Correcting

ES#4630175 - 034-401-1071 - Density Line Control Arm Kit Upper Adjustable - Camber Correcting - Add positive camber after lowering to reach factory alignment specifications and reduce tire wear. - 034Motorsport - Audi

Add positive camber after lowering to reach factory alignment specifications and reduce tire wear.

Brand:
034Motorsport - Corporate Logo
ES#:
4630175
Mfg#:
034-401-1071
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$1226.00

This product was last offered at the strikethrough price on
08-17-2026

$1103.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Upper Control Arm Kit

ES#4164442 - 81383 - Adjustable Front Upper Control Arm Kit - Adjust front camber and caster 1.5 on the Audi B9 platform with these forged aluminum adjustable control arms from SPC! - SPC - Audi

Adjust front camber and caster ±1.5° on the Audi B9 platform with these forged aluminum adjustable control arms from SPC!

Brand:
SPC - Corporate Logo
ES#:
4164442
Mfg#:
81383
In Stock at Vendor
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner

ES#4389692 - 006418la01KT - Audi Thrust Arm Monoball Upgrade Kit - Front Lower, Inner - Eliminate deflection caused by stock rubber bushings! - ECS - Audi

Eliminate deflection caused by stock rubber bushings! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4389692
Mfg#:
006418LA01KT
In Stock
ON SALE! SAVE 15%
$438.99

This product was last offered at the strikethrough price on
06-13-2026

$373.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & ALZOR 19" Style 628 Wheels - Set Of Four

ES#4759732 - 000745LA01EB3KT - B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & ALZOR 19" Style 628 Wheels - Set Of Four - Enthusiast Bundles - Audi

Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4759732
Mfg#:
000745LA01EB3KT
In Stock
ON SALE! SAVE 33%
$2382.98

This product was last offered at the strikethrough price on
05-05-2026

$1599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Control Arm Kit Upper Adjustable - Track Spec

ES#4630174 - 034-401-1070 - Density Line Control Arm Kit Upper Adjustable - Track Spec - Gain additional negative camber for increased cornering grip and improved handling performance. - 034Motorsport - Audi

Gain additional negative camber for increased cornering grip and improved handling performance.

Brand:
034Motorsport - Corporate Logo
ES#:
4630174
Mfg#:
034-401-1070
Ships in 2 Business Days
ON SALE! SAVE 10%
$1226.00

This product was last offered at the strikethrough price on
08-17-2026

$1103.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Suspension Control Arm Refresh Kit

A complete Kit to give you everything you need to replace a your rear control arms!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4803796
Mfg#:
8W0505311HKT
Ships in 7 Business Days
$3243.99

This product was last offered at the strikethrough price on
07-05-2026

$3239.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Density Line Upper Control Arm Kit - Camber Correcting

ES#3546573 - 034-401-1061 - Density Line Upper Control Arm Kit - Camber Correcting - Adds positive camber to achieve factory alignment specs after lowering, and reduce tire wear! - 034Motorsport - Audi

Adds positive camber to achieve factory alignment specs after lowering, and reduce tire wear!

Brand:
034Motorsport - Corporate Logo
ES#:
3546573
Mfg#:
034-401-1061
Ships in 2 Business Days
ON SALE! SAVE 10%
$663.00

This product was last offered at the strikethrough price on
08-17-2026

$596.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Adjustable Rear Toe Links

ES#4465518 - 034-407-1006 - Density Line Adjustable Rear Toe Links - Direct, drop-in upgrade for the stamped steel factory rear toe links - 034Motorsport - Audi

Direct, drop-in upgrade for the stamped steel factory rear toe links

Brand:
034Motorsport - Corporate Logo
ES#:
4465518
Mfg#:
034-407-1006
Ships in 2 Business Days
ON SALE! SAVE 10%
$360.00

This product was last offered at the strikethrough price on
08-17-2026

$324.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Billet Aluminum Front Strut Brace and Thrust Arm Monoball Upgrade Kit

ES#4751642 - 000745LA01EBKT - B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Billet Aluminum Front Strut Brace and Thrust Arm Monoball Upgrade Kit - Features 32 way adjustable damping, variable length and zinc-coated shock bodies and provides additional support to the strut towers for flex reduction to enhance your driving experience while eliminate deflection caused by stock rubber bushings! - Enthusiast Bundles - Audi

Features 32 way adjustable damping, variable length and zinc-coated shock bodies and provides additional support to the strut towers for flex reduction to enhance your driving experience while eliminate deflection caused by stock rubber bushings! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
For the curved control arm

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751642
Mfg#:
000745LA01EBKT
In Stock
ON SALE! SAVE 29%
$1968.97

This product was last offered at the strikethrough price on
05-05-2026

$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Upper Control Arm Kit - Track Spec

ES#3546574 - 034-401-1062 - Density Line Upper Control Arm Kit - Track Spec - Gain negative camber for increased cornering grip, better turn-in, and improved handling! - 034Motorsport - Audi

Gain negative camber for increased cornering grip, better turn-in, and improved handling!

Brand:
034Motorsport - Corporate Logo
ES#:
3546574
Mfg#:
034-401-1062
Ships in 2 Business Days
ON SALE! SAVE 10%
$680.00

This product was last offered at the strikethrough price on
08-17-2026

$612.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt - Priced Each

ES#472621 - WHT001949 - Torx Bolt - Priced Each - Install new hardware with your new parts. M12x1.5x92 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M12x1.5x92 Secures the straight lower front control arm to the subframe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472621
Mfg#:
WHT001949
In Stock
24% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$19.47

This product was last offered at the strikethrough price on
08-18-2026

$14.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Radius Arm To Chassis Bushing - Street

ES#4046169 - PFF3-702 - Front Lower Radius Arm To Chassis Bushing - Street - Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street - Powerflex - Audi

Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street

Brand:
Powerflex - Corporate Logo
ES#:
4046169
Mfg#:
PFF3-702
Ships in 1 Business Day
ON SALE! SAVE 15%
$145.99

This product was last offered at the strikethrough price on
08-14-2026

$124.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Lower Control Arm

ES#3181001 - 8W0505311H - Rear Lower Control Arm - Keep your suspension steady - Genuine Volkswagen Audi - Audi

Keep your suspension steady

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181001
Mfg#:
8W0505311H
In Stock
8% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$556.99

This product was last offered at the strikethrough price on
08-18-2026

$509.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Control Arm Parts & Accessories

Control arms link the wheels and suspension to the chassis, allowing the wheels to move over road imperfections while maintaining the correct steering angles needed for handling, even tire wear, and vehicle safety. Regularly inspect and replace bent control arms, loose ball joints, or worn suspension bushings to keep your suspension tight and quiet.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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