2018 Subaru WRX STI Suspension Parts
Find Your Specific 2018 Subaru WRX STI Suspension Parts
Below you will find various in-demand Subaru Suspension Parts, components and accessories for your 2018 WRX STI. Advance Auto Parts has popular WRX STI parts like Shocks and Struts, Coil and Leaf Springs, Control Arms and more. You’ll also find aftermarket and OEM Suspension Parts for other WRX STI model years including
2015,
2016,
2017,
2019,
2020,
2021 and more. Select a category of 2018 Subaru WRX STI Suspension Parts below and start saving instantly.
Popular 2018 Subaru WRX STI Suspension Parts Categories
Essential Suspension Parts for 2018 Subaru WRX STIs
Whiteline – Grip Series Kit (Part No.GS1-SUB007)
from
$1171.99
The ultimate entry level suspension upgrade! Performance, handling and comfort make up the Grip Series Stage 1 kit featuring Whiteline signature front and rear adjustable (where applicable) sway bars, drop links and performance lowering springs.
Product Features:
See More
Product Features:
- Bracing maintains alignment angles and spring rates by greatly reducing body or chassis flex.
- Whiteline sway bar mounts utilise the latest technology synthetic elastomer combined with effective designs such as the internal bore knurling and grease retention lips for optimum lubrication & performance.
- DIY Lateral locks prevent shifting or sideways movement of the sway bar under lateral (cornering) loads.
Valvoline – Extended Protection Automatic Transmission Fluid, 1 Quart (Part No.899179)
from
$14.99
Modern transmissions are better than ever, with more gears to help improve fuel efficiency and acceleration. Greater performance calls for greater protection. Valvoline Extended Protection Full Synthetic ATF features our exclusive Dual Defense Additive Technology for two layers of protection against metal-on-metal contact and thermal breakdown, all while minimizing wear on clutch components. In fact, Valvoline Extended Protection Full Synthetic ATF is 45% stronger against breakdown compared to major brand DEX/MERC oxidative PDSC performance. Proven to maximize transmission life, our patented formula is suitable for use in 92% of vehicles in light duty automatic transmissions 2010 and newer. Keep your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand.
Product Features:
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Product Features:
- The ultimate protection for your automatic transmission
- 45% stronger against breakdown
- Dual Defense Additive Technology combines friction modifiers and anti-wear additives for two layers of protection
- Suitable for use in over 92% of vehicles in light duty automatic transmissions 2010 and newer
Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon (Part No.773775)
from
$36.49
Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid (ATF) is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi.
Product Features:
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Product Features:
- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
- Long life friction modifiers help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
- High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
- Developed with anti-wear technology to help improve transmission durability
- Advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- Suitable for 95% of traditional ATFs including Dex/Merc, Mercon LV & Mercon V
Royal Purple – Max Performance Synthetic Power Steering Fluid (Part No.01326)
from
$6.29
Max Performance Synthetic Power Steering Fluid
Whiteline – Essential Vehicle Kit (Part No.WEK090)
from
$363.99
Whiteline’s ‘Vehicle Essential Kits’ contain all the essential components to ‘Activate More Grip’.
Product Features:
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Product Features:
- Hand picked Whiteline bushings and/or alignment, geometry products best suiting your vehicle.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Monroe – Strut-Mate Strut Mounting Kit (Part No.908926)
from
$73.99
Every new strut deserves a Monroe® Strut-Mate® Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.
Product Features:
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Product Features:
- PERFECT PAIRING — Ideal match for the ride control characteristics of Monroe® struts, replace all worn strut components with quality Monroe parts (sold separately) for a complete four-corner ride control upgrade
- REDUCES NOISE AND VIBRATION — Features advanced elastomer technology for enhanced metal-to-rubber bonding that reduces noise, vibration and memory steer for improved performance
- REPLACES OE — Available for most Monroe strut applications, this is a direct fit for replacing the OE strut mount
- RIGOROUS TESTING — Fit checked and ride tested for quality you can count on
- EASY TO INSTALL — Includes premium-quality replacement components where applicable – SAE-grade nuts and bolts, upper and lower spring isolators, OE-style bearings and mount, upper spring seat and front bearing plate that install easily
Whiteline – Trailing Arm Lower Front Bushing (Part No.W63414)
from
$103.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your trailing arm bushings have failed. Replace these worn parts with Whiteline bushings with core characteristics ensuring superior elasticity, memory and outright durability that offer a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Trailing Arm Lower Rear Bushing (Part No.W63582)
from
$47.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your trailing arm bushings have failed. Replace these worn parts with Whiteline bushings with core characteristics ensuring superior elasticity, memory and outright durability that offer a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Internal grease reservoirs provide continual self-lubrication for optimum friction management.
Whiteline – Coil Springs Lowered (Part No.WSK-SUB007)
from
$336.99
Whiteline Springs deliver improved vehicle performance whilst maintaining safety and ride quality characteristics. This kit contains 6.1kg/mm (329lb/in) front rated springs that provide a 15mm drop while the 5.8kg/mm (325lb/in) rears deliver a desirable 15mm to the rear of the vehicle. By lowering the vehicles centre of gravity, the unique and progressive rate coil design not only improve performance but enhance overall appearance. Developed and manufactured in Europe from the highest quality materials, coating and to the finest tolerances guaranteeing exact fitment. Whiteline Springs are engineered for optimal balance with OEM and aftermarket shocks. For total grip activation match with Whiteline Sway Bar and Essentials kit for unrivalled handling and optimal vehicle performance.
Product Features:
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Product Features:
- Cold rolled in Europe from the highest quality material.
- Engineered for superior fit/performance with OEM shocks while produced to the finest tolerances ensuring exact fitment.
- Protective powder coating acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
MOOG – Control Arm (Part No.RK100136)
from
$202.99
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.
Product Features:
See More
Product Features:
- EASY TO INSTALL — Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
- HIGHLY PRECISE ENGINEERING — Optimized bushings for quiet operation and resistance to wear, salt, road grime and oils
- COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
- Construction and design validated by MOOG engineers
- Broad coverage for foreign and domestic applications
- R-Series (RK) products are the right choice for value-driven repair
Delphi – Suspension Control Arm, 1 Pack (Part No.L2000540262DEL)
from
$76.21
Our OE safety technology is fitted to millions of vehicles worldwide and we apply our OE expertise to our aftermarket steering portfolio. Delphi tests to the extreme for OE performance at every turn: our parts withstand temperatures below -40 degrees C and over 120 degrees C and are exposed to 720 hours of salt spray. Delphi’s extensive dimensional and material analysis ensures the very best compatibility between the OE and aftermarket part.
Product Features:
See More
Product Features:
- Delphi control arms undergo 100% crack detection and ultrasonic flaw detection to ensure materials match OE specifications
- Control arms utilize robot welding for consistent performance and quality
- Delphi machines the ball studs to Micron tolerances to guarantee durability and smooth Joint operation
- Anti-corrosion protection applied to each part for optimum corrosion prevention and enhanced aesthetics
Whiteline – Toe Arm Arm (Part No.KTA147B)
from
$382.99
Especially on lowered vehicles where rear toe alignment is a must, achieving that desired setting is hindered by lack of factory toe adjustment. Whiteline KTA147B allows for precise toe alignment tuning of the rear suspension. Kit also comes complete with factory toe lock out washers to maintain desired settings.
Product Features:
See More
Product Features:
- Featuring anti geometry that works to aid traction by allowing the wheel to track the ground more precisely resulting in superior traction under power including cornering and dramatically reducing understeer and front wheel spin.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Control Arm Lower Arm Assembly (Camber/Toe Correction) Motorsport (Part No.KTA216A)
from
$347.99
Adjustable lower control arms feature a light weight (1.72kg/3.8lbs per complete arm) stamped steel design. Adjusts via cam bolt for on-car adjustment versatility.
Product Features:
See More
Product Features:
- Engineered to alter/ optimise camber alignment to compensate for body roll, body distortion and tyre roll when cornering.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
Autopart International Inc – Control Arm (Part No.L20003191937API)
from
$71.81
Control Arm
Whiteline – Control Arm Upper Outer Bearing (Part No.W63412)
from
$155.99
A common serviceable item, worn joints exhibit excess movement and are commonly diagnosed simply from knocking and rattling noises coming from the upright or hub area. If worn and not replaced, these joints can have significant negative impact on wheel alignment and resulting uneven tyre wear or scrub. Whiteline’s replacement joints boast superior internal joint structure for improved performance and durability. The outer housing also features a chamfered leading edge for ease of installation.
Product Features:
See More
Product Features:
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
Whiteline – Control Arm Upper Inner Bushing (Part No.W63225)
from
$184.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your control arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
Whiteline – Control Arm Lower Inner Front Bushing (Part No.W0508)
from
$47.99
Over compliant front control arm bushings have a huge influence on vehicle stability, steering precision and braking efficiency. Whiteline’s kit is specially designed to improve deflection rates for improved response and chassis control.
Product Features:
See More
Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Dorman – Suspension Control Arm Bushing (Part No.533-844)
from
$13.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.
Product Features:
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Product Features:
- Direct replacement – fits and performs like the original equipment bushing on specific vehicles.
- Reliable fit – precision-engineered to match the design and dimensions of original components.
- Durable construction – manufactured to strict standards using sturdy, safe materials
- Rigorously tested – thorough quality control measures ensure longevity
MOOG – Control Arm Bushing (Part No.K201882)
from
$43.49
Backed by superior materials and rigorous testing, MOOG control arm bushings deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.
Product Features:
See More
Product Features:
- HIGHLY PRECISE ENGINEERING — Optimized for quiet operation and resistance to wear, salt, road grime and oils
- PREMIUM MATERIALS — Made from high-quality elastomer compounds for durability and ride performance
- OE-STYLE DESIGN — Engineered to match or exceed OE requirements
- RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
Whiteline – Control Arm Lower Inner Bushing (Part No.W63428)
from
$52.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your control arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Toe Arm Inner Bushing (Part No.W63583)
from
$33.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your toe arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Internal grease reservoirs provide continual self-lubrication for optimum friction management.
KYB – Strut Mount with Internal Bearing (Part No.SM5664)
from
$78.99
KYB Strut Mounts eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. KYB Strut Mounts cushion the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle. Front bearing plates are the steering pivots and support vehicle weight. They are critical to steering performance and wheel alignment. KYB Strut Mounts and bearing plates have a reputation for providing the highest quality in the industry.
Product Features:
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Product Features:
- The Highest Quality Replacement Strut Mount Available
- Optimizes Suspension Performance By Offering Original Equipment Quality Replacement Components Designed For Each Application
- Superior Rubber Reduces Noise, Vibration And Harshness
- Mount Bearings Provide Smoother Steering And Help Retain Front End Alignment
- Matched Grade Studs And Nuts
KYB – Strut Mount (Part No.L3030452911KYB)
from
$116.74
KYB Strut Mounts eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. KYB Strut Mounts cushion the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle. Front bearing plates are the steering pivots and support vehicle weight. They are critical to steering performance and wheel alignment. KYB Strut Mounts and bearing plates have a reputation for providing the highest quality in the industry.
Product Features:
See More
Product Features:
- The highest quality replacement strut mount available
- Optimizes suspension performance by offering Original Equipment quality replacement components designed for each application
- Superior rubber reduces noise, vibration and harshness
- Mount bearings provide smoother steering and help retain front end alignment
- Matched grade studs and nuts
Rare Parts – Strut Mount (Part No.RP53937)
from
$133.99
This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.
Product Features:
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Product Features:
- Meets or exceeds OE requirements
- Helps restore vehicle ride.
- Reduces tire wear
Upgrade your 2018 Subaru WRX STI with Top-Quality Suspension Parts
When it comes to maintaining or upgrading your 2018 Subaru WRX STI, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Subaru or enhancing its overall performance, Suspension Parts are key to keeping your WRX STI functioning at its best. At Advance Auto Parts, we offer a wide selection of 25 Suspension Parts for the 2018 Subaru WRX STI, designed to meet your needs without breaking the bank.
From
Shocks and Strut
replacements to
Coil and Leaf Springs
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Suspension Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Suspension Parts for your 2018 Subaru WRX STI at great prices.
Our Suspension Parts inventory for this model
ranges from just $6.29 to $1,171.99, with
an average price of $166.19.
Our 25 Suspension Parts in stock come from 9 trusted brands, so you’re sure to find the right part for your 2018 Subaru WRX STI without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2018 Subaru WRX STI, we stock popular OEM and aftermarket Suspension Parts from top names
like Valvoline, and more.
Valvoline Suspension Parts
start at just $14.99 and boast an impressive 5 stars average rating from customers.
With 892 customer reviews and counting, our 2018 Subaru WRX STI Suspension Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Suspension Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2018 Subaru WRX STI is always ready to roll. We’re committed to providing you with everything you need to keep your WRX STI in top shape, all in one place.
Start shopping confidently below for your 2018 Subaru WRX STI!
Best-Selling Shocks and Struts for 2018 Subaru WRX STIs
Enhance the driving experience in your Subaru with 1 quality Shocks and Strut components, starting at $116.74.
KYB – Strut Mount (Part No.L3030452911KYB)
from
$116.74
KYB Strut Mounts eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. KYB Strut Mounts cushion the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle. Front bearing plates are the steering pivots and support vehicle weight. They are critical to steering performance and wheel alignment. KYB Strut Mounts and bearing plates have a reputation for providing the highest quality in the industry.
Product Features:
See More
Product Features:
- The highest quality replacement strut mount available
- Optimizes suspension performance by offering Original Equipment quality replacement components designed for each application
- Superior rubber reduces noise, vibration and harshness
- Mount bearings provide smoother steering and help retain front end alignment
- Matched grade studs and nuts
Most Popular 2018 Subaru WRX STI Coil and Leaf Springs
Customize your Subaru with 2 Coil and Leaf Springs products
like Coil Spring Lowering Kits and
Coil Spring / Stabilizer Bar Kits, all
priced under $1,171.99.
Whiteline – Grip Series Kit (Part No.GS1-SUB007)
from
$1171.99
The ultimate entry level suspension upgrade! Performance, handling and comfort make up the Grip Series Stage 1 kit featuring Whiteline signature front and rear adjustable (where applicable) sway bars, drop links and performance lowering springs.
Product Features:
See More
Product Features:
- Bracing maintains alignment angles and spring rates by greatly reducing body or chassis flex.
- Whiteline sway bar mounts utilise the latest technology synthetic elastomer combined with effective designs such as the internal bore knurling and grease retention lips for optimum lubrication & performance.
- DIY Lateral locks prevent shifting or sideways movement of the sway bar under lateral (cornering) loads.
Whiteline – Coil Springs Lowered (Part No.WSK-SUB007)
from
$336.99
Whiteline Springs deliver improved vehicle performance whilst maintaining safety and ride quality characteristics. This kit contains 6.1kg/mm (329lb/in) front rated springs that provide a 15mm drop while the 5.8kg/mm (325lb/in) rears deliver a desirable 15mm to the rear of the vehicle. By lowering the vehicles centre of gravity, the unique and progressive rate coil design not only improve performance but enhance overall appearance. Developed and manufactured in Europe from the highest quality materials, coating and to the finest tolerances guaranteeing exact fitment. Whiteline Springs are engineered for optimal balance with OEM and aftermarket shocks. For total grip activation match with Whiteline Sway Bar and Essentials kit for unrivalled handling and optimal vehicle performance.
Product Features:
See More
Product Features:
- Cold rolled in Europe from the highest quality material.
- Engineered for superior fit/performance with OEM shocks while produced to the finest tolerances ensuring exact fitment.
- Protective powder coating acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
Top Picks for 2018 Subaru WRX STI Control Arms
Upgrade Subaru WRX STIs with top-quality Control Arms parts, including 15 OEM and aftermarket selections for your 2018 model.
MOOG – Control Arm (Part No.RK100136)
from
$202.99
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.
Product Features:
See More
Product Features:
- EASY TO INSTALL — Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
- HIGHLY PRECISE ENGINEERING — Optimized bushings for quiet operation and resistance to wear, salt, road grime and oils
- COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
- Construction and design validated by MOOG engineers
- Broad coverage for foreign and domestic applications
- R-Series (RK) products are the right choice for value-driven repair
Whiteline – Toe Arm Arm (Part No.KTA147B)
from
$382.99
Especially on lowered vehicles where rear toe alignment is a must, achieving that desired setting is hindered by lack of factory toe adjustment. Whiteline KTA147B allows for precise toe alignment tuning of the rear suspension. Kit also comes complete with factory toe lock out washers to maintain desired settings.
Product Features:
See More
Product Features:
- Featuring anti geometry that works to aid traction by allowing the wheel to track the ground more precisely resulting in superior traction under power including cornering and dramatically reducing understeer and front wheel spin.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Control Arm Lower Arm Assembly (Camber/Toe Correction) Motorsport (Part No.KTA216A)
from
$347.99
Adjustable lower control arms feature a light weight (1.72kg/3.8lbs per complete arm) stamped steel design. Adjusts via cam bolt for on-car adjustment versatility.
Product Features:
See More
Product Features:
- Engineered to alter/ optimise camber alignment to compensate for body roll, body distortion and tyre roll when cornering.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
Whiteline – Control Arm Upper Inner Bushing (Part No.W63225)
from
$184.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your control arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
Whiteline – Control Arm Upper Outer Bearing (Part No.W63412)
from
$155.99
A common serviceable item, worn joints exhibit excess movement and are commonly diagnosed simply from knocking and rattling noises coming from the upright or hub area. If worn and not replaced, these joints can have significant negative impact on wheel alignment and resulting uneven tyre wear or scrub. Whiteline’s replacement joints boast superior internal joint structure for improved performance and durability. The outer housing also features a chamfered leading edge for ease of installation.
Product Features:
See More
Product Features:
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
Dorman – Control Arm (Part No.L20001317172DOR)
from
$149.53
Rigorously tested for sustained, secure performance by a team of product and quality engineers, Dorman’s Control Arm & Ball Joint Assembly is designed for passenger safety. Dorman’s industry-leading evaluation process ensures a smooth ride, directional stability, and agile handling.
Product Features:
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Product Features:
- Ball joints and bushings included for a complete installation, saving time and labor (where applicable)
- Direct replacement for a trouble-free installation
- Steel, iron or aluminum construction ensures durability
- Powder-coated or painted for long-lasting rust and corrosion resistance
Dorman – Control Arm (Part No.L20001317173DOR)
from
$149.04
Control Arm
Delphi – Suspension Control Arm, 1 Pack (Part No.L2000540262DEL)
from
$76.21
Our OE safety technology is fitted to millions of vehicles worldwide and we apply our OE expertise to our aftermarket steering portfolio. Delphi tests to the extreme for OE performance at every turn: our parts withstand temperatures below -40 degrees C and over 120 degrees C and are exposed to 720 hours of salt spray. Delphi’s extensive dimensional and material analysis ensures the very best compatibility between the OE and aftermarket part.
Product Features:
See More
Product Features:
- Delphi control arms undergo 100% crack detection and ultrasonic flaw detection to ensure materials match OE specifications
- Control arms utilize robot welding for consistent performance and quality
- Delphi machines the ball studs to Micron tolerances to guarantee durability and smooth Joint operation
- Anti-corrosion protection applied to each part for optimum corrosion prevention and enhanced aesthetics
Whiteline – Control Arm Lower Inner Bushing (Part No.W63428)
from
$52.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your control arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Control Arm Lower Inner Front Bushing (Part No.W0508)
from
$47.99
Over compliant front control arm bushings have a huge influence on vehicle stability, steering precision and braking efficiency. Whiteline’s kit is specially designed to improve deflection rates for improved response and chassis control.
Product Features:
See More
Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
MOOG – Control Arm Bushing (Part No.K201882)
from
$43.49
Backed by superior materials and rigorous testing, MOOG control arm bushings deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.
Product Features:
See More
Product Features:
- HIGHLY PRECISE ENGINEERING — Optimized for quiet operation and resistance to wear, salt, road grime and oils
- PREMIUM MATERIALS — Made from high-quality elastomer compounds for durability and ride performance
- OE-STYLE DESIGN — Engineered to match or exceed OE requirements
- RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
Whiteline – Toe Arm Inner Bushing (Part No.W63583)
from
$33.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your toe arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Internal grease reservoirs provide continual self-lubrication for optimum friction management.
Worldpac – CONTROL ARM BUSHING (Part No.L20303125166MOG)
from
$28.72
CONTROL ARM BUSHING
Dorman – Suspension Control Arm Bushing (Part No.533-844)
from
$13.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.
Product Features:
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Product Features:
- Direct replacement – fits and performs like the original equipment bushing on specific vehicles.
- Reliable fit – precision-engineered to match the design and dimensions of original components.
- Durable construction – manufactured to strict standards using sturdy, safe materials
- Rigorously tested – thorough quality control measures ensure longevity
MOOG – Control Arm Bushing (Part No.K202060)
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$10.49
Control Arm Bushing
In-Demand Air Suspension and Kits for 2018 Subaru WRX STIs
Select from 5 premium Air Suspension and Kits parts for your 2018 Subaru WRX STI, with prices ranging from $6.29 to $363.99.
Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon (Part No.773775)
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$36.49
Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid (ATF) is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi.
Product Features:
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Product Features:
- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
- Long life friction modifiers help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
- High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
- Developed with anti-wear technology to help improve transmission durability
- Advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- Suitable for 95% of traditional ATFs including Dex/Merc, Mercon LV & Mercon V
Monroe – Strut-Mate Strut Mounting Kit (Part No.908926)
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$73.99
Every new strut deserves a Monroe® Strut-Mate® Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.
Product Features:
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Product Features:
- PERFECT PAIRING — Ideal match for the ride control characteristics of Monroe® struts, replace all worn strut components with quality Monroe parts (sold separately) for a complete four-corner ride control upgrade
- REDUCES NOISE AND VIBRATION — Features advanced elastomer technology for enhanced metal-to-rubber bonding that reduces noise, vibration and memory steer for improved performance
- REPLACES OE — Available for most Monroe strut applications, this is a direct fit for replacing the OE strut mount
- RIGOROUS TESTING — Fit checked and ride tested for quality you can count on
- EASY TO INSTALL — Includes premium-quality replacement components where applicable – SAE-grade nuts and bolts, upper and lower spring isolators, OE-style bearings and mount, upper spring seat and front bearing plate that install easily
Whiteline – Essential Vehicle Kit (Part No.WEK090)
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$363.99
Whiteline’s ‘Vehicle Essential Kits’ contain all the essential components to ‘Activate More Grip’.
Product Features:
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Product Features:
- Hand picked Whiteline bushings and/or alignment, geometry products best suiting your vehicle.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Valvoline – Extended Protection Automatic Transmission Fluid, 1 Quart (Part No.899179)
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$14.99
Modern transmissions are better than ever, with more gears to help improve fuel efficiency and acceleration. Greater performance calls for greater protection. Valvoline Extended Protection Full Synthetic ATF features our exclusive Dual Defense Additive Technology for two layers of protection against metal-on-metal contact and thermal breakdown, all while minimizing wear on clutch components. In fact, Valvoline Extended Protection Full Synthetic ATF is 45% stronger against breakdown compared to major brand DEX/MERC oxidative PDSC performance. Proven to maximize transmission life, our patented formula is suitable for use in 92% of vehicles in light duty automatic transmissions 2010 and newer. Keep your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand.
Product Features:
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Product Features:
- The ultimate protection for your automatic transmission
- 45% stronger against breakdown
- Dual Defense Additive Technology combines friction modifiers and anti-wear additives for two layers of protection
- Suitable for use in over 92% of vehicles in light duty automatic transmissions 2010 and newer
Royal Purple – Max Performance Synthetic Power Steering Fluid (Part No.01326)
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$6.29
Max Performance Synthetic Power Steering Fluid
Most Sold 2018 Subaru WRX STI Trailing Arms
Explore our best-selling Subaru parts for the 2018 WRX STI among 2 OEM and aftermarket options starting from $47.99.
Whiteline – Trailing Arm Lower Front Bushing (Part No.W63414)
from
$103.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your trailing arm bushings have failed. Replace these worn parts with Whiteline bushings with core characteristics ensuring superior elasticity, memory and outright durability that offer a safer more predictable vehicle.
Product Features:
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Product Features:
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Whiteline – Trailing Arm Lower Rear Bushing (Part No.W63582)
from
$47.99
Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your trailing arm bushings have failed. Replace these worn parts with Whiteline bushings with core characteristics ensuring superior elasticity, memory and outright durability that offer a safer more predictable vehicle.
Product Features:
See More
Product Features:
- Designed with the installer in mind by reducing the need of specialised skills, tools and equipment.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
- Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
- Internal grease reservoirs provide continual self-lubrication for optimum friction management.
Top-Rated Suspension Parts Brands For Your 2018 Subaru WRX STI
Shop for the best-rated brands offering Suspension Parts and other products for your 2018 Subaru WRX STIs. Below you’ll find some of our best rated Suspension Parts from Valvoline, and more. Suspension Parts from these brands that fit a 2018 WRX STI start at just $14.99 and are rated as high as 5 stars. OEM and aftermarket Suspension Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Valvoline 2018 Subaru WRX STI Suspension Parts
When it comes to maintaining or upgrading your 2018 Subaru WRX STI, using quality Suspension Parts is essential to ensure durability and a perfect fit. Valvoline ticks all of those boxes. We offer a wide selection of Valvoline Suspension Parts, specifically designed for the 2018 Subaru WRX STI. With over 2 Valvoline brand Suspension Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $14.99, with an average price of just $25.74. Plus, with over 446 customer reviews and an average rating of 5 stars, you can trust that our Valvoline Suspension Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$36.49
$36.49
(446)
MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Gallon
“Good product”
FAQs for 2018 Subaru WRX STI Suspension Parts
Which Suspension Parts are best-sellers for 2018 Subaru WRX STIs?
Out of 25 Suspension Parts that fit 2018 Subaru WRX STIs, the following parts are the top sellers:
- Strut-Mate Strut Mounting Kit (10641078) – $73.99
- Control Arm (11620091) – $202.99
- Coil Springs Lowered (12542274) – $336.99
What’s the price range for 2018 Subaru WRX STI Suspension Parts?
Suspension Part prices for the 2018 Subaru WRX STI start at $6.29 and go up to $1,171.99 for the most premium parts.
What’s the average price of a Suspension Part for a 2018 Subaru WRX STI?
The average price for Suspension Parts for the 2018 Subaru WRX STI is $166.19. Keep in mind the variety of part types within our Suspension Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Suspension Parts for other Subaru WRX STI model years?
What are the cheapest Suspension Parts for my 2018 Subaru WRX STI?
The cheapest 2018 Subaru WRX STI Suspension Parts we carry in stock are:
- Max Performance Synthetic Power Steering Fluid (11150908) – $6.29
- Control Arm Bushing (50037370) – $10.49
- Suspension Control Arm Bushing (50211982) – $13.99
- Extended Protection Automatic Transmission Fluid, 1 Quart (50012424) – $14.99
- CONTROL ARM BUSHING (50206398) – $28.72
What types of Suspension Parts do you sell for my 2018 Subaru WRX STI?
As of 2/5/25, these are some of the most in-demand types of Suspension Parts for a 2018 Subaru WRX STI:
Can I get help with 2018 Subaru WRX STI Suspension Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Subaru Suspension Parts and more.
What is your return policy for Subaru WRX STI Suspension Parts?
Advance Auto Parts keeps returns simple. For new Subaru WRX STI Suspension Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
