BMW 3 Series E46 80A Polyurethane Front & Rear Anti-Roll Sway Bar Bushing Set 2001 - 2006 (Replaces 31351097179 / 33551138104)

Upgrade the suspension performance of your BMW E46 3 Series with this premium 80A polyurethane front and rear anti-roll sway bar bushing set, engineered to deliver sharper handling response, reduced suspension deflection, and dramatically extended service life compared to factory rubber bushings. Factory rubber sway bar bushings on the E46 are a known weak point — after years of use they degrade, crack, and develop excessive compliance, allowing the sway bar to deflect under load and reducing the effectiveness of the entire anti-roll system. This 80A polyurethane upgrade replaces both the front and rear sway bar bushings with a significantly stronger material that maintains its properties over time, providing consistent sway bar control through corners while minimizing wear, reducing noise, and improving shock absorption characteristics for a refined street performance setup.

Features:

• Premium polyurethane construction – delivers significantly less wear, improved shock absorption, and reduced noise compared to factory rubber bushings
• 80A hardness rating – optimized for street performance applications, balancing sharper handling response with reasonable ride comfort and low NVH increase
• Robust load handling – polyurethane material is strong enough to control sway bar movement and maintain wheel positioning under increased horsepower and larger tire applications where rubber bushings would be overstressed
• Extended service life – polyurethane does not deteriorate like standard rubber bushings, maintaining optimal suspension geometry and handling characteristics over long-term use
• Direct replacement design – installs into factory sway bar mounting points without modification for a clean, OE-grade fitment
• Complete front and rear set – addresses both anti-roll bar bushing positions for a coordinated suspension upgrade

Specifications:

• Condition: 100% Brand New
• Type: Front & Rear Anti-Roll Sway Bar Bushing Set
• Material: Polyurethane
• Hardness: 80A (Street Performance)
• Recommended Use: Street Performance
• NVH Increase: Low (will increase steering wheel feedback and road imperfection transfer)
• Item Weight: 0.5 kg
• Position: Front & Rear Sway Bar Mounts
• Purpose: Performance Upgrade / Replacement

OE / Replacement Part Numbers:

• Front Sway Bar Bushing: 31351097179 / 31 35 1 097 179
• Rear Sway Bar Bushing: 33551138104 / 33 55 1 138 104

Fitment:

Strict fitment requirements – verify your sway bar diameter and trim before ordering.

• BMW 3 Series E46 (2001 – 2006)
• Front bushing fitment: Compatible with 23mm front stabilizer bar only
• Rear bushing fitment: Compatible with 18mm rear stabilizer bar only
• Will NOT fit: E46 M3, xi (all-wheel drive), Ti / Compact, Convertible, or Convertible Sport Suspension models
• Will NOT fit: Sport Suspension setups or sway bars of other diameters (e.g. 15mm)
• Confirm vehicle model, drivetrain (RWD only), trim, and sway bar diameters before ordering

Contents:

• Front Anti-Roll Sway Bar Polyurethane Bushings
• Rear Anti-Roll Sway Bar Polyurethane Bushings

Benefits:

• Polyurethane construction permanently eliminates the deterioration, cracking, and excessive compliance issues that plague factory rubber sway bar bushings on aging E46 chassis
• 80A street-optimized hardness delivers sharper turn-in response and reduced body roll compared to worn or factory rubber bushings, while keeping NVH increase low for daily driveability
• Maintains consistent sway bar effectiveness over time – polyurethane preserves its mechanical properties for the lifetime of the vehicle, unlike rubber which degrades progressively
• Improved shock absorption characteristics deliver better impact damping than aged rubber bushings while still providing the rigidity needed for performance handling
• Strong enough to handle increased loads from horsepower upgrades, larger wheel and tire packages, and spirited driving where rubber bushings would be overstressed
• Significant cost savings compared to genuine BMW dealer rubber bushings, with substantially better long-term performance and durability

Installation Notes:

• Greasing required: Polyurethane bushings must be properly greased with polyurethane-specific lubricant during installation – using insufficient grease will result in squeaking and accelerated bushing wear
• Use only polyurethane-compatible grease – petroleum-based greases will degrade polyurethane material over time. Most polyurethane bushing kits ship with a small grease packet; if not, source a dedicated silicone or polyurethane-safe grease before installation
• Strict fitment verification required: Measure your front (23mm) and rear (18mm) sway bar diameters before ordering – this kit will not fit other diameters or M3 / xi / Ti / Compact / Convertible variants
• Vehicle wheel alignment is recommended after installation – sway bar bushing replacement can affect ride height and alignment slightly
• Properly support the vehicle on jack stands rated for the vehicle weight before beginning installation – never work under a vehicle supported only by a jack
• Inspect sway bar end links during installation – worn end links will compromise the performance benefits of upgraded bushings and should be replaced together
• Professional installation strongly recommended unless you have experience with suspension service procedures
• If unsure about compatibility with your specific E46 variant or sway bar diameter, contact our team with your year, model, trim, and drivetrain configuration before ordering

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

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Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping Information:

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