Skip to content

Powerflex Black Rear Lower Spring Mount (Outer) - Mk5 | Mk6 | 8P | Mk2 TT

Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU PFR85-509BLK
Original price $64.99 - Original price $64.99
Original price
$64.99
$64.99 - $64.99
Current price $64.99
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

Rewards
EARN REWARD POINTS
Purchasing this product will earn you 320 points to redeem on future purchases. Check your points.

Powerflex polyurethane bushings are designed to decrease the amount of deflection in your car's suspension which improves handling, driver feedback, and tire wear. Powerflex uses their own premium polyurethane formulation to provide minimal NVH (noise, vibration, harshness) and increased longevity over stock rubber bushings.

Bushings are produced in one of three durometers – Yellow (70A, approximately 25% stiffer than stock), Purple (80A, approximately 30% stiffer than stock), and Black (95A, approximately 80% stiffer than stock). Unlike other brands using only one urethane grade for all applications, Powerflex design engineers choose the correct hardness to allow for the specific movement or rigidity required for each location while minimizing unwanted NVH.

Powerflex urethane hardness is standardized per fitment and location. This takes out the guess work, so when you choose Street, you know our design engineers have selected the optimal polyurethane hardness for your specific application. Select parts are also available in an optional stiffer urethane (Black Series) for track and autocross performance where NVH is less important.

This part also goes by the following cross reference.

Cross Reference Part Number: / 1K050555 / 1K0505311

About these Springs

The POWERFLEX PFR85-509BLK springs support the car's weight and set its ride height. Spring rate and height affect ride comfort, handling and how the car sits, and springs should always be replaced in pairs on the same axle.

Frequently asked questions

What are the signs of a worn or broken spring?

The car sitting lower at one corner, a clunk or rattle over bumps, a visibly cracked or broken coil, or uneven tire wear. Springs can also sag with age, reducing ride height and suspension travel.

Will lowering springs work with my original shocks?

They will fit, but lowering reduces the shock's working travel and many factory shocks are not valved for the higher spring rate. Pairing lowering springs with matching performance or shortened shocks gives better ride quality and shock life.

Do I need an alignment after fitting new springs?

Yes. Changing ride height changes camber and toe, so have a four-wheel alignment done after installation to protect your tires and handling.

Can I install springs myself?

Only with the right equipment. Coil springs store a large amount of energy; compressing them requires a proper spring compressor and doing it incorrectly can cause serious injury. If you do not have the tools and experience, have a professional fit them.

How do I make sure this spring fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.