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K2 Industries & OUR OWN FAQ's
BMW E81 / E82 / E87 / E88 1 Series & E90 / E91 / E92 / E93 3 Series Rear Shock Mount Set 4-Piece (Replaces 33506771738 / 33506771737)
SKU: 1005006307328223
Sale price
$39.99 USD
Regular price
$43.00 USD
Shipping calculated at checkout.
Restore proper rear suspension mounting and eliminate clunking, knocking, and harsh ride symptoms on your BMW E8X or E9X chassis with this premium rear shock mount set, manufactured from durable rubber and metal construction for reliable factory-spec replacement. The factory rear shock mounts on E81, E82, E87, E88, E90, E91, E92, and E93 chassis are notorious wear components that develop the characteristic clunking and knocking sounds, harsh ride quality, and compromised handling characteristics as the rubber isolators age and tear. When the rear shock mounts fail, you'll typically experience clunking noises over bumps, popping sounds during weight transfer, deteriorated ride quality, and inconsistent rear suspension response under cornering loads. This 4-piece replacement set restores proper rear shock mounting performance with rubber and metal construction matching factory specifications, eliminating the failure-mode symptoms that plague aged BMW E8X / E9X rear suspensions.
Features:
- Direct OE replacement design – manufactured to factory specifications matching original equipment part numbers 33506771738 and 33506771737
- Premium rubber and metal construction – delivers reliable isolation between the rear shock and chassis mounting points
- 4-piece complete set – sufficient hardware for one complete rear shock mount replacement (both rear shocks)
- Restores proper ride quality – eliminates the harsh, jarring ride that develops when factory mounts fail
- Resolves clunking and knocking noises – addresses one of the most common BMW E8X / E9X rear suspension complaints
- Wide chassis compatibility – fits the entire E8X / E9X chassis range across multiple body styles
- Critical preventive maintenance – addresses a known wear point on aged BMW chassis
Specifications:
- Condition: 100% Brand New
- Type: Rear Shock Mount Set
- Material: Rubber & Metal
- Product Dimensions: 5cm x 5cm x 3cm (1.97" x 1.97" x 1.18")
- Quantity: 4 pieces per set
- Position: Rear Shock Upper & Lower Mounting Points
- Purpose: Direct OE Replacement / Suspension System Maintenance
OE / Replacement Part Numbers:
- 33506771738 / 33 50 6 771 738
- 33506771737 / 33 50 6 771 737
Fitment:
- BMW 1 Series:
- BMW E81 (2005 – 2013)
- BMW E82 (2007 – 2013) – Coupe
- BMW E87 (2005 – 2013)
- BMW E88 (2007 – 2013) – Convertible
- BMW 3 Series:
- BMW E90 (2005 – 2013) – Sedan
- BMW E91 (2005 – 2013) – Touring / Wagon
- BMW E92 (2005 – 2013) – Coupe
- BMW E93 (2005 – 2013) – Convertible
- Compatible with all engine variants and trim levels within the listed chassis range
- Verify your factory rear shock mount part numbers match 33506771738 or 33506771737 before ordering
- Confirm vehicle model, chassis code, and production year before ordering
Contents:
- 4x Rear Shock Mounts
Benefits:
- Eliminates the clunking, knocking, and popping sounds that develop as factory rear shock mounts age and deteriorate – one of the most common rear suspension complaints on BMW E8X / E9X chassis
- Restores proper ride quality – correctly functioning shock mounts ensure proper damping isolation between the suspension and chassis
- Improves handling consistency – worn shock mounts allow the rear shock to move within the chassis under load, causing inconsistent damping response and unpredictable handling
- Resolves common BMW rear suspension symptoms – including clunking over bumps, harsh ride quality, popping during cornering, and rear-end inconsistency
- Direct factory-spec replacement ensures correct fitment and performance restoration
- Critical preventive maintenance for any high-mileage BMW E8X / E9X – shock mount wear is universal on aged chassis
- Significant cost savings compared to BMW dealer pricing for the same factory replacement parts
- Wide cross-platform compatibility makes this versatile for BMW enthusiasts who manage multiple E8X / E9X chassis or workshops servicing diverse BMW models
- Complete 4-piece set provides everything needed for full rear shock mount service – no additional sourcing required
Common Symptoms of Failed Rear Shock Mounts:
- Clunking or knocking sounds from the rear over bumps or rough roads
- Popping noises during weight transfer (acceleration, braking, cornering)
- Harsh, jarring ride quality on otherwise smooth roads
- Inconsistent rear suspension response under cornering loads
- Rattling or loose feeling from the rear suspension area
- Visible wear, cracking, or deformation of factory rubber mount components during inspection
Installation Notes:
- Part number verification: Confirm your factory rear shock mounts use OE part numbers 33506771738 or 33506771737 before ordering – verify by inspecting existing mounts
- Replace in pairs minimum: Always replace rear shock mounts in pairs (left and right) to maintain consistent rear suspension geometry – this complete 4-piece set provides hardware for both rear shocks
- Properly support the rear of the vehicle on jack stands rated for the vehicle weight before beginning installation – never work under a vehicle supported only by a jack
- Allow the rear suspension to hang freely or position at static loaded ride height per service procedure for your specific BMW chassis
- Carefully remove the rear shock absorbers from the vehicle following factory service procedure – consult vehicle service documentation for proper removal sequence
- Inspect the rear shock absorbers during installation – worn or damaged shocks should be replaced simultaneously with the new mounts for optimal performance restoration
- Replace any associated hardware (bolts, washers, retaining clips) that shows wear or damage
- Install the new shock mounts onto the rear shock absorbers following factory orientation
- Reinstall the rear shock assemblies into the vehicle using factory torque specifications
- Tighten all suspension hardware to factory torque specifications using a calibrated torque wrench
- Test the suspension by bouncing the rear of the vehicle to verify proper damping operation
- Test drive at low speeds first to verify resolved symptoms (no clunking, smooth ride, consistent rear-end response)
- Inspect installation periodically for any signs of wear or loosening
- Professional installation strongly recommended unless you have experience with BMW rear suspension service procedures
- If unsure about compatibility with your specific BMW variant, contact our team with your year, model, chassis code, and factory shock mount part numbers before ordering
Warranty:
- 12-month standard warranty from date of purchase
- Contact our support team for assistance with any issues
K2 Industries & OUR OWN FAQ's
How do I check fitment?
Check the listing for your year, make, model, trim and engine. Body style, build date and factory options can matter. If the listing is unclear, send FI Performance your vehicle details and the product link or SKU before ordering.
What comes with this part?
Check the product description for quantities, hardware and accessories. Photos may show the part installed with other components. Ask us if you need to confirm whether a part is sold individually, as a pair or as a kit.
Will I need extra parts or modifications?
That depends on the part and your setup. Check for adapters, wiring, coding, tuning, trimming or additional hardware before booking installation. If you already have aftermarket parts, tell us what’s installed.
What should I check for headlights or tail lights?
Match your factory lighting type, connector and body style. Halogen, HID and LED assemblies can differ even on the same model. Check pre-facelift versus facelift fitment and features such as adaptive lights or leveling.
Should I have a shop install it?
We recommend a qualified installer for wiring, engine, brake and suspension work. Inspect the part and confirm fitment before cutting, drilling, painting or modifying anything.
When will my order ship?
Availability and lead time vary by item. If you’re working around a shop appointment or event, contact FI Performance for a current estimate before ordering.
How do returns and warranty claims work?
Contact FI Performance with your order number before sending anything back. Eligibility depends on the item, its condition and the applicable policy. If there’s damage or a defect, keep the packaging and send photos of the part, label and issue.
Is this part intended for street use?
Check the listing for any use restrictions and confirm the requirements where you drive. If you need a specific approval or certification, ask us to verify it for the exact part number before ordering.
Why should I buy from FI Performance?
FI Performance is a USA-based team of automotive enthusiasts focused on quality, reliability and helpful support. We work closely with manufacturers and can help guide your build from product selection through order support.
How can I contact customer support?
Reach FI Performance by live chat, email or phone for product questions, order help and automotive guidance.
What parts are best for my car and goals?
Tell FI Performance your vehicle, intended use and goals. We can help narrow down the right parts and put together a practical modification plan for your build.
Do you offer financing options?
Eligible financing options are shown at checkout. Select the available financing method during checkout to review payment terms and monthly-payment options.
How do I track my order?
When your order ships, FI Performance sends tracking information by email so you can follow delivery progress and view the estimated arrival date.
What payment methods do you accept?
FI Performance accepts major credit cards, PayPal and any financing options displayed at checkout.
How do I know if I have factory Xenon lighting?
Factory Xenon lights commonly have a blue-tinted output and a short warm-up period. Check your owner's manual or send FI Performance your vehicle details so we can help confirm your factory lighting type.
What is the difference between Halogen, HID and LED lighting?
Halogen lighting is the traditional, affordable option. HID lighting typically provides greater brightness, while LED lighting is energy-efficient and long-lasting. FI Performance can help you select the correct option for your vehicle.
How do I prevent lighting condensation?
Condensation can occur as temperatures change. Lighting assemblies are designed to minimize it; contact FI Performance for guidance if you see persistent condensation or have product-specific questions.
How do I check fitment?
Check the listing for your year, make, model, trim and engine. Body style, build date and factory options can matter. If the listing is unclear, send FI Performance your vehicle details and the product link or SKU before ordering.
What comes with this part?
Check the product description for quantities, hardware and accessories. Photos may show the part installed with other components. Ask us if you need to confirm whether a part is sold individually, as a pair or as a kit.
Will I need extra parts or modifications?
That depends on the part and your setup. Check for adapters, wiring, coding, tuning, trimming or additional hardware before booking installation. If you already have aftermarket parts, tell us what’s installed.
What should I check for headlights or tail lights?
Match your factory lighting type, connector and body style. Halogen, HID and LED assemblies can differ even on the same model. Check pre-facelift versus facelift fitment and features such as adaptive lights or leveling.
Should I have a shop install it?
We recommend a qualified installer for wiring, engine, brake and suspension work. Inspect the part and confirm fitment before cutting, drilling, painting or modifying anything.
When will my order ship?
Availability and lead time vary by item. If you’re working around a shop appointment or event, contact FI Performance for a current estimate before ordering.
How do returns and warranty claims work?
Contact FI Performance with your order number before sending anything back. Eligibility depends on the item, its condition and the applicable policy. If there’s damage or a defect, keep the packaging and send photos of the part, label and issue.
Is this part intended for street use?
Check the listing for any use restrictions and confirm the requirements where you drive. If you need a specific approval or certification, ask us to verify it for the exact part number before ordering.
Why should I buy from FI Performance?
FI Performance is a USA-based team of automotive enthusiasts focused on quality, reliability and helpful support. We work closely with manufacturers and can help guide your build from product selection through order support.
How can I contact customer support?
Reach FI Performance by live chat, email or phone for product questions, order help and automotive guidance.
What parts are best for my car and goals?
Tell FI Performance your vehicle, intended use and goals. We can help narrow down the right parts and put together a practical modification plan for your build.
Do you offer financing options?
Eligible financing options are shown at checkout. Select the available financing method during checkout to review payment terms and monthly-payment options.
How do I track my order?
When your order ships, FI Performance sends tracking information by email so you can follow delivery progress and view the estimated arrival date.
What payment methods do you accept?
FI Performance accepts major credit cards, PayPal and any financing options displayed at checkout.
How do I know if I have factory Xenon lighting?
Factory Xenon lights commonly have a blue-tinted output and a short warm-up period. Check your owner's manual or send FI Performance your vehicle details so we can help confirm your factory lighting type.
What is the difference between Halogen, HID and LED lighting?
Halogen lighting is the traditional, affordable option. HID lighting typically provides greater brightness, while LED lighting is energy-efficient and long-lasting. FI Performance can help you select the correct option for your vehicle.
How do I prevent lighting condensation?
Condensation can occur as temperatures change. Lighting assemblies are designed to minimize it; contact FI Performance for guidance if you see persistent condensation or have product-specific questions.
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