• BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 2
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 3
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 4
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 5
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 6
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 7
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 8
  • BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 — product photo 9

BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 2018 / Replaces 6B-907755 99151255120 99151255121

76 in stock
$27.29
$27.29
Shipping calculated at checkout.
SKU: BXC300006035-2
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  • Free U.S. shipping
  • BOXI limited warranty

Free shipping on every order. Place it before 1:00 PM PT Mon–Fri and it ships the same day.

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Placement on Vehicle:Liftgate
Package included:2pcs Liftgate Lift Supports

Fits the following vehicles:
Fits for Porsche 911:
2018 Carrera 4 Convertible 2-Door
2018 Carrera 4 Coupe 2-Door
2018 Carrera 4S Convertible 2-Door
2018 Carrera 4S Coupe 2-Door
2018 Carrera Convertible 2-Door
2018 Carrera Coupe 2-Door
2018 Targa 4S Targa 2-Door
2018 Targa 4 Targa 2-Door
2018 Turbo Convertible 2-Door
2018 Turbo Coupe 2-Door
2018 Turbo S Convertible 2-Door
2018 Turbo S Coupe 2-Door
2018 Turbo S Exclusive Series Coupe 2-Door
2017 Carrera 4 Convertible 2-Door
2017 Carrera 4 Coupe 2-Door
2017 Carrera 4S Convertible 2-Door
2017 Carrera 4S Coupe 2-Door
2017 Carrera Convertible 2-Door
2017 Carrera Coupe 2-Door
2017 Carrera S Convertible 2-Door
2017 Carrera S Coupe 2-Door
2017 Targa 4S Targa 2-Door
2017 Targa 4 Targa 2-Door
2017 Targa Targa 2-Door
2017 Turbo Convertible 2-Door
2017 Turbo Coupe 2-Door
2017 Turbo S Convertible 2-Door
2017 Turbo S Coupe 2-Door

Interchangable OEM Numbers: 907755, 991 512 551 20, 991 512 551 21, 99151255120, 99151255121, 6B907755, 6B-907755
Extended Length [Inches]: 6.54''
Compressed Length [Inches]: 5.12''
Package including:
2pcs Liftgate Lift Supports

Specifications

Brand BOXI
Hardware Included: No
Extended Length (in) 6.54
Extended Length (mm): 166
Stroke (in): 1.58
Stroke (mm): 40
Compressed Length (in) 4.96
Compressed Length (mm): 126
Force (Lbs) 38
Force (Newtons) 170
Cylinder Diameter (in): 0.71
Cylinder Diameter (mm): 18
Rod Diameter (in): 0.31
Rod Diameter (mm): 8
Body Connection: Ball Socket
Shaft Connection: Ball Socket
Type: Gas
Material Steel
Unit of Measure: Each
Warranty Terms 5 Years
Interchange Part Number 991 512 551 20, 991 512 551 21, 176637, 905369, 907755, 6B-907755
BOXI Qty(2) Rear Engine Liftgate Lift Supports Gas Shocks Springs Struts Fits for Porsche 911 2017 2018 / Replaces 6B-907755 99151255120 99151255121

$27.29

A Decade of Trusted Parts

Serving DIYers and professional mechanics across the U.S. with high-quality, reliable, and affordable auto parts.

Built to OEM Standards

Ball joints, lift supports, tie rods, sway bar links, cooling fans, blower motors, brakes, and more — engineered to meet or exceed OEM specs.

Fast Shipping & Easy Fitment

Ships fast from our California warehouse, with Year/Make/Model search so you find the exact part for your vehicle — the first time.

Does it come with a warranty?

Yes. Every BOXI part is covered by a limited warranty against manufacturing defects from the date of delivery: 5 years on hood, trunk and tailgate lift supports, and 2 years on all other BOXI parts. The exact term for this part is shown in the specification table on this page. If a part fails within that period, email sales@tetronauto.us with your order number and photos and we'll arrange a replacement or a refund.

What if the part doesn't fit my vehicle?

Use the Year / Make / Model search or match the interchange numbers listed in the product title and description before ordering — fitment is the buyer's responsibility. If you do end up with the wrong part, you can return it within 30 days as long as it is unused, uninstalled and in its original packaging. Not sure? Email sales@tetronauto.us with your VIN and we'll confirm the right part for you.

How fast is shipping?

Free standard shipping on every order to all 50 U.S. states, with no minimum. Orders placed before 1:00 PM PT on a business day are dispatched the same day; later orders go out the next business day. We ship via UPS, USPS and FedEx, and carrier transit is typically 3–5 business days. A tracking number is emailed as soon as your order ships.

What's the returns policy?

Returns are accepted within 30 days of delivery on items that are unused, uninstalled and in original packaging with all hardware. There is no restocking fee. If the part is defective or we shipped the wrong item, we cover return shipping; for any other reason return shipping is the customer's responsibility. Electrical components — including blower motors and resistors — cannot be returned once installed. Email sales@tetronauto.us for a return authorization before shipping anything back.

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