Toyota Prius Hatch Lift Support

How Does a Toyota Prius Hatch Lift Support Work?

A Toyota Prius Hatch Lift Support helps raise and hold the rear hatch by using controlled gas pressure inside the strut. GASTAC supplies Prius rear hatch struts for buyers who need OEM-based replacement options, including sg329044, 689500W540, and 68950-0W540, with clear specifications for purchasing confirmation.

When Should Prius Rear Hatch Struts Be Replaced?

Prius rear hatch struts should be replaced when the rear hatch no longer stays open, feels heavier than before, or starts to fall during use. For vehicle owners, repair shops, and parts buyers, replacing weak struts helps restore safe hatch support and improves everyday loading and maintenance access.

Symptoms of Failing Lift Supports

• The rear hatch drops unexpectedly or struggles to stay fully open.
• The trunk lid feels incredibly heavy when lifting.
• Sluggish opening, particularly in cold weather.

What Causes Toyota Prius Hatch Lift Supports to Lose Strength?

A Toyota Prius Hatch Lift Support may lose holding force after long-term use. Common causes include seal aging, pressure loss, surface contamination, and wear from repeated opening and closing.

• Aging seals: Worn seals may reduce the ability to keep internal pressure stable.
• Pressure loss: Lower gas pressure can make the hatch feel heavy or unable to stay open.
• Dirty piston rod: Dust, moisture, or road debris may affect smooth movement and sealing performance.
• Frequent use: Repeated opening and closing can gradually weaken the lift support over time.

Toyota Prius Hatch Lift Support Specification

• Model: Prius
• Compatible Makes: Toyota
• Year: For Prius 2004-2009
• OEM Number: sg329044, 689500W540, 68950-0W540
• Manufacturer Warranty: 2 Years

OEM	Image	Stroke	Extended Length	Compressed Length	Force
sg329044		7.75 in	19.40 in	11.65 in	93 Lbs
689500W540		8.66 in	19.72 in	10.79 in	101 Lbs
68950-0W540		8.66 in	19.72 in	10.79 in	101 Lbs

Which Toyota Prius Models Can These Hatch Lift Supports Fit?

What Makes These Prius Rear Hatch Struts Reliable?

• Highest corrosion resistance achieved through powder coated cylinders and special treated piston rod surfaces.
• Minimal friction for the production of lowest extension forces.
• Great life cycles.
• Protection against vibration and light side forces.
• Integrated grease chamber.
• Low break away forces.
• Installation and storage in any position.

How Do You Install a Toyota Prius Hatch Lift Support?

Replacing a Toyota Prius Hatch Lift Support is a simple DIY task that usually takes about 10 minutes.

• Step 1: Support the hatch: Have someone hold the hatch fully open, or use a secure prop stick to prevent it from falling.
• Step 2: Remove the old lift support: Use a flathead screwdriver to gently lift the small retaining clip, then pull the lift support off the ball mount. Repeat for both ends.
• Step 3: Install the new lift support: Align the new lift support with the ball mounts and push it into place until the clip snaps securely.
• Step 4: Check the direction: Install the new lift support in the same direction as the original one. In most applications, the thicker cylinder end faces upward and the thinner rod end points downward.
• Step 5: Replace both sides: Always replace both lift supports together to keep even pressure and prevent premature wear.

Why Choose Gastac Gas Spring

As a trusted gas spring manufacturer and supplier, Gastac provides reliable gas strut solutions with consistent quality, stable supply, and strong OEM support for global customers. For buyers, choosing a gas spring supplier is not only about price, but also about product durability, batch consistency, delivery reliability, and professional technical support.

• Manufacturer direct supply with stable quality and competitive pricing
• Since 2007, certified with IATF 16949 and ISO 9001:2015
• Bulk and wholesale orders supported with reliable delivery
• OEM-friendly with customizable force, length, stroke, end fittings, and mounting options
• Application support for automotive, furniture, machinery, medical, marine, and industrial uses
• Clear specification confirmation and responsive communication before production
• Two-year after-sales warranty for long-term reliability

FAQ About Toyota Prius Hatch Lift Support

How do I know if this Toyota Prius Hatch Lift Support fits my vehicle?

Check your vehicle year, body style, rear hatch type, and original OEM number before ordering. This lift support is listed for selected Toyota Prius hatchback models, so matching the OEM number and dimensions is the safest way to confirm fitment.

Which OEM numbers can these Prius rear hatch struts replace?

These Prius rear hatch struts are supplied for OEM reference numbers sg329044, 689500W540, and 68950-0W540. Buyers can compare the OEM number, extended length, compressed length, stroke, and force before confirming an order.

Should I replace both Prius rear hatch struts at the same time?

Yes. Replacing both sides together is recommended because left and right hatch struts usually wear at a similar rate. Pair replacement helps keep the hatch lifting force balanced and reduces uneven movement.

What happens if the hatch lift support force is not correct?

If the force is too weak, the hatch may not stay open securely. If the force is too strong, the hatch may open too quickly or put extra stress on the mounting points. That is why force, length, and stroke should be confirmed before purchase.

Can GASTAC supply Toyota Prius hatch lift supports for wholesale or custom orders?

Yes. As a professional gas spring manufacturer and supplier, GASTAC can support OEM replacement, wholesale supply, and custom lift support orders based on OEM number, sample, drawing, force, length, stroke, end fittings, and quantity requirements.

Need help confirming fitment or OEM replacement? Contact us today, visit our OEM replacement page,
or browse our shop and search by OEM number to find the right replacement.