Engine Hood Gas Strut
Hydropneumatic Engine Hood Gas Strut holds and lifts vehicle hoods. Xingtai Juxiang Machinery Manufacturing Factory was established in 2002 to produce hood gas struts, using seamless steel tubes and QPQ-treated piston rods. The units operate steadily from -40°C to +80°C. They feature self-lubricating structure and can be swapped directly with no modification. We accept OEM/ODM custom orders with 50-unit MOQ and supply automotive buyers across Europe, Southeast Asia, the Middle East and other regions.
Also called gas spring, Engine Hood Gas Strut works as an alternative to traditional prop rods with simpler and safer operation. It relies on precision piston rods and nitrogen-pressurized tubes to deliver steady linear movement while opening the hood. It cuts manual lifting effort for large hoods, removes bulky internal support rods, and prevents unexpected hood closure triggered by wind or mechanical faults. It also keeps stable operation during regular vehicle maintenance.
These hood struts are built to operate under tough field conditions. The main features are listed below:
Smooth and silent operation — Built-in hydraulic end-position damping prevents sudden drops or aggressive pop-ups.
Anti-rust protection — QPQ (salt-bath nitriding) piston rod treatment delivers wear and corrosion resistance.
Weatherproof sealing — Reliable sealing stops oil and gas leakage throughout the product service life.
Maintenance-free design — Self-lubricating construction requires no servicing over the whole service life.
Wide thermal stability — Performance stays stable from -40°C to +80°C for use in extreme climates.
Tool-free installation — Pre-fitted ends allow direct swap without special equipment.
Pair replacement is always recommended. Replacing both struts at the same time maintains even load distribution and avoids hinge twisting or premature wear on the new unit.

| Parameter | Details |
|---|---|
| Vehicle Fitment | OEM vehicle-specific fit |
| Tube Material | Seamless steel tube |
| Piston Rod Material | QPQ-treated steel rod |
| Working Temperature | -40°C ~ +80°C |
| Gas Medium | Inert nitrogen |
| Damping Type | Hydraulic end-position damping |
| MOQ | 50 units per order |
| Certifications | IATF 16949, ISO 9001 |
| Customization | Length, force value, connectors, branding, packaging |
Selection of Engine Hood Gas Strut depends heavily on working environments and installation requirements. These products serve three main application fields:
Heavy-Duty Commercial Vehicles: Trucks and buses are fitted with heavy hood assemblies. High-force struts enable easy access and withstand high-frequency vibration from diesel engines.
Passenger and Luxury Vehicles: Dynamic damping and smooth-stop function create steady hood movement. This suits OEM assembly for higher-end automobile lines.
Off-Road and Agricultural Machinery: Dust covers and protective sleeves preserve performance against mud, debris and high-pressure washing. The hood remains locked open even on uneven ground.
Juxiang also supplies gas springs for high-speed rail, premium furniture, medical equipment and aircraft beyond automotive applications.

Before shipment, every batch goes through testing. Test items include cycle life tests of 30,000–50,000 extension/compression cycles, 240-hour salt spray tests per ASTM B117, force curve checks against OEM specifications, thermal cycling pressure tests with a 5% pressure loss limit, and helium leakage inspections. All tests meet ISO 9001 and IATF 16949 requirements for bulk orders.

We implement full-process production control from raw material processing to finished product inspection. Our 100-member team supports stable production and timely communication. We offer flexible OEM/ODM customization on product parameters and packaging. The 50-unit MOQ supports small-batch trial orders for distributors, with stable export channels covering global markets.

Q1: Why do hood struts lose strength in cold weather?
A: Gas pressure changes with temperature. Our struts are pre-charged to limit force variation within the rated temperature range.
Q2: Should both struts be replaced together?
A: Yes. Replacing them as a pair maintains balanced load distribution and reduces the risk of hinge damage and early wear.
Q3: How can seal failure be identified?
A: Oil marks on the piston rods or slow hood sagging after opening indicate seal damage and call for replacement.
Q4: Can one strut fit multiple vehicle models?
A: No. Each strut is calibrated for a specific hood weight and gravity. An incorrect fit can cause installation problems and safety risks.
Q5: What custom options are available for bulk orders?
A: We can adjust length, force value, connectors, surface finish, branding, and packaging for bulk purchases.
Ready to source reliable hood struts for your vehicle lineup with Engine Hood Gas Strut? Reach out at jx@jxgasspring.com — the team is ready to discuss your specifications.