Rear Suspension Strut for 1977-1983 BMW 320i - KYB KG9004

$88.99

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$88.99

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Part number: KG9004

UPC: 781552090045

KYB Suspension Strut P/N:KG9004

$88.99

Description

Keep your rear suspension composed and control body motion with the KYB Gas-a-just Suspension Strut KG9004, a high-pressure monotube gas strut offered as a rear-position, OE monotube replacement to help restore your vehicle's original capabilities. It fits the 1977-1983 BMW 320i — see the "Vehicles it fits" section for engine details.

Two separate working chambers: an air-free hydraulic piston and valve area for responsiveness and control, plus a high-pressure nitrogen gas area with a floating piston for a comfortable ride during normal driving and added performance on demand.
Fade-free monotube: the high-pressure design separates the gas and oil, so it doesn't experience fade due to aeration and responds instantly.
Triple chrome-plated piston rod: since fluid leaking can be a cause of shock failure, the ultra-smooth rod is designed to reduce seal wear.
Tuned damping: adds up to 25% more damping over original-equipment shocks, with components and valving designed specifically for the BMW 3 Series.

The Gas-a-just is also designed to help keep Electronic Safety Systems performing as intended, since these systems depend on the suspension, brakes and tires. Protect your new struts from dirt, debris and salt with a KYB Strut Boot, part number SB113.

Interchange: G51007 · 71319

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

G51007, 71319

Buyer's Q&A

Frequently Asked Questions

What vehicle does the KG9004 fit?

It is listed as a rear-position replacement strut for the 1977-1983 BMW 320i. Check the "Vehicles it fits" section and confirm fitment for your specific vehicle before ordering.

What is a monotube gas strut?

It uses two separate working chambers: an air-free hydraulic piston and valve area for control, plus a high-pressure nitrogen gas area with a floating piston, keeping gas and oil separated for fade-free operation.

How does it differ from a twin-tube design?

The KYB Gas-a-just monotube separates the gas and oil, so it doesn't experience fade due to aeration and can respond instantly, adding performance on demand during driving.

Does this strut include a boot?

No boot is listed with this strut. KYB offers a separate KYB Strut Boot, part number SB113, to help protect your new struts from dirt, debris and salt.

How much damping does it add?

KYB states the Gas-a-just adds up to 25% more damping performance over original-equipment shocks, with components and valving designed specifically for the BMW 3 Series.