Auto Gear Heavy Duty Coil Spring Compressor Set 5/8" x 300mm (1500kg) - CSC2

Product Details & Application

This Auto Gear heavy-duty coil spring compressor set (SKU CSC2) is a 2-piece clamp tool for safely compressing coil springs during shock absorber, strut, and suspension service. Each clamp uses a 5/8" (16 mm) diameter threaded bar with a 300 mm working length and a combined tension rating of up to 1500 kg. The set is supplied as a pair - use both clamps together on opposite sides of the spring for balanced compression. Always wear eye protection when using any coil spring compressor.

Key Details

SKU

CSC2

Brand

Auto Gear

MPN

CSC2

Component

Coil Spring Compressor Set (workshop tool)

Quantity

2 pieces (pair)

Thread Bar

5/8" (16 mm) x 300 mm

Tension Capacity

1500 kg (combined)

Use

Shock absorber, strut, and suspension coil spring service

Key Benefits

• Heavy-duty 1500 kg tension capacity handles the compression force of passenger vehicle and light commercial coil springs safely.
• Supplied as a 2-piece matched set - use both clamps on opposite sides of the spring for balanced compression, preventing the spring from cocking sideways under load.
• 300 mm working length accommodates most passenger vehicle front coil springs and MacPherson strut assemblies.
• 10 mm incremental markings on the package diagram help you compress the spring predictably and evenly.

Typical Applications

• Shock absorber replacement on vehicles with coil-over-shock suspension
• MacPherson strut assembly and disassembly (front suspension on most modern passenger cars)
• Coil spring replacement (original, aftermarket, or lowering springs)
• Upper strut mount and bearing replacement
• Suspension refurbishment and restoration work

Product Specifications

How to Use

1. Prepare the vehicle. Loosen wheel nuts, raise the vehicle on jack stands rated for the vehicle weight, and remove the wheel. Disconnect any components blocking access to the strut or shock assembly.
2. Remove the strut/shock assembly from the vehicle following the workshop manual procedure. Keep the spring in its natural uncompressed position until you are ready to compress it in a controlled environment (ideally clamped in a sturdy workbench vice or held securely).
3. Inspect the spring for damage, corrosion, or breakage. Do NOT compress a damaged spring - replace it instead.
4. Position the two clamps on opposite sides of the spring, 180 degrees apart. The hooks should capture 3-4 coils each. Align the clamps as symmetrically as possible.
5. Begin compression by turning each clamp's drive nut a few turns at a time, alternating between the two clamps. Keep compression even - one side should never be significantly further along than the other.
6. Monitor the spring as it compresses. Watch for signs of slipping or cocking sideways. If the spring is slipping, STOP and reposition the clamps.
7. Compress until the spring is free of its seating surfaces on the strut/shock. Service the components as needed (replace upper mount, bearing, bump stop, etc.).
8. Reverse the process to release compression - alternate between the two clamps, releasing a few turns at a time on each side, keeping the release even.
9. Do not remove the clamps until the spring is fully seated in its natural uncompressed position against the upper and lower spring seats.
10. Reinstall the assembly and torque all fasteners to the vehicle manufacturer's specification. Check wheel alignment after completing the job.

What's Included

• 2 x coil spring compressor clamps (matched pair)
• Product packaging with compression-increment reference diagram

What's NOT Included

• Safety glasses or face shield - source separately before use
• Jack stands, trolley jack, or other vehicle lifting equipment
• Torque wrench or other hand tools
• Vice or work bench

Common Questions

Will this fit my vehicle's coil springs?
This is a universal coil spring compressor designed for most passenger vehicle and light commercial coil springs. The 300 mm working length and 1500 kg tension capacity accommodate most front MacPherson strut and rear coil spring assemblies. Heavy-duty commercial springs, 4x4 bakkie progressive springs, or performance racing springs may exceed these capacities - check the spring's compressed height against the 300 mm working length before ordering.

Do I need one set or two?
One set (the 2 clamps supplied together) is all you need for each spring. Use both clamps on opposite sides of the same spring - never use only one. If you are working on a vehicle with two front springs, you can do one side at a time with this single set.

Can I use this for MacPherson struts?
Yes - this is the most common application. MacPherson strut assemblies combine the coil spring and shock absorber into a single unit, and this compressor allows you to safely remove the coil spring for shock, upper mount, or bearing service.

Is this tool safe to use at home?
It can be used safely at home if you follow the safety warnings above. However, coil spring work is among the most dangerous DIY automotive tasks - read the full safety warning, wear eye protection, use both clamps simultaneously, and work carefully. If you are uncertain at any point, stop and have a workshop complete the job.

Will it work on lowering springs or performance springs?
Standard progressive-rate aftermarket lowering springs are usually within the 1500 kg capacity of this compressor. However, some performance / track springs have very high spring rates that may require higher-capacity professional equipment. If the spring is stiffer than an OE spring, check the spring rate before attempting compression.

Can I use an impact wrench on the compressor drive nuts?
No. Hand-tighten only using a ratchet or breaker bar. Impact tools can overtighten the drive nuts, damage the threads, or cause the clamp to fail unexpectedly under load. Controlled, manual tightening is safer and gives you feel for how the spring is responding.

What safety gear do I need?
Minimum: safety glasses (mandatory), work gloves, and sturdy closed-toe shoes. A face shield is recommended for additional protection. Jack stands rated for the vehicle weight, a proper trolley jack, and a workspace where the spring cannot fly into bystanders or damage property.

How long will this tool last?
With careful use and proper storage, a set like this typically lasts many years of occasional home use or regular professional workshop use. Inspect the clamps before each use for thread wear, hook damage, or corrosion. Replace if any damage is visible - do not attempt to repair a damaged spring compressor.

What if the compressor does not fit my spring?
Contact us. We may have alternative spring compressor tools (different length, different capacity, or different jaw style) more suitable for your specific application.