SL-9 Slam Specialties Air Bag – 200 PSI, Single 1/2" Port – 9″ Diameter Heavy-Duty Rebuildable Air Spring

When you need maximum lift, strength, and durability from your air suspension setup, the SL-9 Slam Specialties Air Bag is the powerhouse solution. Designed for the most demanding custom builds, heavy-duty trucks, and specialty vehicles, this massive 9-inch diameter air spring delivers unmatched air volume and load-handling capabilities while maintaining a smooth, controlled ride.

Proudly designed and manufactured in the USA, the SL-9 represents the pinnacle of Slam Specialties engineering—combining heavy-duty performance, a non-ballooning design, internal bumpstops, and full rebuildability for long-term use.

SL-9 Slam Specialties Air Bag – Technical Specifications

• 9″ Diameter Bag – The largest size in the Slam Specialties SL Series, delivering the highest air volume and lift potential.

• Single 1/2" NPT Port – Maximizes airflow for rapid lifting and lowering.

• Rated @ 200 PSI – Engineered for heavy-duty performance.

• 6061-T6 CNC Machined Aluminum NPT Port – Precision-machined for durability and leak-free operation.

• (2) 6061-T6 Aluminum 3/8-16 Mounting Inserts (Upper Plate) – Strong, rust-resistant mounting hardware.

• (3) 6061-T6 Aluminum 3/8-16 Mounting Inserts (Lower Plate) – Secure, stable mounting design.

• Collapsed Height: 3.75″ – Low enough for ultra-aggressive stance applications.

• Maximum Height: 14.5″ – Provides exceptional clearance for driving conditions or obstacle navigation.

• Non-Ballooning Design – Maintains shape under load for improved handling and appearance.

• Internal Bumpstops – Prevents over-compression and protects your suspension investment.

• Sold Individually – Purchase only the number of bags you need.

• Made in the USA – Slam Specialties quality you can trust.

Why Choose the SL-9 Air Bag?

The SL-9 isn’t just bigger—it’s better for applications where weight capacity and lift range are critical. Compared to smaller models like the SL-6, SL-7, and SL-8, the SL-9’s massive 9-inch diameter provides:

• Greater air volume for heavier vehicles

• Improved load leveling for towing applications

• More dramatic stance changes for show builds

• Better ride quality on large trucks and SUVs

Whether you’re lowering a full-size diesel truck, customizing a heavy-duty show rig, or setting up a specialty hauler, the SL-9 delivers the flexibility, lift, and control you need.

Fully Rebuildable – Save Money Over Time

The SL Series is known for its rebuildable design. Instead of replacing the entire bag when the rubber bellow reaches the end of its lifecycle or sustains damage, you can replace just the bellow for less than half the price of a full replacement air bag.

This means:

• Lower long-term ownership costs

• Less downtime for repairs

• Eco-friendly waste reduction

Replacement bellows and rebuild kits are available at Gauge-Store.com so you can keep your SL-9 operating like new for years.

Performance Benefits of the SL-9 Air Bag

1. Extreme Load Capacity – Perfect for larger vehicles, towing setups, and heavy-duty custom builds.

2. Max Lift Range – 14.5 inches of expansion allows for versatile stance control.

3. Consistent Shape Under Load – Non-ballooning design prevents lateral bulging, improving performance and aesthetics.

4. Durable Construction – CNC-machined aluminum components resist corrosion and wear.

5. Smooth, Controlled Ride – Internal bumpstops protect against harsh bottoming out.

6. Fast Airflow Response – The large 1/2" port ensures quick adjustments.

Recommended Pairings & Install Accessories

For best results, pair your SL-9 Slam Specialties Air Bag with high-quality air suspension components available from Gauge-Store.com:

• Air Bag Mounting Brackets – Ensure correct installation geometry.

• DOT-Approved Air Line & Fittings – Maintain safety and reliability.

• VIAIR Compressors – Ensure you can fill large-volume bags quickly.

• Slam Specialties Replacement Bellows – Keep your SL-9 operating at peak performance.

 Installation Considerations

• Ensure adequate clearance at full extension and compression.

• Use proper brackets to maintain correct mounting geometry.

• Verify your air management system can deliver enough volume to maximize the SL-9’s capabilities—dual VIAIR compressors are highly recommended.

• Always check for safe operating pressure—do not exceed 200 PSI.

Proudly Made in the USA

Slam Specialties builds every SL-9 right here in the United States, using premium materials and expert craftsmanship. Their commitment to innovation and quality has made them a leader in the air suspension industry, trusted by professional builders, custom shops, and performance enthusiasts worldwide.

Order Your SL-9 Slam Specialties Air Bag Today

If you need maximum performance, reliability, and serviceability, the SL-9 Slam Specialties Air Bag is the heavy-duty air spring you’ve been waiting for. Its 9-inch diameter, 200 PSI capacity, and rebuildable design make it ideal for serious builders who demand the best.

Order Now: SL-9 Slam Specialties Air Bag – Gauge-Store