RETRUE Air Bag Replacement for Firestone 2500 lbs Air Spring

Replace worn or damaged air springs with the RETRUE Firestone 6397 replacement air bags, designed to restore towing stability, rear support, and ride control. This double bellows air bag suspension part helps reduce squat, sway, bottoming out, and bounce when towing RVs, campers, trailers, boats, or hauling cargo.

2,500 lbs Load Leveling Capacity:
Supports rear suspension performance under load and helps maintain proper ride height for safer towing and hauling.

Adjustable 5–100 PSI Pressure:
Fine-tune firmness based on cargo weight, trailer tongue load, and road conditions for better control.

Double Bellows Air Spring Design:
Reinforced dual-bellow construction improves shock absorption, weight distribution, and air suspension kit performance.

Durable Replacement Construction:
Heavy-duty rubber and corrosion-resistant metal end caps deliver reliable air suspension air bags support.

Direct Replacement Fit:
Compatible with Firestone 6397 air spring suspension systems and includes fitting and mounting hardware.

Replacement Reference: Firestone 6397

Compatible Firestone Air Spring Kit Models: 2430, 2609, 2625, 2628, 2627, 2350, 2599

Other Kit Models: Not Compatible

Product Type: Single Replacement Air Spring

Package Quantity: 1 Air Spring

Air Spring Design: Double-Bellows

Operating Pressure: 5–100 PSI

Upper Thread: 5/8-18 UNF

Lower Thread: 3/8-16 UNC

Upper Mounting Bracket: Not Included

Lower Mounting Bracket: Not Included

Air Fitting: Included

Mounting Hardware: Included as Listed

Air Line: Not Included Unless Separately Specified

Fitment Requirements: Verify Existing Kit Model, Thread Sizes, Mounting Arrangement, and Air Spring Dimensions

Fitment Note: This product is a replacement component for specified compatible air spring kits, not a universal replacement for all truck air suspension systems. Verify your existing kit number before purchase.

Shipping:
We ship our products primarily through USPS/UPS. All items will be shipped within 72 business hours upon receipt of payment (except Saturday and Sunday). Orders placed on weekend will be shipped within 4 days.

Returns:
Items purchased from RETRUE may be returned in original unused condition within 30 days from the date of purchase for a refund, to the original form of payment. All returns must be pre-approved by RETRUE. Otherwise, unauthorized returns will not be accepted.

Warranty: Air Springs: Limited Lifetime
Hardware & Brackets of Air Springs: 2 Years
Bumpers, Hardware, Fittings & Air Line of Air Accessories: 2 Years
Hardware & Brackets of Air Accessories: 1–2 Years (depending on model; view product warranty documents for details)

Product Type: Replacement Air Spring

Product Model: RAK6397

Replacement Reference: Firestone 6397

Compatible Kit Models: Firestone 2430, 2609, 2625, 2628, 2627, 2350, 2599

Package Quantity: 1 Air Spring

Air Spring Design: Double-Bellows

Construction: Rubber Bellows with Metal Mounting Plates

Operating Pressure: 5–100 PSI

Upper Thread: 5/8-18 UNF

Lower Thread: 3/8-16 UNC

Bead Plate Diameter: 4.37 Inches (111 mm)

Uninflated Width: 5.78 Inches (147 mm)

Uninflated Height: 5.5 Inches (139.7 mm)

Fully Inflated Width: 6.50 Inches (165 mm)

Fully Inflated Height: 6.5 Inches (165.1 mm)

Included Components: 1 Air Spring, 1 Air Fitting, and Listed Mounting Hardware

Upper Mounting Bracket: Not Included

Lower Mounting Bracket: Not Included

Air Line: Not Included Unless Separately Specified

Application: Replacement for Compatible Existing Air Spring Systems

Q1: What is a Firestone 6397 air spring replacement used for?
A: A Firestone 6397 air spring replacement is used to restore worn or damaged air suspension components. It helps maintain proper air pressure, improve load support, and restore suspension performance for compatible vehicles.

Q2: How do I know if my air suspension spring needs replacement?
A: Common signs of a damaged air spring include air leaks, uneven vehicle height, reduced load support, excessive suspension sag, and poor towing stability.

Q3: Can I replace only one air spring on my truck?
A: Yes. A single air spring can be replaced if only one side is damaged. However, inspecting both sides is recommended to ensure balanced suspension performance.

Q4: Does this air spring replacement include installation hardware?
A: Yes. This replacement air spring includes an air fitting and bolts, providing the necessary components for easier installation.

Q5: How much weight can a 2500 lbs air spring support?
A: A 2500 lbs air spring provides additional suspension support for towing, hauling, and load leveling applications. It helps reduce rear sag while carrying heavier loads.