NHTSA ID Number: 10187391
Manufacturer Communication Number: 20NA030
Summary
This service bulletin provides a procedure to correct a customer concern of Rear Air Suspension Inoperative.
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| CHEVROLET | SILVERADO 4500HD | 2019 |
Parts Information
| Causal Part | Description | Part Number | Qty |
| X | SPRING, RR AIR | 19407642 | 2 |
| N/A | ABSORBER, RR SHK | 19408176 | 2 |
|
|
SEOCONTENT-START
Service Bulletin Bulletin No.: 20-NA-030
Date: December, 2020
TECHNICAL
Subject: Rear Air Suspension Inoperative
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Chevrolet Silverado 4500HD,
5500HD and 6500HD 2019 2020
Involved Region or Country North America
Additional Options (RPOs)
G40 (SUSPENSION REAR-12,000 LB, AIR)
GP1 (SUSPENSION REAR-13,500 LB, AIR)
GP8 (SUSPENSION REAR-15,500 LB, AIR)
Condition Some customers may comment that the rear of the truck sits low, or air suspension will
not properly inflate.
Cause This condition may be caused by the rear air spring coming off the lower mount when
lifting/removing weight off rear axle.
Correction If it has been verified that the rear air spring has come off the rear mount, replace both
rear air springs and the shock absorbers.
Service Procedure
Refer to Air Spring Replacement in SI.
Refer to Rear Shock Absorber Replacement (With Air
Springs) in SI.
Parts Information
Causal
Part
Description Part
Number
Qty
X SPRING, RR AIR 19407642 2
N/A ABSORBER,
RR SHK
19408176 2
Page 2 December, 2020 Bulletin No.: 20-NA-030
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
8000021 Rear Air Spring Replacement – Both Sides Use the Published Labor
8044751 Rear Shock Absorber Replacement – Both Sides Operations Time
Version 1
Modified Released November 30, 2020
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 20-NA-030
Date: December, 2020
MC-10187391-9999.pdf 497.683KB
- Vehicle Compatibility - RETRUE Air bags rear suspension kit for 2011-2026 Chevrolet Chevy Silverado 2500HD 3500HD, GMC Sierra 2500HD 3500HD 2WD 4WD, perfect replacement for the Firestone Ride-Rite 2613 kit
- Air Ride Suspension Kit - Offering an impressive load-leveling capacity of up to 5,000 pounds, increase spring rate more effectively than traditional or original, reduce the amount of shock and vibration, improve vehicle stability to provide a safer and more comfortable ride
- Effortless Installation - Our air spring bag kit features pre-drilled holes and no drill required, ensuring a hassle-free installation process. With included comprehensive instructions and labeled parts, just turn on some tunes and have a blast with the install. Tips: automated tools will speed it up
- Customized Air Pressure - Allows you to fine-tune the air bags pressure from 5 to 100 psi, levels vehicle front-to-rear and side-to-side for optimal balance and ride comfort
- Reliable Customer Support - At RETRUE, customer satisfaction is our top priority. Rest assured that we stand behind our products with unwavering confidence. If you have any questions or concerns, our dedicated support team is here to assist you every step of the way. Your satisfaction is guaranteed.
- Vehicle Compatibility - RETRUE Air bags rear suspension kit for 2007 to 2018 Chevy Silverado 1500 and GMC Sierra 1500 2WD 4WD (Not High Country and Not Denali models, Year 2015-2018), 2019 Silverado 1500 Light Duty "LD" Model Only, perfect replacement for the Firestone Ride-Rite 2430 kit
- Air Ride Suspension Kit - Offering an impressive load-leveling capacity of up to 5,000 pounds, increase spring rate more effectively than traditional or original, reduce the amount of shock and vibration, improve vehicle stability to provide a safer and more comfortable ride
- Effortless Installation - Our air spring bag kit features pre-drilled holes and no drill required, ensuring a hassle-free installation process. With included comprehensive instructions and labeled parts, just turn on some tunes and have a blast with the install. Tips: automated tools will speed it up
- Customized Air Pressure - Allows you to fine-tune the air bags pressure from 5 to 100 psi, levels vehicle front-to-rear and side-to-side for optimal balance and ride comfort
- Reliable Customer Support - At RETRUE, customer satisfaction is our top priority. Rest assured that we stand behind our products with unwavering confidence. If you have any questions or concerns, our dedicated support team is here to assist you every step of the way. Your satisfaction is guaranteed.
- Upgraded replacement - this air compressor replaces and improves on the original part for certain Cadillac, Chevrolet and GMC vehicles
- Enhanced technology - features advanced thermal protection software to prevent future burn out
- More durable - addition of protective membrane prevents moisture intrusion
- Complete repair - brackets, dryer, air filter boxes, sealed sound isolation shielding, wiring harness and connectors included
- Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle
- FEATURE - Air Spring Bag Suspension Kit are a component used in suspension systems, often in place of traditional metal springs. They adjust the height and stiffness of a vehicle's suspension by inflating or exhausting the air to provide a more comfortable ride and better suspension performance. Automotive air springs are commonly used in vehicles such as large trucks, buses, SUVs and high-end sedans.
- MATERIALS - The air spring bag is made of durable rubber material, which is more durable than ordinary gas spring, with better compression and load performance, longer service life, and provide you with a better driving experience after replacement.
- REPLACES OEM NUMBER - TOW-GM9906 Up to 5000 lbs of Load leveling capacity. (Note: Each air spring bags assembly is thoroughly tested to make sure OE fit)
- APPLICABLE MODELS & YEARS - Our air suspension spring bag is compatible with 1999-2007 Chevy Silverado 1500 2WD/4WD, 1999-2007 Chevy Silverado 1500 Classic 2WD/4WD, 1999-2007 GMC Sierra 1500 2WD/4WD, 1999-2007 GMC Sierra 1500 Classic 2WD/4WD. ( NOTE: will not fit trucks that have been lowered any in the rear )
- EASY TI INSTALL - We provide detailed installation instructions with clear steps and a complete list of tools, step-by-step operation can easily complete the installation of air bags for modified cars.
- Not compatible with vehicles equipped with Adaptive Ride Control.
- Compatibility- DEEAGLE air bags suspension kit is compatible with 2019 2020 2021 2022 2023 2024 2025 2026 chevrolet silverado 1500, gmc sierra 1500.
- Ease of Installation- Our air bags comes with pre-drilled holes and requires no drilling, making the installation process straightforward and easy. Every airbags kit is equipped with clear instruction and labeled parts
- Custom Air Pressure- You can fine-tune the airbag pressure within the range of 5 to 100 psi to adjust the vehicle’s front-to-rear and side-to-side levels, ensuring optimal balance and ride comfort
- Functionality- If you’ve experienced these issues, you understand the impact of squat. This air suspension kit offers remarkable load leveling capacity of up to 5,000 pounds, improving spring rates more effectively than traditional or factory springs, while reducing impacts and vibrations and enhancing vehicle stability
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