July 17, 2023 NHTSA CAMPAIGN NUMBER: 23V490000
An axle that moves out of position can cause a loss of vehicle control and increase the risk of a crash.
NHTSA Campaign Number: 23V490
Manufacturer Grand Design RV
, LLC
Components SUSPENSION
Potential Number of Units Affected 6,270
Summary
Grand Design RV, LLC. (Grand Design) is recalling certain 2021-2024 Momentum and Solitude fifth wheels, equipped with certain CURT 7000 and 8000 lb axles. The U-bolts may have been improperly tightened, which can cause the axle to move out of position.
Remedy
Dealers will inspect and tighten the U-bolts, as necessary. Any damaged components will be replaced. Repairs will be performed free of charge. Owner notification letters are expected to be mailed August 16, 2023. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design’s number for this recall is 910039.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Chronology :
- January 20, 2023 – Grand Design receive reports of two axle failures where the spring appeared to separate on the axle, allowing the axle to shift location.
- March 14, 2023 – Grand Design notified Lippert Components (LCI) of additional complaints regarding failed leaf springs on Curt axles. Grand Design contracted third party for testing of tie plates and leaf springs.
- March 17, 2023 – Grand Design met with LCI to discuss testing results. It was determined further testing was required.
- April 13, 2023 – Grand Design was advised by LCI to increase U-bolt torque to 80 ft. lb.
- May 25, 2023 – LCI recommended increasing end of line torque to 90 ft. lbs.
- June 15, 2023 – Grand Design met with LCI to review test results and known field incidents on CURT axles.
- July 7, 2023 – Received formal notification of Lippert recall 23E-050.
- July 11, 2023 – Grand Design Product Safety Review Committee met and affirmed scope for impacted CURT axle springs.
Grand Design is aware of 45 incidents starting in January 2023 to June 2023. Two of the incidents resulted in an accident. Grand Design is not aware of any injuries as a result of this condition.
23E050 – Improperly Tightened U-Bolt – Curt 7000 & 8000 lb Axles
http://oemdtc.com/14081/23e050-improperly-tightened-u-bolt-curt-7000-8000-lb-axles
8 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| GRAND DESIGN | MOMENTUM | 2021-2024 |
| GRAND DESIGN | SOLITUDE | 2021-2024 |
2 Associated Documents
Recall Acknowledgement
Defect Notice 573 Report
RCLRPT-23V490-1149.PDF 216.533KB
Latest Recalls Documents
- PRECISE & HIGH QUALITY - Manufactured in Taiwan, our torque wrench is engineered for superior precision. It ships pre-calibrated to +/- 4% accuracy, ensuring dependable results every time. Includes a calibration certificate with a trackable serial number for your assurance.
- DURABLE - Built to last, featuring a reinforced ratchet gear head made from hardened, heat-treated Chrome Vanadium alloy steel for maximum strength and durability.
- LONGEVITY - Protect your investment with our proprietary Electro-Black finish, providing advanced rust and corrosion resistance for extended tool life.
- PERFORMANCE - Easily read and set torque levels with our patent-pending dual-range scale. The high-contrast, yellow-on-black markings are designed for easy visibility, even in low-light conditions.
- OMFORT - Equipped with a reversible ratchet head that drives in both directions and measures torque in a clockwise direction. The ergonomic, knurled handle ensures a non-slip, comfortable grip, reducing hand fatigue.
- Durable Ratchet Head: Made from Hardened treated Chrome Vanadium steel alloy (Cr-V) Corrosion-Retardant: Satin Finish. Made in Taiwan
- Easy Storage: A sturdy plastic storage case is included. Non-Slip Grip: Knurled handle
- Easy to Read: High Contrast & Dual Range Scale. Accurate: Pre-Calibrated to ± 4%
- Accessories included: 1/2" Drive 5" long Extension Bar
- Simple and Reliable: “Click” sound tells the preset torque value is reached. Stop applying force when you hear and feel it.
- 【Precise Torque Control｜±3% High Accuracy】 HERONIX 3/8 torque wrench provides a working torque range of 5–50 Ft-Lb (6.8–67.8 Nm), ideal for precise mechanical adjustments. Each torque wrench 3/8 drive is factory-calibrated to ±3% accuracy and verified through extensive testing to ensure consistent performance. Perfect for spark plugs, bike components, and automotive repair.
- 【Laser-Etched Dual Scale｜Clear & Easy to Read】 This mini torque wrench features high-contrast laser-etched Ft-Lb and Nm scales on a durable black surface, ensuring excellent readability in any lighting environment. Quick, accurate torque settings help improve efficiency for every repair task.
- 【Audible Click Feedback｜Crisp & Noticeable Sound】 When your preset torque is achieved, the HERONIX torque wrench produces a sharp, clear “click” sound (≈45 dB) you can hear and feel—eliminating guesswork and preventing over-tightening. Reliable feedback for both beginners and professionals.
- 【Compact 72-Tooth Design｜Smooth & Reversible】 Equipped with a 72-tooth reversible ratchet head, this small torque wrench supports both clockwise and counterclockwise operation. The compact 3/8 torque wrench head, quick-release mechanism, and ergonomic anti-slip handle make it ideal for tight spaces such as engine bays, bike frames, and underbody repairs.
- 【Multi-Scene Compatibility｜For Bike, Motorcycle & Car】 With its versatile torque range, this nm torque wrench is suitable for bicycles, motorcycles, spark plugs, automotive components, machinery assembly, and more. Whether working in your garage or performing on-road adjustments, HERONIX delivers the dependable performance every mechanic and DIY user can trust.
- [MATERIAL] SUZUME torque wrenches are made of CR-V steel to ensure the durability of the torque wrench. The surface is also chrome-plated, which not only improves corrosion and wear resistance, but also gives the torque wrench set automotive a mirror-like luster, adding a touch of eye-catching beauty. For the handle, we chose a lightweight aluminum alloy, whose low-density characteristics greatly reduce the overall weight of the tool, making it easier to operate.
- [HIGH ACCURACY] The SUZUME 3PCS torque wrench set multiple sizes, covering torque wrench 1/2 drive,torque wrench 3/8 drive and 1/4 torque wrench, is each a commitment to superior workmanship. After rigorous fatigue testing, this torque wrench kit can withstand more than 10,000 repeated uses and still maintain an ±3% accuracy, which means you can use them with confidence and without worrying about re-calibration.
- [LOUD CLICK] SUZUME torquimetro are designed with a bi-directional ratchet head that makes it easy to apply precise torque, whether you operate the wrench clockwise or counterclockwise. When your operation reaches the preset torque value, the wrench will immediately emit a clear "click" sound, accompanied by a vibration, to ensure that you can sense and stop the operation at the first time, avoiding damage to bolts, nuts and even torque wrench' due to excessive application of force.
- [Dual-Scales] SUZUME strives for perfection in every detail of every product. This 6-piece torque wrench set includes: 1/2” torque wrench (10–170 ft.lb / 13.6–230.5 N.m), 3/8” torque wrench (5–45 ft.lb / 6.8–61 N.m), 1/4” torque wrench (20–220 in.lb / 2.3–24.9 N.m), plus 1/2” extension bar (5"), 3/8” extension bar (6") and 1/4” extension bar (4"). Every click torque wrench is equipped with a clearly visible torque scale that makes setting and reading torque values effortless. We use laser printing technology to ensure the durability of these scales, so you don't have to worry about the values becoming blurred by wear and tear, even under frequent use over a long period of time.
- [IDEAL PRESENT] Imagine a torque wrench set that can easily handle the repair needs of bicycles, motorbikes and cars! The SUZUME torque wrenches is just the solution you need. Whether you're tightening loose screws or performing complex mechanical repairs, this set is the ideal present for your father, husband or son, showing your support and understanding of their hobbies. Help him solve every challenge with ease
- PRECISION - Ships pre-calibrated to +/- 4% accuracy and ready to use. Include calibration certificate with traceable serial number.
- DURABLE - Reinforced ratchet gear head constructed from hardened, heat treated Chrome Vanadium alloy steel.
- LONG-LASTING - Rust & corrosion protection with our unique and newly invented Electro-Black finish treatment.
- PERFORMANCE - Features an easy-to-read, highlighted yellow print dual-range scale. Identify the markings even in low-light conditions.
- COMFORTABLE - Comes with a reversible ratchet head that drives in both directions and measure torque in a clockwise direction.
SEOCONTENT-START
OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-490 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Grand Design RV, LLC Submission Date : JUL 17, 2023 NHTSA Recall No. : 23V-490 Manufacturer Recall No. : 910039 Manufacturer Information : Manufacturer Name : Grand Design RV, LLC Address : 11333 County Road 2 Middlebury IN 46540 Company phone : (574) 825-8000 x2015 Population : Number of potentially involved : 6,270 Estimated percentage with defect : 5 % Vehicle Information : Vehicle 1 : 2021-2024 Grand Design RV Momentum & Solitude Vehicle Type : TRAILERS Body Style : Power Train : NR Descriptive Information : The population was established by production units equipped with 7k & 8k CURT by Lippert axles. Products not included in the recall are a different size axle or have corrected torque specification. There are 6,270 affected units. Production Dates : FEB 12, 2021 – JUN 22, 2023 VIN Range 1 : Begin : 573FM4531M1119127 End : 573FM4025P1124415 ✔ Not sequential VIN Range 2 : Begin : 573FM4224P1218797 End : 573FM4233R1220049 ✔ Not sequential VIN Range 3 : Begin : 573FS4320NAA10632 End : 573FS4324RAA16309 ✔ Not sequential VIN Range 4 : Begin : 573FM4635PBB00001 End : 573FM4127RBB01426 ✔ Not sequential Description of Defect : Description of the Defect : Lippert has determined the defect exists with a combination of U-bolt torque specification and dynamic load on the leaf spring. The leaf spring pack can fail under dynamic load. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : An insufficiently tightened U-bolt could allow the leaf spring to fail and the axle to slip out of position. An axle shifting during transit could increase the chance of injury or crash. Description of the Cause : Lippert U-bolt torque specifications did not provide adequate clamp load on the leaf springs to withstand normal dynamic load. Identification of Any Warning that can Occur : Visual inspection of the leaf spring will show shifting of the leaves within the spring stack. Wheel spacing may be different from roadside to curbside, and/or tire interference with body features may be noticed. Part 573 Safety Recall Report 23V-490 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Involved Components : Component Name 1 : CURT ABS 7000# Axle Assembly Component Description : AXLE ABS 7000# CURT 90 1/2″-74 1/2 BRONZE 30PT Component Part Number : 120311 Component Name 2 : CURT ABS 7000# 8 LUG Axle Assembly Component Description : AXLE CURT ABS 7000# 8 LUG OVERSLUNG UPGRADED TUBE/SPRINGS BRONZE BUSHING EZ LUBE 30SPT Component Part Number : 120333 Component Name 3 : CURT ABS 8000# Axle Assembly Component Description : AXLE ABS 8000# CURT 90 1/2-74 1/2 BRONZE Component Part Number : 120372 Component Name 4 : CURT 7000# Axle Assembly with disc brakes Component Description : AXLE 7000# W/DISC BRAKES Component Part Number : 120303 Component Name 5 : CURT 8000# Axle Assembly with disc brakes Component Description : AXLE 8000# W/DISC BRAKES CURT Component Part Number : 120304 Supplier Identification : Component Manufacturer Name : Lippert Components Address : Attn: Pamela VanderMel PO Box 2888 Elkhart Indiana 46515 Country : United States Part 573 Safety Recall Report 23V-490 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Chronology : • January 20, 2023 – Grand Design receive reports of two axle failures where the spring appeared to separate on the axle, allowing the axle to shift location. • March 14, 2023 – Grand Design notified Lippert Components (LCI) of additional complaints regarding failed leaf springs on Curt axles. Grand Design contracted third party for testing of tie plates and leaf springs. • March 17, 2023 – Grand Design met with LCI to discuss testing results. It was determined further testing was required. • April 13, 2023 – Grand Design was advised by LCI to increase U-bolt torque to 80 ft. lb. • May 25, 2023 – LCI recommended increasing end of line torque to 90 ft. lbs. • June 15, 2023 – Grand Design met with LCI to review test results and known field incidents on CURT axles. • July 7, 2023 – Received formal notification of Lippert recall 23E-050. • July 11, 2023 – Grand Design Product Safety Review Committee met and affirmed scope for impacted CURT axle springs. Grand Design is aware of 45 incidents starting in January 2023 to June 2023. Two of the incidents resulted in an accident. Grand Design is not aware of any injuries as a result of this condition. Description of Remedy : Description of Remedy Program : On affected vehicles, the dealer will verify the U-bolt torque is at 90 ft.lbs. Any damaged, non functioning components will be replaced at no cost to the customer. Owner’s that have paid to have this service performed will be reimbursed by Grand Design for any expenses incurred relating to this defect. How Remedy Component Differs from Recalled Component : Remedied components are verified with the correct U-bolt torque value of 90 ft. lb’s at final stage production. Identify How/When Recall Condition was Corrected in Production : The issue with U-bolt torque was remedied in production by adding an additional check of U-bolt torque in the final stage of production. Each Ubolt is verified to have the supplier recommended torque value of 90 ft. lbs. Recall Schedule : Description of Recall Schedule : Owners of affected vehicles will be notified by First Class mail that their vehicle is affected by the recall. In addition, we will post recall information electronically for consumer access. Dealers will be notified of the recall action (by First Class mail & electronically) and will be supplied with repair information and vehicle identification information. Planned Dealer Notification Date : AUG 11, 2023 – AUG 11, 2023 Planned Owner Notification Date : AUG 16, 2023 – AUG 16, 2023 * NR – Not Reported
**************************************************************************************************************
**************************************************************************************************************
**************************************************************************************************************
**************************************************************************************************************
SEOCONTENT-END
This product presentation was made with AAWP plugin.