AAUW0 – Driver-Side Front Axle U-Bolts May Come Loose – 2022-2023 Hino NE7A, NE7B, NJ7A, NJ7B, NV7A, & NV7B

“This site contains affiliate links for which OEMDTC may be compensated”

June 29, 2023 NHTSA CAMPAIGN NUMBER: 23V456000

Driver-Side Front Axle U-Bolts May Come Loose

Loose or detached U-bolts can result in a loss of vehicle handling and control, increasing the risk of a crash.


NHTSA Campaign Number: 23V456

Manufacturer Hino Motors Sales U.S.A., Inc.


Potential Number of Units Affected 1,865



Hino Motors Sales U.S.A., Inc. (Hino) is recalling certain 2022-2023 NE7A, NE7B, NJ7A, NJ7B, NV7A, and NV7B vehicles. The driver-side U-bolts that secure the front axle to the leaf spring assembly may come loose and detach.



Dealers will tighten the front axle U-bolts, free of charge. Owner notification letters are expected to be mailed August 15, 2023. Owners may contact Hino customer service at 1-248-699-9390. Hino’s number for this recall is AAUW0.



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 of Defect Determination

August – October 2022

On August 9, 2022, Hino received a field technical report indicating that a customer has a truck where both U bolts on the driver side have fallen out of the front axle and were missing. The customer complained of steering drift. Hino inspected the collected parts but observed no obvious abnormalities. It also reviewed its front axle production process on its line at its WV plant for the dates of manufacture, but those records also did not show any inappropriate front axle torque values for any inspected vehicle. Hino began a detailed investigation.


November 2022

By November 21, Hino had identified a total of 7 field cases involving loose or missing U bolts. Hino issued a stop ship order at its WV assembly plant to inspect the tightening torque of U bolts and nuts for all inventory vehicles. In total, 1,136 units were inspected. Hino identified 14 vehicles that had front axle torque values below the inspection limit.1 From November 29, Hino started to confirm all vehicles meet the torque design specification before shipment.


December 2022 – March 2023

The inspection revealed 14 vehicles with torque below design specification, but no apparent root cause.  Accordingly, Hino continued its investigation. During the investigation, By the end of December, a total of eight similar field cases had occurred. Hino confirmed that all field events involved vehicles containing one 9 mm spacer between the driver side front leaf spring and front axle. Maintenance records of all the vehicles above were confirmed and there was no history of U bolt maintenance performed as instructed in the owner’s manual.

During vehicle inspection conducted in February 2023, Hino identified a small dent near the guide hole on the front axle upper surface and presumed the dent was generated by interference between the axle upper surface and tip of the center bolt. Hino started planning for bench testing to duplicate the interference and evaluate the effect to axial force of the U bolts.


April – June 2023

Based on detailed analysis of inventory vehicle torque inspection result, taking torque variation into consideration, the tightening torque could possibly reach the lowest limit in certain period of production.

Bench testing confirmed duplication of the small dent on the axle and decrease of axial force of U bolt.  On June 23, 2023, based on the above investigation result, if a vehicle continues to be operated with above mentioned condition, Hino considered there was possibility that the U bolt(s) and nut(s) could come off during vehicle operation. Hino determined to conduct a voluntary safety recall campaign for certain vehicles equipped with 12,000 lbs weight-rating front axle and suspension assembly containing one 9 mm spacer.

As of June 22, 2023, Hino is aware of 10 cases of driver side front U bolt(s) looseness or missing received from August 2022 to March 2023. Hino has also investigated warranty claims for similar cases. However, Hino is not aware of any warranty claims other than the vehicles mentioned above. To date, Hino is not aware of any reports of accidents or injuries resulting from driver side U bolt(s) looseness or missing.

1 Hino separately identified roughly 228 vehicles with front axle torque values above the rated specification. This issue will be discussed in a separate report filed contemporaneously with this one.


12 Affected Products


HINO NE7A 2022-2023
HINO NE7B 2022-2023
HINO NJ7A 2022-2023
HINO NJ7B 2022-2023
HINO NV7A 2022-2023
HINO NV7B 2022-2023


3 Associated Documents

Defect Notice 573 Report

RCLRPT-23V456-7771.PDF 214.565KB

Loader Loading...
EAD Logo Taking too long?

Reload Reload document
| Open Open in new tab

Download [209.54 KB]


Recall Acknowledgement

RCAK-23V456-7438.pdf 645.313KB

Loader Loading...
EAD Logo Taking too long?

Reload Reload document
| Open Open in new tab

Download [630.19 KB]


Chronology of Defect Determination

RMISC-23V456-1359.pdf 104.521KB

Loader Loading...
EAD Logo Taking too long?

Reload Reload document
| Open Open in new tab

Download [102.07 KB]


Latest Recalls Documents

For the Latest and Most Recent Recalls Information Visit the link below…




SaleBestseller No. 1
EPAuto 1/2-inch Drive Click Torque Wrench, 10-150 ft/lb, 13.6-203.5 N/m
  • 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 and 1/2" Drive to 3/8" Drive Reducer
  • Simple and Reliable: “Click” sound tells the preset torque value is reached. Stop applying force when you hear and feel it.
Bestseller No. 2
SUERCUP 1/2-inch Drive Torque Wrench - 10-170 ft.lb/13.6-230.5 Nm, Dual-Direction Adjustable 72 tooth Click Torque Wrench with Buckle for Bicycle, Moto and Car Maintenance
  • 【High Precision&Quick Reading】: 1/2 torque wrench has high contrast and dual range scale(10-170 ft.lb/13.6-230.5 Nm),making it clear and easy to read. We have professional torque wrench production technology, and after 20000 tests, the calibration error range of the torque wrench is ± 3%, making it an essential helper for you.
  • 【Safe and Reliable Operation】: Equipped with a bidirectional drive ratchet head, torque can be measured clockwise or counterclockwise. When the set torque value is reached, a "click" sound will remind you to stop applying force to prevent damage to the item due to excessive torque.
  • 【High Quality and Durable Material】: Made of hardened chromium vanadium steel alloy (Cr-V). At the same time, the bottom buckle tail plug adopts a red anodizing process to improve the product's oxidation resistance during use and enhance surface wear resistance. 72 tooth ratchet head, made of chromium molybdenum steel. High quality materials resist corrosion and are durable.
  • 【Quick Torque Setting】: Simple and fast torque setting, pull down the locking knob and hold it down to rotate to the torque you need. Release the hand and the locking knob will automatically rebound to lock the torque value. And the designer referred to the appearance of the flashlight handle and designed a non slip and labor-saving knurled handle, making it more comfortable and easy to hold when using.
  • 【Easy to Store and Widely Use】: You will receive the 1/2-inch drive click torque wrench with a sturdy plastic shell storage box, which is very delicate and durable. Torque wrench is suitable for repairing cars and motorcycles,and is the best gift for car owners 🎁. 🔔 And we provide 12 months warranty. If you have any questions, please feel free to contact us.
Bestseller No. 3
VANPO 1/4 & 3/8 & 1/2-inch Drive Click Torque Wrench, 3Pcs Torque Wrench Set 20-240in.lb, 5-45ft.lb, 20-160ft.lb, Dual-Direction Adjustable 72-Tooth Torque Wrench for Bike, Moto, Car Maintenance
  • 【3Pcs Torque Wrench Set】 The calibration error range is ±3%, each torque wrench has a calibration certificate. The 3-in-1 torque wrench set can meet your different needs. Including 1/4 inch 20-240in.lb, 3/8 inch 5-45ft.lb, 1/2 inch 20-160ft.lb.
  • 【Safe & Reliable】 When the 1/2 torque wrench reaches the preset torque value, it makes a clear "click" sound, accompanied by an obvious hand vibration that reminds you no longer to apply force, prevent damage caused. 72-tooth reversible ratchet head, it can be used both clockwise and counterclockwise directions.
  • 【Quick Release Button】 This 3/8 torque wrench has a quick release button with which accessories can easily be installed and removed, the accessories can grip and is not easy to fall down. It is more convenient to use. The torque wrench is made of CR-MO with a higher hardness.
  • 【Easy to Set】First pull down the locking knob and hold it down and then start setting the desired torque value. Release the hand and the locking knob will automatically rebound to lock the torque value. If you do not use, please set the torque key to the minimal torque value.
  • 【Widely Use】The torque wrenches can satisfy you in bicycle, motorcycle, car, truck and wheel screws, wheel nuts and in the device installation, electrical engineering, etc. We provide 12 months warranty. If you have any questions, please feel free to contact us.
SaleBestseller No. 4
LEXIVON 3/8-Inch Drive Click Torque Wrench 10~80 Ft-Lb/13.6~108.5 Nm (LX-182)
  • 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.
Bestseller No. 5
ANPUDS 3/8-Inch Drive Click Torque Wrench, 5-45 Ft-Lb/6.8-61 Nm, Dual-Direction Torque Wrench, Lightweight Aluminum 72-Tooth Dual Range Scales Torque Wrench for Bike, Motorcycle, Car Spark
  • 【High Accuracy】This 3/8 inch torque wrench features precise dual scales of 5-45 ft.lb/6.8-61Nm. The torque wrench body is made of lightweight aluminum material, more accurate than ordinary chrome vanadium steel. It tests for accuracy to industry standards within ±3%.
  • 【Lightweight and Durable】The bike torque wrench head is made of chrome-molybdenum alloy, the body and handle is made of 6061 aviation aluminum within compression resistance and oxidation resistance. The torque wrench weight is only 390g. It is lighter and higher hardness than chrome-vanadium steel. Easier to use it to tighten nuts and bolts.
  • 【Easy to Use】 Our torque wrench 3/8 drive is simple to use. Pull down the lock knob and hold it until the torque setting is completed. Release the hand, and the lock knob will automatically rebound back to lock the value. You will feel the vibrating handle or hear a ‘click’ from the wrench when the preset torque value is reached to remind you not to apply any more force.
  • 【Dual-Direction with 72 Tooth】The torque wrench has a 72-tooth quick release reversible ratchet head, easily install and remove the socket, and firmly grasp the socket to prevent it from falling off. The paddle of the torque wrench head can adjust the direction of use at any time, it can be used both clockwise and counterclockwise directions.
  • 【Wide Application】 This Motorcycle torque wrench can be widely applied. It is suitable for nuts and bolts on various occasions, such as bike, motorcycle, car spark. Every torque wrench set includes a calibration certificate with traceable serial number.
Bestseller No. 6
DEWALT Torque Wrench Tool Set, Tire Change Kit, 12 Piece (DWMT45012)
  • Protective head bumper included
  • Bi-Material grip for comfort during use
  • Locking trigger to control the torque applied
  • Forward and reverse torque capabilities
  • Direct Torque trade; Technology on included sockets
SaleBestseller No. 7
ACDelco ARM601-3 3/8” (3.7 to 37 ft-lbs.) Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration
  • [Advanced Technology]: 2 to 37 foot pounds torque range with LED flashing/ buzzer alarm when torque is reached. Easy to read LCD display with measurements (kg-cm, N-m, in-lb. ft-lb)
  • [Multiple Setting Functions]: Torque, Measurement, and, Peak & Trace, Mode Settings. (Torque setting range: 10% of max torque value. Measuring range: 2 to 37 ft-lbs.)
  • [Quality Assurance]: Meets or exceeds ASME B107.14-2004, ISO 6789 standards, individually serialized with matching certificate of calibration traceable to N.I.S.T.
Bestseller No. 8
HORUSDY 3/8-Inch Drive Click Torque Wrench, 10-80 Ft-Lb, Quick Release Ratchets, Black
  • The Durable Ratchet Gear Heads are Nade of Hardened Heat-Treated Chromium Vanadium Alloy Steel (Cr-V) . Non-Slip Knurled Handle. Black Electroplating Surface Treatment, Rust Resistant, Corrosion Resistant.
  • Accurate: Pre-Calibrated to ± 4%.High Contrast & Dual Range Scale, Include Measurement Instructions with Calibration.
  • The quick-release reversible head design is used to replace the socket by touching the middle part, and the driving direction can be changed by flipping the biased drive switch.
  • Simple and Reliable Operation, Equipped with Bidirectional Drive Ratchet Head to Measure Torque Clockwise.
  • Easy to Store and Includes a Sturdy Plastic Storage Box. Accessories included: 3/8" to 1/4" drive adapter , 3/8" to 1/2" drive adapter and 3/8" drive extension bar
Bestseller No. 9
Neiko 03714A 1/4" Drive Adjustable Click Torque Wrench | SAE | 20-200 Inch-Pound Chrome Vanadium Steel | 10.75" Length
  • 1/4 SMALL TORQUE WRENCH: Heat-treated CR-V steel construction supplies extreme durability and shock resistance for assorted applications.
  • ACCURIZING TORQUE WRENCH: Machined factory tested and calibrated to +/- 4 percent to assist in prevention of breaking or over tightening bolts.
  • INCH POUND TORQUE WRENCH: Quarter in. Dr. torque wrench includes a wide range of torque settings to loosen and tighten bolts on cars, motorcycles and small engine repair.
  • FEATURES: 1/4” drive torque and ratchet includes hard-to-find lower torque settings. Metric (MM) conversions displayed on tool and case.
  • CONVENIENCE: This automotive tool comes with an ABS custom fitted storage case for safe and convenient storage while providing protection while not in use.

Last update on 2024-02-11 / Affiliate links / Images from Amazon Product Advertising API

This product presentation was made with AAWP plugin.


Leave a Comment

Share to...