Service brakes, air: supply: check valve (Best)
Vehicle recall 03V-170. NHTSA received BEST TRAILER CORPORATION’s report on May 6, 2003.
Watch and the shortlist are kept with a free account, on every device. Your watch list. NHTSA’s own record is on nhtsa.gov.
The short answer
NHTSA received BEST TRAILER CORPORATION’s report on May 6, 2003. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
FAILURE OF THE VALVE IN AN EMPTY OR LIGHTLY LOADED TRAILER WHILE THE VEHICLE IS IN MOTION COULD RESULT IN A HARD APPLICATION OF THE SPRING BRAKES, POSSIBLY LOCKING UP THE TRAILER WHEELS AND RESULTING IN A VEHICLE CRASH.
ON CERTAIN TRAILERS EQUIPPED WITH SEALCO SPRING BRAKE CONTROL VALVE ASSEMBLIES INCORPORATED IN ARVINMERITOR AXLES, PART NOS. 110700 AND 110800, THERE IS A RECESSED AREA ON TOP OF THE VALVE IN WHICH A BRASS GUIDE PIN FITS DOWN INSIDE THE BODY OF THE VALVE AND IS HELD IN PLACE BY A STEEL SNAP RING.
THE RECESSED AREA ALLOWS ACCUMULATION OF WATER, DIRT, AND/OR CHEMICALS TO BUILD UP BEHIND THE SNAP RING TO THE POINT WHERE IT WILL NO LONGER CONTAIN THE GUIDE PIN RESULTING IN A FAILURE OF THE AIR VALVE.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Service brakes, air: supply: check valve.
What should you do?
SEALCO WILL PROVIDE A REPAIR KIT AND INSTALLATION INSTRUCTIONS TO CUSTOMERS FREE OF CHARGE. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT SEALCO AT 602-253-1007 OR BEST AT 262-626-8481.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: ALSO, CUSTOMERS CAN CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 52 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Best TTL40Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TTL30Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TTL24Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TPS24Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT60K3and 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT40Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT30KFDand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT30Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT24KDand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best GNDD50K3and 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TNT20Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TT20and 1998 and 1999, before the model years listed here
- Best GTL50K3and 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TTL60K3and 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TTL50K3and 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best GNDD24KORand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best GN50Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best GHP25Tand 1998, 1999, 2000 and 2001, before the model years listed here
- Best CHP2573PSand 1998, 1999, 2000 and 2001, before the model years listed here
- Best CHP20TPSand 1998, 1999, 2000 and 2001, before the model years listed here
- Best CFP2573and 1998, 1999, 2000 and 2001, before the model years listed here
- Best CFP20Tand 1998, 1999, 2000 and 2001, before the model years listed here
- Best TTL44Kand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best GNDDTCKand 1998, 1999, 2000, 2001 and 2002, before the model years listed here
- Best TBT10Xand 1998 and 1999, before the model years listed here
- Best TBT20and 1998 and 1999, before the model years listed here
Who is recalling it?
- Made by BEST TRAILER CORPORATION.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.