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April 8, 2021 NHTSA CAMPAIGN NUMBER: 21E025000
Spring Brake Chamber Assembled Incorrectly
The pressure plate may tear the diaphragm, causing a loss of air pressure, and increasing the risk of a crash.
NHTSA Campaign Number: 21E025
Manufacturer Meritor, Inc.
Components SERVICE BRAKES, AIR
Potential Number of Units Affected 2,918
Summary
Meritor, Inc. (Meritor
) is recalling certain TSE T2024 Air Chamber Part Number D3 3376T20. The spring brake chamber may have been assembled with incorrect springs that were out of specification, which can cause the pressure plate to shift.
Remedy
Meritor will notify the affected vehicle OEMs and will inspect the pressure plate and replace brake chambers where the pressure plate has shifted, free of charge. Owner letters were mailed May 10, 2021. Owners may contact Meritor
customer service at 1-866-668-7221.
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.safercar.gov.
1 Affected Product
Equipment
5 Associated Documents
Recall Acknowledgement
RCAK-21E025-4106.pdf 652.057KB
Recall 573 Report – Amendment 2
RCLRPT-21E025-4967.PDF 214.463KB
Recall 573 Report – Amendment 1
RCLRPT-21E025-7525.PDF 214.458KB
Defect Notice 573 Report
RCLRPT-21E025-1104.PDF 214.433KB
Recall Quarterly Report #1, 2021-2
RCLQRT-21E025-0611.PDF 211.125KB
Latest Recalls Documents
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- Heavy-duty Type 30/30 spring brake chamber with 3" long stroke design; perfect for tandem axle applications requiring extended durability and reliable emergency brake power.
- Includes clevis and S-9137 hardware, universal push rod with stroke indicator, and a 15” rod length to ensure precise installation and stroke alignment across multiple commercial vehicle platforms.
- Built with reinforced 11-gauge steel non-pressure housing, high-strength steel clamp bands, lightweight aluminum adapter housing, and epoxy-coated power spring for lasting corrosion resistance.
- Features square air port, .375” thread diameter, 4.75” bolt center-to-center, and .625” x 18” push rod spec; wide clamp bands simplify diaphragm replacement and service maintenance.
- Environmentally friendly black E-coated steel housing resists corrosion like zinc plating but avoids harmful carcinogens—covered by a 1-Year / 100,000-Mile warranty for peace of mind.
- TYPE - Air Brake Chamber Type 3030 30/30 30 30
- REPLACEMENT - Bendix
165255 K049898 NT3030STD120 NT3030STD-120 802547 // Meritor
3030TN2-HNTRX-C // Dayton 3030C // Haldex
GC3030 GC3030P40 // Freightliner
3030TS // Mack
19QE441RP1
- SPECS - Brake Chamber Type: 3030 // Stroke: Standard // Stroke Length: 2-1/2" // Port Thread: 2x3/8" NPT // Bolt Thread: 5/8"-11 UNC // Push Rod Length: 11-3/4" // Weight: 21lbs
- FEATURES -
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Air Brake Chamber Type 3030 30/30 30 30 Welded Clevis
- REPLACEMENT - K129605 K067114 // GC3030CW GC3030S4CW
- SPECS - Actuator Type Size: 3030 // Stroke Type: Standard // Available Stroke: 2-1/2" // Length from mounting bracket to end of Spring Housing: 9" // Length of Piggyback: 6-13/16"
- FEATURES - Superior Power Spring Technology; Advanced powder coating process; Resists corrosion and fatigue
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- This item includes 2 x Air Brake Chamber – BC-3030STD
- Actuator Type Size: 3030 Standard
- Stroke Type: Standard
- Available Stroke: 2-1/2", 64mm
- Length from mounting bracket to the end of Spring Housing: 9", 229mm
- TYPE - Long Stroke Air Brake Chamber Service Type 24 with Welded Clevis // Chamber Type / Size: 24 // Service Chamber Joint Type: Double Clamp Band // Clevis / Yoke Arm Link Pin Diameter: 0.25 IN ( 6.35 MM) // Clevis / Yoke Arm Bushing Pin Diameter: 0.50 IN ( 12.7 MM) // Minimum Operating Temperature: -45 ?F (-43 ?C) // Clamp Angle: 0? // Clevis / Yoke Style: Welded
- REPLACEMENT - Bendix
K058691 // MGM 1427901 1427902 // Automann 179.M1427901 179.SC24XLW225
- SPECS - Stud Thread Size: 5/8-11 UNC-2A // Mounting Stud Length: 1.50 IN (38.1 MM) // Stud Spacing: 4.75 IN (120.7 MM) // Stroke: 2.50 IN (63.5 MM) // Push Rod Length (to Yoke Pin Center when Applicable): 3.90 in // Service Port - Side: 3/8-18 NPT // Service Port - Center: 3/8-18 NPT (Plugged) // Port Angle: 0?
- FEATURES - Steel Pressure Housing; Powder coated with resistance welded air ports // World Class Diaphragm; High quality rubber compound, resistant to heat and cold // Sturdy Service Housing; Powder coated for corrosion resistance; Flat bottom with 10 gauge steel // Self-piloting Dust Shield // Clevis / Yoke Pin Spacing: 1.30 IN (33 MM) // Maximum Operating Temperature: 175 ?F (79 ?C)
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Air Brake Chamber Type 3030 30/30 30 30
- REPLACEMENT - Bendix
165255 // Haldex
GC3030 GC3030P40 // Dayton 3030C
- SPECS - Brake Chamber Type: 3030 // Stroke: Standard // Stroke Length: 2-1/2" // Port Thread: 2x3/8" NPT // Bolt Thread: 5/8"-11 UNC // Push Rod Length: 11-3/4" // Weight: 21lbs
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- Compatible with Leading Brands — Directly replaces multiple part numbers from top manufacturers such as Bendix
, Meritor
, Dayton, Haldex
, Freightliner
, and Mack
, ensuring wide application across various truck models.
- Standard 2-1/2" Stroke Length — Features a standard stroke of 2-1/2", ideal for most air brake systems, providing reliable performance for heavy-duty vehicles.
- Durable Construction — Built with a 2x3/8" NPT port thread, 5/8"-11 UNC bolt thread, and a push rod length of 11-3/4", ensuring secure connections and long-lasting durability under demanding conditions.
- Optimized for Heavy-Duty Use — Weighing 21 lbs, this air brake chamber is specifically designed fit for semi trucks and trailers, ensuring dependable operation and safety even in the toughest environments.
- Genuine Haldex
Brake Chamber - SC20LCW
- Item Package Dimension: 8.59L x 8.39W x 8.39H inches
- Item Package Weight - 7.0 Pounds
- Item Package Quantity - 1
- Product Type - AUTO PART
- TYPE - Long Stroke Air Brake Chamber Type 3030
- REPLACEMENT - Haldex
GC3030L LC3030L GC3030LR
- SPECS - Actuator Type Size: 3030 // Stroke Type: Long // Available Stroke: 3", 76mm // Length from mounting bracket to end of Spring Housing: 9-7/8", 251mm // Length of Piggyback: 7-3/8", 187mm
- FEATURES - Superior Power Spring Technology; Advanced powder coating process; Resists corrosion and fatigue
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Long Stroke Air Brake Chamber Type 3030 30/30 30 30 Welded Clevis
- REPLACEMENT - Bendix
NT3030ELSWC NT3030ELS-WC // Haldex
GC3030LCW LC3030LCW // Freightliner
HDX1373030215 // Automann 179.SB3030SLW225 // IHC 3541891C91 // Others BTS-3030LS-WCR GTA-3030LS-WCR
- SPECS - Actuator Type Size: 3030 // Stroke Type: Long // Available Stroke: 3" // Length from mounting bracket to end of Spring Housing: 9-7/8" // Length of Piggyback: 7-3/8" // Dimension at rolled Spring Housing flange: 8-5/16" // Dimension at Service Clampband: 10-3/16" // Pushrod Length from face of Service Housing: 1" // Distance to Clevis Pin centerline from face of Service Housing: 2-1/4" // Weight: 21.9 lbs.
- FEATURES - Combination with Welded Clevis Long Stroke Size 3030 Square Bosses // Superior Power Spring Technology; Advanced powder coating process; // Resists corrosion and fatigue // Double O-ring Centerseal; Two o-rings for positive sealing and plastic bearings for long life // World Class Diaphragm; High quality rubber compound, resistant to heat and cold // Self-piloting Dust Shield // Sizes to fit all drum brake applications
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
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