{"product_id":"otr-otr3030sb2-3030-standard-stroke-spring-brake-chamber","title":"OTR OTR3030SB2 | Type 30\/30 Standard Stroke Spring Brake Chamber","description":"\n\u003ch2\u003eOTR OTR3030SB2 Type 30\/30 Standard Stroke Spring Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eMaintain dependable air brake system performance with the \u003cstrong\u003eOTR OTR3030SB2 Type 30\/30 Standard Stroke Spring Brake Chamber\u003c\/strong\u003e. Designed for compatible heavy-duty trucks and trailers, this combination spring brake chamber provides service braking and spring-applied parking brake functionality in a durable, corrosion-resistant assembly.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing a \u003cstrong\u003e2.5-inch standard stroke, 8-inch pushrod, reinforced mounting studs, and epoxy-coated steel housing\u003c\/strong\u003e, the OTR3030SB2 is engineered for demanding commercial vehicle applications. Its heavy-duty construction makes it a practical replacement for worn, damaged, or leaking Type 30\/30 brake chambers when all installation specifications match.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This is a standard-stroke brake chamber, not a long-stroke model. Verify the original chamber configuration before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB2 Features \u0026amp; Benefits\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType 30\/30 Combination Chamber:\u003c\/strong\u003e Combines normal service braking and spring-applied parking brake functions in one assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.5-Inch Standard Stroke:\u003c\/strong\u003e Designed for compatible standard-stroke air brake systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-Inch Pushrod:\u003c\/strong\u003e Provides the specified pushrod configuration for properly matched brake applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEpoxy-Coated Steel Housing:\u003c\/strong\u003e Non-pressure epoxy coating helps resist corrosion and rust in demanding road environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 10-Gauge Housing:\u003c\/strong\u003e Durable construction for commercial truck and trailer service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Mounting Studs:\u003c\/strong\u003e Designed to provide mounting strength and rigidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc-Coated Clamp Bands:\u003c\/strong\u003e Matched-stamping construction helps maintain secure sealing and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-Welded Pushrod Plate:\u003c\/strong\u003e Thick steel pushrod plate engineered for strength and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Dust Shield:\u003c\/strong\u003e Helps keep dirt, sand, and moisture away from vulnerable brake chamber components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaging Bolt Included:\u003c\/strong\u003e Supplied with the manufacturer's specified caging bolt for approved service procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Year Limited Warranty:\u003c\/strong\u003e Listed manufacturer\/distributor warranty, subject to applicable terms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHeavy-Duty Type 30\/30 Air Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOTR3030SB2 spring brake chamber\u003c\/strong\u003e is a combination air brake actuator used in compatible commercial vehicle braking systems.\u003c\/p\u003e\n\n\u003cp\u003eIt performs two important functions:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Braking:\u003c\/strong\u003e Compressed air enters the service chamber and moves the diaphragm and pushrod to actuate the foundation brake system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParking and Emergency Braking:\u003c\/strong\u003e The internal power spring applies the parking brakes when release air pressure is removed or becomes insufficient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCorrect brake chamber sizing and installation are essential for maintaining proper brake operation and vehicle safety.\u003c\/p\u003e\n\n\u003ch2\u003eCommercial Truck \u0026amp; Trailer Applications\u003c\/h2\u003e\n\n\u003cp\u003eOTR Type 30\/30 spring brake chambers are used in various commercial vehicles equipped with compatible air-operated foundation brakes.\u003c\/p\u003e\n\n\u003cp\u003ePotential applications include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eClass 7 and Class 8 semi trucks\u003c\/li\u003e\n\u003cli\u003eCommercial truck tractors\u003c\/li\u003e\n\u003cli\u003eHeavy-duty trailers\u003c\/li\u003e\n\u003cli\u003eDry van and flatbed trailers\u003c\/li\u003e\n\u003cli\u003eVocational trucks\u003c\/li\u003e\n\u003cli\u003eDump trucks\u003c\/li\u003e\n\u003cli\u003eCommercial fleet vehicles\u003c\/li\u003e\n\u003cli\u003eOther vehicles using compatible Type 30\/30 standard-stroke spring brake assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Vehicle make, model, and axle position do not establish compatibility by themselves. Verify the original brake chamber size, stroke, pushrod length, mounting dimensions, and brake linkage requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCorrosion-Resistant Epoxy-Coated Housing\u003c\/h2\u003e\n\n\u003cp\u003eCommercial truck brake components are routinely exposed to moisture, road salt, dirt, and debris. The OTR3030SB2 features a non-pressure epoxy-coated steel housing designed to help protect against long-term corrosion.\u003c\/p\u003e\n\n\u003cp\u003eThe zinc-coated clamp bands and protective dust shield provide additional protection against environmental contamination and support durable operation in heavy-duty service conditions.\u003c\/p\u003e\n\n\u003ch2\u003eReinforced Mounting Studs \u0026amp; Heavy-Duty Pushrod Plate\u003c\/h2\u003e\n\n\u003cp\u003eThe OTR3030SB2 incorporates reinforced mounting studs to help resist mounting damage and maintain structural rigidity.\u003c\/p\u003e\n\n\u003cp\u003eIts thick steel pushrod plate features CNC-welded construction designed for demanding commercial braking applications. Proper installation and brake linkage alignment are essential to achieving the intended service performance.\u003c\/p\u003e\n\n\u003ch2\u003eStandard Stroke vs. Long Stroke Brake Chambers\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOTR3030SB2 is a Type 30\/30 standard-stroke brake chamber with a 2.5-inch maximum rated stroke\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eStandard-stroke and long-stroke chambers have different stroke capabilities and may have different identification markings, adjustment limits, and service requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo not substitute this standard-stroke brake chamber for a long-stroke unit.\u003c\/strong\u003e Always confirm the correct stroke designation using the original chamber and vehicle manufacturer's specifications.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB2 Cross References\u003c\/h2\u003e\n\n\u003cp\u003eCommercial truck parts catalogs associate OTR3030SB2 with several standard-stroke Type 30\/30 brake chamber references, including:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTR:\u003c\/strong\u003e OTR3030SB2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTR Manufacturer Number:\u003c\/strong\u003e OTR3030SB-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Products:\u003c\/strong\u003e 3030SB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomann:\u003c\/strong\u003e 179.SB3030S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBendix:\u003c\/strong\u003e K129605\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBendix:\u003c\/strong\u003e NT3030STD78TC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDayton:\u003c\/strong\u003e 3030C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeritor:\u003c\/strong\u003e 3030TN2C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMGM Brakes:\u003c\/strong\u003e 3430051\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMGM Brakes:\u003c\/strong\u003e 3630051\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTR:\u003c\/strong\u003e OTR3030SB\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-Reference Warning:\u003c\/strong\u003e These numbers are catalog interchange references, not a guarantee of identical configurations. Pushrod lengths, clevis arrangements, stroke specifications, and other installation requirements may differ. Confirm all critical dimensions and the approved application before replacing a brake chamber.\u003c\/p\u003e\n\n\u003ch2\u003eSigns of a Failing Spring Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eA defective brake chamber can affect parking brake release, service brake operation, and air system performance. Brake problems should be diagnosed promptly by a qualified technician.\u003c\/p\u003e\n\n\u003cp\u003eCommon symptoms include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAudible air leaks near the brake chamber\u003c\/li\u003e\n\u003cli\u003eDifficulty releasing the parking brakes\u003c\/li\u003e\n\u003cli\u003eAbnormal pushrod travel\u003c\/li\u003e\n\u003cli\u003eVisible corrosion or damage to the chamber housing\u003c\/li\u003e\n\u003cli\u003eDamaged mounting studs or brackets\u003c\/li\u003e\n\u003cli\u003eInconsistent brake application or release\u003c\/li\u003e\n\u003cli\u003eFailed commercial vehicle brake inspections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOther brake system components can produce similar symptoms. Inspect the air supply system, control valves, slack adjusters, foundation brakes, and related components before determining the necessary repair.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB2 Product Specifications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e OTR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e OTR3030SB2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e OTR3030SB-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Combination Spring Brake Chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamber Size:\u003c\/strong\u003e Type 30\/30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Chamber Type:\u003c\/strong\u003e Type 30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Chamber Type:\u003c\/strong\u003e Type 30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke Type:\u003c\/strong\u003e Standard Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke Length:\u003c\/strong\u003e 2.50 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePushrod Length:\u003c\/strong\u003e 8.00 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Stud Spacing:\u003c\/strong\u003e 4.75 Inches, Center to Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Stud Threads:\u003c\/strong\u003e 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing:\u003c\/strong\u003e Heavy-Duty Epoxy-Coated Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamber Configuration:\u003c\/strong\u003e Double Diaphragm, Spring Combination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaging Bolt:\u003c\/strong\u003e Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Years, Subject to Warranty Terms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVMRS:\u003c\/strong\u003e 013-010-034\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Spring Brake Chamber\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBrake Chamber Installation \u0026amp; Safety Information\u003c\/h2\u003e\n\n\u003cp\u003eBefore ordering or installing the OTR3030SB2, verify the original brake chamber's size, stroke, pushrod length, mounting stud spacing, clevis requirements, and applicable brake system specifications.\u003c\/p\u003e\n\n\u003cp\u003eBrake chamber installation must follow the vehicle and brake manufacturer's approved procedures. Inspect brake linkage geometry, pushrod travel, mounting hardware, and related foundation brake components before returning the vehicle to service.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCritical Safety Warning:\u003c\/strong\u003e Spring brake chambers contain a powerful compressed spring that can cause severe injury or death if improperly handled. Never cut, open, or disassemble the spring brake housing. Follow the manufacturer's approved procedures for caging, removal, installation, and testing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional Installation Recommended:\u003c\/strong\u003e Air brake systems are safety-critical. All brake chamber replacement and adjustment work should be performed by qualified personnel.\u003c\/p\u003e\n","brand":"OTR","offers":[{"title":"Default Title","offer_id":67678543380525,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/4526\/0845\/files\/OTR3030SB2_-2_20_1.jpg?v=1792047355","url":"https:\/\/performancedieselgroup.com\/products\/otr-otr3030sb2-3030-standard-stroke-spring-brake-chamber","provider":"Performance Diesel Group","version":"1.0","type":"link"}