{"product_id":"otr-otr3030sb-3030-standard-stroke-spring-brake-chamber","title":"OTR OTR3030SB | 30\/30 Standard Stroke Spring Brake Chamber","description":"\n\u003ch2\u003eOTR OTR3030SB Type 30\/30 Standard Stroke Spring Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eMaintain reliable commercial vehicle braking performance with the \u003cstrong\u003eOTR OTR3030SB 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 both service braking and spring-applied parking brake functionality in one durable assembly.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing a \u003cstrong\u003e2.5-inch standard stroke, 9.75-inch pushrod, reinforced mounting studs, and heavy-duty construction\u003c\/strong\u003e, the OTR3030SB is engineered to withstand demanding commercial vehicle operating conditions.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're replacing a leaking brake chamber, repairing a trailer air brake system, or maintaining a commercial truck fleet, the OTR3030SB provides a replacement option for properly matched Type 30\/30 brake applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This product is a standard-stroke brake chamber with a 9.75-inch pushrod. Verify your existing brake chamber specifications before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB Features \u0026amp; Benefits\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType 30\/30 Combination Brake Chamber:\u003c\/strong\u003e Combines 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\u003e9.75-Inch Pushrod:\u003c\/strong\u003e Provides the specified pushrod length for properly matched brake linkage configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Mounting Studs:\u003c\/strong\u003e Designed to provide additional rigidity and resist mounting-related damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Steel Pushrod Plate:\u003c\/strong\u003e Thick steel construction with precision welding for strength and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Dust Shield:\u003c\/strong\u003e Helps keep dirt, sand, moisture, and road contaminants away from vulnerable components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Construction:\u003c\/strong\u003e Designed for demanding commercial truck and trailer environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaging Bolt Included:\u003c\/strong\u003e Supplied for use during approved brake chamber service procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE Standards:\u003c\/strong\u003e Manufacturer identifies the chamber as meeting or exceeding applicable SAE requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Year Limited Warranty:\u003c\/strong\u003e Listed warranty coverage, subject to applicable supplier terms and conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHeavy-Duty Type 30\/30 Spring Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOTR3030SB spring brake chamber\u003c\/strong\u003e is a combination air brake actuator used in commercial vehicle drum brake systems.\u003c\/p\u003e\n\n\u003cp\u003eIt performs two essential braking functions:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Braking:\u003c\/strong\u003e Compressed air acts on the service chamber diaphragm, moving the pushrod to operate the foundation brake mechanism.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParking and Emergency Braking:\u003c\/strong\u003e A powerful internal spring applies the parking brakes when spring-brake release pressure is removed or becomes insufficient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Type 30\/30 designation identifies the service and spring brake chamber sizes. Proper chamber selection is essential for maintaining the braking system's intended performance.\u003c\/p\u003e\n\n\u003ch2\u003eCommercial Truck \u0026amp; Trailer Applications\u003c\/h2\u003e\n\n\u003cp\u003eThe OTR3030SB is designed for compatible heavy-duty commercial vehicle air brake systems requiring a Type 30\/30 standard-stroke combination chamber.\u003c\/p\u003e\n\n\u003cp\u003ePotential applications include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eHeavy-duty semi trucks\u003c\/li\u003e\n\u003cli\u003eClass 7 and Class 8 commercial trucks\u003c\/li\u003e\n\u003cli\u003eTruck tractors\u003c\/li\u003e\n\u003cli\u003eCommercial 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\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Compatibility depends on the installed brake system, chamber configuration, pushrod length, mounting dimensions, and brake linkage requirements. Vehicle make and model alone do not establish fitment.\u003c\/p\u003e\n\n\u003ch2\u003e9.75-Inch Pushrod for Standard-Stroke Applications\u003c\/h2\u003e\n\n\u003cp\u003eOne of the most important specifications of the OTR3030SB is its \u003cstrong\u003e9.75-inch pushrod length\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eDifferent Type 30\/30 spring brake chambers may have similar external appearances but different pushrod lengths and installation requirements.\u003c\/p\u003e\n\n\u003cp\u003eFor example, the OTR3030SB uses a 9.75-inch pushrod, while the OTR3030SB2 is listed with an 8-inch pushrod.\u003c\/p\u003e\n\n\u003cp\u003eAlways verify the required pushrod configuration, clevis arrangement, and brake linkage geometry before selecting a replacement chamber.\u003c\/p\u003e\n\n\u003ch2\u003eStandard Stroke vs. Long Stroke Brake Chambers\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eOTR3030SB features a nominal 2.5-inch standard stroke\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eStandard-stroke and long-stroke chambers have different operating travel capabilities and may have different adjustment limits and identification markings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo not substitute this standard-stroke brake chamber for a long-stroke chamber.\u003c\/strong\u003e Confirm the original equipment stroke designation before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eHeavy-Duty Construction \u0026amp; Corrosion Protection\u003c\/h2\u003e\n\n\u003cp\u003eCommercial truck and trailer brake components are regularly exposed to road moisture, dirt, salt, vibration, and demanding operating conditions.\u003c\/p\u003e\n\n\u003cp\u003eThe OTR3030SB incorporates reinforced mounting studs, a durable steel pushrod plate, and a protective dust shield to help maintain structural integrity and reduce exposure to contaminants.\u003c\/p\u003e\n\n\u003cp\u003eThe chamber is designed and tested for demanding commercial braking applications.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB Cross References\u003c\/h2\u003e\n\n\u003cp\u003eThe OTR3030SB appears in commercial truck parts interchange catalogs alongside other Type 30\/30 standard-stroke spring brake chamber products.\u003c\/p\u003e\n\n\u003cp\u003eRelevant catalog references include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTR:\u003c\/strong\u003e OTR3030SB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMGM Brakes:\u003c\/strong\u003e 3430551\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeritor:\u003c\/strong\u003e 3030TN2ULP-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHaldex:\u003c\/strong\u003e LCP3030R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHaldex:\u003c\/strong\u003e GC3030R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Interchange Reference:\u003c\/strong\u003e BTS-3030\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-Reference Warning:\u003c\/strong\u003e Catalog interchange numbers are intended for parts identification only. Confirm stroke, pushrod length, mounting dimensions, clevis configuration, and applicable brake system specifications before treating any listed part as a direct replacement.\u003c\/p\u003e\n\n\u003ch2\u003eSigns of a Failing Spring Brake Chamber\u003c\/h2\u003e\n\n\u003cp\u003eBrake chamber problems should be diagnosed promptly because they can affect commercial vehicle braking performance and safety.\u003c\/p\u003e\n\n\u003cp\u003eCommon symptoms include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAir leaking from the brake chamber\u003c\/li\u003e\n\u003cli\u003eDifficulty releasing the parking brakes\u003c\/li\u003e\n\u003cli\u003eAbnormal or excessive pushrod travel\u003c\/li\u003e\n\u003cli\u003eVisible corrosion or physical damage\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 problems may produce similar symptoms. Inspect the air supply system, control valves, slack adjusters, foundation brakes, and related components before replacing the chamber.\u003c\/p\u003e\n\n\u003ch2\u003eOTR OTR3030SB 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\u003eManufacturer Part Number:\u003c\/strong\u003e OTR3030SB\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 9.75 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\u003eMounting Stud Length:\u003c\/strong\u003e 1.54 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamber Configuration:\u003c\/strong\u003e Combination Spring Brake\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Application:\u003c\/strong\u003e Compatible Heavy-Duty Drum Brake Systems\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 4-Year Limited Warranty\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 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 purchasing or installing the OTR3030SB, verify the original brake chamber size, stroke designation, pushrod length, mounting stud spacing, clevis requirements, and applicable brake system specifications.\u003c\/p\u003e\n\n\u003cp\u003eFollow the vehicle and brake manufacturer's approved installation and inspection procedures. Confirm correct brake linkage geometry, pushrod travel, chamber mounting, and foundation brake operation before returning the vehicle to service.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCritical Safety Warning:\u003c\/strong\u003e Spring brake chambers contain powerful compressed springs 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 Commercial vehicle braking systems are safety-critical. Brake chamber replacement, adjustment, and inspection should be performed by qualified technicians.\u003c\/p\u003e\n","brand":"OTR","offers":[{"title":"Default Title","offer_id":67678567170093,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/4526\/0845\/files\/OTR-OTR3030SB_1.jpg?v=1792047784","url":"https:\/\/performancedieselgroup.com\/products\/otr-otr3030sb-3030-standard-stroke-spring-brake-chamber","provider":"Performance Diesel Group","version":"1.0","type":"link"}