{"id":8719,"date":"2026-10-09T11:30:42","date_gmt":"2026-10-09T11:30:42","guid":{"rendered":"https:\/\/onetouchexim.com\/clamps\/product\/t-bolt-spring-load-hose-clamp-2-63-in-to-2-94-in-4st263b\/"},"modified":"2026-10-09T13:25:27","modified_gmt":"2026-10-09T13:25:27","slug":"t-bolt-spring-load-hose-clamp-2-63-in-to-2-94-in-4st263b","status":"publish","type":"product","link":"https:\/\/onetouchexim.com\/clamps\/t-bolt-clamps\/t-bolt-spring-load-hose-clamp-2-63-in-to-2-94-in-4st263b\/","title":{"rendered":"T-Bolt Spring Load Hose Clamp 2.63 in to 2.94 in \u2013 OTX-4ST263B"},"content":{"rendered":"

Specifications<\/a>Cross Reference<\/a>Application<\/a>Overview<\/a><\/p>\n

Specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Housing Material<\/td>\n301 STAINLESS STEEL<\/td>\n<\/tr>\n
Screw Material<\/td>\nZINC PLATED CARBON STEEL<\/td>\n<\/tr>\n
Hex Screw (in)<\/td>\n7\/16"<\/td>\n<\/tr>\n
Band Width (in)<\/td>\n3\/4"<\/td>\n<\/tr>\n
Torque Range (in-lbs)<\/td>\n150<\/td>\n<\/tr>\n
SAE<\/td>\n56<\/td>\n<\/tr>\n
Min. Dia. (in)<\/td>\n2-5\/8<\/td>\n<\/tr>\n
Max. Dia. (in)<\/td>\n2-15\/16<\/td>\n<\/tr>\n
Min. Dia. (mm)<\/td>\n67<\/td>\n<\/tr>\n
Max. Dia. (mm)<\/td>\n75<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Cross References<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Name<\/th>\nPart Number<\/th>\nType<\/th>\n<\/tr>\n<\/thead>\n
Breeze<\/td>\nB9226-0263 B<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Breeze<\/td>\nB92260263B<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Excoh<\/td>\n4ST263B<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Mack<\/td>\n21922388<\/strong><\/td>\nOEM<\/td>\n<\/tr>\n
New Star<\/td>\nS-29784<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
New Star<\/td>\nS29784<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Norma<\/td>\n0363 0006 071<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Norma<\/td>\n03630006071<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n
Norma<\/td>\n3630006071<\/strong><\/td>\nAftermarket<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Application<\/h3>\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Application<\/td>\nCharge Air Cooler, Turbo & Intake Hoses<\/td>\n<\/tr>\n
Clamp Type<\/td>\nSpring-Loaded T-Bolt Clamp<\/td>\n<\/tr>\n
OEM Makes<\/td>\nMack<\/td>\n<\/tr>\n
Clamping Range<\/td>\n2-5\/8 in to 2-15\/16 in (67\u201375 mm)<\/td>\n<\/tr>\n
Fitment<\/td>\nUniversal fit within the stated size; confirm against your OEM or interchange part number.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Product Overview \u2013 T-Bolt Spring Load Hose Clamp 2.63 in to 2.94 in<\/h3>\n

The OTX-4ST263B is a spring-loaded T-bolt clamp sized for 2-5\/8 in to 2-15\/16 in (67\u201375 mm), used by fleets and workshops on charge air cooler, turbo and intake hoses.<\/p>\n

The spring-loaded bolt compensates for hose cold-flow and thermal cycling, a common cause of charge air leaks on turbocharged diesel engines.<\/p>\n

Construction: a 301 stainless steel band 3\/4 in wide, a zinc plated carbon steel screw with a 7\/16 in hex, with a torque rating of 150 in-lbs.<\/p>\n

It cross-references to OEM part number Mack 21922388 and 5 aftermarket numbers, so you can match the exact clamp you are replacing.<\/p>\n

Tip: replace clamps whenever a joint is opened for service; a used clamp may not seal to the same load.<\/p>\n

Contact OneTouch Exim with your OEM or competitor part number and we will confirm fitment and quote the OTX-4ST263B.<\/p>\n

Frequently Asked Questions<\/h3>\n

Which part numbers does OTX-4ST263B replace?<\/strong>
OTX-4ST263B interchanges with Mack 21922388, Breeze B92260263B, Excoh 4ST263B, New Star S-29784, Norma 3630006071, Norma 0363 0006 071. The cross reference table lists all 9 matching numbers.<\/p>\n

What hose size does OTX-4ST263B fit?<\/strong>
It fits hoses with an outside diameter from 2-5\/8 in to 2-15\/16 in (67\u201375 mm).<\/p>\n

Manufacturer names and part numbers are used for reference and interchange purposes only. No affiliation with, or endorsement by, these manufacturers is implied.<\/p>\n","protected":false},"excerpt":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n
Part No:<\/td>\nOTX-4ST263B<\/strong><\/td>\n<\/tr>\n
Short Description:<\/td>\nSpring-Loaded T-Bolt Clamp for charge air cooler, turbo and intake hoses, 2-5\/8 in to 2-15\/16 in (67\u201375 mm).<\/td>\n<\/tr>\n
Category:<\/td>\nClamps → T-Bolt Clamps<\/td>\n<\/tr>\n
Brand:<\/td>\nBreeze<\/td>\n<\/tr>\n
Availability:<\/td>\nIn Stock<\/span><\/td>\n<\/tr>\n
Price:<\/td>\nRequest a quote<\/a><\/td>\n<\/tr>\n
Unit:<\/td>\n1 (Each)<\/td>\n<\/tr>\n
Weight (lbs):<\/td>\n0.37<\/td>\n<\/tr>\n
Pkg. Dimensions (inches):<\/td>\n3.25 x 3.25 x 1<\/td>\n<\/tr>\n
Replaces:<\/td>\nMack 21922388, Excoh 4ST263B, New Star S-29784<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[60],"product_tag":[17,65,18],"class_list":["post-8719","product","type-product","status-publish","product_cat-t-bolt-clamps","product_tag-heavy-duty-clamps","product_tag-mack-clamps","product_tag-truck-parts","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nT-Bolt Spring Load Hose Clamp 2.63 in to 2.94 in \u2013 OTX-4ST263B - clamps<\/title>\n<meta name=\"description\" content=\"T-Bolt Spring Load Hose Clamp 2.63 in to 2.94 in \u2013 Part No. OTX-4ST263B. Replaces Mack 21922388, Excoh 4ST263B. 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