ROADFORMER 3" T-Bolt Hose Clamp 2-Pack — 304 Stainless, 2.81"–3.11" O.D., Nylon Locknut

ROADFORMER 3 inch T-bolt hose clamp (2 pack) secures hoses with a corrosion-resistant 304 stainless band and a heavy-duty T-bolt for reliable seals on 2.81"–3.11" outside diameter hoses.

These two ROADFORMER T-bolt clamps are built for demanding connections where vibration, pressure, and long-term durability matter. Constructed from 304 stainless steel with a nylon-insert locknut and a floating bridge design, they provide even compression and protect rubber and silicone hose walls from cuts. The working range is specified for hose outside diameter (O.D.), so confirm your hose O.D. before ordering.

How do these clamps deliver a secure seal on turbo, intercooler, and coolant hoses?

The heavy-duty T-bolt design applies uniform clamping force around the hose circumference, reducing the chance of leaks under pressure or torque. The floating bridge spreads the compression evenly, preventing localized pinching and preserving hose integrity. Smooth, rounded band edges minimize abrasion on silicone or rubber materials.

• Even pressure from the T-bolt and bridge for consistent sealing
• 304 stainless band resists corrosion in automotive environments
• Rounded edges protect hose material from cuts
• Nylon-insert locknut resists loosening under vibration

What size hoses will these clamps fit and how should I measure?

Each clamp fits hoses with an outside diameter between 2.81" and 3.11" (approximately 71–79 mm). Measure the hose O.D. rather than the inside diameter to ensure the clamp will close correctly. If your hose falls near the upper or lower limit, measure with the hose pressurized or with couplers installed for an accurate fit.

• Working range: 2.81"–3.11" O.D. (71–79 mm)
• Measure hose outside diameter for compatibility
• Check measurements while hose is mated to fittings for best results

How easy is installation and what tools are required?

Installation is straightforward: slide the clamp over the hose, position it over the coupling or barb, then tighten the bolt until the desired compression is achieved. Standard hand tools like a 1/4" drive socket or wrench are all that's needed. The floating bridge helps keep the band centered while you tighten for a faster, cleaner installation.

• Slide over hose, position over joint, tighten bolt with wrench or socket
• Common tools: wrench, ratchet, or nut driver
• Floating bridge aids alignment during tightening

Where are these clamps best applied and what environments do they withstand?

ROADFORMER T-bolt clamps are intended for heavy-duty automotive and industrial uses where vibration and pressure are present. They are commonly used on turbocharger plumbing, intercooler piping, radiator and coolant hoses, heavy trucks, off-road machines, and agricultural equipment. The 304 stainless steel construction offers good corrosion resistance in most service environments.

• Typical uses: turbo, intake, intercooler, radiator, coolant hoses
• Designed for high vibration and high-pressure situations
• 304 stainless resists corrosion in road and engine bay conditions
• Widely used across automotive, industrial, off-road, and agricultural sectors

Who is this for: These ROADFORMER T-bolt hose clamps suit mechanics, performance enthusiasts, fleet technicians, and equipment operators who need dependable, long-lasting coupler clamps for hoses with a 2.81"–3.11" outside diameter. If you install or maintain turbo, intercooler, radiator, or coolant systems and require even clamping force with corrosion resistance, this two-pack provides practical, ready-to-install hardware.