Steel Trailer Dust Cap - Solid - 2.72" O.D. (DC-275)

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Solid drive-in trailer hub dust cap for compatible hubs with a 2.72" cap bore. This cap helps cover the wheel bearing cavity and protect hub components from road debris, moisture, and contamination. Part Number: DC-275 2.72" O.D. / 2-3/4" Nominal Solid Zinc-Plated Steel Cap Key Measurements & Specs Specification Detail Part Number / SKU DC-275 Product Type Solid trailer hub dust cap / grease cap Nominal Size 2-3/4" Actual Drive-In Diameter 2.72" O.D. Overall Height / Depth 1.28" Material / Finish Zinc-plated steel Quantity Included One solid dust cap Fitment / Application Category Details System Trailer wheel hub / bearing cap application Primary Fit Fits compatible trailer hubs with a 2.72" dust cap bore Common Axle Range Commonly referenced for many 6,000 lb, 7,000 lb, and 8,000 lb trailer axle hub applications where measurements match Fitment Method Measure the hub bore or old cap flange diameter before ordering Important Note Do not order by the rounded 2-3/4" name alone; verify the actual 2.72" drive-in diameter Top Features Feature Buyer Benefit Solid Cap Design Standard non-lube cap with no rubber plug or grease-access hole Drive-In Installation Installs into the hub bore by tapping the cap evenly into place 2.72" O.D. Matches compatible trailer hubs using the 2.72" cap size Zinc-Plated Steel Helps resist corrosion in trailer service environments Overview The DC-275 is a solid drive-in trailer hub dust cap with a 2.72" outside diameter and 1.28" height. It is used to cover the hub opening and help protect wheel bearings and hub grease from dirt, water, and road debris. This is the solid style cap, not the rubber-plug E-Z Lube / relube style. R&P Service Insight Dust caps are measurement-sensitive. A small size difference can make the cap too loose to stay seated or too large to install cleanly. Measure First: Confirm the hub bore or the old cap flange diameter is approximately 2.72". Install Evenly: Tap the cap in squarely around the edge to avoid denting or cocking the cap in the hub. Confirm Cap Style: This DC-275 listing is for a solid cap. Use a lubed / rubber-plug cap only if your hub requires grease access through the cap. R&P Knowledge Hub Compatibility: Compatible with trailer hubs that use a 2.72" drive-in dust cap. Always verify by measurement before ordering. Vehicle / System Fit: Trailer wheel hub and bearing cap applications, commonly seen on many heavier trailer axle hubs where the hub bore measures 2.72". Installation Notes: Clean the hub bore before installation, start the cap straight, and tap evenly around the outer lip until seated. Performance Insight: A properly sized dust cap helps keep grease inside the hub while reducing exposure to dirt, moisture, and road debris. Brand & Fitment Note Selling Brand: R&P Carriages aftermarket trailer hub dust cap Application Reference: DC-275 / TRDC-275 style references are used for size and application identification. The key fitment measurement is the 2.72" drive-in diameter. What This Means: This listing is for one solid steel trailer hub dust cap, not a guaranteed OEM-branded item unless specifically stated on your invoice or packaging. Before Ordering: Verify the cap diameter, hub bore, cap style, and axle hub application before installation. R&P Repair Insight Replace a missing, damaged, loose, or badly dented dust cap before towing. A poor cap fit can allow contamination into the hub area and may allow grease to escape during service. Old Cap Check: If the old cap is available, measure the outside flange diameter with calipers. Hub Bore Check: If the cap is missing, measure the inside bore of the hub where the cap seats. Style Check: Match solid-to-solid unless your hub setup requires a rubber-plug relube cap. Features Solid Non-Lube Design Standard solid dust cap for applications that do not require grease access through the cap face. 2.72" Drive-In Diameter Designed for compatible trailer hubs using a 2.72" cap bore, often referred to as a 2-3/4" nominal cap size. Zinc-Plated Steel Construction Steel cap with zinc plating to help resist corrosion in normal trailer hub service. Trailer Hub Protection Helps cover the hub opening and reduce bearing exposure to dirt, moisture, and road debris. Included Components Quantity Item 1 Solid 2.72" O.D. steel trailer hub dust cap / grease cap Not Included Rubber plug, grease zerk, bearings, races, seals, hub, or installation hardware Important Fitment Note: This cap is commonly described as a 2-3/4" dust cap, but the verified drive-in diameter is 2.72". Measure your hub bore or old cap before ordering. This is the solid DC-275 style cap, not the DC-275L relube / rubber-plug style. Shop Matching Trailer Hub Parts DC-275 dust cap, DC275 dust cap, TRDC-275 style dust cap, 2.72 inch trailer dust cap, 2-3/4 inch nominal dust cap, solid trailer hub cap, solid grease cap, steel dust cap, zinc plated trailer dust cap, trailer hub dust cap, drive in grease cap, 6K axle dust cap, 7K axle dust cap, 8K axle dust cap, R&P Carriages trailer hub parts Show more