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Engineered for Class 7–8 commercial tractors, freight trailers, refuse haulers, and vocational fleets across North America, the 4707 Repair Kit provides a comprehensive foundation hardware overhaul set for heavy-duty drum brakes. Designed for broad compatibility across popular Q and Q-Plus brake profiles, this kit services 4515, 4515Q, 4515X, CA32/4516Q, CA33/4718Q, 4707Q, 4705, 4711Q, 4702, and 4710 brake shoes. Each box bundles high-tensile dual-spring return systems, quick-fit anchor pin retention clips, precision-ground cam rollers, and anti-friction bushings to restore balanced mechanical return action, stop shoe drag, and minimize fleet PM turnaround time.
Severe thermal cycling, heavy gross axle weight ratings, and intense stop-and-go duty cycles inevitably lead to wheel-end hardware fatigue. Weakened return springs and grooved rollers prevent complete shoe retraction, triggering uneven lining taper wear, brake dragging, and costly drum heat checking.Our 4707 Repair Kit provides multi-application flexibility, tight OEM dimensional tolerances, and severe-duty metallurgy tailored to North American long-haul and regional distribution fleets.
Fatigue-Resistant Metallurgy & Induction-Hardened Rollers
Manufactured from high-tensile alloy spring steel, every return and retaining spring undergoes computer-controlled oil quenching and heat treatment. This metallurgical process maintains balanced retracting pull force under continuous brake drum temperatures exceeding 750°F (400°C). Precision-ground alloy steel rollers and anchor pins feature induction-hardened wear zones to eliminate camshaft grooving and flat spots under standard 20,000 to 23,000 lbs GAWR commercial payloads.
Severe-Duty Anti-Corrosion Protection & Universal Fleet Servicing
All steel hardware components receive an electro-plated zinc-dichromate or heavy phosphate finish that shields against road salt, calcium chloride, and harsh winter moisture. By bundling all necessary springs, pins, retainers, and bushings into a single master SKU, maintenance shops can service multiple shoe profiles—including 4515, 4515Q, 4515X, CA32/4516Q, CA33/4718Q, 4707Q, 4705, 4711Q, 4702, and 4710—without stocking fragmented loose hardware.
Key Features & Specifications
Frequently Asked Questions (FAQ)
Q1: Which brake shoe models are compatible with this 4707 Repair Kit?
A: This kit is engineered to service North American commercial drum brake setups utilizing 4515, 4515Q, 4515X, CA32/4516Q, CA33/4718Q, 4707Q, 4705, 4711Q, 4702, and 4710 foundation brake shoes.
Q2: Can this hardware kit be used across both steer, drive, and trailer axles?
A: Yes. As long as the foundation brake uses compatible Q / Q-Plus shoe geometry matching the listed models, this hardware set provides correct spring rates and roller dimensions for drive, steer, and trailer wheel-ends.
Q3: Why should hardware be replaced during every brake shoe replacement?
A: Operating friction heat permanently degrades spring tension and wears flat spots on rollers. Reusing weakened hardware causes incomplete shoe retraction, continuous brake drag, drum glazing, and uneven lining taper.
Q4: How does the surface coating withstand severe winter highway chemicals?
A: All components receive an industrial zinc-dichromate or phosphate finish that passes strict salt-spray tests, effectively resisting rust from calcium chloride, road salt, and humidity.
Q5: Are private labeling, custom packaging, and palletized bulk shipping supported?
A: Yes. As a direct factory manufacturer, we support custom polybag branding, private-label master cartons, and palletized export packaging for North American parts distributors and fleet suppliers.
Engineered for Class 7–8 commercial tractors, intermodal container chassis, and severe-duty trailers in North America, this 1308E Repair Kit provides a comprehensive foundation hardware overhaul solution. Tailored specifically to service 1308E and 1443E brake shoes on standard 16.5" x 7" drive and trailer axles, each kit contains fatigue-tested heavy-gauge extension return springs, single-anchor pin retention hardware, precision-ground rollers, and anti-seize bushings. This turn-key hardware package eliminates shoe drag, restores balanced mechanical return force, and cuts scheduled preventative maintenance bay turnaround time.
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Tailored for North American commercial truck and trailer fleets running Q-style foundation drum brakes, the 1308Q Repair Kit delivers a comprehensive single-wheel overhaul hardware package. Purpose-built to service standard 1308Q brake shoes, this kit includes heat-treated dual-spring return setups, quick-change anchor pin retainers, precision-machined roller assemblies, and anti-friction bushings. Replacing fatigued wheel-end hardware with this single-SKU bundle prevents shoe chattering, stops uneven lining drag, and accelerates routine shop maintenance turnaround.
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Engineered for Class 7–8 line-haul tractors, dry freight vans, flatbeds, and severe-duty vocational trailers across North America, the 4515E Repair Kit provides a complete foundation hardware overhaul package for Eaton-style 16.5" x 7" commercial drum brakes. Tailored specifically to service 4515E foundation brake shoes, this kit includes heavy-gauge single-anchor return springs, anchor retention hardware, precision-ground cam rollers, and anti-friction bushings. Upgrading worn wheel-end hardware with this single-SKU overhaul set stops shoe dragging, balances return tension, and cuts scheduled maintenance bay downtime.
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Engineered for Class 7–8 commercial tractors, freight trailers, refuse haulers, and vocational fleets across North America, the 4707 Repair Kit provides a comprehensive foundation hardware overhaul set for heavy-duty drum brakes. Designed for broad compatibility across popular Q and Q-Plus brake profiles, this kit services 4515, 4515Q, 4515X, CA32/4516Q, CA33/4718Q, 4707Q, 4705, 4711Q, 4702, and 4710 brake shoes. Each box bundles high-tensile dual-spring return systems, quick-fit anchor pin retention clips, precision-ground cam rollers, and anti-friction bushings to restore balanced mechanical return action, stop shoe drag, and minimize fleet PM turnaround time.
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Engineered for Class 7–8 commercial tractors, regional distribution chassis, and severe-duty vocational trailers across North America, the 4709 Repair Kit delivers a dedicated foundation hardware renewal solution. Tailored specifically to service standard 16.5" x 7" brake assemblies utilizing 4709, 4726, and 4719 brake shoes, this kit integrates fatigue-tested high-tensile return springs, precision anchor pin retention hardware, induction-hardened rollers, and anti-friction bushings. Upgrading worn wheel-end hardware with this single-SKU overhaul set stops shoe dragging, balances mechanical retraction pull force, and cuts preventative maintenance bay downtime.
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Engineered for Class 7–8 commercial tractors, heavy-haul chassis, and severe-duty vocational trailers across North America, the 4720 Repair Kit delivers a dedicated single-wheel foundation overhaul solution. Tailored specifically to service standard 16.5" x 5" and 16.5" x 6" foundation drum brake assemblies using 4715Q and 4720Q brake shoes, each kit bundles fatigue-resistant dual-spring return systems, quick-fit anchor pin retention clips, induction-hardened cam rollers, and anti-friction bushings. This consolidated hardware pack eliminates brake drag, maintains balanced retraction force, and speeds up routine preventative maintenance bay turnaround.
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Engineered for North American intermodal transport, heavy-haul lowboys, and specialized freight carriers running European-spec running gear, the NEW BPW Repair Kit delivers a dedicated single-wheel overhaul solution. Purpose-built to service 420 x 180mm (SN4218) and 420 x 200mm (SN4220) foundation drum brake assemblies using NEW BPW 180 and NEW BPW 200 brake shoes, this kit integrates high-strength extension return springs, heavy-duty pivot rollers, retaining pins, and anti-friction bushings. Replacing worn wheel-end components with this consolidated master hardware set stops shoe drag, balances mechanical return action, and reduces preventative maintenance turnaround hours.
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Engineered for North American intermodal transport, heavy-haul lowboys, and commercial flatbeds running SAF-Holland running gear, the SAF SK9 Repair Kit provides a comprehensive single-wheel foundation overhaul solution. Tailored specifically to service 420 x 180mm (SK9 180) and 420 x 200mm (SK9 200) trailer axle drum systems using SAF/SK9 180 and SAF/SK9 200 foundation brake shoes, this kit integrates high-strength dual-spring return systems, precision SAF-configured anchor pins, retaining clips, induction-hardened rollers, and anti-friction bushings. Upgrading worn wheel-end components with this single-SKU overhaul set stops shoe dragging, balances mechanical retraction pull force, and cuts preventative maintenance bay downtime.
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