20 MIDWEST WHEEL COMPANIES CALIPERS / WHEEL STUDS Clamshell Quantity Diameter Shoulder Length Thread Size Suggested Nut # - 2023134013 6 0.617” knurl 2” 1/2”-20 122076 - 2025047362 6 0.545” knurl 2” 1/2"-20 122076 - 2023134014 4 0.617” knurl 2-5/16” 9/16”-18 134581 DX 007-132-00 2024055282 4 0.689” knurl 2-5/16” 9/16”-18 134581 DX 007-232-00 2024055283 4 0.689” knurl 2-3/4” 5/8”-18 176321 or 723971 DX 007-115-00 2024055284 4 0.689” knurl 3-7/16” 5/8”-18 176321 or 723971 - 2024055285 4 1.007” knurl 4-13/16” M22-1.5 352303 Retail Clamshell # Clamshell Quantity 10-Pack # Diameter Shoulder Length Thread Size Suggested Nut # 2023134013 6 2025027413 0.617" knurl 2" 1/2"-20 122076 2025047362 6 2025027416 0.545" knurl 2" 1/2"-20 122076 2023134014 4 2025027412 0.617" knurl 2-5/16" 9/16"-18 134581 2024055282 4 2025027414 0.689" knurl 2-5/16" 9/16"-18 134581 2024055283 4 2025027415 0.689" knurl 2-3/4" 5/8"-18 176321 or 723971 2024055284 4 2025027411 0.689" knurl 3-7/16" 5/8"-18 176321 or 723971 2024055285 4 2025027417 1.007" knurl 4-13/16" M22-1.5 352303 WHEEL STUDS LUG NUTS 2024055283 2024055285 2024055284 2024055282 2025047362 2023134013 2023134014 Wheel Studs Single Brown Box # Axle Capacity Hub Bolt Pattern 2025013504 3,500 - 6,000 lbs. 5 on 4-1/2” 6 on 5-1/2" 2025013505 7,000 - 8,000 lbs. 8 on 6-1/2” 2025013506 10,000 - 16,000 lbs. 8 on 6-1/2” 8 on 275 mm Single Brown Box # Axle Capacity Bolt Pattern Hub Bolt Pattern 2025013499 3,500 lbs. Four-bolt 5 on 4-1/2” 2025013500 5,200 - 6,000 lbs. Five-bolt 6 on 5-1/2” 2025013501 7,000 lbs. Five-bolt 8 on 6-1/2” 2025013502 8,000 lbs. Four-bolt 8 on 6-1/2” 2025013503 10,000 - 16,000 lbs. Seven-bolt 8 on 6-1/2” 8 on 275 mm • Caliper holds and protects pistons for your hydraulic disc brake • Custom caliper bodies designed for easy install • Self-adjusting design ensures smooth, even braking • Rigorous end-of-line inspection and pressure testing ensure quality and performance • Durable, cast-iron construction prevents flexing to keep braking torque consistent • Hydraulic brake actuator rated at 1,600 psi or above (sold separately) required to activate brakes • Universal design works with driver and passenger side brakes • Includes disc brake pads, fittings, and mounting bolts • Zinc dichromate, anti-corrosion finishes provide rust resistance for iron caliper bodies and brackets • Durable, cast-iron construction prevents flexing to keep braking torque consistent • Universal design works with driver and passenger side brakes • Easy, DIY installation • Includes one caliper mounting bracket Disc Brake Calipers Disc Brake Calipers Brackets
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