Description Part Number: 131139 Why replace the roller?• OEM roller diameter keeps sensor geometry in spec, avoiding out-of-range voltage.• Phosphate-coated steel resists corrosion in salt and road grime.• 10-minute swap with basic hand tools; no pedal recalibration required. Cross-reference & interchange• Williams Controls: 131139 / 131139KIT• Volvo Trucks: 3945437• TRP / PACCAR aftermarket: 131139 Fits these pedal assemblies• WM526 (10°, 20°, 30° mounting angles) electronic pedals • Used on most Peterbilt & Kenworth models with PACCAR MX or Cummins ISX engines, plus Volvo VN/VHD series that specify WM526 pedals. Not sure? Match the WM526 tag on your pedal or call our parts pros at 606-864-9711. Specifications OEM Part # 131139 Weight 0.05 lb (0.02 kg) Material Hardened steel, black-phosphate finish VMRS 044-005-055 Fast shipping you can trust• In stock: orders placed before 3 PM ET ship the same day.• Free ground freight on orders over $500.• Backed by our 30-day hassle-free returns. Need other Williams Air Control parts? Browse the full engine section for sensors, harnesses and complete assemblies.
