Case Construction Genuine 190493A1 Brake Piston O-Ring “ For Carraro Rear Axle (0.139³ Thk × 8.234³ ID, 90 Duro)

The Case Construction Genuine 190493A1 Brake Piston O-Ring is a critical sealing component used in Carraro rear axle brake piston assemblies. Designed to withstand high hydraulic pressure, heat and continuous braking cycles, this O-ring ensures effective sealing between the brake piston and housing, preventing oil leakage and pressure loss.

Manufactured from high-quality elastomer compound with 90 Shore A hardness, the O-ring offers excellent resistance to wear, deformation and hydraulic oil degradation. Its precise dimensions — 0.139″ thickness × 8.234″ inner diameter — ensure perfect OEM fitment and consistent braking performance.

Using a genuine OEM-spec O-ring is essential to maintain brake efficiency, prevent contamination and avoid premature brake failure in heavy-duty construction equipment.

Technical Specifications

• OEM Part Number: 190493A1
• Component: Brake Piston O-Ring
• Thickness: 0.139 inch
• Inner Diameter (ID): 8.234 inch
• Hardness: 90 Duro (Shore A)
• Application: Carraro Rear Axle Brake Assembly

Carraro Equivalent Part Numbers

• 133757
• 415099

Cross Reference / Interchange Part Numbers

This O-ring is interchangeable with the following OEM and aftermarket references:

• 200183427400 – ACE
• S7601570640 – Escorts
• 0604AAB00171N – Mahindra
• 6193402M1 – Manitou
• 190493A1 – CNH / Argo Group
• 2246081 / 224-6081 – Caterpillar
• AC1337570000 – ACE
• TE31916 – Tata
• RJ90-02-248 – SEC-RJMT
• 7393995 – Doosan
• 2005230 / 2010587 – Bull
• 219000500 – Randon
• 5371000166 – Yanmar Compact
• 6193402M1 – Mecalac / Terex
• 7000115 – Hydrema
• 852041340 – Dressta / Liugong
• C77AK43 – Cukurova
• CA0133757 – Komatsu
• PP9161078 – Terex
• S0642270 – Hidromek
• VOE11709338 – Volvo

Applications

Used in Case Construction backhoe loaders and machines equipped with Carraro rear axles, specifically within:

• Brake piston sealing
• Rear axle wet brake systems

Why Use Genuine OEM Brake O-Rings?

• Maintains correct hydraulic pressure
• Prevents brake oil leakage and contamination
• Ensures consistent braking response
• Extends brake and axle service life
• Reduces downtime and repair costs