10-50 - Oil Cap O-Ring

The 10-50 Oil Cap O-Ring is a precision-engineered sealing gasket designed to fit under bolt-on oil and hydraulic reservoir caps. Made from premium nitrile rubber, it delivers a reliable, leak-proof seal to keep fluids in and contaminants out, ensuring optimal performance and hassle-free maintenance for trailers and equipment.

Features:

• Molded nitrile (Buna-N) rubber for excellent resistance to oils, fuels, and hydraulic fluids
• Creates a tight, reliable seal under reservoir caps
• Flexible and durable for repeated removal and reinstallation
• Withstands temperatures from –40°F to 250°F (–40°C to 121°C)
• Drop-in replacement—no special tools required

Specifications:

• Part Number: 10-50
• Material: Nitrile (Buna-N) rubber
• Inner Diameter (ID): 1.750" (1 3/4″)
• Cross-Section Thickness: 0.125" (1/8″)
• Temperature Range: –40°F to 250°F (–40°C to 121°C)
• Application: Seals bolt-on oil caps on hydraulic reservoirs, gearboxes, and pump housings
• Includes: (1) Oil cap O-ring

Fitment:

• Fits standard bolt-on oil caps with a 1.750" ID sealing surface
• Common on trailer surge brake actuators, hydraulic pump reservoirs, and gearbox fill ports
• Always verify your cap’s recess dimensions for proper fit
• Fits 4" Plastic Oil Cap 21-36 (Sold Separately)