1P3704 1P-3704 Seal D Ring * SET OF 5 * 4C4784

Five New Aftermarket Replacement D-Ring Seals (Set of 5) for Caterpillar (Cat) Equipment

This listing includes a set of five (5) aftermarket replacement D-ring seals (1P3704 / 1P-3704) designed for Caterpillar hydraulic hose fittings. These rectangular-profile D-ring seals are used at hydraulic hose coupling connections -- specifically Caterpillar XT-5 and XT-6 flange-style fittings -- to prevent hydraulic fluid leakage and contamination at high-pressure joints. The 1P3704 is one of the most commonly replaced individual seals in the Caterpillar D-ring seal family and serves as a refill seal for the Caterpillar 4C-4784 D-ring kit.

Specifications

• Seal Type: D-Ring (Rectangular Cross-Section)
• Inside Diameter: 38.2 mm
• Cross-Section: 3.4 mm x 5.0 mm
• Application: Caterpillar XT-5 and XT-6 hydraulic hose flange fittings
• Quantity: Set of 5

Compatible Equipment

Caterpillar - Hydraulic Excavators: E200, E320, E330, E345, E350, E374, E397, 320B

Caterpillar - Motor Graders: 14M, 16G, 16M

Caterpillar - Scrapers / Earthmoving: 621, 623, 627, 631C, 633C, 637, 641B

Caterpillar - Pipe Layers / Track-Type: 115, 153, 173B, 183B, 193

Caterpillar - Excavators (older series): 215, 215B, 215C, 215D, 219D, 225, 225D, 227, 229, 229D, 231D, 235, 235B, 235C, 235D, 245, 245B, 245D

Caterpillar - Underground Mining / Articulated Trucks / Wheel Loaders: D346, 1090, 10S, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391

This seal is used across a broad range of Caterpillar construction, mining, and earthmoving equipment wherever XT-style hydraulic hose connections are present. Verify part number against your machine's service manual before ordering.

Replaces Part Number(s):

1P3704, 1P-3704, 4C4784 (kit reference), 6J3625, 5J1357, 8D4518, 781982, 1P304

Aftermarket Interchange Numbers

CTC-1P3704, RCAT-1P3704, CA1P3704

New aftermarket replacement part - not remanufactured, not used.