Brake Master Cylinder for Caterpillar 910 Compact Wheel Loader | 5G1297

Fits Models At A Glance:

• Caterpillar Compact Wheel Loaders: 910

Superseding & Cross-Reference Numbers:

• Caterpillar publishes no replacement or superseding number for 5G-1297.
• Caterpillar lists these related items in the same brake pedal group, stocked separately: gaskets 5H-3703 and 4H-6145, bolt 4H-6143, and brake control valves 5K-3713 and 7K-4942.

Key Notes:

• Part Number: 5G1297 (Caterpillar reference 5G-1297)
• Position: Brake Pedal Assembly, Master Cylinder
• Function: Converts brake pedal force into hydraulic pressure at the brakes, with piston travel proportional to pedal effort
• Material: Carbon steel
• Weight: 6.6 lbs.
• Condition: Aftermarket replacement part
• Application: Replaces the brake master cylinder in the pedal assembly on the Caterpillar 910 compact wheel loader
• Shipping Restrictions: Ships to the lower 48 US states only
• Note: Cylinder only - gaskets, mounting bolts, brake control valve, fluid and lines are not included. The Costex catalog lists no serial number breaks for the 910 on this part; compare the cylinder you are removing before ordering.

Common Use Case or Symptoms:

Order this when the pedal goes long or spongy on a 910 and bleeding does not bring it back - a loader working a yard stops and starts constantly, so a master cylinder here gets more cycles in a week than a highway truck sees in a year.

Why Choose Broken Tractor?

• ✅ Pedal Assembly Cylinder: Mounted in the pedal assembly itself, which is where the 910 puts the master cylinder rather than on a remote bracket.
• ✅ Carbon Steel Body: The material Caterpillar specifies for this cylinder, not a lighter substitute that will not take the pedal load.
• ✅ Bleeding Will Not Fix It: Once the internal cups are bypassing, no amount of bleeding restores the pedal - the cylinder has to come off.