Front Planetary Gear Snap Ring for Cat Backhoe 416C 442D – 1306878

Fits Models At A Glance:

Front 4x4 axle planetary gear retaining snap ring — find your model and match your serial number prefix below. This ring fits both the early and later planetary designs used on these machines.

• Cat 416C: S/N 4ZN1-50156, 5YN1-16589, 1WR1-10736, 1XR1-02261
• Cat 426C: S/N 1CR1-01085, 1ER1-Up, 1MR1-01179, 1NR1-Up
• Cat 428C: S/N 8RN1-Up, 2CR1-Up
• Cat 436C: S/N 1FR1-01421, 9JN1-Up, 1PR1-01815, 1RR1-Up
• Cat 438C: S/N 1JR1-01155, 1TR1-02096
• Cat 416D: S/N BFP1-9559, BKG1-2499, BGJ1-01049
• Cat 420D: S/N FPD1-14495, BLN1-7965, BKC1-920, BMC1-Up
• Cat 424D: S/N BGP1-01612
• Cat 428D: S/N BBL1-00712, BMT1-03227
• Cat 430D: S/N BNK1-04366, BML1-03502
• Cat 432D: S/N BLD1-03844
• Cat 438D: S/N BPE1-00742
• Cat 442D: S/N BRG1-01122

Key Notes:

• Part Numbers: 1306878 (Cat 130-6878)
• Type: Front axle planetary gear retaining snap ring
• Axle: ZF 4x4 (4WD) front axle wheel-end planetary
• Quantity Required: Three per planetary — sold individually
• Fitment Note: Fits both the early and later planetary designs, so no pin-length check is needed for this part.
• Related Parts: Retains the planet gear in planetary carrier 2642766. For a complete rebuild (carrier, three gears, bearings and snap rings), see kit 2642766-Kit.
• Application: Seats in the groove on the planet gear pin to retain the gear and bearings in the front wheel-end planetary.
• Condition: Aftermarket replacement part

Common Use Case or Symptoms: Replace whenever the planetary is opened for gear or bearing service, or if a ring is distorted, loose or missing — replace all three together.

Why Choose Broken Tractor:

• ✅ Fits Both Early and Late Cat Planetaries – one ring, no guesswork
• ✅ Sold Individually — Three per Planetary – order the exact set you need
• ✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses