John Deere Backhoe Loaders: 315C (Before Serial Number 740893)
Key Notes:
Part Number: RE23999-KIT
Fits Boom Cylinder: RE23999
Includes: RE20595 Rod Seal Kit and AH212103 Bore Seal Kit — complete seal kit for both rod and bore ends
Rod Diameter: 50mm
Bore Diameter: 115mm
Weight: 1 lb (0.45 kg)
Manufacturer: Bulldog / Hercules Hydraulics — Made in USA
Application: Boom cylinder seal kit — restores hydraulic integrity to the boom lift cylinder on John Deere 315C backhoe loaders built Before Serial Number 740893
Serial Number Note: This is the early-serial version for 315C machines Before Serial Number 740893 — confirm your serial number before ordering. For late-serial 315C machines After Serial Number 740893 see part RE31721-KIT
Condition: Made in USA replacement part
Common Use Case or Symptoms: Use when the boom cylinder is leaking hydraulic fluid at the rod seal or exhibiting bypass at the piston — symptoms include boom drift under load, visible oil weeping at the cylinder rod, or loss of boom lifting capacity on John Deere 315C backhoe loaders.
Why Choose Broken Tractor:
✅ Complete Two-Kit Solution: Includes both the RE20595 rod seal kit and AH212103 bore seal kit in one order — everything needed for a full boom cylinder reseal in a single purchase
✅ Made in USA by Bulldog / Hercules Hydraulics: Premium American-made seals engineered for the demanding hydraulic pressures of John Deere backhoe boom cylinder applications
✅ Serial Number Verified Fitment: Correctly identified for early-serial 315C machines Before Serial Number 740893 — eliminates the guesswork of ordering the wrong kit for your machine
$119.00
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
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