KOMATSU-PC400-7/450-7 Carrier Roller Assembly for crawler excavator undercarriage/OEM quality rollers factory in China
Product Specifications
Komatsu PC450 Carrier Roller Specifications
Type: Upper carrier roller (may also be called "top roller" or "track roller")
Compatible Models:
Komatsu PC450-5, PC450-6, PC450-7, PC450-8 (confirm exact model)
Some rollers may also fit similar-size machines like PC400 or PC490 (check part numbers)
Material: High-carbon steel for durability
Sealing: Multi-lip seals to prevent dirt & moisture ingress
Lubrication: Grease-filled (some may be sealed & lubricated for life)
Replacement Options
OEM (Komatsu Genuine Parts) – Best fit & longevity, but higher cost.
Example part numbers:
PC450-5: 600-211-3130 (varies by exact serial number)
PC450-7: Check with Komatsu dealer for latest part #
High-Quality Aftermarket (ITR, Berco, Top King, Hercules) – More affordable, but verify compatibility.
Reconditioned Rollers – Cost-effective if in good condition.
