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DOUGLAS EQUIPMENT Miami · Since 1955
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CTP Engine Bearing

CTP-3J8688

CYLINDER GP-APRON 3J8688 — 630B

CTP connecting rod / main bearing 3J8688 for 630B engine. Tri-metal construction (steel back / copper-lead / babbitt), precision-bored. Standard and undersize available — critical for engine rebuild kits. Application: 631B, 631D, 631E.

In Stock — Miami Warehouse LATAM · 0% Pricing Eligible 30-50% vs OEM

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Send your machine model + serial number. We confirm exact cross-reference, USD price, lead time, and LATAM documentation.

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OEM Cross-References

CTP aftermarket reference cross-references the following OEM part numbers:

  • 3J8688 OEM

Compatible Machines

Documented fitment for the following machines. Verify with your machine serial number for exact match.

  • 630B
  • 631B
  • 631D
  • 631E
  • 631G
  • 637E
  • 637G
  • 561M
  • 630B
  • 631B
  • 631D
  • 631E
  • 631G
  • 637B

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Available now

Need CTP-3J8688 or related parts?

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