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DOUGLAS EQUIPMENT Miami · Since 1955
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CTP Piston / Liner

CTP-4N7693

3306, 3306B 4N7693 — 637D

CTP piston / liner / ring assembly 4N7693 for 637D. Forged steel piston, induction-hardened ring grooves, plasma-coated top ring. Standard, oversize and undersize variants available. Application: 639D, 814B, 815B.

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

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OEM Cross-References

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

  • 4N7693 OEM

Compatible Machines

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

  • 637D
  • 639D
  • 814B
  • 815B
  • 816B
  • 966C
  • 966D
  • 977K
  • 977L
  • 980B
  • D250B

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CTP-0332381

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CTP-0332382

.25MM / 0.010IN 0332382 — 416C

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CTP-0332383

.50MM / 0.020IN 0332383 — 416C

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Available now

Need CTP-4N7693 or related parts?

Send your machine model + part list. We confirm cross-reference, stock, and LATAM documentation in hours.

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