Skip to main content
DOUGLAS EQUIPMENT Miami · Since 1955
ES
CTP Piston / Liner

CTP-4N0685

CAMSHAFT BUSHING 4N0685 — 3408B

CTP piston / liner / ring assembly 4N0685 for 3408B. Forged steel piston, induction-hardened ring grooves, plasma-coated top ring. Standard, oversize and undersize variants available. Application: 3408C, 3408E, 621B.

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

Need a Quote?

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

Call (305) 888-3700 Email Quote Request WhatsApp (LATAM)

Collect multiple parts, send all at once.

OEM Cross-References

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

  • 4N0685 OEM

Compatible Machines

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

  • 3408B
  • 3408C
  • 3408E
  • 621B
  • 621E
  • 621F
  • 623E
  • 623F
  • 627B 3412C
  • 3412D
  • 3412E

Related Parts in Piston / Liner

CTP-0332379

MAIN BEARING 0332379 — .25MM

View →

CTP-0332381

.75MM / 0.030IN 0332381 — 3054B

View →

CTP-0332382

.25MM / 0.010IN 0332382 — 416C

View →

CTP-0332383

.50MM / 0.020IN 0332383 — 416C

View →
Available now

Need CTP-4N0685 or related parts?

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

✓ Quote in hours ✓ Stock confirmed ✓ LATAM applied
+1 (555) 820-5222 Search by OEM number →
← Back to full parts catalog
(305) 888-3700
Call WhatsApp Quote