Komatsu Engine Cock Ass'Y Oil Drain 6738-21-5610

Komatsu Engine Cock Ass'Y Oil Drain 6738-21-5610 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6738-21-5610 is listed as Cock Ass'Y Oil Drain. Search also by the no-dash alternate number 6738215610.

Engine book references

This part appears in Komatsu engine parts book paths such as:

• ENGINES / S6D102E-D-1F-6S S/N 26200163-UP / ENGINE / OIL LEVEL SENSOR AND OIL GAUGE(#26200929-) (A2110-01D3A)
• ENGINES / S6D102E-D-1FL-6S S/N 26200163-UP / ENGINE / OIL LEVEL SENSOR AND OIL GAUGE(#26200929-) (A2110-01D3A)
• ENGINES / SAA4D102E-2D-4 S/N 26274903-UP / ENGINE / OIL PAN AND SUCTION TUBE(#26300902-) (A2119-01B6)
• ENGINES / SAA4D102E-2E S/N 30204043 AND UP / ENGINE / OIL PAN AND SUCTION TUBE (A2119-01B5)
• ENGINES / SAA4D102E-2E-4 S/N 26274903-UP / ENGINE / OIL PAN AND SUCTION TUBE(#26304081-) (A2119-01B5)
• ENGINES / SAA4D102E-2E-4 S/N 26277757-UP / ENGINE / OIL PAN AND SUCTION TUBE(#26304081-) (A2119-01B5)

This part appears in 124 Komatsu engine book paths in our reference data.

Verification note

Always confirm final fitment by engine model, serial range, diagram callout, and part number before ordering. Hub references are provided to help buyers find the right engine section and related parts faster.

Keep Ops Moving

19PARTS organizes Komatsu engine parts around searchable engine-model hubs so rebuild shops, equipment owners, and fleet teams can identify parts and keep repairs moving.