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Water Pump Compatible With John Deere 690B/693B/7020 1975-1985 404 Series Diesel (6404D) 6.6L 6-Cyl

TRE20023A3
OEM PART NUMBERS:
• John Deere: RE20023 (Primary OEM water pump part number)
• John Deere: R50408 (Casting number with hub)
• John Deere: SE500915 (Alternate OEM reference)
• John Deere: AR54578 (Alternate OEM reference)
• John Deere: 1406-6224 (Alternate OEM reference)

SPECIFICATIONS:
• Drive Type: Belt Driven
• Engine Family: John Deere 6000 Series (404)
• Displacement: 6.6L
• Condition: New

APPLICATION:
• Compatible with John Deere 4430/4630 (1975-1982)
• Compatible with John Deere 5200/5400/5440/5460 (1975-1985)
• Compatible with John Deere 690B/693B/7020 (1975-1985)

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals such as Nickel which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Was: $618.49
Sale: $353.42
Save: 43%
Save: $265.07
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Description

JOHN DEERE UTILITY TRACTORS:
• John Deere 4430/4630 6.404D or 6.466D Diesel (1975-1982)

JOHN DEERE FORAGE HARVESTERS:
• John Deere 5200/5400/5440/5460 404 Series Diesel (1975-1985)

JOHN DEERE CONSTRUCTION & POWER:
• John Deere 690B/693B/7020 404 Series Diesel (1975-1985)


IMPORTANT:
Large water pump WITH integrated cast hub for John Deere 404-series (6.404D) 6.6L 6-cylinder engines. Supersedes AR54578 and SE500915. Casting R50408 includes the hub — unlike TRE60489 which ships without hub.
Fits JD 4430/4630 tractors, 5200-5460 forage harvesters, 690B/7020 construction, and power units from 1975-1985. The 6.404 was the predecessor to the 6.466. Do NOT substitute a 6.466 pump — different mounting pattern.
⚠️ Confirm 6.404D engine (6.6L) — not 6.466D (7.6L) which uses different pump.

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Shipping Information

  • Item Requires Shipping
  • 38.0 lbs.
  • W12.0000” x H11.0000” x L16.0000”
  • Free Shipping!

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