null AW-17220743903, GT-K4ZB5X3V
CUMMINS

CUMMINS 4940183 OEM TURBO OIL SUPPLY FITTING (MALE UNION) WITH O-RING – 5.9L & 6.7L

(No reviews yet) Write a Review
SKU:
CUM4940183
MPN:
4940183
Shipping:
Calculated at Checkout
  • CUMMINS 4940183 OEM TURBO OIL SUPPLY FITTING (MALE UNION) WITH O-RING – 5.9L & 6.7L
  • CUMMINS 4940183 OEM TURBO OIL SUPPLY FITTING (MALE UNION) WITH O-RING – 5.9L & 6.7L
$42.00
724-785-4022

Description

Cummins 4940183 — Genuine Turbo Oil Supply Fitting (Male Union) With O-Ring

MPN: 4940183  |  Also Known As: turbo oil inlet fitting, oil feed union, male connector  |  Includes: O-ring (1)

Genuine Cummins male union for the turbocharger oil feed/inlet connection on 5.9L & 6.7L ISB platforms. Restores a leak-free seal and proper oil flow to the turbo. Direct-fit OEM quality; commonly used at the turbo inlet and/or on the feed line depending on application. Sold individually.

Features & Benefits

  • OE sealing with included O-ring for drip-free installation.
  • Correct geometry for Ram 5.9L & 6.7L ISB turbo oil feed locations.
  • Prevents oil starvation at the turbocharger by restoring proper flow.
  • Durable construction to handle heat, vibration, and pressure.
  • Genuine Cummins component—no guesswork on fitment.

Verified Fitment (Automotive)

Year RangeEngineChassis
1998.5–2002 Ram 5.9L ISB (24V VP44) Ram 2500/3500
2003–2007 Ram 5.9L ISB (24V Common-Rail) Ram 2500/3500
2007.5–2024 Ram 6.7L ISB (24V Common-Rail) Ram 2500/3500

Industrial/Off-Highway: Used widely on ISB6.7/QSB6.7 EPA13+—verify by ESN before ordering.

Compatibility Notes:

  • Commonly referenced as a turbo oil inlet/feed fitting (male union) for 5.9L & 6.7L. Some vehicles may use more than one union in the feed circuit—sold individually.
  • Includes O-ring. If your line or turbo has been serviced, inspect mating surfaces and consider replacing the oil feed line at the same time.

Specifications

  • Type: Male union (turbo oil feed / inlet fitting)
  • OE Part Number: 4940183
  • Sealing: O-ring included
  • Quantity Required: 1 per oil-feed connection point (varies by application)

Often Paired With

  • Turbo oil feed line: Cummins 4935577 (’03–’18 typical; verify by VIN/ESN)
  • Fresh oil & filter: after any turbo oil-line service

What’s In The Box

  • (1) Genuine Cummins Male Union / Turbo Oil Inlet Fitting (4940183)
  • (1) O-ring

Installation Tips

  • Clean mating bores and lightly lube the O-ring before installation.
  • Inspect the oil feed line for kinks, cracks, or restrictions; replace if questionable.
  • Torque to factory spec and check for leaks after initial heat cycle.

FAQ

WILL THIS FIT MY 5.9L OR 6.7L CUMMINS RAM?

Yes—this male union fitting is used on Ram 5.9L (1998.5–2007) and 6.7L (2007.5–2024) applications; confirm by VIN/ESN if unsure.

IS THE O-RING INCLUDED?

Yes—this fitting ships with the O-ring for a proper seal at installation.

HOW MANY FITTINGS DO I NEED?

Most trucks need one at the turbo oil inlet; some applications use an additional union on the feed line. Sold individually—check your layout.

WHAT DOES THIS FITTING DO?

It connects the turbo oil feed line and provides a sealed passage to deliver pressurized oil to the turbocharger.

IS THIS A GENUINE CUMMINS PART?

Yes—4940183 is an OEM Cummins component for correct fit and durability.

View AllClose

Additional Information

Vehicle Year:
2003,2004,2005,2006,2007,2008,2009
Vehicle Make:
DODGE
ENGINE:
5.9L,6.7L
View AllClose

0 Reviews

View AllClose

Related Products

Related Products