Home - Return to Previous Page
Click on image to zoom

Engine Oil Pump Compatible With Various T550/T590 2010-2025 Qsb 4.5L Diesel (Cummins Qsb4.5)

C4939586A3
OEM PART NUMBERS:
• Cummins: 4939586 (Primary OEM number - QSB 4.5)
• Cummins: 3926203 (Cross-reference number)
• Cummins: 4939587 (Related variant)
• Cummins: 5273937 (Cross-reference number)

SPECIFICATIONS:
• Drive Type: Gear-driven
• Gear Type: Spur Gear
• Drive Gear Teeth: 22
• Engine Family: QSB 4.5
• Displacement: 4.5L
• Condition: New

APPLICATION:
• Compatible with Cummins Generator Sets (2004-2025)
• Compatible with Various S510/S530/S550/T450 (2010-2025)
• Compatible with Various 524-50/527-58/535-140/535-125 (2010-2025)

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: $338.28
Sale: $193.30
Save: 43%
Save: $144.98
Qty:
Free Shipping!

Description

POWER GENERATION:
• Cummins Generator Sets QSB 4.5L Diesel (2004-2025)

CONSTRUCTION EQUIPMENT:
• Various S510/S530/S550/T450 QSB 4.5L Diesel (2010-2025)
• Various T550/T590 QSB 4.5L Diesel (2010-2025)

MATERIAL HANDLING:
• Various 524-50/527-58/535-140/535-125 QSB 4.5L Diesel (2010-2025)


IMPORTANT:
Oil pump for Cummins QSB 4.5L — a 4-cylinder turbo diesel used in Bobcat skid steers (S510-T590), generators, and material handling equipment. Spur gear type. Cross-refs: 3926203, 4939587, 5273937. Note: 4939587 is the 6-cyl (5.9L/6.7L) variant — do NOT interchange 4-cyl and 6-cyl B-series pumps without verifying fitment.

The QSB 4.5 is a common-rail electronic engine with ECM monitoring. Failure symptoms: ECM derate codes, low pressure warnings on dash, turbo bearing noise. Check ECM fault history — electronic engines log pressure events. On Bobcat machines, intermittent low-pressure shutdowns during aggressive operation are the primary complaint. Inspect pickup screen and check oil level first.

⚠️ Fits QSB 4.5L (4-cyl). Verify engine is NOT QSB 5.9/6.7 (6-cyl).

Details

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W8.0000” x H6.0000” x L10.0000”
  • Free Shipping!

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.