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Engine Thermostat Compatible With Cummins B3.3/4B3.3/Qsb3.3/Qsb3.3 Cm2150 2007-Present 180°F

C3800884A1
OEM PART NUMBERS:
• Cummins: 3800884 (Primary OEM number)

SPECIFICATIONS:
• Type: Element
• Opening Temperature: 180°F (82°C)
• Engine: B3.3/QSB3.3
• Condition: New

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 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: $100.59
Sale: $57.48
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Description

CUMMINS INDUSTRIAL ENGINES:
• Cummins B3.3/4B3.3/QSB3.3/QSB3.3 CM2150 B3.3/QSB3.3 3.3L Diesel (2007-present)


IMPORTANT:
180°F thermostat for Cummins B3.3/QSB3.3 3.3L engines. This is the compact 4-cyl Cummins found in Case/New Holland skid steers, Doosan mini excavators, and various industrial/generator applications.
The #1 ordering mistake: the B3.3/QSB3.3 is NOT the same as the larger B3.9/4BT or B5.9/6BT Cummins engines — they use completely different thermostats. The QSB3.3 CM2150 variant is the electronic-controlled version.
Failure symptoms: slow warmup, overcooling, engine derate on electronic QSB3.3 if coolant temp stays below threshold, or rapid overheating if stuck closed.
⚠️ Verify B3.3/QSB3.3 (3.3L) — NOT B3.9/4BT (3.9L).

Details

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  • 0.4 lbs.
  • W4.0000” x H4.0000” x L4.0000”
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