Engines and Components› Oiling Systems

Mahle

~(0.3 lbs. 3X3X2)~ ThermostatHeavy Duty Cms. 102mm 4.017 IN Bore B 5.9L (OE#5292744)

$34.03

SKU: M002 TX21187

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Mahle TX21187 is a thermostat insert designed for Cummins applications. It is manufactured to OE standards and features a Mahle Original 4B-3.9 description.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMahle
Part NumberM002 TX21187

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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