Air and Fuel Oxygen Sensors, Controllers and Components

NATIONAL

OIL SEAL

$29.49

SKU: N038 450604

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

Easy — 1–2 hours

Description

The PAI 450604 is a temperature sensor kit designed for select Navistar applications. This kit includes a temperature sensor, harness, shrink tubing, and butt connectors. It features a 2-pin rectangular connector and a 3/8"-18 NPT thread size with an overall length of 2.10". The OEM reference numbers for this part are Mack 4333-1889995C91 and Navistar 1889995, 1889995C91.

Fitment

Fitment Guaranteed

Don’t gamble
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

BrandNATIONAL
Part NumberN038 450604

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.

View Full Return Policy