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12_296951cc-9166-4cef-9bde-a421304ae483 - Northline Parts

Oil Pressure Switch for Perkins 400 Series Diesel Engines – 185246190

SKU: NLT2T03372
$33.29 In Stock
$33.29
Sale price  $33.29 Regular price 
Ships for free in 2–4 business days.
This engine oil-pressure switch cross-references Perkins 185246190 for compatible 400-series diesel engines.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Brand / Equipment Compatible Models / Engines Fitment Notes
Perkins 403D-11, 403D-15, 404D-22 Current documented 185246190 applications
Perkins 403C-15, 404C-22 references Marketplace references; verify engine serial and original part number

Product Overview

The oil-pressure switch is an engine-protection input that changes state according to lubrication pressure. A failed switch or damaged connector can cause a false low-oil-pressure warning, nuisance shutdown, or no warning at all, but genuine low oil pressure must always be ruled out before blaming the switch.

Current Perkins parts references identify 185246190 for 403D-11, 403D-15 and 404D-22 engines. Marketplace listings also associate the number with earlier 403C/404C applications; because 400-series engine revisions can differ, confirm the engine serial number and original switch number.

Key Features & Performance

  • Oil-pressure monitoring/protection switch
  • Perkins reference 185246190
  • Used on multiple Perkins 400-series industrial diesel engines

Reference Part Numbers

  • 185246190

Product Details

  • Component: Engine oil pressure switch

What to Verify Before Ordering

Confirm actual engine model/serial and part number 185246190. If a low-pressure warning is present, verify real oil pressure with the proper test procedure before replacing the switch.

Frequently Asked Questions

Can a bad switch create a false low-oil-pressure warning?
Yes, but low oil pressure can damage an engine quickly, so actual pressure should be verified rather than assuming the switch is faulty.

Is this a pressure gauge sender?
It is listed as an oil pressure switch; switch-type and variable-resistance gauge senders are not interchangeable unless the application specifically calls for the same part.

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