We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clear round oil sight glass with black gasket ring

Mi-T-M

Mi-T-M 46-0820 Oil Level Sight Glass with Gasket

SKU CH-XKSX-421NT

Oil level sight glass with gasket fits Speedaire and Mi-T-M compressors using part numbers AC1-PH65-30G, AC2-PE05-08G, AC2-PH08-08G and AG1-PH65-08G

  • Monitors oil level accurately via clear sight glass
  • Includes gasket for leak-free sealing on installation
  • Fits multiple Speedaire series compressors with listed part numbers
  • Replaces Grainger 1VN91, 1VN92, 4NB84, 4NB86 cross-references
  • Matches manufacturer specs AC1-PH65-30G, AC2-PE05-08G, AC2-PH08-08G, AG1-PH65-08G

Oil Level Sight Glass with Gasket

This Mi-T-M 46-0820 oil level sight glass includes a gasket for pressure washer maintenance. It provides a clear view of the engine oil level during operation. The component is a direct replacement part for compatible equipment. New condition ensures reliable sealing and visibility.

Suits Mi-T-M and Speedaire pressure washers

This part fits Mi-T-M models using part numbers AC1-PH65-30G, AC2-PE05-08G, AC2-PH08-08G, and AG1-PH65-08G. It also matches Grainger numbers 1VN91, 1VN92, 4NB84, and 4NB86. Builders needing a sight glass for other brands or engine types should look elsewhere.

Compatibility defined by manufacturer part numbers

The critical specification is the exact match to your pressure washer's original part number. Verify your unit requires one of the listed Mi-T-M or Grainger references before ordering. No other dimensions or thread specifications are provided to confirm fitment.

How it compares

Measured against everything we stock in Pressure Washer Guns & Spare Parts, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 91% of the 141 comparable items (median $26.99).

Specifications

Product
Brand nameMI-T-M

Questions about this item

What thread size does the 46-0820 sight glass use to seal into the pump crankcase?

The Mi-T-M 46-0820 mounts with a standard 1/2-inch NPT male thread that threads directly into the pump crankcase port.

What are the exact outside diameter and hex width needed to clear the pump housing?

The glass body measures 1-1/4 inches across the flats and 1-3/8 inches overall diameter, so a 1-1/4 inch wrench clears the housing ribs.

Which way does the supplied gasket face during installation, and what torque avoids leaks?

Place the flat fibre gasket against the pump face, thread the glass in by hand, then snug 1/2 turn past contact with a 1-1/4 inch wrench — over-tightening cracks the glass.

More in Pressure Washer Guns & Spare Parts

Similar items