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
Five brass gas diffusers for Tweco WM250 welding gun

Tweco

Tweco 15201141 Gas Diffuser WM250 No 2 PK5

SKU CH-XPT5-XARJE

Pack of five gas diffusers compatible with Tweco WM250 and Classic No. 2 series MIG guns

  • Product typeWelding Parts & Supplies
  • Compatible with Tweco WM250 series welding guns
  • Fits Classic No. 2, No. 3 and No. 4 models
  • Works with WeldSkill WM250 and WM400 equipment
  • Gas diffuser number WS52FN ensures correct gas flow
  • Pack of five diffusers for multiple replacements

Tweco Gas Diffuser WM250 Pack of Five

The Tweco 15201141 gas diffuser fits WM250 MIG guns and Classic No. 2, No. 3 and No. 4 series torches. It is sold as a pack of five replacements for welding shops and maintenance teams that run these gun models.

WS52FN Diffuser Number Ensures Correct Fit

The WS52FN part number matches the original equipment specification so gas flow and tip seating stay consistent. Buyers who need a different diffuser number or a gun series not listed will not be able to use this pack.

Verify Gun Model and Diffuser Number Before Ordering

Check that your MIG gun is a WM250, WM400 or Classic No. 2, No. 3 or No. 4 and that the current diffuser is stamped WS52FN. If the gun uses another series or a different diffuser code this pack will not fit.

How it compares

Measured against everything we stock in Welding Equipment & Positioners, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 82% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameTWECO
Product typeWelding Parts & Supplies

Questions about this item

When should I replace the WS52FN gas diffuser on my Tweco WM250 gun?

Replace the WS52FN diffuser when gas coverage becomes inconsistent or the tip seats poorly, typically after heavy daily use or if spatter blocks the gas ports.

What fails first on the WS52FN diffuser during long welding runs?

The ceramic insulator cracks from thermal cycling before the brass body wears, cutting shielding gas flow and causing porosity.

How hot does the WS52FN diffuser get during all-day welding at 250 amps?

The diffuser runs hot enough to burn bare skin; let it cool before removal and expect shorter life if run continuously near the gun's 250-amp rating.

More in Welding Equipment & Positioners

Similar items