PartsByCodespare parts by code

Pressure Gauge Extension

Part number (MPN)
RBS138

OEM Replacement Part & Compatibility Table

Brand
Guide price (£)
Not available: check the current price with the seller
Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

  • Riello RDB 483T50
  • Riello RDB 484T50
  • Riello RDB 487T50
  • RDB1 50-70SH BURNER OIL
  • Riello Rdb1 26 501T1K 3513008
  • RDB2.2 FIREBIRD C20 70K BURNER
  • RDB2.2 FIREBIRD C26 90K BURNER
  • RDB2.2 FIREBRD C35 120K BURNER
  • Riello Rdb2 38 502T3K 3513603
  • Riello Rdb3 Cf 489T50 3748950
  • Riello Rdb4 Cf 488T50 3748850

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does RBS138 fit?

The sources we checked list RBS138 (Pressure Gauge Extension, Riello) for: Riello RDB 483T50, Riello RDB 484T50, Riello RDB 487T50, RDB1 50-70SH BURNER OIL, Riello Rdb1 26 501T1K 3513008, RDB2.2 FIREBIRD C20 70K BURNER, RDB2.2 FIREBIRD C26 90K BURNER, RDB2.2 FIREBRD C35 120K BURNER, Riello Rdb2 38 502T3K 3513603, Riello Rdb3 Cf 489T50 3748950, Riello Rdb4 Cf 488T50 3748850. Always check the model and serial number on the data plate before ordering.

Does RBS138 have equivalent or superseded part numbers?

The sources we checked list no equivalents for RBS138. Ask a Riello stockist to confirm.

What should I check before fitting RBS138?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Related parts

View on eBay

Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.