The B&B Molders Nautilus P1 puts fresh-water filling, pressurized city-water use, tank-fed water supply, winterizing and tank flushing in one RV service panel. The white P1 assembly is 94141; the manufacturer's black P1 reference is 94143. Use the model-specific factory callouts below to identify a valve, handle, water connection or exterior faucet before choosing a replacement.

Original Nautilus P1 numbered parts list

The manufacturer drawing numbers 1–14 refer to positions on the panel's front-and-rear illustration. The table preserves the P1-specific numbering and white/black part choices.

Factory drawing # Component B&B aftermarket part number
1 Rocker switch, red/white 94380 (white), 94381 (black)
2 Green handle with screws 94148
3 Red handle with screws 94368
4 Polar-white handle with screws 94369
5 Blue handle with screws 94367
6 Black handle with screws 94235
7 Quick-disconnect faucet 94140 white; 94139 black
8 City-water connection 94210 white; 94211 black
9 Factory-marked non-replaceable component No replacement part listed
10 City-water retainer clip 94385
11 Green-handle diverter 94135
12 Red-handle diverter 94135
13 Blue/white-handle dual diverter 94137
14 Black-handle diverter 94136

How the main replacement valves differ

94135 is the three-way valve serving both the green and red handle positions (drawing numbers 11 and 12). 94137 is the dual three-way assembly operated by the blue and white handles at number 13. 94136 is the two-way ball valve operated by the black handle at number 14. These are separate components with different positions.

Photos of P1-related parts available at UsedRVParts

94141 — Nautilus P1 white panel

B&B Molders 94141 Nautilus P1 white water-management panel

White Nautilus P1 panel assembly; match the factory 94141 identification.

View 94141 product

94135 — P1 three-way diverter

B&B Molders 94135 three-way water diverter for Nautilus P1

The three-way diverter listed at drawing positions 11 and 12.

View 94135 product

94137 — P1 dual three-way diverter

B&B Molders 94137 dual three-way water diverter replacement for Nautilus P1

Dual diverter at drawing position 13, operated by blue and white handles.

View 94137 product

94136 — Two-way water diverter

B&B Molders 94136 two-way ball diverter for Nautilus P1 or P3

Two-way diverter listed at drawing position 14 for the black handle.

View 94136 product

94140 — White quick-disconnect faucet

B&B Molders 94140 white exterior faucet for Nautilus water-management panels

White quick-disconnect exterior faucet for position 7.

View 94140 product

94139 — Black quick-disconnect faucet

B&B Molders 94139 black exterior faucet for Nautilus P1 panel

Black quick-disconnect exterior faucet option for position 7.

View 94139 product

94210 — White city-water connection

B&B Molders 94210 white city-water check-valve connection for Nautilus panel

White city-water check-valve connection for drawing position 8.

View 94210 product

Check the original panel and drawing

Open the B&B Molders manufacturer parts catalog (PDF). The Nautilus water-management drawings are in the plumbing section; use the numbered original front-and-rear views to locate each component.

Identify your panel before ordering. The P1 and P3 systems have different factory diagrams, and a shared valve number does not mean all handles and diverters interchange. Compare the model label, valve body, handle position and surrounding connections. Diagram positions identify service components; they do not indicate what is supplied with a complete panel.

For a different panel generation, see the Nautilus P3 parts reference. P3 uses different callout numbers and additional diverter arrangements.

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