How do I know a part fits my truck?

Every listing shows the truck make, model years, side (left/right) and OEM cross-reference numbers. Match any of your OEM numbers to the listing, or send us your number and we will confirm fitment.

Do you ship the same day?

Orders placed before 12PM Central on business days ship the same day from our US warehouse. Transit is typically 2–5 business days depending on your state.

What is your return policy?

30-day returns on unused parts in original packaging. Wrong part shipped by us? We cover the return label and ship the correct one first.

Do you offer fleet or shop pricing?

Yes. Business accounts get tiered pricing, saved reorders and a dedicated line. Open a business account to see your pricing and order online.

Are these OEM or aftermarket parts?

We sell quality aftermarket parts cross-referenced to OEM numbers, plus select OEM-grade lines. Brand and grade are shown on every listing.

Can I order by part number?

Yes — type any part number or OEM cross reference into the search bar. If it is not listed, send it to us and we will source it.

Drain Valve, External Seat 1/4" NPT (240-B)

Air-reservoir drain valve for daily moisture purging. Ships from our Illinois warehouse.

Replaces 177.4021

Brand
- Automann
Quality Tier
- Standard
OEM Reference
- Fairview 240-B
Condition
- New
Warranty
- 1-Year FleetPro Warranty

Wholesale pricing for approved accounts

Open a FleetPro business account to see fleet pricing and order online. Repair shops, trucking companies & dealers welcome.

Request a business account

Terms and Conditions
30-day returns on unused parts
Same-day shipping on orders before 12PM CT

Internal Reference: 177.40204

Same-day shipping before 12PM CT from our Illinois warehouse
Part requests and quotes answered within one business hour
30-day returns
1-Year FleetPro Warranty
Wholesale and fleet pricing for approved business accounts
We speak English, Russian, Ukrainian, Romanian, Bulgarian, French and Polish

Drain Valve, Specifications & Fitment

Air-reservoir drain valve for daily moisture purging.

Specifications

Replaces 177.4021
Brand: Automann
Grade: Fleet Standard

Where it's used

Moisture drainage on air brake reservoirs and tanks. Replaces Fairview 240-B, Fairview 240B, Sloan SDC604-4, Sloan SDC6044, Tectran 108-4.

Product Details

Brand	Automann
Quality Tier	Standard
OEM Reference	Fairview 240-B
Condition	New
Warranty	1-Year FleetPro Warranty