Bendix 800445 MV-3 Dash Valve, Unthreaded Mounting Holes, 1/4" NPT Ports Part Number: 060-800445

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This MV‑3 variant (Bendix 800445) features 1/4"-18 NPT supply, delivery, and exhaust ports along with unthreaded 0.275" mounting holes. It uses a 5‑3/4" x 1‑1/2" center‑to‑center mounting footprint and is designed for through‑bolt installation rather than threaded fasteners. This model is supplied as a complete MV‑3 dash valve assembly.

Special Notes

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Product Description

Manufacturer: Bendix

Part Number: 800445

Condition: New

Supply 11 Port: 1/4"-18 NPT

Supply 12 Port: 1/4"-18 NPT

Delivery 21 Port: 1/4"-18 NPT

Delivery 22 Port: 1/4"-18 NPT

Exhaust Port: 1/4"-18 NPT

Auxiliary Port: None

Mounting Holes: Ø0.275" unthreaded (4x)

Mounting Hole Spacing: 5‑3/4" x 1‑1/2" center‑to‑center

Tractor Trip Pressure: 30 ± 10 PSI

Trailer Trip Pressure: 35 ± 10 PSI

Trailer Override Pressure: 25 ± 5 PSI

Button(s) Included: Yes

The Bendix MV-3 Dash Control Module is a dual-button, push-pull valve that controls the tractor and trailer parking brake circuits from a single dash-mounted assembly. It consolidates tractor protection, trailer supply, and system park functions into one compact unit, replacing any existing two- or three-valve push-pull system with reduced plumbing complexity.

The MV-3 uses an integrated dual-circuit supply check valve to manage both primary and secondary reservoir connections, providing automatic trailer brake application if supply pressure drops to approximately 20-45 PSI, with a non-override trip piston activating at 20 PSI. The non-metallic, non-corrosive valve body has all air connections at the rear, with an optional auxiliary port available on select configurations.

Cross References: 800445, 060-800445, 5004463, 5004464, 5020492, 745-800445, BW800445, S-23873, S23873, 800445BXW, 85106364
A cross reference listing means that this item should be a suitable replacement for the part numbers listed. You should check the description to be sure it will work in your application.