Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

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QuadBoss Polaris Sportsman 550 Thermostat

QuadBoss · Clearance

QuadBoss Polaris Sportsman 550 Thermostat

MPN 401394 · Store SKU qbs401394

Price on request
IN STOCK6 ready to ship

Supplier stock checked 11/7/2026, 9:17:37 AM UTC. Adding a part does not reserve it.

FINAL SALE — NO RETURNS OR REFUNDS

Clearance and scratch-and-dent parts are final sale. No returns or refunds.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

QuadBoss® Thermostats are a direct O.E. replacement that meets or exceeds factory specs. Installs and operates exactly like the factory unit. QuadBoss 401394 Engine Cooling Thermostat, OEM# 3090135

Manufacturer fitment & guides

Check 401394 against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

  • Clearance item. All sales are final under the supplier clearance policy.
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