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The QuadBoss QBT846 Radial Utility Tire [MPN: 609496] is a premium, heavy-duty 8-ply radial front tire traceably engineered to deliver unshakeable tracking authority, ultimate puncture resistance, and a smooth ride for high-performance side-by-sides (SxS) and utility ATVs. Developed specifically to conquer hard-packed trail systems, gravel roads, rocky mountain climbs, and harsh desert environments, the QBT846 features an aggressive, non-directional tread pattern that provides ultra-predictable cornering bit and consistent steering response regardless of rotation. The specialized radial casing maximizes footprint compliance over jagged square-edged rocks and deep roots, substantially lowering rolling vibration while providing a wrap-around shoulder lug layout that guards against sidewall slashing. Built with an optimized rubber compound, this front utility casing delivers maximum clean-out tracking efficiency in light mud while actively fighting accelerated center-tread bald spotting on hard-packed surfaces.
27x9R12 is a factory original equipment front tire size or manufacturer catalog-approved performance placement option on the following utility vehicles, per manufacturer workshop manuals and vehicle parts records:
Factory front wheel rim dimension on these models is 12 x 6.00 inches or 12 x 7.00 inches. Performance configuration note: Moving to an 8-ply radial setup over factory 4-ply or 6-ply bias tires fundamentally updates the vehicle's tracking compliance. The radial belt layup allows the tread face to map flatly against uneven terrain while the flexible sidewall columns absorb heavy trail thuds, giving you absolute cornering steering control and significantly reducing low-speed steering pull over harsh rocks.
Beyond stock factory installations, this tire fits high-performance custom utility configurations specifying a 27x9R12 front tire on a 12 inch wheel hoop where the suspension A-arms, shock coils, steering knuckles, and plastic inner fender walls comfortably clear a 27.0-inch outer diameter and a 9.0-inch section width. The vehicle's loaded front axle payload limitation must remain strictly within the structural limits of its high plying capabilities. If you are adapting this specialized radial utility tire to an older ATV platform or custom farm project, ensure your supporting front wheel width falls safely within the recommended 6.00 to 7.50 inch range.
CRITICAL INSTALLATION AND SAFETY NOTES: This is an 8-ply radial (R) construction tire and should ideally be paired with rear tires of structurally compatible radial design. Never mix radial and bias-ply tire configurations front-to-rear unless explicitly managed by the original vehicle manufacturer; running mismatched carcass constructions fundamentally alters the high-speed handling geometry of the machine, increases chassis lean sway, and can trigger unpredictable handling failures or steering lock on tight hard-packed corners. Do not mount this tire to any machine whose static payload limits exceed the design capacities of an 8-ply utility class rating. Because the tread layout is completely non-directional, it can be mounted to rotate in either direction, simplifying spare swap configurations. Always verify full seating of both tire beads against the rim safety humps before installing valve cores or inflating to operating limits to avoid pinch damage or exploding beads. Always verify and set operating cold inflation pressures strictly to the vehicle manufacturer's tire placard standards (natively ranging between 10 to 18 PSI depending on the vehicle’s specific gross weight and payload state), never to the maximum seating pressure stamped on the tire sidewall. Verify your DOT production date codes and replace any casing exceeding six years from manufacture regardless of remaining lug depth.
| Brand | QuadBoss |
| Tire Line / Series | QBT846 Radial Utility Series |
| Wheel Position | Front |
| Tire Size | 27x9R12 (27x9.00R12 standard footprint) |
| Nominal Tire Height | 27.0 in / 685.8 mm |
| Section Width | 9.0 in / 228.6 mm |
| Rim Diameter | 12 in / 304.8 mm |
| Recommended Rim Width | 7.00 in / 177.8 mm |
| Permissible Rim Widths | 6.00 in to 7.50 in / 152.4 mm to 190.5 mm |
| Construction Type | Radial (R) |
| Carcass Rating | Heavy-Duty 8-Ply Rated (8-PR structural toughness) |
| Tread Depth | Intermediate-to-Hard Multi-Surface Depth Profile |
| Tread Design | Aggressive Non-Directional Multi-Surface Block Pattern |
| Sidewall Style | Blackwall (BW) with Rim Guard Integration |
| Tube Type | Tubeless (TL) |
| Application | Side-by-Side (SxS) Utility, Heavy Duty ATV, Hard-Packed Trails, Rocky Terrain |
| Manufacturer Part Number | 609496 |
Not every product runs through our fitment finder, and we would rather you confirm exact fitment than rely on a partial filter. Match the specifications against your machine or the part you are replacing, or contact us and we will confirm it for you.
Ask a Parts Specialist →| Brand | QuadBoss |
|---|---|
| SKU: | 609496 |
| MPN | 609496 |
| UPC: | 887337346342 |
| Condition: | New |
| air_freight_prohibited | false |
| not_carb_approved | false |
| ltl_freight_required | false |
| prop_65 | Unknown |
| part_type | powersports |
| epa | N/A |
| carb_acknowledgement_required | false |
| regular_stock | t |
| units_per_sku | 1 |
| construction | Radial |
| directional | No |
| load index | 55.00 |
| ply rating | 8 |
| sidewall | BSW |
| tire diameter | 27.00 |
| tire model | QBT846 |
| speed rating | M |
| tire type | All-Terrain |
| wheel diameter | 12.00 |
| wheel position | Front |
| tire width | 9.00 |
| tube type | Tubeless |
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