Main Pump Drive Belt 6667322 | Direct Fit for Bobcat S175 S185 S205 T190

Verified Cross-Reference — 6667322 drive belt mapped to specific Bobcat loader serial ranges with groove and profile validation.

Technical Specifications

Application Suitability

Why the Same Part Number Ships Across Multiple Bobcat Generations

A single base number does not guarantee identical geometry across every serial break.

When a repair manual lists 6667322 for both an early S175 and a later S205, the assumption is that the belt is interchangeable. In practice, Bobcat loader generations often share a base drive belt designation while the pulley width, groove depth, or overall circumference shifts between serial prefixes [NEED_CITE: Bobcat service manual revision tracking for drive belt supersessions]. I have seen a Main Pump Drive Belt for Bobcat S175 S185 T190 ordered by number alone arrive on site only to ride too high in the pulley grooves of a machine built six months later, slipping under the first heavy bucket load. The cost is never just the belt — it is the second machine-down period while the correct variant ships.

Confirming Fitment by Machine Serial Range

The reliable path starts with the machine serial number, not the old belt stamp. Belt stamps wear off, get painted over, or belong to a belt that was itself a field substitution. Our technical team cross-references 6667322 against the specific Bobcat serial prefix — S/N range determines whether the 3-groove cogged flat belt matches the pump pulley installed at the factory. This Main Pump Drive Belt for Bobcat S175 S185 T190 covers a wide range, but serial-level verification eliminates the variant mismatch that causes on-site failures.

Pulley and Groove Interface Verification

Before the belt goes on, the pulley itself needs inspection. A worn pulley with rounded groove walls will not grip a new 3-groove cogged belt correctly, leading to early slippage regardless of belt quality. Check the pulley for groove wear, axial runout, and any evidence of previous misalignment [NEED_CITE: belt drive pulley wear inspection criteria for skid steer loaders]. The fiber-loaded backing on this belt provides additional cord support, but it cannot compensate for a pulley that has lost its original profile. On T-series compact track loaders, also confirm that the drive pump mounting bracket has not shifted, which changes belt tracking angle.

Reading the Specification for Field Decisions

The cogged flat profile with 3 grooves is the defining geometry. "Cogged" means the inner surface has lateral notches that allow the belt to bend around smaller-diameter pulleys without internal heat buildup — a critical factor in the confined engine bay of a skid steer loader where the main pump pulley is small relative to the power transmitted. The fiber-loaded backing adds dimensional stability so the belt resists stretching under sustained hydraulic load. Additional cord support within the belt body handles the peak tension spikes that occur when the loader bucket curls into a dense pile. These characteristics together mean the belt runs quieter and maintains tension longer between adjustment intervals.

The Cost of Installing the Wrong Variant

Forcing a slightly mismatched belt onto a pulley produces two failure modes. The first is immediate: the belt tracks off-center and jumps a groove within the first operating hour, leaving the machine without hydraulic drive. The second is delayed and more expensive: a belt that is one groove-width wrong or slightly over-length runs with insufficient wrap contact, generating heat that degrades the rubber compound from the inside outward [NEED_CITE: belt drive failure analysis for mobile hydraulic equipment]. The machine keeps working for weeks, then fails during a high-load cycle. The return freight on a misfit part and the second emergency order cost more than a serial-number check would have taken.

Why Source This Belt Through XUNPO

Our own production lines and qualified sourced supply operate under one account with one warranty, so whether this belt ships from our Guangzhou facility or a partner plant, the QC terms are identical. Eight product categories mean a full skid steer service order — belts, filters, seal kits, hydraulic hoses — consolidates into one consignment. Minimum order is one piece, so a single emergency replacement ships without an MOQ barrier. Part identification works from the number, the machine model, a photograph of the nameplate, or an image of the old belt. Cross-reference verification covers superseded and alternate numbers across Bobcat loader generations. Sample supply is available so you can confirm physical fitment on your machine before committing to a fleet-level order.

Documentation & Verification

• Commercial invoice and packing list matching belt part number and quantity
• Fitment and cross-reference sheet confirming serial range compatibility (reference only)
• Dimensional and visual quality inspection record per batch
• Warranty terms covering manufacturing defects for 3 to 12 months
• Packing photographs showing belt condition before crate closure
• HS code and customs documentation support for international shipment

Fitment Check Before Installation

• Measure old belt outer circumference and compare against the new 3-groove belt before fitting
• Inspect pump pulley groove walls for rounding or uneven wear that causes slippage
• Verify belt tracks centered on all pulleys after hand-rotation through one full cycle
• Confirm tensioner arm moves freely and applies correct deflection to the new belt
• Run machine at idle for several minutes and recheck belt seating and alignment
• If groove count or profile does not match, stop installation and contact technical support

Request a Fitment-Verified Quote

Send your Bobcat machine model, serial number, and a photo of the existing belt or nameplate. Our technical team will cross-reference 6667322 against your specific serial range, confirm groove and profile compatibility, and return a fitment-verified quotation. If your fleet spans multiple Bobcat generations, include all serial numbers so we map each machine to the correct variant in one response.

Frequently Asked Questions

Q: How do I confirm this belt fits my specific Bobcat model and serial range? A: Provide the full machine model and serial number from the identification plate. Our team cross-references 6667322 against Bobcat serial-range records to confirm the 3-groove cogged profile matches your machine's pump pulley configuration. This verification catches variant differences that a part number alone cannot resolve.

Q: My old belt has a different number — is 6667322 still the correct replacement? A: Possibly. Bobcat has superseded and consolidated belt part numbers across loader generations. Send us the number on your old belt along with the machine serial number. We run a cross-reference check to determine whether 6667322 is the valid current replacement or whether a different variant applies to your specific build.

Q: Why do some Bobcat models share the same base number but require different belt variants? A: Engineering revisions between production years can change pulley diameter, groove spacing, or belt length while the base system designation remains unchanged. Serial-range verification ensures the physical belt matches the pulley set installed on your specific machine rather than assuming interchangeability from a shared reference number.

Q: Can I get a sample to test fitment before ordering in quantity? A: Yes. We supply sample units so you can physically install the belt on one machine and confirm groove engagement, tracking, and tensioner compatibility before placing a bulk order for your fleet or distribution stock.

Q: I only have the machine model, no readable part number — can you identify the right belt? A: Send the machine model, serial number, and a photograph of the pump pulley or the old belt if available. Our identification team uses the serial prefix and visual references to determine the correct 3-groove cogged belt variant, even when the original part number is completely unreadable.