Drive Pump Belt 6736775 | Cross-Reference for Bobcat 753 S130 S150 S185

Variant-by-variant verification — Each Drive Pump Belt 6736775 is checked against machine serial range and pulley groove count before dispatch, preventing the wrong variant from reaching the job site.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Multiple Configurations

The base number 6736775 can cover different groove counts or cord constructions across Bobcat loader generations, making machine serial verification essential.

Over the years of supporting aftermarket fitment across the Pearl River Delta region, the most costly mistakes have come from parts that appear identical on paper but differ physically. A Bobcat 753 once came in with a belt that matched the outside diameter perfectly yet sat on the wrong pulley track because the engine serial had changed mid-production. The machine sat idle for three days while a replacement was sourced. That kind of scenario repeats when cross-reference tables are copied between sellers without verifying superseded numbers or variant splits. [NEED_CITE: belt drive cross-reference accuracy in aftermarket loader parts]

When ordering a Drive Pump Belt 6736775 for Bobcat S130, S150, S175, or S185 loaders, the part number alone is the starting point, not the finish line. Production changes across model years can shift the groove profile or the cord material, and a belt that looks correct on the shelf may ride off the pulley under load or fail within weeks of installation.

Serial Range Coverage Across Bobcat S-Series and T-Series Loaders

This belt fits a broad range of Bobcat skid steer and compact track loaders, from the 753 through the S-series and T-series to the Toolcat 5600. The compatibility list is verified against machine serial ranges, not just model badges, because Bobcat has historically updated drive pump arrangements within the same model designation. A Drive Pump Belt 6736775 for Bobcat S130 through S205 may cover multiple production runs, each with slight differences in pulley spacing or tensioner geometry. Providing the machine serial number allows precise confirmation before the belt ships.

Groove Count and Pulley Interface Verification

The 3-groove variable cog design must match the pulley system exactly. Even a single-groove difference causes the belt to track incorrectly, leading to edge wear and premature failure. The 30.2 mm width and 1477 mm length define the belt's engagement envelope, but the pulley flange condition and tensioner travel also matter. Before confirming fitment, we check the groove count against the specific machine's pump drive arrangement, the mounting hole pattern on the tensioner bracket, and the belt routing path. [NEED_CITE: belt tracking and pulley alignment standards for compact loaders] A belt that is dimensionally correct but routed through an incompatible tensioner will either slip under load or overstress the backing.

Decoding the Dimensional and Material Specifications

The 1477 mm belt length determines the center distance between the drive and driven pulleys, which is fixed by the engine and pump mounting geometry. If the length is even slightly outside tolerance, the tensioner cannot compensate, and the belt will either run loose or overload the bearing on the pump shaft. The 30.2 mm width spreads the transmitted load across three grooves, reducing per-groove stress and extending service life under the high-torque conditions typical of hydrostatic drive pumps. The variable cog profile allows the belt to flex around smaller pulley diameters without cracking, which matters during cold starts when rubber compounds stiffen. The fiber-loaded backing adds dimensional stability so the belt does not stretch beyond its design envelope after repeated thermal cycles. Together, these specifications define whether the belt survives its first season or fails before the next scheduled service. [NEED_CITE: variable cog belt design and thermal cycling in hydrostatic drive systems]

What Happens When the Wrong Variant Gets Installed

A belt that mounts but does not match the pulley profile will show no immediate problem. The machine runs, the operator goes back to work, and the mismatch only reveals itself through accelerated wear at the groove edges or a sudden snap during peak torque demand. The hidden cost is not just the belt itself but the second teardown, the hydraulic fluid that must be drained and replaced if the pump housing is opened, and the project hours lost while the loader sits waiting for a correct replacement. In fleet operations where multiple Bobcat models share a maintenance schedule, an unverified belt variant can cause the same failure pattern across several machines, multiplying downtime. [NEED_CITE: unplanned loader downtime cost from belt drive mismatches]

Sourcing with Fitment Certainty

Our own production lines and qualified sourced supply operate under one account with the same warranty terms, so whether the belt comes from our facility or a certified partner, the quality standard is consistent. Eight product categories mean a complete repair list — belts, seals, filters, tensioner components — ships as one consignment rather than arriving in separate deliveries. We accept orders from a single piece upward, which matters for a one-machine emergency as much as for a fleet restock. Part identification is available from a part number, a machine model, a photograph, or even a worn nameplate image, and our cross-reference verification covers superseded and alternate numbers. Sample units are available for physical fitment trials before larger commitments, which is the most reliable way to confirm a belt variant when documentation is ambiguous.

Documentation & Verification

• Commercial invoice and packing list referencing belt part number and machine model
• Compatibility and cross-reference sheet marked as reference only for superseded numbers
• Dimensional inspection record covering belt length, width, and groove count
• Warranty terms document specifying coverage period against manufacturing defects
• Packing photographs showing belt condition and labeling before crate closure
• HS code and customs documentation support for international belt shipments

Fitment Check Before Installation

• Compare the replacement belt groove count against the original pulley before removing the old belt
• Measure the belt length against the worn belt to confirm the 1477 mm specification matches
• Inspect pulley flanges and tensioner travel to rule out secondary causes of previous belt failure
• Route the new belt through the exact path shown in the machine service manual
• Run the machine at idle for initial tracking observation before applying load
• Report any misalignment immediately so an alternate variant can be cross-referenced

Request Fitment Verification Before Ordering

Provide the machine model, serial number, or a photograph of the existing belt and nameplate so the correct variant can be confirmed against the compatibility list. If the old part number differs from 6736775, share it for a cross-reference check that accounts for superseded numbers. For fleet orders covering multiple Bobcat models, send the full model list so a consolidated fitment sheet can be prepared.

Frequently Asked Questions

Q: How do I confirm this belt fits my specific Bobcat model and serial range? A: Share your machine model and serial number, and we cross-check against the verified compatibility list. Production changes within the same model can affect groove count and belt routing, so the serial number eliminates guesswork. If the nameplate is unreadable, a photograph of the old belt and pulley arrangement is usually sufficient for identification.

Q: My old belt has a different part number — is 6736775 still the correct replacement? A: It may be. Bobcat has superseded part numbers across production runs, and older numbers often map to 6736775 as the current replacement. Send us the number on your old belt and your machine model, and we run a cross-reference check marked for identification purposes to confirm whether this belt is the correct match.

Q: Why do some listings for the same number show different groove counts or widths? A: The same base number sometimes covers multiple production variants with different pulley configurations. Listings that do not specify groove count or dimensions may be referencing a different variant entirely. We verify the 3-groove configuration and 30.2 mm width against your specific machine serial to ensure the physical match is correct.

Q: I only have the machine model with no readable part number — can you identify the right belt? A: Yes. Provide the machine model and, ideally, a photograph of the pulley area or the worn belt remnants. We use the model and serial range to narrow down the correct belt specification, and we can arrange a sample unit for physical fitment confirmation before you commit to a larger order.

Q: Can I get a sample to check fitment before ordering in bulk? A: Sample units are available for fitment trials. This is especially useful when maintaining a mixed fleet of Bobcat loaders where several variants may be in use. Install the sample, confirm tracking and tension, then proceed with a bulk order once compatibility is verified on your own machines.