Belt Tensioner Pulley Assembly 6735884 – Model-Matched for Bobcat Skid Steer Loader

Verified Cross-Reference Fitment — We map superseded number 6711698 to current 6735884 and confirm which Bobcat skid steer serial ranges accept each variant before you order.

Technical Specifications

Application Suitability

Superseded Numbers and Variant Differences That Trap Bobcat Owners

The same base number can ship in multiple variants — confirming the correct belt tensioner pulley assembly requires serial range verification, not just a catalogue lookup.

In our technical support work from Guangzhou, we regularly encounter situations where a buyer provides a part number from an older service manual, only to find the physical component differs in groove profile, bearing bore, or mounting hole spacing. The transition from 6711698 to 6735884 across Bobcat skid steer generations is one such case. A mismatched pulley causes belt misalignment within the first few operating hours, leading to premature belt wear and a second machine stoppage. [NEED_CITE: belt drive system alignment tolerances for skid steer loaders]

Confirming the Correct Belt Tensioner Pulley for Your Serial Range

The belt tensioner pulley assembly identified as 6735884 fits Bobcat 653, 751, 753, 763, 773, and 7753 skid steer loaders. However, compatibility within each model family depends on the machine serial number and the production date of the specific unit. Earlier units may still carry the superseded 6711698 (cross-reference only), while later builds use the current assembly with revised mounting geometry.

Mounting Pattern and Groove Profile Verification

Before committing to a bulk order, we check the mounting hole spacing and pulley groove profile against your existing tensioner assembly. Belt drive systems on Bobcat skid steers operate under continuous vibration and variable load, so even slight dimensional deviation in the tensioner pulley causes the belt to track off-center. [NEED_CITE: belt tracking failure modes in mobile equipment drive systems] We compare the pulley outer diameter, groove width, and bearing bore against reference dimensions for each serial range, ensuring the replacement assembly seats correctly on the tensioner arm.

Reading the Specifications That Matter for Belt Drive Components

The high-strength steel housing on this belt tensioner pulley assembly resists deformation under sustained belt tension loads. On skid steer loaders, the tensioner arm applies lateral and radial forces simultaneously during engine acceleration and hydraulic pump engagement, so housing rigidity directly affects belt alignment over time. The sealed bearing design prevents dust and moisture ingress, which is critical for machines operating in demolition, grading, and agricultural environments where fine particulate contamination is constant. A sealed bearing in this position avoids the premature bearing failure that unsealed variants experience when grease washes out under pressure washing or heavy rain exposure. The pulley assembly ships complete, meaning the pulley, bearing, and housing arrive as one unit — eliminating the risk of mixing mismatched components during field installation.

What a Wrong Variant Costs Beyond the Part Price

Ordering the incorrect tensioner variant means the machine sits idle while the wrong part is returned and the correct one is sourced. In a worst-case scenario, a slightly misaligned pulley installs but causes the drive belt to ride on the groove edge, shredding the belt within days. The operator then faces a second unplanned downtime event, plus the cost of a replacement belt and a second round of labor for belt routing and tension adjustment. [NEED_CITE: unplanned downtime cost factors for compact construction equipment] Fleet operators managing mixed-age Bobcat machines are especially exposed, because a single incorrect part number assumption can affect multiple units in the fleet.

Why Sourcing This Tensioner Through XUNPO Works for Mixed Fleets

Our own production lines and qualified sourced supply both carry the same warranty terms, so you get consistent quality control whether the batch comes from our Guangzhou facility or a certified partner. We hold stock across eight product categories under one account, meaning if your repair list also calls for belt kits, seal sets, or hydraulic filters, everything ships in one consignment. Our minimum order is one piece, which matters when you need a single tensioner pulley to get a machine running. We verify fitment from a part number, machine model, photograph, or nameplate image — whichever identifier you have available. Our cross-reference verification covers the superseded 6711698 to 6735884 mapping and alternate numbers that other sellers may have copied incorrectly between listings. A sample unit is available for trial fitment before you commit to a fleet-level order across your Bobcat machines.

Documentation & Verification

• Commercial invoice and packing list referencing 6735884 and machine model
• Part compatibility sheet mapping 6711698 superseded number (reference only)
• Dimensional inspection record covering pulley groove and mounting pattern
• Warranty terms covering manufacturing defects for 3–12 months
• Packing photographs showing assembly condition before crate sealing
• HS code and customs documentation for international belt tensioner shipments

Fitment Check Before Installation

• Compare pulley groove width and outer diameter against the removed assembly before mounting
• Verify bearing bore seats flush on the tensioner arm shaft without lateral play
• Check mounting bolt hole spacing against the existing bracket pattern on your Bobcat model
• Rotate the pulley by hand to confirm sealed bearing spins freely without notchiness
• Run the engine at idle and observe belt tracking on the tensioner pulley for one full minute

Requesting a Fitment Verification

Provide your Bobcat skid steer model and serial number, or send a photograph of the existing tensioner assembly and its nameplate. We will cross-reference against 6735884 and 6711698 to confirm which variant your machine accepts, then share a compatibility confirmation before you place an order.

Frequently Asked Questions

Q: How do I confirm this tensioner pulley fits my specific Bobcat skid steer model and serial range? A: Send us your machine model and serial number. We cross-check the production date against our fitment database for Bobcat 653, 751, 753, 763, 773, and 7753 loaders. Where the serial range overlaps a superseded number transition, we verify whether your unit accepts 6735884 or requires the earlier 6711698 variant (cross-reference only).

Q: My old part shows 6711698 — is 6735884 the correct replacement and does it fit the same mounting? A: In most cases, 6735884 replaces the superseded 6711698 directly. However, mounting patterns changed across some Bobcat skid steer production runs. We verify the bolt hole spacing and pulley groove profile for your specific serial range to ensure the replacement tensioner pulley assembly seats correctly on your existing arm.

Q: Why do some Bobcat models use a different tensioner variant even though the base number looks similar? A: Bobcat updated belt routing and tensioner arm geometry across production generations. A variant that fits a 753 from one serial block may not align correctly on a 753 from a later build. We confirm the exact variant by matching your serial number against the applicable engineering revision.

Q: I only have the machine model, not the part number — can you identify the correct pulley for me? A: Yes. Provide the Bobcat model and a photograph of the existing tensioner assembly, including any visible markings on the housing or pulley face. We use the image to identify the groove profile and mounting pattern, then cross-reference against known variants for that machine family.

Q: Can I order a sample to test fitment before placing a larger order? A: We supply a single sample unit with the same quality and warranty terms as bulk orders. Install it on one machine, verify belt alignment and tensioner arm engagement, then proceed with confidence when ordering for the rest of your fleet.