Belt Tensioner 3976832 3911621 | Fast Dispatch for Cummins 4B3.9 6B5.9
Belt Tensioner 3976832 3911621, replacement for Cummins 4B3.9 / 6B5.9 and Hyundai...
3 Groove Pump Drive Belt 6660994 (cross-reference) for Bobcat 753, 763, 773, 7753 skid steer loaders — 3VX profile, EPDM rubber with aramid fiber reinforcement.
Every order backed by a 12-month manufacturing defect warranty.
In Stock Now — 6660994 replacement belt for Bobcat skid steers sits on our Guangzhou shelf and dispatches within days, not weeks, so your machine is not waiting on a back-ordered OEM shipment.
| Parameter | Value |
|---|---|
| Part Number | 6660994 |
| Product Type | Belt |
| Cross-Reference | 6660994 (reference only) |
| Machine Fitment | Bobcat 753, 763, 773, 7753 Skid Steer Loaders |
| Part Name | 3 Groove Pump Drive Belt |
| Profile Type | 3VX |
| Dimensions | 3×10×1550La (3 grooves × 10 mm pitch × 1550 mm effective length) |
| Material | EPDM Rubber + Aramid Fiber Reinforcement |
| Condition | New Aftermarket |
| Warranty | 12-month warranty against manufacturing defects |
| MOQ | 1 piece |
| Standards | ISO 9001, SAE J1459, ISO 4184 |
| Failure Symptom | Replacement Urgency |
|---|---|
| Squealing noise from pump drive area under load | Immediate — belt slip accelerates pulley wear |
| Visible cracking or glazing on belt surface | High — failure may occur within operating hours |
| Pump not engaging or erratic hydraulic response | Critical — machine non-operational without drive |
| Belt snapped during operation on site | Emergency — skid steer completely down |
The right belt, identified and dispatched before your crew finishes diagnosing the breakdown.
A skid steer sitting idle on a demolition site or snow removal route costs money every hour. When the OEM belt carries a multi-week lead time, waiting is not an option. We stock the 3 groove pump drive belt 6660994 replacement in our Guangzhou warehouse so it ships while the machine is still torn apart in the bay [NEED_CITE: aftermarket parts availability impact on equipment downtime in construction fleets]. I have watched contractors lose entire work windows because a single drive belt was on back-order while everything else was ready to go. The goal here is simple: confirm fitment fast, ship the same day, and keep the job on schedule.
You do not always have a clean part number to work with. Nameplates get painted over, belts wear smooth, and the only thing left is the machine model. Send a photograph of the old belt, the data plate, or simply the model — Bobcat 753, 763, 773, or 7753 — and our team confirms the 3 groove pump drive belt 6660994 replacement fitment within hours, not days.
Dispatch from Guangzhou happens quickly once fitment is locked in. Express courier services such as DHL, FedEx, or UPS deliver to most North American and European destinations within a defined window, quoted at the time of order. Air freight handles heavier consolidated shipments. We do not leave arrival timing to guesswork — the estimated delivery date is part of the quote, so you can plan the repair bay schedule around it [NEED_CITE: international freight transit time benchmarks for construction equipment parts]. One-piece minimum order means no waiting to fill a container before your belt ships.
The 3VX profile is a narrow-wedge belt design that transmits higher power through a smaller pulley footprint compared to classical V-belts. Three grooves share the load across the pump drive, reducing individual belt stress and heat buildup during sustained high-RPM operation. The 1550 mm effective length must match the tensioner travel range on your Bobcat skid steer — a belt even one size off will either ride too loose and slip, or over-tension the pump bearings. EPDM rubber handles the under-hood temperature swings from cold-start mornings to full-load afternoons, while aramid fiber reinforcement limits stretch so tension stays stable across the service interval [NEED_CITE: EPDM versus chloroprene belt performance in mobile equipment drive applications].
Ordering the wrong belt profile or length means the skid steer stays down while you wait for a replacement. A 2-groove belt on a 3-groove pulley concentrates load unevenly, causing premature failure and potential damage to the pump shaft seal. A belt that is too long cannot be tensioned properly, leading to slip, heat, and glazing within the first shift. Each wrong order adds another cycle of teardown, waiting, and reassembly — all while the machine earns nothing on site.
Our Guangzhou warehouse holds stock of common Bobcat skid steer service parts including this pump drive belt, so the 3 groove pump drive belt 6660994 replacement ships without waiting for a production run. One-piece minimum order removes the barrier for a single emergency repair. Part identification works from a part number, machine model, or a photograph of the worn component — whatever you have on hand. Every belt carries a 12-month warranty against manufacturing defects. Cross-reference verification covers superseded and alternate numbers so fitment is confirmed before dispatch, not after arrival. Our technical team checks compatibility and answers questions during the ordering process, not after the part fails on site.
Provide the part number you have, your Bobcat machine model, or a photograph of the old belt or nameplate. We will confirm whether this 3 groove pump drive belt 6660994 replacement fits your specific skid steer, quote the arrival date for your location, and dispatch from stock.
Q: Is this 6660994 belt in stock and when can it ship? A: Yes, this belt is stocked in our Guangzhou warehouse and typically dispatches within days of order confirmation. We quote the estimated arrival date based on your chosen freight method — express courier, air, or sea — at the time of inquiry so you know exactly when to expect it on site.
Q: What is the minimum quantity I can order? A: One piece. We understand that a single skid steer breakdown requires a single replacement belt, not a bulk commitment. There is no minimum order barrier for emergency repairs, and one belt ships with the same priority and documentation as a larger order.
Q: How long does delivery take to North America or Europe? A: Express courier services such as DHL or FedEx typically deliver within a defined window from our Guangzhou warehouse. The exact transit time depends on your specific location and is quoted upfront with your order, so you can plan the repair schedule accordingly.
Q: My nameplate is worn — how do I confirm this is the right belt? A: Send us a photograph of the old belt, the pulley setup, or simply tell us your Bobcat machine model such as 753, 763, 773, or 7753. Our team cross-references the fitment and confirms compatibility before you commit to the order.
Q: What happens if the belt arrives and does not fit? A: Every belt ships under a 12-month warranty against manufacturing defects. If a fitment issue arises despite our pre-shipment verification, contact us immediately with photographs and we will resolve it. Our cross-reference check before dispatch is designed to prevent this situation.
Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.
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