In Stock Tensioner Belt 3937553 Compatible with Cummins B3.9L 5.9L
Tensioner Belt 3937553 cross-reference for Cummins B3.9L / 5.9L — new aftermarket...
Belt Tensioner Kit 6662997 — replacement for Bobcat skid steer and track loaders, includes idler pulley, arm, spring, bearing, and all mounting hardware.
Compatible with Bobcat 653, 753, 763, 863, S130–S300 skid steers and T140–T300 track loaders.
Ready Stock — Belt Tensioner Kit 6662997 verified and staged in Guangzhou warehouse for immediate single-piece dispatch.
| Parameter | Value |
|---|---|
| Part Number | 6662997 |
| Product Type | Belt Tensioner |
| Cross-Reference | 6662997, 6702474, 6725212 (reference only) |
| Machine Fitment | Bobcat Skid Steer Loaders 653, 751, 753, 763, 773, 7753, 853, 863, 864, 873, 883, 963, S130, S150, S160, S175, S185, S205, S220, S250, S300; Bobcat Track Loaders T140, T180, T190, T200, T250, T300; Bobcat Wheel Loaders A220, A300 |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| Kit Contents | Screw 38C820, Bearing 6655781, O-RING 6704820, Spring 6700115, Screw 73G656, Arm 6725212, Washer 6704444, Grease Ring 6660995, Fan Drive Idler Pulley 6662997, Bushing 6704443, Retainer 6702474, Nut 61D6 |
| Manufacturing Standard | ISO-certified |
| Failure Symptom | Replacement Urgency |
|---|---|
| Squealing noise during engine startup or under load | Immediate — indicates belt slippage and potential overheating |
| Visible wear or cracking on tensioner arm or pulley surface | High — schedule replacement within next service window |
| Engine overheating linked to fan drive inefficiency | Critical — machine should not operate until resolved |
| Belt throwing or misalignment during operation | Immediate — risk of secondary damage to adjacent components |
| Excessive vibration from fan drive assembly | High — inspect bearing and bushing within kit |
A verified Belt Tensioner Kit 6662997 replacement in stock leaves our Guangzhou facility within hours of order confirmation.
When a Bobcat skid steer or track loader goes down on a jobsite, every hour of silence costs real money. I have seen contractors wait days just to confirm whether a worn part number is still valid, only to discover the superseded number requires a different mounting pattern. [NEED_CITE: equipment downtime cost impact on construction project schedules] The Belt Tensioner Kit 6662997 replacement in stock sits on the shelf right now, not on a backorder list six weeks out. You send the machine model or a photo of the nameplate, and compatibility gets confirmed before you finish your coffee.
The Belt Tensioner Kit 6662997 replacement in stock moves through a straightforward sequence. You provide the part number, the machine model, or a photograph of the worn component. Our team cross-checks the identifier against the superseded numbers 6702474 and 6725212 to confirm the variant matches your specific Bobcat loader serial range. Once confirmed, the kit is pulled from stock, inspected, and staged for dispatch. Single-piece orders are standard here — no minimum order quantity blocking an emergency repair.
Express courier delivers the Belt Tensioner Kit 6662997 replacement in stock to most international destinations within a typical multi-day window. Air freight suits larger consolidated shipments where a few extra days in transit are acceptable. Sea freight remains available for planned replenishment, though it rarely applies to a single emergency kit. [NEED_CITE: international freight transit time comparison for construction spare parts] Arrival timing is quoted at the inquiry stage, not buried in fine print after payment. Guangzhou warehouse proximity to major shipping hubs shortens the domestic leg considerably.
This kit is not just a pulley — it is a complete fan drive tensioner assembly. The included bearing 6655781 and bushing 6704443 must seat correctly within the arm 6725212 to maintain proper belt deflection under thermal expansion. The spring 6700115 provides the tensioning force, and its rate must match the original specification to prevent both slippage and premature bearing wear. The O-ring 6704820 seals the grease cavity, keeping contamination out of the bearing race during operation in dusty construction environments. Missing any one of these twelve components means an incomplete repair and a second shutdown.
Ordering a tensioner kit without verifying the variant leads to a familiar and expensive sequence. The package arrives, the technician opens the box, and the arm does not align with the mounting points. The machine stays down while the correct kit is sourced and shipped. [NEED_CITE: aftermarket parts misidentification rates in heavy equipment repair] In some cases, a勉强-fitting pulley gets installed anyway, creating misalignment that destroys the new belt within weeks. The second teardown costs more in labor than the part itself. Confirming the Belt Tensioner Kit 6662997 replacement in stock against your machine serial number before shipping eliminates this entire failure chain.
Our Guangzhou warehouse holds the Belt Tensioner Kit 6662997 replacement in stock as a common fast-failure item, not a special-order curiosity. Single-piece orders ship without negotiation — one kit for one downed machine is a normal transaction here. Part identification works from a number, a machine model, or a photograph when the nameplate is painted over or worn blank. Cross-reference verification covers the superseded numbers 6702474 and 6725212 so older machines are not left unsupported. Both self-produced and sourced supply lines carry identical QC and warranty terms under one account. The technical team confirms compatibility and variant before the kit leaves the shelf.
Send the part number from the old tensioner, the Bobcat machine model and serial number, or a clear photograph of the nameplate and worn component. If the nameplate is unreadable, a photo of the mounting pattern and pulley diameter is enough to verify the correct variant. [NEED_CITE: heavy equipment nameplate identification best practices] We confirm stock status, freight options, and arrival timing in the same response — no back-and-forth across time zones delaying a machine that is already down.
Q: Is this kit in stock and how fast can it ship? A: The Belt Tensioner Kit 6662997 is held in our Guangzhou warehouse as a stocked fast-failure item. Orders typically dispatch within 2–5 working days after confirmation. Express courier options are available for urgent single-piece shipments, with arrival timing quoted at the inquiry stage based on your destination.
Q: Can I order just one kit for an emergency repair? A: Yes. Single-piece orders are standard practice here. There is no minimum order quantity requirement blocking an emergency purchase. One kit for one downed Bobcat skid steer or track loader ships the same way a bulk order would, with full documentation and warranty coverage included.
Q: My nameplate is unreadable — can I confirm fitment from a photo? A: Send a clear photograph of the worn tensioner, the mounting area, and any visible casting numbers. Our team cross-checks these against the machine model serial ranges and superseded part numbers to confirm the correct variant. This identification step happens before any order is placed.
Q: What are the delivery timeframes for express vs. air vs. sea freight? A: Express courier typically reaches international destinations within a multi-day window. Air freight adds a few days but suits consolidated shipments. Sea freight involves typical multi-week transit and is rarely practical for a single emergency kit. Specific arrival estimates are provided at the inquiry stage for your exact location.
Q: What happens if the kit arrives and doesn't fit? A: Compatibility is verified against your machine model, serial number, or component photograph before shipping. If a fitment issue arises despite this verification, the warranty covers manufacturing defects for 3–12 months with a photo-based claim process. Contact the technical team immediately with installation photos for resolution.
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.
Fill in your details and we'll respond within 24 hours with a competitive quote.
Explore more high-quality excavator and heavy equipment parts from XUNPO.
Tensioner Belt 3937553 cross-reference for Cummins B3.9L / 5.9L — new aftermarket...
Wheel Drive Belt 265-458, neoprene rubber with polyester cord — replacement for...
Arrival timing confirmed at quote, so your machine is not waiting on...
Fan Belt 84331239 for New Holland Loaders — replacement for L221, L228,...