6745-21-3210 Gear Case Cover protects the 6D114 engine gear area for B2B excavator parts overhaul, replacement, and wholesale sourcing.
The 6745-21-3210 Gear Case Cover YNF18700 is supplied for compatible PC300-8 applications using the 6D114 engine reference. It is installed around the engine gear housing area, where the corresponding gear-train components are enclosed and protected during engine operation.
A properly matched gear case cover helps maintain the structural enclosure around the engine gear system and provides the required mounting and sealing interface with adjacent engine components. Damage, deformation, corrosion, or worn sealing surfaces can create additional work during engine rebuilding.
For B2B buyers, the 6745-21-3210 PC300-8 gear case cover should be confirmed by part number, 6D114 engine reference, cover shape, mounting-hole arrangement, sealing surface, opening positions, and existing-part photos. Accurate comparison is especially valuable for engine overhaul parts because similar housings may differ in mounting and passage configurations. Correct verification helps reduce wrong inventory, installation rework, returns, and repeat freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF18700 |
| Part Number | 6745-21-3210 |
| Product Name | Gear Case Cover |
| Alternative Name | Gear Housing Cover / Engine Gear Cover / Gear Train Cover |
| Product Type | Engine Gear Housing Component |
| Parts Category | Excavator Engine Parts |
| Machine Reference | PC300-8 |
| Engine Reference | 6D114 |
| Main Function | Encloses and Protects the Engine Gear Area |
| Application | Diesel Engine Gear Housing Assembly |
| Installation | Engine Gear Case / Gear Housing Area |
| Fitment Check | Part Number / Engine Model / Cover Shape / Mounting Holes / Sealing Surface / Existing Part Photo |
| Quality Type | Aftermarket Replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping Method | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application | Description |
|---|---|
| PC300-8 Excavator | Used in compatible 6D114 engine configurations |
| 6D114 Engine | Installed around the corresponding engine gear housing |
| Gear Train Protection | Helps internal gear-area components remain enclosed |
| Engine Overhaul | Suitable for replacement during major engine rebuilding |
| Gear Housing Repair | Used when the existing cover is cracked or damaged |
| Sealing Surface Renewal | Suitable when the original mating surface is deteriorated |
| Engine Repair Workshop | Practical for professional diesel engine servicing |
| B2B Parts Stocking | Suitable for dealers, wholesalers, and engine parts importers |
Q: What is YNF18700?
A: It is a gear case cover with reference number 6745-21-3210.
Q: Which machine is referenced?
A: The supplied machine reference is PC300-8.
Q: Which engine is referenced?
A: The supplied engine reference is 6D114.
Q: Is this a complete gearbox assembly?
A: No. It is a cover component used around the compatible engine gear housing area.
YNF Machinery supplies 6745-21-3210 gear case covers and related PC300-8 6D114 engine parts for excavator repair workshops, diesel engine rebuilders, machinery dealers, wholesalers, and international importers.
The YNF18700 gear housing cover is a fitment-sensitive engine component. Mounting-hole locations, sealing surfaces, openings, and overall housing geometry should therefore be checked carefully before quantity purchasing.
Professional B2B buyers can provide the 6745-21-3210 part number, PC300-8 machine information, 6D114 engine details, required quantity, mounting-side photos, overall dimensions, sealing-face details, and clear images of the removed cover for fitment confirmation.
Engine gears, gaskets, oil seals, bearings, front housing parts, oil pumps, and other 6D114 engine components can also be consolidated into the same inquiry to simplify procurement and reduce fragmented international shipment costs.
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