105x135x18mm Silicone Lip Rear Crankshaft Oil Seal OEM 6130-21-4231 for Komatsu S6D105 Engine
Model / SKU: VKEFOT-105-135-18-SIL
High-quality 105x135x18mm rear crankshaft oil seal with silicone lip, OEM 6130-21-4231, designed for Komatsu S6D105 diesel engine. High temperature resistant, leak-proof, in stock with worldwide shipping. Factory direct aftermarket parts for machinery MRO and wholesale buyers.
Tags: 105x135x18 oil seal, 6130-21-4231 crankshaft seal, silicone rear crankshaft oil seal, high temp engine oil seal, Komatsu S6D105 engine seal, construction machinery crankshaft seal
Product photos
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size (mm) | 105x135x18 |
| Material | VMQ |
| Material | VMQ Silicone Lip + Green Metal Shell |
| Temp Range | -40℃~180℃ |
| OEM | 6130-21-4231 |
| Application | Komatsu S6D105 Engine Rear Crankshaft |
| Size | 105×135×18 mm |
Pricing: request a quote (B2B / wholesale).
MOQ / commerce notes: In stock: ships in 1 to 2 days | Not in stock but still in current production: 10 to 15 days | Not in stock and not in production: 25 to 30 days
Product details
The 105x135x18mm high-temperature silicone rear crankshaft oil seal (OEM 6130-21-4231) is a premium aftermarket sealing solution specially engineered for Komatsu S6D105 construction machinery diesel engines. This heavy-duty crankshaft seal effectively solves common engine oil leakage problems at the rear crankshaft end, ensuring stable engine operation under high-temperature and high-load working conditions.
Core Product Advantages
Premium VMQ Silicone Sealing Lip
Adopts high-performance silicone material with excellent heat resistance, aging resistance and flexibility. It stably adapts to long-term high-temperature engine operation, effectively preventing oil leakage caused by rubber aging and hardening.Reinforced Green Painted Metal Shell
Integral rigid metal outer shell improves overall structural stability, ensures precise interference press-fit installation, avoids deformation under engine vibration, and maintains long-term sealing tightness.Dual-lip Leak-proof Structure
Elastic spring main lip tightly fits the crankshaft surface to lock engine oil inside the crankcase; auxiliary dust lip effectively blocks dust, sediment, moisture and external contaminants from entering the engine interior, protecting crankshaft bearings and engine core components.High Adaptability for Engineering Machinery
Perfectly matches the original installation size of Komatsu S6D105 engine rear crankshaft, suitable for engineering machinery overhaul, repair and daily MRO replacement.
Material Performance Parameters
Sealing Material：VMQ Silicone (Silicone Rubber)
Outer Shell：Anti-rust Green Painted Metal
Applicable Medium: Conventional Diesel Engine Oil
Feature：High temperature resistance, anti-aging, leak-proof, dust-proof
Packaging & Global Supply Support
Standard export neutral packaging, carton bulk packing. In stock support global shipping, fast delivery. Custom packaging and batch OEM services are available. All products can provide formal quotation, inspection documents and after-sales warranty support for global buyers.
FAQ
What is 105x135x18mm oil seal OEM 6130-21-4231 used for?
This 105x135x18mm VMQ silicone rear crankshaft oil seal with OEM number 6130-21-4231 is specially used for rear crankshaft sealing of Komatsu S6D105 construction machinery diesel engine, preventing engine oil leakage and external dust ingress.
Which engine does OEM 6130-21-4231 oil seal fit?
The OEM 6130-21-4231 crankshaft oil seal perfectly matches Komatsu S6D105 diesel engine, widely applied in Komatsu construction machinery equipment.
What material is 6130-21-4231 rear crankshaft seal?
This engine oil seal adopts high-performance VMQ silicone rubber sealing lip and anti-rust green painted metal outer shell, featuring high temperature resistance and aging resistance.
Is silicone oil seal better than NBR for engine crankshaft?
Yes. VMQ silicone seal supports -40℃ to 180℃ high temperature environment, far more suitable for engine high-heat working conditions than ordinary NBR oil seals.
Is 6130-21-4231 oil seal in stock?
Yes, we have sufficient stock of 105x135x18mm 6130-21-4231 silicone crankshaft oil seal, supporting worldwide shipping and fast delivery.
How to install 105x135x18 rear crankshaft oil seal correctly?
Clean mounting surface thoroughly, lubricate silicone lip with engine oil, press the seal vertically and evenly with professional tools, avoid hammering the rubber lip directly, and test shaft flexibility after installation.
Is this 6130-21-4231 seal original OEM part?
This is high-quality aftermarket replacement oil seal, not original OEM part. Please confirm dimensions and engine model before purchase.
What is the MOQ and delivery time for this silicone crankshaft seal?
Stock orders support fast global shipping, final terms confirmed by formal quotation.
What information do I need for RFQ of 6130-21-4231 oil seal?
Please provide seal size, OEM number, purchase quantity, destination country and working temperature/medium to get accurate quotation.