uxcell 2 Pcs 3.75 Trailer Oil Cap Kit Oil Bath Dust Cap Plugs for AL/KO 10000 or If you encounter any problems, please contact us and we will assist you. Oil Bath Cap 4 Inch Thread 4)Oil Cap For Dexter 10K 12K& 15K 4.0" Threads Trailer Axle 21-36 Oil Cap [Replace Parts Number] K71-148-00., Each part: Oil Caps - 021-036-00; O-Rings - 010-050-00; Plugs - 046-032-00., [Fitment]Compatible with: 21-36 Oil Cap Fits for Dexter 9K (AFTER 10-1-1989), 10K, 12K, and 15K Axles. High Quality Materials - This oil caps made of high-quality durable ABS Plastic, it is corrosion-resistant, oxidation-resistant, and has a long service life. About Install - Easy installation, only need to tighten the thread during installation, no need to drill Trailer Axle 21-36 Replacement Oil Cap For Dexter 10K HD 12K 15K Axle, 4 Trailer Parts Kit Part Number: K71-148-00., Outside diameter -4, Thread 4-12'. Packing... [Specification]Outside Diameter: 4; Thread: 4-12; Depth 1-1/2. [Replace Parts Number] K71-148-00., Each part: Oil Caps - 021-036-00; O-Rings - 010-050-00; Plugs - 046-032-00., [High-quality Material] Made of durable and high-hardness plastic, good anti-breakage and explosion-proof performance, has a long service life.