21-36 - Plastic Oil/Grease Cap – 4" Threaded Lexan – For 9K–15K Hubs | DXT
21-36 - Plastic Oil/Grease Cap – 4" Threaded Lexan – For 9K–15K Hubs | DXT
This clear Lexan plastic oil/grease cap is a threaded replacement for Dexter 9K–15K axle hubs. With a 4.000" outer diameter and durable see-through construction, it allows for easy oil level inspection in oil bath systems. Designed for screw-in installation, it fits a wide range of Dexter heavy-duty and general-duty axles, including 9K (post-Oct. 1989), 10K, 12K, and 15K models.
Detailed Information:
| Outer Diameter | 4.000" |
|---|---|
| Material | Clear Lexan Plastic |
| Thread Style | Screw-In (Threaded) |
| Axle Rating | 9,000–15,000 lbs |
Fitting:
Fits Dexter 9K axles manufactured after October 1989, 10K general duty 2-piece hubs, and Dexter 10K HD to 15K oil bath hub assemblies. Uses O-ring #10-50 and oil cap plug #46-32 (sold separately).
Features:
- Clear Lexan Body: Provides visual access to check oil level without removing the cap.
- High Load Compatibility: Suitable for use on 9K, 10K, 12K, and 15K trailer axles.
- Threaded Design: 4" screw-in style ensures a tight, leak-resistant seal.
- OEM Fit: Direct replacement for Dexter 21-36 and 021-036 oil caps.
Interchangeable Part Numbers:
- 21-36
- 021-036
- 021-036-00
- 7700030
Product Overview:
This 4" OD clear Lexan threaded oil cap is a reliable replacement for Dexter heavy-duty axle hubs ranging from 9K to 15K. Built for durability and ease of inspection, it's a smart solution for fleets and trailers operating oil bath systems where visibility and performance matter.
- Product type: Oil & Dust Caps
