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DEXTER

21-36 - Plastic Oil/Grease Cap – 4" Threaded Lexan – For 9K–15K Hubs | DXT
SKU: 1215-GO-CPDXT
$35.00 USD $35.00 USD $47.00 USD
Sale 25.53% $12.00 USD (25.53%)
Shipping calculated at checkout.
In stock

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*Some exclusions may apply

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Description

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.
21-36 - Plastic Oil/Grease Cap – 4" Threaded Lexan – For 9K–15K Hubs | DXT
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