1 1
DEXTER

Plastic Oil/Grease Cap – For 9K–10K GD Hubs | DXT
SKU: 10PL-GO-CPDXR
$28.00 USD $28.00 USD $37.00 USD
Sale 24.32% $9.00 USD (24.32%)
Shipping calculated at checkout.
In stock
Description

This heavy-duty plastic oil/grease cap kit is designed for Dexter 9,000–10,000 lb General Duty (GD) axles, providing a reliable sealing solution for oil bath hub systems. With a 3.5" threaded diameter and complete installation kit included, this cap ensures long-lasting protection and easy maintenance for high-capacity trailer hubs.

Detailed Information:
Overall Diameter 3.89"
Thread Diameter 3.5"
Inner Diameter 3.1"
Thread Count 12
Axle Rating 9,000–10,000 lbs (GD)
Fitting:

Fits Dexter 9K, 10K GD, and #13G axles manufactured after July 2009. Compatible with drum models 8-415 (after July 2009) and 8-430 (after April 2013). Replaces Dexter® oil cap part number 021-088-00.

Features:
  • Comprehensive Kit: Includes oil cap, rubber plug, and O-ring for a complete and secure seal.
  • High-Quality Materials: Built from durable plastic for long-lasting use in oil bath systems.
  • OEM Compatibility: Designed to match Dexter specs for a direct-fit replacement.
  • Leak-Resistant Design: Provides tight sealing to protect bearings and prevent oil loss.
Interchangeable Part Numbers:
  • K71-704-2
  • 021-088-00
  • 21-88
  • 0910OCAP2188-NS
  • KC-21-88
Product Overview:

This 3.5" plastic screw-in oil/grease cap kit is purpose-built for 9K–10K Dexter General Duty axles. With wide compatibility, rugged design, and all essential components included, it ensures efficient maintenance and long-term reliability for your high-capacity trailer system.

We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Plastic Oil/Grease Cap – For 9K–10K GD Hubs | DXT

Customer Reviews

Based on 12 reviews
75%
(9)
25%
(3)
0%
(0)
0%
(0)
0%
(0)
L
Luis Alvarez
Stops Leaks Completely

Replaced my old cracked cap and this one sealed perfectly. Oil level stays stable now.

W
Wayne Churms
Solid Performance in All Weather

Tested in both summer heat and heavy rain—no issues at all.

C
Claudian Atwill
Perfect Fit for My Dexter Hub

Fits my 10K GD hub exactly—threads match perfectly and no leaks so far.

N
Noah Adams
Reliable Fit for 9K Axle

Used on my 9K GD axle and it’s holding perfectly. No cross-threading issues.

V
Viktor Kozlov
Great OEM Replacement

Matched my Dexter part number exactly. Installation took less than 5 minutes.

123
11.gif

SIGN UP FOR OUR NEWSLETTER!

Learn about our products, weekly sales, discount codes and much more
logo5.png