Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 14 - Jun 19
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Description
21-88 - Plastic Oil/Grease Cap – For 9K–10K GD Hubs | MTThis heavy duty plastic oil grease cap kit is designed for Dexter 9,00010,000 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
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 698 reviews
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Product Reviews
★★★★★ 5
Great product
Size: 5 FT, Style: 0 (1/0) AWG RED
Good quality cable.
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Reviewed in the United States on February 1, 2026
★★★★★ 5
Heavy duty and has lasted three years so far
I have had this relay installed in the engine bay of my Lexus RX 300, functioning to link the front battery to the additional battery in the trunk whenever the ignition is on. The relay has worked reliably for about three years now with no complaints besides one minor comment, be careful when threading down the nut on the Low voltage side. It is prone to stripping
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Reviewed in the United States on March 24, 2025
★★★★★ 5
It delivers as advertised.
Works as advertised, and is easy to install.
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Reviewed in the United States on August 18, 2025
★★★★★ 5
Heavy Duty!!
Performed extremely well. No buzzzing or poor connection. Extremely well built and has been working issue free for over 6 months! Instalation can be a bit difficult due to size and weight. Not really a problem.
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Reviewed in the United States on November 25, 2024
★★★★★ 4
Seems to be ok for the money
We use it to power a 2000w inverter for the refrigerator and microwave on our boat where sometimes it will stay on continuously throughout the day and it hasn't let us down. As others have said, the terminals are awful close together but for the money, it's worth it.
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Reviewed in the United States on January 21, 2025
