Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Need trailer parts help? Send photos and measurements  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review → Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Need trailer parts help? Send photos and measurements  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review →
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Bearings Seals Races

2 - Dexter FORTRESS 4" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-305-00-PAIR)
2 - Dexter FORTRESS 4" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-305-00-PAIR)
$96.74
2 - Dexter FORTRESS 3.75" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-304-00-PAIR)
2 - Dexter FORTRESS 3.75" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-304-00-PAIR)
$84.99
2 - Dexter FORTRESS 2.875" Diameter Aluminum 21-35 Oil Cap for 5,200-8,000 lb axles (K21-303-00-PAIR)
2 - Dexter FORTRESS 2.875" Diameter Aluminum 21-35 Oil Cap for 5,200-8,000 lb axles (K21-303-00-PAIR)
$84.00
2 - Dexter FORTRESS 3.5" Diameter Aluminum 21-88 Oil Cap for 9-10,000lb axles (K21-302-00-PAIR)
2 - Dexter FORTRESS 3.5" Diameter Aluminum 21-88 Oil Cap for 9-10,000lb axles (K21-302-00-PAIR)
$84.00
2 - Dexter FORTRESS 4" Diameter Aluminum 21-36 Oil Cap for 10-15,000 lb axles (K21-301-00-PAIR)
2 - Dexter FORTRESS 4" Diameter Aluminum 21-36 Oil Cap for 10-15,000 lb axles (K21-301-00-PAIR)
$95.13
Dexter FORTRESS 4" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-305-00)
Dexter FORTRESS 4" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-305-00)
$57.25
Dexter FORTRESS 3.75" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-304-00)
Dexter FORTRESS 3.75" Diameter Aluminum Oil Cap for 10,000-16,000 lb axles (K21-304-00)
$48.28
Dexter FORTRESS 2.875" Diameter Aluminum 21-35 Oil Cap for 5,200-8,000 lb axles (K21-303-00)
Dexter FORTRESS 2.875" Diameter Aluminum 21-35 Oil Cap for 5,200-8,000 lb axles (K21-303-00)
$42.00
Dexter FORTRESS 3.5" Diameter Aluminum 21-88 Oil Cap for 9-10,000lb axles (K21-302-00)
Dexter FORTRESS 3.5" Diameter Aluminum 21-88 Oil Cap for 9-10,000lb axles (K21-302-00)
$42.00
Dexter FORTRESS 4" Diameter Aluminum 21-36 Oil Cap for 10-15,000 lb axles (K21-301-00)
Dexter FORTRESS 4" Diameter Aluminum 21-36 Oil Cap for 10-15,000 lb axles (K21-301-00)
$55.63
Dexter 15K Hub Kit D150 Axle 8 Lug X 275mm Trailer Axle fits 9-28 Drum 8-401 Hub (008-401-05-CAP-KIT)
Dexter 15K Hub Kit D150 Axle 8 Lug X 275mm Trailer Axle fits 9-28 Drum 8-401 Hub (008-401-05-CAP-KIT)
$739.99 — Sold Out
Genuine Dexter 15K Trailer Hub Kit D150 Axle 8 Lug X 275mm Fits 9-28 Drum 8-401 (008-401-05-KIT)
Genuine Dexter 15K Trailer Hub Kit D150 Axle 8 Lug X 275mm Fits 9-28 Drum 8-401 (008-401-05-KIT)
$679.99 — Sold Out