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Skyjacker U-Bolt Kits

4.14 out of 5 stars 44 Customer Reviews

Replace your old or broken U-bolts with these high-strength Skyjacker replacement U-bolt kits. These kits will work with stock or aftermarket leaf spring packs.

Results 1 - 25 of 132

U-Bolt, Round, 9/16 in. Diameter, 3 in. Inside Width, 7 1/2 in. Inside Length, Each

Part Number: SJA-916X3X712

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X4X12

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Square-Style, Each

Part Number: SJA-58X318X1612

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Set of 4

Part Number: SJA-U9B16R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X4X10

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Round, 5/8 in. Diameter, 3 1/8 in. Inside Width, 9 1/2 in. Inside Length, with Nuts, Each

Part Number: SJA-58X318X912

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 9/16 in. Diameter, Square-Style, Each

Part Number: SJA-916X318X1312

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Set of 4

Part Number: SJA-U9B8R

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Round-Style, Set of 4

Part Number: SJA-U5B2R

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 9/16 in. Diameter, Round-Style, Each

Part Number: SJA-916X314X1312

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 1/2 in. Diameter, Round-Style, Set of 4

Part Number: SJA-U3B2R

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X312X18

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X312X12

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X312X1012

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Square-Style, Set of 4

Part Number: SJA-UDB3R

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

U-Bolt, Steel, Black Painted, 9/16 in. Diameter, Round-Style, Each

Part Number: SJA-916X4X912

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X338X912

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 9/16 in. Diameter, Square-Style, Each

Part Number: SJA-916X318X812

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolt, Steel, Black Painted, 5/8 in. Diameter, Round-Style, Each

Part Number: SJA-58X358X914

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Square-Style, Set of 4

Part Number: SJA-UFF

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

1 U-BOLT W/NUTS

Part Number: SJA-58X318X1312

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Round-Style, Set of 4

Part Number: SJA-U5WR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Semi-Round-Style, Set of 4

Part Number: SJA-U9FF

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

U-Bolts, Square, Steel, Black, 0.625 in. Diameter, 2.750 in. I.D. Width, 10.500 in. Length, Each

Part Number: SJA-58X234X1012

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

U-Bolts, Steel, Black Painted, 9/16 in. Diameter, Square-Style, Set of 4

Part Number: SJA-UDB6R

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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